hadoop集群日常运维命令
#1.namenode
hadoop namenode -format #格式化，慎用
su hdfs
hadoop-daemon.sh start namenode
hadoop-daemon.sh stop namenode
#2.journalnode
hadoop-daemon.sh start journalnode
hadoop-daemon.sh stop journalnode
#3.zkfc
hdfs zkfc -formatZK #格式化，慎用
hadoop-daemon.sh start zkfc
hadoop-daemon.sh stop zkfc
#4.datanode
hadoop-daemon.sh start datanode
hadoop-daemon.sh stop datanode
#5.nodemanager
su yarn
yarn-daemon.sh start nodemanager
yarn-daemon.sh stop nodemanager
#6.resourcemanager
yarn-daemon.sh start resourcemanager
yarn-daemon.sh stop resourcemanager
#7.hive
hive --service hiveserver2 #10000
hive --service metastore #9083
#8.zookeeper
bin/zkServer.sh start #2181
bin/zkServer.sh stop
bin/zkServer.sh status
bin/zkCli.sh #连接后台zk服务查看znode,可加-server参数
#HA Federation
<?xml version="1.0" encoding="UTF-8" standalone="no"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <configuration> <property> <name>dfs.nameservices</name> <value>aaa,bbb</value> </property> <!-- aaa --> <property> <name>dfs.ha.namenodes.aaa</name> <value>nn1,nn2</value> </property> <property> <name>dfs.namenode.rpc-address.aaa.nn1</name> <value>1.1.1.1:8020</value> </property> <property> <name>dfs.namenode.rpc-address.aaa.nn2</name> <value>1.1.1.2:8020</value> </property> <property> <name>dfs.namenode.http-address.aaa.nn1</name> <value>1.1.1.1:50070</value> </property> <property> <name>dfs.namenode.http-address.aaa.nn2</name> <value>1.1.1.2:50070</value> </property> <property> <name>dfs.client.failover.proxy.provider.aaa</name> <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value> </property> <property> <name>dfs.namenode.shared.edits.dir.aaa</name> <value>qjournal://1.1.1.1:8485;1.1.1.2:8485;1.1.1.3:8485/aaa</value> </property> <!-- bbb --> <property> <name>dfs.ha.namenodes.bbb</name> <value>nn1,nn2</value> </property> <property> <name>dfs.namenode.rpc-address.bbb.nn1</name> <value>1.1.1.4:8020</value> </property> <property> <name>dfs.namenode.rpc-address.bbb.nn2</name> <value>1.1.1.5:8020</value> </property> <property> <name>dfs.namenode.http-address.bbb.nn1</name> <value>1.1.1.4:50070</value> </property> <property> <name>dfs.namenode.http-address.bbb.nn2</name> <value>1.1.1.5:50070</value> </property> <property> <name>dfs.namenode.servicerpc-address.bbb.nn1</name> <value>1.1.1.4:8020</value> </property> <property> <name>dfs.namenode.servicerpc-address.bbb.nn2</name> <value>1.1.1.5:8020</value> </property> <property> <name>dfs.client.failover.proxy.provider.bbb</name> <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value> </property> <property> <name>dfs.namenode.shared.edits.dir.bbb</name> <value>qjournal://1.1.1.4:8485;1.1.1.5:8485;1.1.1.6:8485/bbb</value> </property> <property> <name>dfs.namenode.name.dir</name> <value>file:///data/dfs/nn/local</value> </property> <property> <name>dfs.datanode.data.dir</name> <value>/data1/dfs/local,/data2/dfs/local</value> </property> <property> <name>dfs.journalnode.edits.dir</name> <value>/data/dfs/jn</value> </property> <property> <name>dfs.qjournal.start-segment.timeout.ms</name> <value>60000</value> </property> <property> <name>dfs.qjournal.prepare-recovery.timeout.ms</name> <value>240000</value> </property> <property> <name>dfs.qjournal.accept-recovery.timeout.ms</name> <value>240000</value> </property> <property> <name>dfs.qjournal.finalize-segment.timeout.ms</name> <value>240000</value> </property> <property> <name>dfs.qjournal.select-input-streams.timeout.ms</name> <value>60000</value> </property> <property> <name>dfs.qjournal.get-journal-state.timeout.ms</name> <value>240000</value> </property> <property> <name>dfs.qjournal.new-epoch.timeout.ms</name> <value>240000</value> </property> <property> <name>dfs.qjournal.write-txns.timeout.ms</name> <value>60000</value> </property> <property> <name>dfs.namenode.acls.enabled</name> <value>true</value> <description>Number of replication for each chunk.</description> </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.ha.automatic-failover.enabled</name> <value>true</value> </property> <property> <name>dfs.permissions.superusergroup</name> <value>hadoop</value> </property> <property> <name>dfs.datanode.max.transfer.threads</name> <value>8192</value> </property> <property> <name>dfs.hosts.exclude</name> <value>/app/hadoop-conf/exclude.list</value> <description> List of nodes to decommission </description> </property> <property> <name>dfs.datanode.fsdataset.volume.choosing.policy</name> <value>org.apache.hadoop.hdfs.server.datanode.fsdataset.AvailableSpaceVolumeChoosingPolicy</value> </property> <property> <name>dfs.datanode.available-space-volume-choosing-policy.balanced-space-threshold</name> <value>10737418240</value> </property> <property> <name>dfs.datanode.available-space-volume-choosing-policy.balanced-space-preference-fraction</name> <value>0.75</value> </property> <property> <name>dfs.client.read.shortcircuit.streams.cache.size</name> <value>1000</value> </property> <property> <name>dfs.client.read.shortcircuit.streams.cache.expiry.ms</name> <value>10000</value> </property> <property> <name>dfs.client.read.shortcircuit</name> <value>true</value> </property> <property> <name>dfs.domain.socket.path</name> <value>/var/run/hadoop-hdfs/dn._PORT</value> </property> <property> <name>dfs.client.read.shortcircuit.skip.checksum</name> <value>false</value> </property> <property> <name>dfs.block.size</name> <value>536870912</value> </property> <property> <name>dfs.replication</name> <value>3</value> </property> <property> <name>dfs.namenode.handler.count</name> <value>300</value> </property> <property> <name>dfs.datanode.handler.count</name> <value>40</value> </property> <property> <name>dfs.webhdfs.enabled</name> <value>true</value> </property> <property> <name>dfs.namenode.datanode.registration.ip-hostname-check</name> <value>false</value> </property> <property> <name>dfs.datanode.du.reserved</name> <value>429496729600</value> </property> <!--hdfs balancer -policy datanode -threshold 5 -include -f host.txt--> <!--限制允许Datanode平衡群集的最大并发块移动数,默认为5 --> <property> <name>dfs.datanode.balance.max.concurrent.moves</name> <value>24</value> </property> <!--带宽100MB/s,默认为1MB/s--> <property> <name>dfs.datanode.balance.bandwidthPerSec</name> <value>104857600</value> </property> <!--mover线程数,默认为1000--> <property> <name>dfs.balancer.moverThreads</name> <value>1024</value> </property> <!--datanode传输的最大线程数(如果运行HBase的话建议为16384) --> <property> <name>dfs.datanode.max.transfer.threads</name> <value>4096/value> </property> <!--datanode传输的最大线程数(如果运行HBase的话建议为16384) --> <property> <name>dfs.datanode.max.transfer.threads</name> <value>4096/value> </property> <!--datanode最大移动数据大小, 默认为10737418240 (=10GB)--> <property> <name>dfs.balancer.max-size-to-move</name> <value>4096/value> </property> <!--$ hdfs dfsadmin -setBalancerBandwidth 1073741824 $ nohup hdfs balancer \ -Ddfs.datanode.balance.max.concurrent.moves = 10 \ -Ddfs.balancer.dispatcherThreads = 1024 \ -Ddfs.balance.bandwidthPerSec = 1073741824 --> </configuration>