Gearman分布式任务处理系统(五)版本介绍、安装方法和使用说明

Gearman版本

Gearman网址:gearman.org

0.14是标准C的版本,适合研究源码

0.33是C++版本,增加了gearadmin工具

1.1.11是最新版本


对于任务高度功能来说,各版本变化不大,主要的变化 是持久化功能与开发库的变化


安装Gearman

一、安装gearman服务

1.安装libevent
tar zxvf libevent-1.4.14b-stable.tar.gz
cd libevent-1.4.14b-stable
./configure & make & make install

2.安装gearmand
tar xzvf gearmand-0.14.tar.gz
cd gearmand-0.14

./configure --prefix=/usr/local/gearman & make & make install

安装中的错误及解决:

configure: error: could not find boost 错误解决
#yum install boost-devel*
configure: error: could not find gperf 错误解决
#yum install gperf*
configure: error: Unable to find libuuid 错误解决
#yum install libuuid-devel
上面错误的原因是编译器找不到 头文件

mkdir /usr/local/gearman/log
/usr/local/gearman/sbin/gearmand -l /usr/local/gearman/log/trace.log -vvvvv -p 4730 -u root -d

3.安装gearman php扩展

版本依赖关系:gearm C lib为0.14版本的,PHP为5.3.6,其它版本不能保证安装成功

tar xzvf gearman-0.7.0.tgz
cd gearman-0.7.0
/usr/local/php/bin/phpize
./configure --with-gearman=/usr/local/gearman --with-php-config=/usr/local/php/bin/php-config & make & make install
cp /usr/local/gearman/lib/lib* /usr/lib64(32位机为/usr/lib)
vi /usr/local/php/lib/php.ini,增加extension=gearman.so

cd examples
php ./reverse_worker.php
--Starting
--Waiting for job...

php ./reverse_client.php
--Starting
--Sending job
--Success: !olleH

gearman安装成功

4.编译C程序jfy_client.c,jfy_worker.c
/*
  gearman worker 测试程序
  gcc -I/usr/local/mysql/include -I/usr/local/gearman/include -c jfy_worker.c _pub.c
  gcc -o jfy_worker jfy_worker.o _pub.o -L/usr/local/mysql/lib -lmysqlclient -L/usr/local/gearman/lib -lgearman
  ./jfy_worker ./jfy_worker.tr
*/

/*
  gearman client 测试程序
  gcc -I/usr/local/gearman/include -c jfy_client.c
  gcc -o jfy_client jfy_client.o -L/usr/local/gearman/lib -lgearman
  ./jfy_client "this is a test"
*/

二、安装网页监控工具
1.安装Net_Gearman包
方法一:
http://download.pear.php.net/package/Net_Gearman-0.2.3.tgz
tar xzvf Net_Gearman-0.2.3.tgz
拷贝Net_Gearman-0.2.3下的Net目录到/usr/local/php/lib/php下

方法二:
/usr/local/php/bin/pear list
Installed packages, channel pear.php.net:
=========================================
Package          Version State
Archive_Tar      1.3.7   stable
Console_Getopt   1.3.0   stable
PEAR             1.9.2   stable
Structures_Graph 1.0.4   stable
XML_Util         1.2.1   stable

/usr/local/php/bin/pear install Net_Gearman-0.2.3

2.安装Gearman-Monitor
https://github.com/yugene/Gearman-Monitor/zipball/master
解压yugene-Gearman-Monitor-ed34347.zip
将所有内容放到网站能访问php的路径下
修改其下的_config.php文件
$cfgServers[$i]['address'] = 'localhost:4730';   //IP端口
$cfgServers[$i]['name'] = 'Gearman server 1';    //服务名(自定义)

通过网页访问:http://localhost:8084/phptest/Gearman-Monitor/index.php


Gearman使用

gearmand

这个是Job Server的执行主进程,提供了以下参数

General options:
  -b [ --backlog ] arg (=32)            Number of backlog connections for 
                                        listen.
  -d [ --daemon ]                       Daemon, detach and run in the 
                                        background.
  -f [ --file-descriptors ] arg         Number of file descriptors to allow for
                                        the process (total connections will be 
                                        slightly less). Default is max allowed 
                                        for user.
  -h [ --help ]                         Print this help menu.
  -j [ --job-retries ] arg (=0)         Number of attempts to run the job 
                                        before the job server removes it. This 
                                        is helpful to ensure a bad job does not
                                        crash all available workers. Default is
                                        no limit.
  -l [ --log-file ] arg (=/usr/local/var/log/gearmand.log)
                                        Log file to write errors and 
                                        information to. If the log-file 
                                        paramater is specified as 'stderr', 
                                        then output will go to stderr
  -L [ --listen ] arg                   Address the server should listen on. 
                                        Default is INADDR_ANY.
  -p [ --port ] arg (=4730)             Port the server should listen on.
  -P [ --pid-file ] arg (=/usr/local/var/gearmand.pid)
                                        File to write process ID out to.
  -r [ --protocol ] arg                 Load protocol module.
  -R [ --round-robin ]                  Assign work in round-robin order per 
                                        worker connection. The default is to 
                                        assign work in the order of functions 
                                        added by the worker.
  -q [ --queue-type ] arg               Persistent queue type to use.

  #队列持久化类型,libdrizzle=mysql,libmemcached=memcached,libsqlite3=sqlite,libpq=postgresql,libtokyocabinet=tokyocabinet


  --config-file arg (=/usr/local/etc/gearmand.conf)
                                        Can be specified with '@name', too
  --syslog                              Use syslog.
  -t [ --threads ] arg (=4)             Number of I/O threads to use. 
                                        Default=4.
  -u [ --user ] arg                     Switch to given user after startup.
  --verbose arg (=ERROR)                Set verbose level (FATAL, ALERT, 
                                        CRITICAL, ERROR, WARNING, NOTICE, INFO,
                                        DEBUG).
  -V [ --version ]                      Display the version of gearmand and 
                                        exit.
  -w [ --worker-wakeup ] arg (=0)       Number of workers to wakeup for each 
                                        job received. The default is to wakeup 
                                        all available workers.


-b, --backlog= 储备的监听连接数量
-d, --daemon 后台运行
-f, --file-descriptors= 文件描述符的数量
-h, --help 帮助
-j, --job-retries= 在job server移除不可用job之前运行的次数,防止不断运行导致其他可用worker崩溃。默认没有限制
-l, -log-file= 日志文件存放位置(默认记录最简单日志)
-L, --listen= 监听的IP,默认全部接受
-p, --port= 指定监听端口
-P, --pid-file= 指定进程ID写入位置
-r, --protocol= 加载协议模块
-q, --queue-type= 指定持久化队列
-t, --threads= 使用的I/O线程数量。默认为0
-u, --user= 启动后,切换到指定用户
-v, --verbose 增加一级详细程度
-V, --version 显示版本信息


HTTP:
  --http-port arg (=8080) Port to listen on.

#下面是针对--queue-type不同类型时的不同参数
libsqlite3:
  --libsqlite3-db arg                   Database file to use.
  --libsqlite3-table arg (=gearman_queue)
                                        Table to use.


gearmand还有一些其它参数选项,取决于编译时带的参数,如--with-libdrizzle和--with-libmemcached,可以将队列放到MySQL或Memcached中


一般正常使用如下:

/usr/local/sbin/gearmand -l /usr/local/gearman/log/trace.log --verbose INFO -p 4730 -d


gearman

这个模拟client和server的gearman程序

Client mode: gearman [options] [<data>]
Worker mode: gearman -w [options] [<command> [<args> ...]]

Common options to both client and worker modes.
        -f <function> - Function name to use for jobs (can give many)
        -h <host>     - Job server host
        -H            - Print this help menu
        -p <port>     - Job server port
        -t <timeout>  - Timeout in milliseconds
        -i <pidfile>  - Create a pidfile for the process

Client options:
        -b            - Run jobs in the background
        -I            - Run jobs as high priority
        -L            - Run jobs as low priority
        -n            - Run one job per line
        -N            - Same as -n, but strip off the newline
        -P            - Prefix all output lines with functions names
        -s            - Send job without reading from standard input
        -u <unique>   - Unique key to use for job

Worker options:
        -c <count>    - Number of jobs for worker to run before exiting
        -n            - Send data packet for each line
        -N            - Same as -n, but strip off the newline
        -w            - Run in worker mode

如:

#session1

gearman -w -f func1 &

#这实际上就启动了一个worker,并注册一个函数func1在Job Server上

#session2

gearman -I -f func1 test

#这时session1那边就会显示一个"test"


gearadmin

该工具是在0.33版本以后增加的功能

Options:
  --help                         Options related to the program.
  -h [ --host ] arg (=localhost) Connect to the host
  -p [ --port ] arg (=4730)      Port number or service to use for connection
  --server-version               Fetch the version number for the server.
  --server-verbose               Fetch the verbose setting for the server.
  --create-function arg          Create the function from the server.
  --drop-function arg            Drop the function from the server.
  --getpid                       Get Process ID for the server.
  --status                       Status for the server.
  --workers                      Workers for the server.
  --shutdown                     Shutdown server.


command line

用telnet直接连接gearmand,可以以命令行的方式查看Job Server状态

telnet localhost 4830
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.

workers

30 127.0.0.1 - : jfytest jfytest2    #显示连接的worker及注册的函数

status
jfytest          0       0       1       #某个函数的客户端队列请求
jfytest2        0       0       1       #Function Name,Jobs in queueJobs runningWorkers registered

maxqueue jfytest 10000        #设置某个函数最大队列数,如果只有两个参数则不限制
OK

version
OK 0.33

shutdown graceful                #graceful代表优雅关闭,否则强制关闭,不管队列状态
OK

verbose                                #当前log级别
OK INFO



你可能感兴趣的:(gearman)