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9) dfs.journalnode.edits.dir
配置JN存放edit的本地路径。
[hdfs-site.xml] <property> <name>dfs.journalnode.edits.dir</name> <value>/home/hdfs/hadoop/journal</value> </property>
完整配置文件:
core-site.xml
<?xml version="1.0" encoding="UTF-8"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <configuration> <property> <name>fs.defaultFS</name> <value>hdfs://mycluster/</value> </property> <property> <name>hadoop.tmp.dir</name> <value>/home/hdfs/hadoop</value> </property> </configuration>
hdfs-site.xml
<?xml version="1.0" encoding="UTF-8"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <configuration> <property> <name>dfs.replication</name> <value>3</value> </property> <property> <name>dfs.hosts</name> <value>/opt/soft/hadoop/etc/dfs.include.txt</value> </property> <property> <name>dfs.hosts.exclude</name> <value>/opt/soft/hadoop/etc/dfs.hosts.exclude.txt</value> </property> <property> <name>dfs.nameservices</name> <value>mycluster</value> </property> <property> <name>dfs.ha.namenodes.mycluster</name> <value>nn1,nn2</value> </property> <property> <name>dfs.namenode.rpc-address.mycluster.nn1</name> <value>s141:8020</value> </property> <property> <name>dfs.namenode.rpc-address.mycluster.nn2</name> <value>s146:8020</value> </property> <property> <name>dfs.namenode.http-address.mycluster.nn1</name> <value>s141:50070</value> </property> <property> <name>dfs.namenode.http-address.mycluster.nn2</name> <value>s146:50070</value> </property> <property> <name>dfs.namenode.shared.edits.dir</name> <value>qjournal://s142:8485;s143:8485;s144:8485/mycluster</value> </property> <property> <name>dfs.client.failover.proxy.provider.mycluster</name> <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value> </property> <property> <name>dfs.ha.fencing.methods</name> <value>sshfence</value> </property> <property> <name>dfs.ha.fencing.ssh.private-key-files</name> <value>/home/hdfs/.ssh/id_rsa</value> </property> <property> <name>dfs.journalnode.edits.dir</name> <value>/home/hdfs/hadoop/journal</value> </property> </configuration>
mapred-site.xml
<?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <configuration> <property> <name>mapreduce.framework.name</name> <value>yarn</value> </property> </configuration>