Hadoop配置文件与HBase配置文件
本Hadoop与HBase集群有1台NameNode, 7台DataNode
1. /etc/hostname文件
NameNode:
node1
DataNode 1:
node2
DataNode 2:
node3.......
DataNode 7:
node8
2. /etc/hosts文件
NameNode:
127.0.0.1 localhost #127.0.1.1 node1 #-------edit by HY(2014-05-04)-------- #127.0.1.1 node1 125.216.241.113 node1 125.216.241.112 node2 125.216.241.96 node3 125.216.241.111 node4 125.216.241.114 node5 125.216.241.115 node6 125.216.241.116 node7 125.216.241.117 node8 #-------end edit-------- # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters
DataNode 1:
127.0.0.1 localhost #127.0.0.1 node2 #127.0.1.1 node2 #--------eidt by HY(2014-05-04)-------- 125.216.241.113 node1 125.216.241.112 node2 125.216.241.96 node3 125.216.241.111 node4 125.216.241.114 node5 125.216.241.115 node6 125.216.241.116 node7 125.216.241.117 node8 #-------end eidt--------- # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters
其他的DataNode类似,只是注意要保持hostname与hosts中的域名要一样, 如果不一样, 在集群上跑任务时会出一些莫名奇妙的问题, 具体什么问题忘记了.
3. 在hadoop-env.sh中注释
# export JAVA_HOME=/usr/lib/j2sdk1.5-sun
增加
JAVA_HOME=/usr/lib/jvm/java-6-sun
4. core-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>fs.default.name</name>
<value>hdfs://node1:49000</value>
</property>
<property>
<name>hadoop.tmp.dir</name>
<value>/home/hadoop/newdata/hadoop-1.2.1/tmp</value>
</property>
<property>
<name>io.compression.codecs</name>
<value>org.apache.hadoop.io.compress.DefaultCodec,org.apache.hadoop.io.compress.GzipCodec,org.apache.hadoop.io.compress.BZip2Codec,com.hadoop.compression.lzo.LzoCodec,com.hadoop.compression.lzo.LzopCodec</value>
</property>
<property>
<name>io.compression.codec.lzo.class</name>
<value>com.hadoop.compression.lzo.LzoCodec</value>
</property>
<property>
<name>dfs.datanode.socket.write.timeout</name>
<value>3000000</value>
</property>
<property>
<name>dfs.socket.timeout</name>
<value>3000000</value>
</property>
</configuration>
5. hdfs-site.xml
<?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <!-- Put site-specific property overrides in this file. --> <configuration> <property> <name>dfs.name.dir</name> <value>/home/hadoop/newdata/hadoop-1.2.1/name1,/home/hadoop/newdata/hadoop-1.2.1/name2</value> <description>数据元信息存储位置</description> </property> <property> <name>dfs.data.dir</name> <value>/home/hadoop/newdata/hadoop-1.2.1/data1,/home/hadoop/newdata/hadoop-1.2.1/data2</value> <description>数据块存储位置</description> </property> <property> <name>dfs.replication</name> <!-- 这里备份两份 --> <value>2</value> </property> </configuration>
6. mapred-site.xml
<?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <!-- Put site-specific property overrides in this file. --> <configuration> <property> <name>mapred.job.tracker</name> <value>node1:49001</value> </property> <property> <name>mapred.local.dir</name> <value>/home/hadoop/newdata/hadoop-1.2.1/tmp</value> </property> <property> <name>mapred.compress.map.output</name> <value>true</value> <!-- map 和 reduce 输出中间文件默认开启压缩 --> </property> <property> <name>mapred.map.output.compression.codec</name> <value>com.hadoop.compression.lzo.LzoCodec</value> <!-- 使用 Lzo 库作为压缩算法 --> </property> </configuration>
7. masters
node1
8. slaves
node2 node3 node4 node5 node6 node7 node8
9. 在hbase-env.sh
增加
JAVA_HOME=/usr/lib/jvm/java-6-sun
并启用export HBASE_MANAGES_ZK=true //为true表示使用自带的Zookeeper, 如果需要独立的Zookeeper,则设置为false, 并且安装Zookeeper
10. hbase-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!--
/**
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-->
<configuration>
<property>
<name>hbase.rootdir</name>
<value>hdfs://node1:49000/hbase</value>
<description>The directory shared by RegionServers.</description>
</property>
<property>
<name>hbase.cluster.distributed</name>
<value>true</value>
<description>The mode the cluster will be in. Possible values are
false: standalone and pseudo-distributed setups with managed Zookeeper
true: fully-distributed with unmanaged Zookeeper Quorum (see hbase-env.sh)
</description>
</property>
<property>
<name>hbase.master</name>
<value>node1:60000</value>
<description>
</description>
</property>
<property>
<name>hbase.tmp.dir</name>
<value>/home/hadoop/newdata/hbase/tmp</value>
<description>
Temporary directory on the local filesystem.
Change this setting to point to a location more permanent than '/tmp',
the usual resolve for java.io.tmpdir,
as the '/tmp' directory is cleared on machine restart.
Default: ${java.io.tmpdir}/hbase-${user.name}
</description>
</property>
<property>
<name>hbase.zookeeper.quorum</name>
<value>node2,node3,node4,node5,node6,node7,node8</value>
<description>
要单数台,Comma separated list of servers in the ZooKeeper ensemble (This config.
should have been named hbase.zookeeper.ensemble).
For example, "host1.mydomain.com,host2.mydomain.com,host3.mydomain.com".
By default this is set to localhost for local and pseudo-distributed
modes of operation.
For a fully-distributed setup,
this should be set to a full list of ZooKeeper ensemble servers.
If HBASE_MANAGES_ZK is set in hbase-env.sh this is the list of servers
which hbase will start/stop ZooKeeper on as part of cluster start/stop.
Client-side, we will take this list of ensemble members and put it
together with the hbase.zookeeper.clientPort config.
and pass it into zookeeper constructor as the connectString parameter.
Default: localhost
</description>
</property>
<property>
<name>hbase.zookeeper.property.dataDir</name>
<value>/home/hadoop/newdata/zookeeper</value>
<description>
Property from ZooKeeper's config zoo.cfg.
The directory where the snapshot is stored.
Default: ${hbase.tmp.dir}/zookeeper
</description>
</property>
<property>
<name></name>
<value></value>
</property>
</configuration>
11. regionservers
node2 node3 node4 node5 node6 node7 node8
每台机器配置都要一样