基于docker搭建hadoop集群环境中遇到的一些问题

hadoop的参数环境配置完毕后，运行hadoop出现下图的提示： [root@hadoop0 hadoop]# hadoop /usr/app/hadoop/bin/hadoop: line 20: which: command not found dirname: missing operand Try 'dirname --help' for more information. /usr/app/hadoop/bin/hadoop: line 27: /usr/app/hadoop/../libexec/hadoop-config.sh: No such file or directory Usage: hadoop [--config confdir] [COMMAND | CLASSNAME] CLASSNAME run the class named CLASSNAME or where COMMAND is one of: fs run a generic filesystem user client version print the version jar <jar> run a jar file note: please use "yarn jar" to launch YARN applications, not this command. checknative [-a|-h] check native hadoop and compression libraries availability distcp <srcurl> <desturl> copy file or directories recursively archive -archiveName NAME -p <parent path> <src>* <dest> create a hadoop archive classpath prints the class path needed to get the credential interact with credential providers Hadoop jar and the required libraries daemonlog get/set the log level for each daemon trace view and modify Hadoop tracing settings Most commands print help when invoked w/o parameters. 出现which命令无法识别，那么安装一下which就可以； [root@hadoop0 bin]# yum install which [root@hadoop0 bin]# hadoop Usage: hadoop [--config confdir] [COMMAND | CLASSNAME] CLASSNAME run the class named CLASSNAME or where COMMAND is one of: fs run a generic filesystem user client version print the version jar <jar> run a jar file note: please use "yarn jar" to launch YARN applications, not this command. checknative [-a|-h] check native hadoop and compression libraries availability distcp <srcurl> <desturl> copy file or directories recursively archive -archiveName NAME -p <parent path> <src>* <dest> create a hadoop archive classpath prints the class path needed to get the credential interact with credential providers Hadoop jar and the required libraries daemonlog get/set the log level for each daemon trace view and modify Hadoop tracing settings Most commands print help when invoked w/o parameters. 查看docker中容器的IP地址 [root@localhost Desktop]# docker inspect --format='{{.NetworkSettings.IPAddress}}' 07742212ab6d 172.17.0.2 格式化hadoop [root@hadoop0 bin]# hadoop namenode -format DEPRECATED: Use of this script to execute hdfs command is deprecated. Instead use the hdfs command for it. 16/08/16 03:53:02 INFO namenode.NameNode: STARTUP_MSG: /************************************************************ STARTUP_MSG: Starting NameNode STARTUP_MSG: host = hadoop0/172.17.0.2 STARTUP_MSG: args = [-format] STARTUP_MSG: version = 2.7.2 STARTUP_MSG: classpath = ........ STARTUP_MSG: build = https://git-wip-us.apache.org/repos/asf/hadoop.git -r b165c4fe8a74265c792ce23f546c64604acf0e41; compiled by 'jenkins' on 2016-01-26T00:08Z STARTUP_MSG: java = 1.8.0_102 ************************************************************/ 16/08/16 03:53:02 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT] 16/08/16 03:53:02 INFO namenode.NameNode: createNameNode [-format] Formatting using clusterid: CID-018771b1-b7d6-4c6a-ada1-5e16b5900e90 16/08/16 03:53:03 INFO namenode.FSNamesystem: No KeyProvider found. 16/08/16 03:53:03 INFO namenode.FSNamesystem: fsLock is fair:true 16/08/16 03:53:03 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit=1000 16/08/16 03:53:03 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true 16/08/16 03:53:03 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000 16/08/16 03:53:03 INFO blockmanagement.BlockManager: The block deletion will start around 2016 Aug 16 03:53:03 16/08/16 03:53:03 INFO util.GSet: Computing capacity for map BlocksMap 16/08/16 03:53:03 INFO util.GSet: VM type = 64-bit 16/08/16 03:53:03 INFO util.GSet: 2.0% max memory 889 MB = 17.8 MB 16/08/16 03:53:03 INFO util.GSet: capacity = 2^21 = 2097152 entries 16/08/16 03:53:03 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false 16/08/16 03:53:03 INFO blockmanagement.BlockManager: defaultReplication = 2 16/08/16 03:53:03 INFO blockmanagement.BlockManager: maxReplication = 512 16/08/16 03:53:03 INFO blockmanagement.BlockManager: minReplication = 1 16/08/16 03:53:03 INFO blockmanagement.BlockManager: maxReplicationStreams = 2 16/08/16 03:53:03 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000 16/08/16 03:53:03 INFO blockmanagement.BlockManager: encryptDataTransfer = false 16/08/16 03:53:03 INFO blockmanagement.BlockManager: maxNumBlocksToLog = 1000 16/08/16 03:53:03 INFO namenode.FSNamesystem: fsOwner = root (auth:SIMPLE) 16/08/16 03:53:03 INFO namenode.FSNamesystem: supergroup = supergroup 16/08/16 03:53:03 INFO namenode.FSNamesystem: isPermissionEnabled = true 16/08/16 03:53:03 INFO namenode.FSNamesystem: HA Enabled: false 16/08/16 03:53:03 INFO namenode.FSNamesystem: Append Enabled: true 16/08/16 03:53:03 INFO util.GSet: Computing capacity for map INodeMap 16/08/16 03:53:03 INFO util.GSet: VM type = 64-bit 16/08/16 03:53:03 INFO util.GSet: 1.0% max memory 889 MB = 8.9 MB 16/08/16 03:53:03 INFO util.GSet: capacity = 2^20 = 1048576 entries 16/08/16 03:53:03 INFO namenode.FSDirectory: ACLs enabled? false 16/08/16 03:53:03 INFO namenode.FSDirectory: XAttrs enabled? true 16/08/16 03:53:03 INFO namenode.FSDirectory: Maximum size of an xattr: 16384 16/08/16 03:53:03 INFO namenode.NameNode: Caching file names occuring more than 10 times 16/08/16 03:53:03 INFO util.GSet: Computing capacity for map cachedBlocks 16/08/16 03:53:03 INFO util.GSet: VM type = 64-bit 16/08/16 03:53:03 INFO util.GSet: 0.25% max memory 889 MB = 2.2 MB 16/08/16 03:53:03 INFO util.GSet: capacity = 2^18 = 262144 entries 16/08/16 03:53:03 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033 16/08/16 03:53:03 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0 16/08/16 03:53:03 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension = 30000 16/08/16 03:53:03 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.window.num.buckets = 10 16/08/16 03:53:03 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.num.users = 10 16/08/16 03:53:03 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.windows.minutes = 1,5,25 16/08/16 03:53:03 INFO namenode.FSNamesystem: Retry cache on namenode is enabled 16/08/16 03:53:03 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis 16/08/16 03:53:03 INFO util.GSet: Computing capacity for map NameNodeRetryCache 16/08/16 03:53:03 INFO util.GSet: VM type = 64-bit 16/08/16 03:53:03 INFO util.GSet: 0.029999999329447746% max memory 889 MB = 273.1 KB 16/08/16 03:53:03 INFO util.GSet: capacity = 2^15 = 32768 entries 16/08/16 03:53:04 INFO namenode.FSImage: Allocated new BlockPoolId: BP-11472095-172.17.0.2-1471319583999 16/08/16 03:53:04 INFO common.Storage: Storage directory /usr/app/hadoop/tmp/dfs/name has been successfully formatted. 16/08/16 03:53:04 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0 16/08/16 03:53:04 INFO util.ExitUtil: Exiting with status 0 16/08/16 03:53:04 INFO namenode.NameNode: SHUTDOWN_MSG: /************************************************************ SHUTDOWN_MSG: Shutting down NameNode at hadoop0/172.17.0.2 ************************************************************/