Hue 之 SparkSql interpreters的配置及使用

1、环境说明:

  HDP 2.4 V3 sandbox

  hue 4.0.0

2、hue 4.0.0 编译及安装

  地址:https://github.com/cloudera/hue/releases/tag/release-4.1.0(也许是发版这弄错了吧,连接是4.1.0,内容版本是4.0.0)

  2.1 修改%HUE_CODE_HOME%/hue/maven/pom.xml版本,如下:  

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2.7.1

2.7.1

1.6.0

  2.2 将hadoop-core修改为hadoop-common(core会报错找不到)

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hadoop-common

  2.3 将hadoop-test的版本改为1.2.1:

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hadoop-test1.2.1

  2.4 删除多余文件,否则编译时会报错

将两个ThriftJobTrackerPlugin.java文件删除,分别在如下两个目录:

%HUE_CODE_HOME%/hue/desktop/libs/hadoop/java/src/main/java/org/apache/hadoop/thriftfs/ThriftJobTrackerPlugin.java

%HUE_CODE_HOME%/hue/desktop/libs/hadoop/java/src/main/java/org/apache/hadoop/mapred/ThriftJobTrackerPlugin.java

  2.5 编译安装  

  PREFIX=/usr/local/hue-4.0.0-release/ make clean  //指定要安装的目录

  rm -rf /usr/local/hue-4.0.0-release/*

  PREFIX=/usr/local/hue-4.0.0-release/ make install

3. spark thrift server 配置及启动

hdp 2.4 V3 的  spark thrift server  默认端口是10015,我们将此信息配置到 /usr/hdp/current/spark-thriftserver/conf/hive-site.xml中,如下:(我没找到在ambari启动spark thrift-server的入口,只能手动启动)

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        hive.metastore.uris

        thrift://sandbox.hortonworks.com:9083

    

    

        hive.server2.thrift.port

        10015

        

            Port number of HiveServer2 Thrift interface.  Can be overridden by setting $HIVE_SERVER2_THRIFT_PORT

        

    

  配置完之后,启动thrift-server。

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cd /usr/hdp/current/spark-thriftserver/

sbin/start-thriftserver.sh --master yarn --deploy-mode client

4 配置hue.ini  (/usr/local/hue-4.0.0-release/hue/desktop/conf/hue.ini)

 4.1 反注释   [[interpreters]] 下的 sparksql,如下:

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[[interpreters]]

    # Define the name and how to connect and execute the language.

    [[[hive]]]

      # The name of the snippet.

      name=Hive

      # The backend connection to use to communicate with the server.

      interface=hiveserver2

    [[[impala]]]

      name=Impala

      interface=hiveserver2

    [[[sparksql]]]

      name=SparkSql

      interface=hiveserver2

    [[[spark]]]

      name=Scala

      interface=livy

    [[[pyspark]]]

      name=PySpark

      interface=livy

    [[[r]]]

      name=R

      interface=livy

    [[[jar]]]

      name=Spark Submit Jar

      interface=livy-batch

  4.2 配置spark 的livy server 如下:

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###########################################################################

# Settings to configure the Spark application.

###########################################################################

[spark]

  # Host address of the Livy Server.

  livy_server_host=localhost

  # Port of the Livy Server.

  livy_server_port=8998

  # Configure Livy to start in local 'process' mode, or 'yarn' workers.

  livy_server_session_kind=yarn

  # Whether Livy requires client to perform Kerberos authentication.

  security_enabled=false

  # Host of the Sql Server

  sql_server_host=localhost

  # Port of the Sql Server

  sql_server_port=10015

  注意:端口配置为spark-thrift server 端口10015

   5 验证结果

  5.1 确保spark-thrift server已经启动  

cd /usr/hdp/current/spark-thriftserver/
sbin/start-thriftserver.sh --master yarn --deploy-mode client

   5.2 启动hue  

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cd /usr/local/hue-4.0.0-release/hue/

build/env/bin/supervisor

   5.3 登录hue,选择notebook-editor-sparksql,录入sql

Hue 之 SparkSql interpreters的配置及使用_第1张图片

 5.4 打开yarn页面,可以看到当前有一个spark thrift server 的job。

 Hue 之 SparkSql interpreters的配置及使用_第2张图片

    5.5 执行5.3 的sql,点击5.4 job 右侧的applicationMaster ,进入spark页面,可以看到如下spark job。在stages页面,我们可以看到执行的sql,

Hue 之 SparkSql interpreters的配置及使用_第3张图片

5.6 待执行完成之后,查看hue页面,可以看到查到的数据如下:

Hue 之 SparkSql interpreters的配置及使用_第4张图片

至此,说明 hue发起的请求,spark thrift server 已经接收到,且能够正常执行。 

6  额外说明:

细心的读者可能发现了,我们配置了livy server,但是却没有启动livy-server。

在此说明:spark sql 执行(使用 spark sql [[interpreters]] )的时候,不使用livy server。直接把sql 提交到了 spark 的thrift server 上,但是要读取livy server中的sql_server_port变量

只有在使用spark scala 这些interpreters的时候,才会用到 livy-server

附hue.ini

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# Hue configuration file

# ===================================

#

# For complete documentation about the contents of this file, run

#   $ /build/env/bin/hue config_help

#

# All .ini files under the current directory are treated equally.  Their

# contents are merged to form the Hue configuration, which can

# can be viewed on the Hue at

#   http://:/dump_config

###########################################################################

# General configuration for core Desktop features (authentication, etc)

###########################################################################

[desktop]

  # Set this to a random string, the longer the better.

  # This is used for secure hashing in the session store.

  secret_key=asjlkajfslajflalfj

  # Execute this script to produce the Django secret key. This will be used when

  # 'secret_key' is not set.

  ## secret_key_script=

  # Webserver listens on this address and port

  http_host=0.0.0.0

  http_port=8890

  # Choose whether to enable the new Hue 4 interface.

  is_hue_4=true

  # A comma-separated list of available Hue load balancers

  ## hue_load_balancer=

  # Time zone name

  # time_zone=America/Los_Angeles

  time_zone=Asia/Shanghai

  # Enable or disable Django debug mode.

  django_debug_mode=false

  # Enable or disable database debug mode.

  ## database_logging=false

  # Whether to send debug messages from JavaScript to the server logs.

  ## send_dbug_messages=false

  # Enable or disable backtrace for server error

  http_500_debug_mode=false

  # Enable or disable memory profiling.

  ## memory_profiler=false

  # Server email for internal error messages

  ## django_server_email='[email protected]'

  # Email backend

  ## django_email_backend=django.core.mail.backends.smtp.EmailBackend

  # Webserver runs as this user

  server_user=root

  server_group=root

  # This should be the Hue admin and proxy user

  default_user=root

  # This should be the hadoop cluster admin

  default_hdfs_superuser=hdfs

  # If set to false, runcpserver will not actually start the web server.

  # Used if Apache is being used as a WSGI container.

  ## enable_server=yes

  # Number of threads used by the CherryPy web server

  ## cherrypy_server_threads=40

  # This property specifies the maximum size of the receive buffer in bytes in thrift sasl communication (default 2 MB).

  ## sasl_max_buffer=2 * 1024 * 1024

  # Filename of SSL Certificate

  ## ssl_certificate=

  # Filename of SSL RSA Private Key

  ## ssl_private_key=

  # Filename of SSL Certificate Chain

  ## ssl_certificate_chain=

  # SSL certificate password

  ## ssl_password=

  # Execute this script to produce the SSL password. This will be used when 'ssl_password' is not set.

  ## ssl_password_script=

  # X-Content-Type-Options: nosniff This is a HTTP response header feature that helps prevent attacks based on MIME-type confusion.

  ## secure_content_type_nosniff=true

  # X-Xss-Protection: \"1; mode=block\" This is a HTTP response header feature to force XSS protection.

  ## secure_browser_xss_filter=true

  # X-Content-Type-Options: nosniff This is a HTTP response header feature that helps prevent attacks based on MIME-type confusion.

  ## secure_content_security_policy="script-src 'self' 'unsafe-inline' 'unsafe-eval' *.google-analytics.com *.doubleclick.net data:;img-src 'self' *.google-analytics.com *.doubleclick.net http://*.tile.osm.org *.tile.osm.org *.gstatic.com data:;style-src 'self' 'unsafe-inline' fonts.googleapis.com;connect-src 'self';frame-src *;child-src 'self' data: *.vimeo.com;object-src 'none'"

  # Strict-Transport-Security HTTP Strict Transport Security(HSTS) is a policy which is communicated by the server to the user agent via HTTP response header field name “Strict-Transport-Security”. HSTS policy specifies a period of time during which the user agent(browser) should only access the server in a secure fashion(https).

  ## secure_ssl_redirect=False

  ## secure_redirect_host=0.0.0.0

  ## secure_redirect_exempt=[]

  ## secure_hsts_seconds=31536000

  ## secure_hsts_include_subdomains=true

  # List of allowed and disallowed ciphers in cipher list format.

  # See http://www.openssl.org/docs/apps/ciphers.html for more information on

  # cipher list format. This list is from

  # https://wiki.mozilla.org/Security/Server_Side_TLS v3.7 intermediate

  # recommendation, which should be compatible with Firefox 1, Chrome 1, IE 7,

  # Opera 5 and Safari 1.

  ## ssl_cipher_list=ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS:!DH:!ADH

  # Path to default Certificate Authority certificates.

  ## ssl_cacerts=/etc/hue/cacerts.pem

  # Choose whether Hue should validate certificates received from the server.

  ## validate=true

  # Default LDAP/PAM/.. username and password of the hue user used for authentications with other services.

  # Inactive if password is empty.

  # e.g. LDAP pass-through authentication for HiveServer2 or Impala. Apps can override them individually.

  ## auth_username=hue

  ## auth_password=

  # Default encoding for site data

  ## default_site_encoding=utf-8

  # Help improve Hue with anonymous usage analytics.

  # Use Google Analytics to see how many times an application or specific section of an application is used, nothing more.

  ## collect_usage=true

  # Tile layer server URL for the Leaflet map charts

  # Read more on http://leafletjs.com/reference.html#tilelayer

  # Make sure you add the tile domain to the img-src section of the 'secure_content_security_policy' configuration parameter as well.

  ## leaflet_tile_layer=http://{s}.tile.osm.org/{z}/{x}/{y}.png

  # The copyright message for the specified Leaflet maps Tile Layer

  ## leaflet_tile_layer_attribution='© OpenStreetMap contributors'

  # X-Frame-Options HTTP header value. Use 'DENY' to deny framing completely

  ## http_x_frame_options=SAMEORIGIN

  # Enable X-Forwarded-Host header if the load balancer requires it.

  ## use_x_forwarded_host=true

  # Support for HTTPS termination at the load-balancer level with SECURE_PROXY_SSL_HEADER.

  ## secure_proxy_ssl_header=false

  # Comma-separated list of Django middleware classes to use.

  # See https://docs.djangoproject.com/en/1.4/ref/middleware/ for more details on middlewares in Django.

  ## middleware=desktop.auth.backend.LdapSynchronizationBackend

  # Comma-separated list of regular expressions, which match the redirect URL.

  # For example, to restrict to your local domain and FQDN, the following value can be used:

  # ^\/.*$,^http:\/\/www.mydomain.com\/.*$

  ## redirect_whitelist=^(\/[a-zA-Z0-9]+.*|\/)$

  # Comma separated list of apps to not load at server startup.

  # e.g.: pig,zookeeper

  app_blacklist=impala,security

  # Id of the cluster where Hue is located.

  ## cluster_id='default'

  # Choose whether to show the new SQL editor.

  ## use_new_editor=true

  # Choose whether to show the improved assist panel and the right context panel

  ## use_new_side_panels=false

  # Editor autocomplete timeout (ms) when fetching columns, fields, tables etc.

  # To disable this type of autocompletion set the value to 0.

  ## editor_autocomplete_timeout=30000

  # Enable saved default configurations for Hive, Impala, Spark, and Oozie.

  ## use_default_configuration=false

  # The directory where to store the auditing logs. Auditing is disable if the value is empty.

  # e.g. /var/log/hue/audit.log

  ## audit_event_log_dir=

  # Size in KB/MB/GB for audit log to rollover.

  ## audit_log_max_file_size=100MB

  # A json file containing a list of log redaction rules for cleaning sensitive data

  # from log files. It is defined as:

  #

  # {

  #   "version": 1,

  #   "rules": [

  #     {

  #       "description": "This is the first rule",

  #       "trigger": "triggerstring 1",

  #       "search": "regex 1",

  #       "replace": "replace 1"

  #     },

  #     {

  #       "description": "This is the second rule",

  #       "trigger": "triggerstring 2",

  #       "search": "regex 2",

  #       "replace": "replace 2"

  #     }

  #   ]

  # }

  #

  # Redaction works by searching a string for the [TRIGGER] string. If found,

  # the [REGEX] is used to replace sensitive information with the

  # [REDACTION_MASK].  If specified with 'log_redaction_string', the

  # 'log_redaction_string' rules will be executed after the

  # 'log_redaction_file' rules.

  #

  # For example, here is a file that would redact passwords and social security numbers:

  # {

  #   "version": 1,

  #   "rules": [

  #     {

  #       "description": "Redact passwords",

  #       "trigger": "password",

  #       "search": "password=\".*\"",

  #       "replace": "password=\"???\""

  #     },

  #     {

  #       "description": "Redact social security numbers",

  #       "trigger": "",

  #       "search": "\d{3}-\d{2}-\d{4}",

  #       "replace": "XXX-XX-XXXX"

  #     }

  #   ]

  # }

  ## log_redaction_file=

  # Comma separated list of strings representing the host/domain names that the Hue server can serve.

  # e.g.: localhost,domain1,*

  ## allowed_hosts="*"

  # Administrators

  # ----------------

  [[django_admins]]

    ## [[[admin1]]]

    ## name=john

    ## [email protected]

  # UI customizations

  # -------------------

  [[custom]]

    # Top banner HTML code

    # e.g.

Test Lab A2 Hue Services

    ## banner_top_html='

This is Hue 4 Beta! - Please feel free to email any feedback / questions to [email protected] or @gethue.
'

    # Login splash HTML code

    # e.g. WARNING: You are required to have authorization before you proceed

    ## login_splash_html=

GetHue.com



WARNING: You have accessed a computer managed by GetHue. You are required to have authorization from GetHue before you proceed.

    # Cache timeout in milliseconds for the assist, autocomplete, etc.

    # defaults to 86400000 (1 day), set to 0 to disable caching

    ## cacheable_ttl=86400000

    # SVG code to replace the default Hue logo in the top bar and sign in screen

    # e.g.

    ## logo_svg=

  # Configuration options for user authentication into the web application

  # ------------------------------------------------------------------------

  [[auth]]

    # Authentication backend. Common settings are:

    # - django.contrib.auth.backends.ModelBackend (entirely Django backend)

    # - desktop.auth.backend.AllowAllBackend (allows everyone)

    # - desktop.auth.backend.AllowFirstUserDjangoBackend

    #     (Default. Relies on Django and user manager, after the first login)

    # - desktop.auth.backend.LdapBackend

    # - desktop.auth.backend.PamBackend

    # - desktop.auth.backend.SpnegoDjangoBackend

    # - desktop.auth.backend.RemoteUserDjangoBackend

    # - libsaml.backend.SAML2Backend

    # - libopenid.backend.OpenIDBackend

    # - liboauth.backend.OAuthBackend

    #     (New oauth, support Twitter, Facebook, Google+ and Linkedin

    # Multiple Authentication backends are supported by specifying a comma-separated list in order of priority.

    # However, in order to enable OAuthBackend, it must be the ONLY backend configured.

    ## backend=desktop.auth.backend.AllowFirstUserDjangoBackend

    # Class which defines extra accessor methods for User objects.

    ## user_aug=desktop.auth.backend.DefaultUserAugmentor

    # The service to use when querying PAM.

    ## pam_service=login

    # When using the desktop.auth.backend.RemoteUserDjangoBackend, this sets

    # the normalized name of the header that contains the remote user.

    # The HTTP header in the request is converted to a key by converting

    # all characters to uppercase, replacing any hyphens with underscores

    # and adding an HTTP_ prefix to the name. So, for example, if the header

    # is called Remote-User that would be configured as HTTP_REMOTE_USER

    #

    # Defaults to HTTP_REMOTE_USER

    ## remote_user_header=HTTP_REMOTE_USER

    # Ignore the case of usernames when searching for existing users.

    # Supported in remoteUserDjangoBackend and SpnegoDjangoBackend

    ## ignore_username_case=true

    # Forcibly cast usernames to lowercase, takes precedence over force_username_uppercase

    # Supported in remoteUserDjangoBackend and SpnegoDjangoBackend

    ## force_username_lowercase=true

    # Forcibly cast usernames to uppercase, cannot be combined with force_username_lowercase

    ## force_username_uppercase=false

    # Users will expire after they have not logged in for 'n' amount of seconds.

    # A negative number means that users will never expire.

    ## expires_after=-1

    # Apply 'expires_after' to superusers.

    ## expire_superusers=true

    # Users will automatically be logged out after 'n' seconds of inactivity.

    # A negative number means that idle sessions will not be timed out.

    idle_session_timeout=-1

    # Force users to change password on first login with desktop.auth.backend.AllowFirstUserDjangoBackend

    ## change_default_password=false

    # Number of login attempts allowed before a record is created for failed logins

    ## login_failure_limit=3

    # After number of allowed login attempts are exceeded, do we lock out this IP and optionally user agent?

    ## login_lock_out_at_failure=false

    # If set, defines period of inactivity in hours after which failed logins will be forgotten.

    # A value of 0 or None will disable this check. Default: None

    ## login_cooloff_time=None

    # If True, lock out based on an IP address AND a user agent.

    # This means requests from different user agents but from the same IP are treated differently.

    ## login_lock_out_use_user_agent=false

    # If True, lock out based on IP and user

    ## login_lock_out_by_combination_user_and_ip=false

    # If True, it will look for the IP address from the header defined at reverse_proxy_header.

    ## behind_reverse_proxy=false

    # If behind_reverse_proxy is True, it will look for the IP address from this header. Default: HTTP_X_FORWARDED_FOR

    ## reverse_proxy_header=HTTP_X_FORWARDED_FOR

  # Configuration options for connecting to LDAP and Active Directory

  # -------------------------------------------------------------------

  [[ldap]]

    # The search base for finding users and groups

    ## base_dn="DC=mycompany,DC=com"

    # URL of the LDAP server

    ## ldap_url=ldap://auth.mycompany.com

    # The NT domain used for LDAP authentication

    ## nt_domain=mycompany.com

    # A PEM-format file containing certificates for the CA's that

    # Hue will trust for authentication over TLS.

    # The certificate for the CA that signed the

    # LDAP server certificate must be included among these certificates.

    # See more here http://www.openldap.org/doc/admin24/tls.html.

    ## ldap_cert=

    ## use_start_tls=true

    # Distinguished name of the user to bind as -- not necessary if the LDAP server

    # supports anonymous searches

    ## bind_dn="CN=ServiceAccount,DC=mycompany,DC=com"

    # Password of the bind user -- not necessary if the LDAP server supports

    # anonymous searches

    ## bind_password=

    # Execute this script to produce the bind user password. This will be used

    # when 'bind_password' is not set.

    ## bind_password_script=

    # Pattern for searching for usernames -- Use for the parameter

    # For use when using LdapBackend for Hue authentication

    ## ldap_username_pattern="uid=,ou=People,dc=mycompany,dc=com"

    # Create users in Hue when they try to login with their LDAP credentials

    # For use when using LdapBackend for Hue authentication

    ## create_users_on_login = true

    # Synchronize a users groups when they login

    ## sync_groups_on_login=false

    # Ignore the case of usernames when searching for existing users in Hue.

    ## ignore_username_case=true

    # Force usernames to lowercase when creating new users from LDAP.

    # Takes precedence over force_username_uppercase

    ## force_username_lowercase=true

    # Force usernames to uppercase, cannot be combined with force_username_lowercase

    ## force_username_uppercase=false

    # Use search bind authentication.

    ## search_bind_authentication=true

    # Choose which kind of subgrouping to use: nested or suboordinate (deprecated).

    ## subgroups=suboordinate

    # Define the number of levels to search for nested members.

    ## nested_members_search_depth=10

    # Whether or not to follow referrals

    ## follow_referrals=false

    # Enable python-ldap debugging.

    ## debug=false

    # Sets the debug level within the underlying LDAP C lib.

    ## debug_level=255

    # Possible values for trace_level are 0 for no logging, 1 for only logging the method calls with arguments,

    # 2 for logging the method calls with arguments and the complete results and 9 for also logging the traceback of method calls.

    ## trace_level=0

    [[[users]]]

      # Base filter for searching for users

      ## user_filter="objectclass=*"

      # The username attribute in the LDAP schema

      ## user_name_attr=sAMAccountName

    [[[groups]]]

      # Base filter for searching for groups

      ## group_filter="objectclass=*"

      # The group name attribute in the LDAP schema

      ## group_name_attr=cn

      # The attribute of the group object which identifies the members of the group

      ## group_member_attr=members

    [[[ldap_servers]]]

      ## [[[[mycompany]]]]

        # The search base for finding users and groups

        ## base_dn="DC=mycompany,DC=com"

        # URL of the LDAP server

        ## ldap_url=ldap://auth.mycompany.com

        # The NT domain used for LDAP authentication

        ## nt_domain=mycompany.com

        # A PEM-format file containing certificates for the CA's that

        # Hue will trust for authentication over TLS.

        # The certificate for the CA that signed the

        # LDAP server certificate must be included among these certificates.

        # See more here http://www.openldap.org/doc/admin24/tls.html.

        ## ldap_cert=

        ## use_start_tls=true

        # Distinguished name of the user to bind as -- not necessary if the LDAP server

        # supports anonymous searches

        ## bind_dn="CN=ServiceAccount,DC=mycompany,DC=com"

        # Password of the bind user -- not necessary if the LDAP server supports

        # anonymous searches

        ## bind_password=

        # Execute this script to produce the bind user password. This will be used

        # when 'bind_password' is not set.

        ## bind_password_script=

        # Pattern for searching for usernames -- Use for the parameter

        # For use when using LdapBackend for Hue authentication

        ## ldap_username_pattern="uid=,ou=People,dc=mycompany,dc=com"

        ## Use search bind authentication.

        ## search_bind_authentication=true

        # Whether or not to follow referrals

        ## follow_referrals=false

        # Enable python-ldap debugging.

        ## debug=false

        # Sets the debug level within the underlying LDAP C lib.

        ## debug_level=255

        # Possible values for trace_level are 0 for no logging, 1 for only logging the method calls with arguments,

        # 2 for logging the method calls with arguments and the complete results and 9 for also logging the traceback of method calls.

        ## trace_level=0

        ## [[[[[users]]]]]

          # Base filter for searching for users

          ## user_filter="objectclass=Person"

          # The username attribute in the LDAP schema

          ## user_name_attr=sAMAccountName

        ## [[[[[groups]]]]]

          # Base filter for searching for groups

          ## group_filter="objectclass=groupOfNames"

          # The username attribute in the LDAP schema

          ## group_name_attr=cn

  # Configuration options for specifying the Source Version Control.

  # ----------------------------------------------------------------

  [[vcs]]

  ## [[[git-read-only]]]

      ## Base URL to Remote Server

      # remote_url=https://github.com/cloudera/hue/tree/master

      ## Base URL to Version Control API

      # api_url=https://api.github.com

  ## [[[github]]]

      ## Base URL to Remote Server

      # remote_url=https://github.com/cloudera/hue/tree/master

      ## Base URL to Version Control API

      # api_url=https://api.github.com

      # These will be necessary when you want to write back to the repository.

      ## Client ID for Authorized Application

      # client_id=

      ## Client Secret for Authorized Application

      # client_secret=

  ## [[[svn]]

      ## Base URL to Remote Server

      # remote_url=https://github.com/cloudera/hue/tree/master

      ## Base URL to Version Control API

      # api_url=https://api.github.com

      # These will be necessary when you want to write back to the repository.

      ## Client ID for Authorized Application

      # client_id=

      ## Client Secret for Authorized Application

      # client_secret=

  # Configuration options for specifying the Desktop Database. For more info,

  # see http://docs.djangoproject.com/en/1.4/ref/settings/#database-engine

  # ------------------------------------------------------------------------

  [[database]]

    # Database engine is typically one of:

    # postgresql_psycopg2, mysql, sqlite3 or oracle.

    #

    # Note that for sqlite3, 'name', below is a path to the filename. For other backends, it is the database name

    # Note for Oracle, options={"threaded":true} must be set in order to avoid crashes.

    # Note for Oracle, you can use the Oracle Service Name by setting "host=" and "port=" and then "name=:/".

    # Note for MariaDB use the 'mysql' engine.

    ## engine=sqlite3

    ## host=

    ## port=

    ## user=

    ## password=

    engine=mysql

    host=localhost

    port=3306

    user=hive

    password=hive

    name=hive

    # conn_max_age option to make database connection persistent value in seconds

    # https://docs.djangoproject.com/en/1.9/ref/databases/#persistent-connections

    ## conn_max_age=0

    # Execute this script to produce the database password. This will be used when 'password' is not set.

    ## password_script=/path/script

    ## name=desktop/desktop.db

    ## options={}

    # Database schema, to be used only when public schema is revoked in postgres

    ## schema=public

  # Configuration options for specifying the Desktop session.

  # For more info, see https://docs.djangoproject.com/en/1.4/topics/http/sessions/

  # ------------------------------------------------------------------------

  [[session]]

    # The cookie containing the users' session ID will expire after this amount of time in seconds.

    # Default is 2 weeks.

    ## ttl=1209600

    # The cookie containing the users' session ID and csrf cookie will be secure.

    # Should only be enabled with HTTPS.

    ## secure=false

    # The cookie containing the users' session ID and csrf cookie will use the HTTP only flag.

    ## http_only=true

    # Use session-length cookies. Logs out the user when she closes the browser window.

    ## expire_at_browser_close=false

  # Configuration options for connecting to an external SMTP server

  # ------------------------------------------------------------------------

  [[smtp]]

    # The SMTP server information for email notification delivery

    host=localhost

    port=25

    user=

    password=

    # Whether to use a TLS (secure) connection when talking to the SMTP server

    tls=no

    # Default email address to use for various automated notification from Hue

    ## default_from_email=hue@localhost

  # Configuration options for Kerberos integration for secured Hadoop clusters

  # ------------------------------------------------------------------------

  [[kerberos]]

    # Path to Hue's Kerberos keytab file

    ## hue_keytab=

    # Kerberos principal name for Hue

    ## hue_principal=hue/hostname.foo.com

    # Path to kinit

    ## kinit_path=/path/to/kinit

  # Configuration options for using OAuthBackend (Core) login

  # ------------------------------------------------------------------------

  [[oauth]]

    # The Consumer key of the application

    ## consumer_key=XXXXXXXXXXXXXXXXXXXXX

    # The Consumer secret of the application

    ## consumer_secret=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

    # The Request token URL

    ## request_token_url=https://api.twitter.com/oauth/request_token

    # The Access token URL

    ## access_token_url=https://api.twitter.com/oauth/access_token

    # The Authorize URL

    ## authenticate_url=https://api.twitter.com/oauth/authorize

  # Configuration options for Metrics

  # ------------------------------------------------------------------------

  [[metrics]]

   # Enable the metrics URL "/desktop/metrics"

   ## enable_web_metrics=True

   # If specified, Hue will write metrics to this file.

   ## location=/var/log/hue/metrics.json

   # Time in milliseconds on how frequently to collect metrics

   ## collection_interval=30000

###########################################################################

# Settings to configure the snippets available in the Notebook

###########################################################################

[notebook]

  ## Show the notebook menu or not

  # show_notebooks=true

  ## Flag to enable the selection of queries from files, saved queries into the editor or as snippet.

  # enable_external_statements=true

  ## Flag to enable the bulk submission of queries as a background task through Oozie.

  # enable_batch_execute=true

  ## Flag to enable the SQL query builder of the table assist.

  # enable_query_builder=true

  ## Flag to enable the creation of a coordinator for the current SQL query.

  # enable_query_scheduling=false

  ## Main flag to override the automatic starting of the DBProxy server.

  # enable_dbproxy_server=true

  ## Classpath to be appended to the default DBProxy server classpath.

  # dbproxy_extra_classpath=

  ## Comma separated list of interpreters that should be shown on the wheel. This list takes precedence over the

  ## order in which the interpreter entries appear. Only the first 5 interpreters will appear on the wheel.

  # interpreters_shown_on_wheel=

  # One entry for each type of snippet.

  [[interpreters]]

    # Define the name and how to connect and execute the language.

    [[[hive]]]

      # The name of the snippet.

      name=Hive

      # The backend connection to use to communicate with the server.

      interface=hiveserver2

    [[[impala]]]

      name=Impala

      interface=hiveserver2

    [[[sparksql]]]

      name=SparkSql

      interface=hiveserver2

    [[[spark]]]

      name=Scala

      interface=livy

    [[[pyspark]]]

      name=PySpark

      interface=livy

    [[[r]]]

      name=R

      interface=livy

    [[[jar]]]

      name=Spark Submit Jar

      interface=livy-batch

    [[[py]]]

      name=Spark Submit Python

      interface=livy-batch

    [[[text]]]

      name=Text

      interface=text

    [[[markdown]]]

      name=Markdown

      interface=text

    [[[mysql]]]

      name = MySQL

      interface=rdbms

    [[[sqlite]]]

      name = SQLite

      interface=rdbms

    [[[postgresql]]]

      name = PostgreSQL

      interface=rdbms

    [[[oracle]]]

      name = Oracle

      interface=rdbms

    [[[solr]]]

      name = Solr SQL

      interface=solr

      ## Name of the collection handler

      # options='{"collection": "default"}'

    [[[pig]]]

      name=Pig

      interface=oozie

    [[[java]]]

      name=Java

      interface=oozie

    [[[spark2]]]

      name=Spark

      interface=oozie

    [[[mapreduce]]]

      name=MapReduce

      interface=oozie

    [[[sqoop1]]]

      name=Sqoop1

      interface=oozie

    [[[distcp]]]

      name=Distcp

      interface=oozie

    [[[shell]]]

      name=Shell

      interface=oozie

    #[[[mysql]]]

    #  name=MySql JDBC

    #  interface=jdbc

    #   ## Specific options for connecting to the server.

    #   ## The JDBC connectors, e.g. mysql.jar, need to be in the CLASSPATH environment variable.

    #   ## If 'user' and 'password' are omitted, they will be prompted in the UI.

    #   options='{"url": "jdbc:mysql://localhost:3306/hue", "driver": "com.mysql.jdbc.Driver", "user": "root", "password": "root"}'

###########################################################################

# Settings to configure your Analytics Dashboards

###########################################################################

[dashboard]

  ## Activate the Dashboard link in the menu.

  # is_enabled=true

  ## Activate the SQL Dashboard (beta).

  # has_sql_enabled=false

  [[engines]]

    #  [[[solr]]]

    ##  Requires Solr 6+

    #  analytics=false

    #  nesting=false

    #  [[[sql]]]

    #  analytics=true

    #  nesting=false

###########################################################################

# Settings to configure your Hadoop cluster.

###########################################################################

[hadoop]

  # Configuration for HDFS NameNode

  # ------------------------------------------------------------------------

  [[hdfs_clusters]]

    # HA support by using HttpFs

    [[[default]]]

      # Enter the filesystem uri

      fs_defaultfs=hdfs://localhost:8020

      # NameNode logical name.

      ## logical_name=

      # Use WebHdfs/HttpFs as the communication mechanism.

      # Domain should be the NameNode or HttpFs host.

      # Default port is 14000 for HttpFs.

      webhdfs_url=http://localhost:50070/webhdfs/v1

      # Change this if your HDFS cluster is Kerberos-secured

      ## security_enabled=false

      # In secure mode (HTTPS), if SSL certificates from YARN Rest APIs

      # have to be verified against certificate authority

      ## ssl_cert_ca_verify=True

      # Directory of the Hadoop configuration

      hadoop_conf_dir='/etc/hadoop/conf'

  # Configuration for YARN (MR2)

  # ------------------------------------------------------------------------

  [[yarn_clusters]]

    [[[default]]]

      # Enter the host on which you are running the ResourceManager

      resourcemanager_host=localhost

      # The port where the ResourceManager IPC listens on

      resourcemanager_port=8032

      # Whether to submit jobs to this cluster

      submit_to=True

      # Resource Manager logical name (required for HA)

      ## logical_name=

      # Change this if your YARN cluster is Kerberos-secured

      ## security_enabled=false

      # URL of the ResourceManager API

      resourcemanager_api_url=http://localhost:8088

      # URL of the ProxyServer API

      proxy_api_url=http://localhost:8088

      # URL of the HistoryServer API

      history_server_api_url=http://localhost:19888

      # URL of the Spark History Server

      spark_history_server_url=http://localhost:18088

      # In secure mode (HTTPS), if SSL certificates from YARN Rest APIs

      # have to be verified against certificate authority

      ## ssl_cert_ca_verify=True

    # HA support by specifying multiple clusters.

    # Redefine different properties there.

    # e.g.

    # [[[ha]]]

      # Resource Manager logical name (required for HA)

      ## logical_name=my-rm-name

      # Un-comment to enable

      ## submit_to=True

      # URL of the ResourceManager API

      ## resourcemanager_api_url=http://localhost:8088

      # ...

  # Configuration for MapReduce (MR1)

  # ------------------------------------------------------------------------

  [[mapred_clusters]]

    [[[default]]]

      # Enter the host on which you are running the Hadoop JobTracker

      jobtracker_host=localhost

      # The port where the JobTracker IPC listens on

      ## jobtracker_port=8021

      # JobTracker logical name for HA

      ## logical_name=

      # Thrift plug-in port for the JobTracker

      ## thrift_port=9290

      # Whether to submit jobs to this cluster

      submit_to=False

      # Change this if your MapReduce cluster is Kerberos-secured

      ## security_enabled=false

    # HA support by specifying multiple clusters

    # e.g.

    # [[[ha]]]

      # Enter the logical name of the JobTrackers

      ## logical_name=my-jt-name

###########################################################################

# Settings to configure Beeswax with Hive

###########################################################################

[beeswax]

  # Host where HiveServer2 is running.

  # If Kerberos security is enabled, use fully-qualified domain name (FQDN).

  hive_server_host=localhost

  # Port where HiveServer2 Thrift server runs on.

  hive_server_port=10000

  # Hive configuration directory, where hive-site.xml is located

  hive_conf_dir=/etc/hive/conf

  # Timeout in seconds for thrift calls to Hive service

  ## server_conn_timeout=120

  # Choose whether to use the old GetLog() thrift call from before Hive 0.14 to retrieve the logs.

  # If false, use the FetchResults() thrift call from Hive 1.0 or more instead.

  ## use_get_log_api=false

  # Limit the number of partitions that can be listed.

  ## list_partitions_limit=10000

  # The maximum number of partitions that will be included in the SELECT * LIMIT sample query for partitioned tables.

  ## query_partitions_limit=10

  # A limit to the number of rows that can be downloaded from a query before it is truncated.

  # A value of -1 means there will be no limit.

  ## download_row_limit=100000

  # Hue will try to close the Hive query when the user leaves the editor page.

  # This will free all the query resources in HiveServer2, but also make its results inaccessible.

  ## close_queries=false

  # Hue will use at most this many HiveServer2 sessions per user at a time.

  ## max_number_of_sessions=1

  # Thrift version to use when communicating with HiveServer2.

  # New column format is from version 7.

  ## thrift_version=7

  # A comma-separated list of white-listed Hive configuration properties that users are authorized to set.

  ## config_whitelist=hive.map.aggr,hive.exec.compress.output,hive.exec.parallel,hive.execution.engine,mapreduce.job.queuename

  # Override the default desktop username and password of the hue user used for authentications with other services.

  # e.g. Used for LDAP/PAM pass-through authentication.

  ## auth_username=hue

  ## auth_password=

  [[ssl]]

    # Path to Certificate Authority certificates.

    ## cacerts=/etc/hue/cacerts.pem

    # Choose whether Hue should validate certificates received from the server.

    ## validate=true

###########################################################################

# Settings to configure Metastore

###########################################################################

[metastore]

  # Flag to turn on the new version of the create table wizard.

  ## enable_new_create_table=true

###########################################################################

# Settings to configure Impala

###########################################################################

[impala]

  # Host of the Impala Server (one of the Impalad)

  ## server_host=localhost

  # Port of the Impala Server

  ## server_port=21050

  # Kerberos principal

  ## impala_principal=impala/hostname.foo.com

  # Turn on/off impersonation mechanism when talking to Impala

  ## impersonation_enabled=False

  # Number of initial rows of a result set to ask Impala to cache in order

  # to support re-fetching them for downloading them.

  # Set to 0 for disabling the option and backward compatibility.

  ## querycache_rows=50000

  # Timeout in seconds for thrift calls

  ## server_conn_timeout=120

  # Hue will try to close the Impala query when the user leaves the editor page.

  # This will free all the query resources in Impala, but also make its results inaccessible.

  ## close_queries=true

  # If > 0, the query will be timed out (i.e. cancelled) if Impala does not do any work

  # (compute or send back results) for that query within QUERY_TIMEOUT_S seconds.

  ## query_timeout_s=600

  # If > 0, the session will be timed out (i.e. cancelled) if Impala does not do any work

  # (compute or send back results) for that session within QUERY_TIMEOUT_S seconds (default 1 hour).

  ## session_timeout_s=3600

  # Override the desktop default username and password of the hue user used for authentications with other services.

  # e.g. Used for LDAP/PAM pass-through authentication.

  ## auth_username=hue

  ## auth_password=

  # A comma-separated list of white-listed Impala configuration properties that users are authorized to set.

  # config_whitelist=debug_action,explain_level,mem_limit,optimize_partition_key_scans,query_timeout_s,request_pool

  # Path to the impala configuration dir which has impalad_flags file

  ## impala_conf_dir=${HUE_CONF_DIR}/impala-conf

  [[ssl]]

    # SSL communication enabled for this server.

    ## enabled=false

    # Path to Certificate Authority certificates.

    ## cacerts=/etc/hue/cacerts.pem

    # Choose whether Hue should validate certificates received from the server.

    ## validate=true

###########################################################################

# Settings to configure the Spark application.

###########################################################################

[spark]

  # Host address of the Livy Server.

  livy_server_host=localhost

  # Port of the Livy Server.

  livy_server_port=8998

  # Configure Livy to start in local 'process' mode, or 'yarn' workers.

  livy_server_session_kind=yarn

  # Whether Livy requires client to perform Kerberos authentication.

  security_enabled=false

  # Host of the Sql Server

  sql_server_host=localhost

  # Port of the Sql Server

  sql_server_port=10015

###########################################################################

# Settings to configure the Oozie app

###########################################################################

[oozie]

  # Location on local FS where the examples are stored.

  ## local_data_dir=..../examples

  # Location on local FS where the data for the examples is stored.

  ## sample_data_dir=...thirdparty/sample_data

  # Location on HDFS where the oozie examples and workflows are stored.

  # Parameters are $TIME and $USER, e.g. /user/$USER/hue/workspaces/workflow-$TIME

  ## remote_data_dir=/user/hue/oozie/workspaces

  # Maximum of Oozie workflows or coodinators to retrieve in one API call.

  ## oozie_jobs_count=100

  # Use Cron format for defining the frequency of a Coordinator instead of the old frequency number/unit.

  ## enable_cron_scheduling=true

  # Flag to enable the saved Editor queries to be dragged and dropped into a workflow.

  ## enable_document_action=true

  # Flag to enable Oozie backend filtering instead of doing it at the page level in Javascript. Requires Oozie 4.3+.

  ## enable_oozie_backend_filtering=true

  # Flag to enable the Impala action.

  ## enable_impala_action=false

###########################################################################

# Settings to configure the Filebrowser app

###########################################################################

[filebrowser]

  # Location on local filesystem where the uploaded archives are temporary stored.

  ## archive_upload_tempdir=/tmp

  # Show Download Button for HDFS file browser.

  ## show_download_button=false

  # Show Upload Button for HDFS file browser.

  ## show_upload_button=false

  # Flag to enable the extraction of a uploaded archive in HDFS.

  ## enable_extract_uploaded_archive=false

###########################################################################

# Settings to configure Pig

###########################################################################

[pig]

  # Location of piggybank.jar on local filesystem.

  ## local_sample_dir=/usr/share/hue/apps/pig/examples

  # Location piggybank.jar will be copied to in HDFS.

  ## remote_data_dir=/user/hue/pig/examples

###########################################################################

# Settings to configure Sqoop2

###########################################################################

[sqoop]

  # For autocompletion, fill out the librdbms section.

  # Sqoop server URL

  server_url=http://localhost:12000/sqoop

  # Path to configuration directory

  sqoop_conf_dir=/etc/sqoop2/conf

###########################################################################

# Settings to configure Proxy

###########################################################################

[proxy]

  # Comma-separated list of regular expressions,

  # which match 'host:port' of requested proxy target.

  whitelist=(localhost|127\.0\.0\.1):(50030|50070|50060|50075)

  # Comma-separated list of regular expressions,

  # which match any prefix of 'host:port/path' of requested proxy target.

  # This does not support matching GET parameters.

  ## blacklist=

###########################################################################

# Settings to configure HBase Browser

###########################################################################

[hbase]

  # Comma-separated list of HBase Thrift servers for clusters in the format of '(name|host:port)'.

  # Use full hostname with security.

  # If using Kerberos we assume GSSAPI SASL, not PLAIN.

  hbase_clusters=(Cluster|localhost:9090)

  # HBase configuration directory, where hbase-site.xml is located.

  hbase_conf_dir=/etc/hbase/conf

  # Hard limit of rows or columns per row fetched before truncating.

  ## truncate_limit = 500

  # 'buffered' is the default of the HBase Thrift Server and supports security.

  # 'framed' can be used to chunk up responses,

  # which is useful when used in conjunction with the nonblocking server in Thrift.

  ## thrift_transport=buffered

###########################################################################

# Settings to configure Solr Search

###########################################################################

[search]

  # URL of the Solr Server

  ## solr_url=http://localhost:8983/solr/

  # Requires FQDN in solr_url if enabled

  ## security_enabled=false

  ## Query sent when no term is entered

  ## empty_query=*:*

###########################################################################

# Settings to configure Solr API lib

###########################################################################

[libsolr]

  # Choose whether Hue should validate certificates received from the server.

  ## ssl_cert_ca_verify=true

  # Default path to Solr in ZooKeeper.

  ## solr_zk_path=/solr

###########################################################################

# Settings to configure Solr Indexer

###########################################################################

[indexer]

  # Location of the solrctl binary.

  ## solrctl_path=/usr/bin/solrctl

  # Flag to turn on the morphline based Solr indexer.

  ## enable_new_indexer=false

  # Oozie workspace template for indexing.

  ## config_indexer_libs_path=/tmp/smart_indexer_lib

  # Flag to turn on the new metadata importer.

  ## enable_new_importer=false

###########################################################################

# Settings to configure Job Designer

###########################################################################

[jobsub]

  # Location on local FS where examples and template are stored.

  ## local_data_dir=..../data

  # Location on local FS where sample data is stored

  ## sample_data_dir=...thirdparty/sample_data

###########################################################################

# Settings to configure Job Browser.

###########################################################################

[jobbrowser]

  # Share submitted jobs information with all users. If set to false,

  # submitted jobs are visible only to the owner and administrators.

  ## share_jobs=true

  # Whether to disalbe the job kill button for all users in the jobbrowser

  ## disable_killing_jobs=false

  # Offset in bytes where a negative offset will fetch the last N bytes for the given log file (default 1MB).

  ## log_offset=-1000000

  # Maximum number of jobs to fetch and display when pagination is not supported for the type.

  ## max_job_fetch=500

  # Show the version 2 of app which unifies all the past browsers into one.

  ## enable_v2=false

###########################################################################

# Settings to configure Sentry / Security App.

###########################################################################

[security]

  # Use Sentry API V1 for Hive.

  ## hive_v1=true

  # Use Sentry API V2 for Hive.

  ## hive_v2=false

  # Use Sentry API V2 for Solr.

  ## solr_v2=true

###########################################################################

# Settings to configure the Zookeeper application.

###########################################################################

[zookeeper]

  [[clusters]]

    [[[default]]]

      # Zookeeper ensemble. Comma separated list of Host/Port.

      # e.g. localhost:2181,localhost:2182,localhost:2183

      host_ports=localhost:2181

      # The URL of the REST contrib service (required for znode browsing).

      rest_url=http://localhost:9998

      # Name of Kerberos principal when using security.

      principal_name=zookeeper

###########################################################################

# Settings for the User Admin application

###########################################################################

[useradmin]

  # Default home directory permissions

  ## home_dir_permissions=0755

  # The name of the default user group that users will be a member of

  ## default_user_group=default

  [[password_policy]]

    # Set password policy to all users. The default policy requires password to be at least 8 characters long,

    # and contain both uppercase and lowercase letters, numbers, and special characters.

    ## is_enabled=false

    ## pwd_regex="^(?=.*?[A-Z])(?=(.*[a-z]){1,})(?=(.*[\d]){1,})(?=(.*[\W_]){1,}).{8,}$"

    ## pwd_hint="The password must be at least 8 characters long, and must contain both uppercase and lowercase letters, at least one number, and at least one special character."

    ## pwd_error_message="The password must be at least 8 characters long, and must contain both uppercase and lowercase letters, at least one number, and at least one special character."

###########################################################################

# Settings to configure liboozie

###########################################################################

[liboozie]

  # The URL where the Oozie service runs on. This is required in order for

  # users to submit jobs. Empty value disables the config check.

  ## oozie_url=http://localhost:11000/oozie

  # Requires FQDN in oozie_url if enabled

  ## security_enabled=false

  # Location on HDFS where the workflows/coordinator are deployed when submitted.

  ## remote_deployement_dir=/user/hue/oozie/deployments

###########################################################################

# Settings for the AWS lib

###########################################################################

[aws]

  [[aws_accounts]]

    # Default AWS account

    ## [[[default]]]

      # AWS credentials

      ## access_key_id=

      ## secret_access_key=

      ## security_token=

      # Execute this script to produce the AWS access key ID.

      ## access_key_id_script=/path/access_key_id.sh

      # Execute this script to produce the AWS secret access key.

      ## secret_access_key_script=/path/secret_access_key.sh

      # Allow to use either environment variables or

      # EC2 InstanceProfile to retrieve AWS credentials.

      ## allow_environment_credentials=yes

      # AWS region to use, if no region is specified, will attempt to connect to standard s3.amazonaws.com endpoint

      ## region=us-east-1

      # Endpoint overrides

      ## host=

      # Proxy address and port

      ## proxy_address=

      ## proxy_port=8080

      ## proxy_user=

      ## proxy_pass=

      # Secure connections are the default, but this can be explicitly overridden:

      ## is_secure=true

      # The default calling format uses https://.s3.amazonaws.com but

      # this may not make sense if DNS is not configured in this way for custom endpoints.

      # e.g. Use boto.s3.connection.OrdinaryCallingFormat for https://s3.amazonaws.com/

      ## calling_format=boto.s3.connection.OrdinaryCallingFormat

###########################################################################

# Settings for the Sentry lib

###########################################################################

[libsentry]

  # Hostname or IP of server.

  ## hostname=localhost

  # Port the sentry service is running on.

  ## port=8038

  # Sentry configuration directory, where sentry-site.xml is located.

  ## sentry_conf_dir=/etc/sentry/conf

  # Number of seconds when the privilege list of a user is cached.

  ## privilege_checker_caching=30

###########################################################################

# Settings to configure the ZooKeeper Lib

###########################################################################

[libzookeeper]

  # ZooKeeper ensemble. Comma separated list of Host/Port.

  # e.g. localhost:2181,localhost:2182,localhost:2183

  ## ensemble=localhost:2181

  # Name of Kerberos principal when using security.

  ## principal_name=zookeeper

###########################################################################

# Settings for the RDBMS application

###########################################################################

[librdbms]

  # The RDBMS app can have any number of databases configured in the databases

  # section. A database is known by its section name

  # (IE sqlite, mysql, psql, and oracle in the list below).

  [[databases]]

    # sqlite configuration.

    ## [[[sqlite]]]

      # Name to show in the UI.

      ## nice_name=SQLite

      # For SQLite, name defines the path to the database.

      ## name=/tmp/sqlite.db

      # Database backend to use.

      ## engine=sqlite

      # Database options to send to the server when connecting.

      # https://docs.djangoproject.com/en/1.4/ref/databases/

      ## options={}

    # mysql, oracle, or postgresql configuration.

    ## [[[mysql]]]

      # Name to show in the UI.

      ## nice_name="My SQL DB"

      # For MySQL and PostgreSQL, name is the name of the database.

      # For Oracle, Name is instance of the Oracle server. For express edition

      # this is 'xe' by default.

      ## name=mysqldb

      # Database backend to use. This can be:

      # 1. mysql

      # 2. postgresql

      # 3. oracle

      ## engine=mysql

      # IP or hostname of the database to connect to.

      ## host=localhost

      # Port the database server is listening to. Defaults are:

      # 1. MySQL: 3306

      # 2. PostgreSQL: 5432

      # 3. Oracle Express Edition: 1521

      ## port=3306

      # Username to authenticate with when connecting to the database.

      ## user=example

      # Password matching the username to authenticate with when

      # connecting to the database.

      ## password=example

      # Database options to send to the server when connecting.

      # https://docs.djangoproject.com/en/1.4/ref/databases/

      ## options={}

###########################################################################

# Settings to configure SAML

###########################################################################

[libsaml]

  # Xmlsec1 binary path. This program should be executable by the user running Hue.

  ## xmlsec_binary=/usr/local/bin/xmlsec1

  # Entity ID for Hue acting as service provider.

  # Can also accept a pattern where '' will be replaced with server URL base.

  ## entity_id="/saml2/metadata/"

  # Create users from SSO on login.

  ## create_users_on_login=true

  # Required attributes to ask for from IdP.

  # This requires a comma separated list.

  ## required_attributes=uid

  # Optional attributes to ask for from IdP.

  # This requires a comma separated list.

  ## optional_attributes=

  # IdP metadata in the form of a file. This is generally an XML file containing metadata that the Identity Provider generates.

  ## metadata_file=

  # Private key to encrypt metadata with.

  ## key_file=

  # Signed certificate to send along with encrypted metadata.

  ## cert_file=

  # Path to a file containing the password private key.

  ## key_file_password=/path/key

  # Execute this script to produce the private key password. This will be used when 'key_file_password' is not set.

  ## key_file_password_script=/path/pwd.sh

  # A mapping from attributes in the response from the IdP to django user attributes.

  ## user_attribute_mapping={'uid': ('username', )}

  # Have Hue initiated authn requests be signed and provide a certificate.

  ## authn_requests_signed=false

  # Have Hue initiated logout requests be signed and provide a certificate.

  ## logout_requests_signed=false

  # Username can be sourced from 'attributes' or 'nameid'.

  ## username_source=attributes

  # Performs the logout or not.

  ## logout_enabled=true

###########################################################################

# Settings to configure OpenID

###########################################################################

[libopenid]

  # (Required) OpenId SSO endpoint url.

  ## server_endpoint_url=https://www.google.com/accounts/o8/id

  # OpenId 1.1 identity url prefix to be used instead of SSO endpoint url

  # This is only supported if you are using an OpenId 1.1 endpoint

  ## identity_url_prefix=https://app.onelogin.com/openid/your_company.com/

  # Create users from OPENID on login.

  ## create_users_on_login=true

  # Use email for username

  ## use_email_for_username=true

###########################################################################

# Settings to configure OAuth

###########################################################################

[liboauth]

  # NOTE:

  # To work, each of the active (i.e. uncommented) service must have

  # applications created on the social network.

  # Then the "consumer key" and "consumer secret" must be provided here.

  #

  # The addresses where to do so are:

  # Twitter:  https://dev.twitter.com/apps

  # Google+ : https://cloud.google.com/

  # Facebook: https://developers.facebook.com/apps

  # Linkedin: https://www.linkedin.com/secure/developer

  #

  # Additionnaly, the following must be set in the application settings:

  # Twitter:  Callback URL (aka Redirect URL) must be set to http://YOUR_HUE_IP_OR_DOMAIN_NAME/oauth/social_login/oauth_authenticated

  # Google+ : CONSENT SCREEN must have email address

  # Facebook: Sandbox Mode must be DISABLED

  # Linkedin: "In OAuth User Agreement", r_emailaddress is REQUIRED

  # The Consumer key of the application

  ## consumer_key_twitter=

  ## consumer_key_google=

  ## consumer_key_facebook=

  ## consumer_key_linkedin=

  # The Consumer secret of the application

  ## consumer_secret_twitter=

  ## consumer_secret_google=

  ## consumer_secret_facebook=

  ## consumer_secret_linkedin=

  # The Request token URL

  ## request_token_url_twitter=https://api.twitter.com/oauth/request_token

  ## request_token_url_google=https://accounts.google.com/o/oauth2/auth

  ## request_token_url_linkedin=https://www.linkedin.com/uas/oauth2/authorization

  ## request_token_url_facebook=https://graph.facebook.com/oauth/authorize

  # The Access token URL

  ## access_token_url_twitter=https://api.twitter.com/oauth/access_token

  ## access_token_url_google=https://accounts.google.com/o/oauth2/token

  ## access_token_url_facebook=https://graph.facebook.com/oauth/access_token

  ## access_token_url_linkedin=https://api.linkedin.com/uas/oauth2/accessToken

  # The Authenticate URL

  ## authenticate_url_twitter=https://api.twitter.com/oauth/authorize

  ## authenticate_url_google=https://www.googleapis.com/oauth2/v1/userinfo?access_token=

  ## authenticate_url_facebook=https://graph.facebook.com/me?access_token=

  ## authenticate_url_linkedin=https://api.linkedin.com/v1/people/~:(email-address)?format=json&oauth2_access_token=

  # Username Map. Json Hash format.

  # Replaces username parts in order to simplify usernames obtained

  # Example: {"@sub1.domain.com":"_S1", "@sub2.domain.com":"_S2"}

  # converts '[email protected]' to 'email_S1'

  ## username_map={}

  # Whitelisted domains (only applies to Google OAuth). CSV format.

  ## whitelisted_domains_google=

###########################################################################

# Settings to configure Metadata

###########################################################################

[metadata]

  [[optimizer]]

    # Hostname to Optimizer API or compatible service.

    ## hostname=navoptapi.us-west-1.optimizer.altus.cloudera.com

    # The name of the key of the service.

    ## auth_key_id=e0819f3a-1e6f-4904-be69-5b704bacd1245

    # The private part of the key associated with the auth_key.

    ## auth_key_secret='-----BEGIN PRIVATE KEY....'

    # Execute this script to produce the auth_key secret. This will be used when `auth_key_secret` is not set.

    ## auth_key_secret_script=/path/to/script.sh

    # The name of the workload where queries are uploaded and optimizations are calculated from. Automatically guessed from auth_key and cluster_id if not specified.

    ## tenant_id=

    # Perform Sentry privilege filtering.

    # Default to true automatically if the cluster is secure.

    ## apply_sentry_permissions=False

    # Cache timeout in milliseconds for the Optimizer metadata used in assist, autocomplete, etc.

    # Defaults to 1 hour, set to 0 to disable caching.

    ## cacheable_ttl=3600000

    # Automatically upload queries after their execution in order to improve recommendations.

    ## auto_upload_queries=true

    # Allow admins to upload the last N executed queries in the quick start wizard. Use 0 to disable.

    ## query_history_upload_limit=10000

  [[navigator]]

    # Navigator API URL (without version suffix).

    ## api_url=http://localhost:7187/api

    # Which authentication to use: CM or external via LDAP or SAML.

    ## navmetadataserver_auth_type=CMDB

    # Username of the CM user used for authentication.

    ## navmetadataserver_cmdb_user=hue

    # CM password of the user used for authentication.

    ## navmetadataserver_cmdb_password=

    # Execute this script to produce the CM password. This will be used when the plain password is not set.

    # navmetadataserver_cmdb_password_script=

    # Username of the LDAP user used for authentication.

    ## navmetadataserver_ldap_user=hue

    # LDAP password of the user used for authentication.

    ## navmetadataserver_ldap_ppassword=

    # Execute this script to produce the LDAP password. This will be used when the plain password is not set.

    ## navmetadataserver_ldap_password_script=

    # Username of the SAML user used for authentication.

    ## navmetadataserver_saml_user=hue

    ## SAML password of the user used for authentication.

    # navmetadataserver_saml_password=

    # Execute this script to produce the SAML password. This will be used when the plain password  is not set.

    ## navmetadataserver_saml_password_script=

    # Perform Sentry privilege filtering.

    # Default to true automatically if the cluster is secure.

    ## apply_sentry_permissions=False

    # Max number of items to fetch in one call in object search.

    ## fetch_size_search=450

    # Max number of items to fetch in one call in object search autocomplete.

    ## fetch_size_search_interactive=450

    # If metadata search is enabled, also show the search box in the left assist.

    ## enable_file_search=false

  

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