Jan 9

hadoop-2.6.0中主机别名的影响导致hadoop启动成功但是无法访问 不指定

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hadoop-2.6.0中主机别名的影响导致hadoop启动成功但是无法访问
已经成功启动hadoopl ,输入命令jps可以看到如下4个进程已经启动,但是访问http://localhost:50070或者http://192.168.52.10 的时候还是失败 ,感觉很奇怪,后来发现是/etc/hosts 的配置问题,因为名称itlife365.com 已经是一个再用的外网可以访问的域名,所以在虚拟机配置启动的时候,会生成一个非192.168.52.10的ip  导致。
[hadoop@itlife365 hadoop]$ jps
11640 NameNode
12036 Jps
11842 SecondaryNameNode
11643 DateNode

修改/etc/hosts下的127.0.0.1 itlife365.com 改为 127.0.0.1 itlife365 后正常,所以这个名称还是不能随便配置的,特别是在可联网的情况下。
比对结果如下:

[hadoop@itlife365 hadoop]$ ./bin/hadoop version
Hadoop 2.6.0
Subversion Unknown -r Unknown
Compiled by root on 2017-01-09T05:54Z
Compiled with protoc 2.5.0
From source with checksum 18e43357c8f927c0695f1e9522859d6a
This command was run using /usr/local/hadoop/share/hadoop/common/hadoop-common-2.6.0.jar
[hadoop@itlife365 hadoop]$

*******************************修改前的hosts
[root@itlife365 hadoop-2.6.0-src]# cat /etc/hosts

127.0.0.1   localhost itlife365 localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.56.10 itlife365.com
*******************************
[hadoop@itlife365 hadoop]$ pwd
/usr/local/hadoop/etc/hadoop
[hadoop@itlife365 hadoop]$ ./bin/hdfs namenode -format
-bash: ./bin/hdfs: No such file or directory
[hadoop@itlife365 hadoop]$ cd ..
[hadoop@itlife365 etc]$ cd ..
[hadoop@itlife365 hadoop]$ ls
bin  etc  include  lib  libexec  LICENSE.txt  NOTICE.txt  README.txt  sbin  share
[hadoop@itlife365 hadoop]$ ./bin/hdfs namenode -format
17/01/09 20:21:19 INFO namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG:   host = itlife365/112.5.240.235
STARTUP_MSG:   args = [-format]
STARTUP_MSG:   version = 2.6.0
STARTUP_MSG:   classpath = /usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/hadoop-annotations-2.6.0.jar:/usr/local/hadoop/share/hadoop/common/lib/api-asn1-api-1.0.0-M20.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-io-2.4.jar:/usr/local/hadoop/share/hadoop/common/lib/jasper-compiler-5.5.23.jar:/usr/local/hadoop/share/hadoop/common/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-logging-1.1.3.jar:/usr/local/hadoop/share/hadoop/common/lib/jets3t-0.9.0.jar:/usr/local/hadoop/share/hadoop/common/lib/hadoop-auth-2.6.0.jar:/usr/local/hadoop/share/hadoop/common/lib/slf4j-api-1.7.5.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-httpclient-3.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jettison-1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/gson-2.2.4.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-math3-3.1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/usr/local/hadoop/share/hadoop/common/lib/xmlenc-0.52.jar:/usr/local/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-net-3.1.jar:/usr/local/hadoop/share/hadoop/common/lib/curator-framework-2.6.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-configuration-1.6.jar:/usr/local/hadoop/share/hadoop/common/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/common/lib/jsr305-1.3.9.jar:/usr/local/hadoop/share/hadoop/common/lib/httpcore-4.2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/junit-4.11.jar:/usr/local/hadoop/share/hadoop/common/lib/jsp-api-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/stax-api-1.0-2.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/common/lib/hamcrest-core-1.3.jar:/usr/local/hadoop/share/hadoop/common/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/common/lib/mockito-all-1.8.5.jar:/usr/local/hadoop/share/hadoop/common/lib/apacheds-i18n-2.0.0-M15.jar:/usr/local/hadoop/share/hadoop/common/lib/httpclient-4.2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-digester-1.8.jar:/usr/local/hadoop/share/hadoop/common/lib/java-xmlbuilder-0.4.jar:/usr/local/hadoop/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/usr/local/hadoop/share/hadoop/common/lib/activation-1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/common/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-xc-1.9.13.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-lang-2.6.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-json-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/jasper-runtime-5.5.23.jar:/usr/local/hadoop/share/hadoop/common/lib/api-util-1.0.0-M20.jar:/usr/local/hadoop/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/common/lib/curator-recipes-2.6.0.jar:/usr/local/hadoop/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/common/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/usr/local/hadoop/share/hadoop/common/lib/jsch-0.1.42.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-mapper-asl-1.9.13.jar:/usr/local/hadoop/share/hadoop/common/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-collections-3.2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-core-asl-1.9.13.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-el-1.0.jar:/usr/local/hadoop/share/hadoop/common/lib/htrace-core-3.0.4.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-jaxrs-1.9.13.jar:/usr/local/hadoop/share/hadoop/common/lib/zookeeper-3.4.6.jar:/usr/local/hadoop/share/hadoop/common/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/common/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/common/lib/curator-client-2.6.0.jar:/usr/local/hadoop/share/hadoop/common/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/common/hadoop-common-2.6.0-tests.jar:/usr/local/hadoop/share/hadoop/common/hadoop-nfs-2.6.0.jar:/usr/local/hadoop/share/hadoop/common/hadoop-common-2.6.0.jar:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-io-2.4.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/xercesImpl-2.9.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-logging-1.1.3.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/xml-apis-1.3.04.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jsr305-1.3.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jsp-api-2.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-lang-2.6.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jasper-runtime-5.5.23.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jackson-mapper-asl-1.9.13.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jackson-core-asl-1.9.13.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-el-1.0.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/htrace-core-3.0.4.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.6.0.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-nfs-2.6.0.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.6.0-tests.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-io-2.4.jar:/usr/local/hadoop/share/hadoop/yarn/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-logging-1.1.3.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-httpclient-3.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jettison-1.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jsr305-1.3.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/stax-api-1.0-2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jline-0.9.94.jar:/usr/local/hadoop/share/hadoop/yarn/lib/javax.inject-1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/leveldbjni-all-1.8.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jaxb-impl-2.2.3-1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/activation-1.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guice-3.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-xc-1.9.13.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-lang-2.6.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-json-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jaxb-api-2.2.2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-mapper-asl-1.9.13.jar:/usr/local/hadoop/share/hadoop/yarn/lib/aopalliance-1.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-collections-3.2.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-client-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-core-asl-1.9.13.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-jaxrs-1.9.13.jar:/usr/local/hadoop/share/hadoop/yarn/lib/zookeeper-3.4.6.jar:/usr/local/hadoop/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/yarn/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.6.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.6.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.6.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-tests-2.6.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.6.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-common-2.6.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-applicationhistoryservice-2.6.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-api-2.6.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-client-2.6.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-common-2.6.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-registry-2.6.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.6.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/hadoop-annotations-2.6.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/commons-io-2.4.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/junit-4.11.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/hamcrest-core-1.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/javax.inject-1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/leveldbjni-all-1.8.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/guice-3.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.9.13.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jackson-core-asl-1.9.13.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.6.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.6.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.6.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.6.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.6.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.6.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.6.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.6.0-tests.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.6.0.jar:/usr/local/hadoop/contrib/capacity-scheduler/*.jar
STARTUP_MSG:   build = Unknown -r Unknown; compiled by 'root' on 2017-01-09T05:54Z
STARTUP_MSG:   java = 1.7.0_121
************************************************************/
17/01/09 20:21:19 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]
17/01/09 20:21:20 INFO namenode.NameNode: createNameNode [-format]
17/01/09 20:21:28 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Formatting using clusterid: CID-d09e5c30-943e-471e-a621-6ce7f5ebb227
17/01/09 20:21:32 INFO namenode.FSNamesystem: No KeyProvider found.
17/01/09 20:21:32 INFO namenode.FSNamesystem: fsLock is fair:true
17/01/09 20:21:33 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit=1000
17/01/09 20:21:33 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true
17/01/09 20:21:33 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000
17/01/09 20:21:33 INFO blockmanagement.BlockManager: The block deletion will start around 2017 Jan 09 20:21:33
17/01/09 20:21:33 INFO util.GSet: Computing capacity for map BlocksMap
17/01/09 20:21:33 INFO util.GSet: VM type       = 32-bit
17/01/09 20:21:33 INFO util.GSet: 2.0% max memory 966.7 MB = 19.3 MB
17/01/09 20:21:33 INFO util.GSet: capacity      = 2^22 = 4194304 entries
17/01/09 20:21:36 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false
17/01/09 20:21:36 INFO blockmanagement.BlockManager: defaultReplication         = 1
17/01/09 20:21:36 INFO blockmanagement.BlockManager: maxReplication             = 512
17/01/09 20:21:36 INFO blockmanagement.BlockManager: minReplication             = 1
17/01/09 20:21:36 INFO blockmanagement.BlockManager: maxReplicationStreams      = 2
17/01/09 20:21:36 INFO blockmanagement.BlockManager: shouldCheckForEnoughRacks  = false
17/01/09 20:21:36 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000
17/01/09 20:21:36 INFO blockmanagement.BlockManager: encryptDataTransfer        = false
17/01/09 20:21:36 INFO blockmanagement.BlockManager: maxNumBlocksToLog          = 1000
17/01/09 20:21:36 INFO namenode.FSNamesystem: fsOwner             = hadoop (auth:SIMPLE)
17/01/09 20:21:36 INFO namenode.FSNamesystem: supergroup          = supergroup
17/01/09 20:21:36 INFO namenode.FSNamesystem: isPermissionEnabled = true
17/01/09 20:21:36 INFO namenode.FSNamesystem: HA Enabled: false
17/01/09 20:21:36 INFO namenode.FSNamesystem: Append Enabled: true
17/01/09 20:21:38 INFO util.GSet: Computing capacity for map INodeMap
17/01/09 20:21:38 INFO util.GSet: VM type       = 32-bit
17/01/09 20:21:38 INFO util.GSet: 1.0% max memory 966.7 MB = 9.7 MB
17/01/09 20:21:38 INFO util.GSet: capacity      = 2^21 = 2097152 entries
17/01/09 20:21:39 INFO namenode.NameNode: Caching file names occuring more than 10 times
17/01/09 20:21:39 INFO util.GSet: Computing capacity for map cachedBlocks
17/01/09 20:21:39 INFO util.GSet: VM type       = 32-bit
17/01/09 20:21:39 INFO util.GSet: 0.25% max memory 966.7 MB = 2.4 MB
17/01/09 20:21:39 INFO util.GSet: capacity      = 2^19 = 524288 entries
17/01/09 20:21:39 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033
17/01/09 20:21:39 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0
17/01/09 20:21:39 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension     = 30000
17/01/09 20:21:39 INFO namenode.FSNamesystem: Retry cache on namenode is enabled
17/01/09 20:21:39 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis
17/01/09 20:21:40 INFO util.GSet: Computing capacity for map NameNodeRetryCache
17/01/09 20:21:40 INFO util.GSet: VM type       = 32-bit
17/01/09 20:21:40 INFO util.GSet: 0.029999999329447746% max memory 966.7 MB = 297.0 KB
17/01/09 20:21:40 INFO util.GSet: capacity      = 2^16 = 65536 entries
17/01/09 20:21:40 INFO namenode.NNConf: ACLs enabled? false
17/01/09 20:21:40 INFO namenode.NNConf: XAttrs enabled? true
17/01/09 20:21:40 INFO namenode.NNConf: Maximum size of an xattr: 16384
17/01/09 20:21:42 INFO namenode.FSImage: Allocated new BlockPoolId: BP-711655602-112.5.240.235-1483964501441
17/01/09 20:21:42 INFO common.Storage: Storage directory /usr/local/hadoop/tmp/dfs/name has been successfully formatted.
17/01/09 20:21:44 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
17/01/09 20:21:44 INFO util.ExitUtil: Exiting with status 0
17/01/09 20:21:44 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at itlife365/112.5.240.235
************************************************************/
[hadoop@itlife365 hadoop]$

*******************************修改后的hosts
[root@itlife365 hadoop-2.6.0-src]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.56.10 itlife365
*******************************
[hadoop@itlife365 hadoop]$ ./bin/hdfs namenode -format
17/01/09 21:19:01 INFO namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG:   host = itlife365/192.168.56.10
STARTUP_MSG:   args = [-format]
STARTUP_MSG:   version = 2.6.0
...................
17/01/09 21:19:15 INFO util.GSet: capacity      = 2^16 = 65536 entries
17/01/09 21:19:16 INFO namenode.NNConf: ACLs enabled? false
17/01/09 21:19:16 INFO namenode.NNConf: XAttrs enabled? true
17/01/09 21:19:16 INFO namenode.NNConf: Maximum size of an xattr: 16384
Re-format filesystem in Storage Directory /usr/local/hadoop/tmp/dfs/name ? (Y or N) Y
17/01/09 21:21:32 INFO namenode.FSImage: Allocated new BlockPoolId: BP-1078861270-192.168.56.10-1483968091711
17/01/09 21:21:32 INFO common.Storage: Storage directory /usr/local/hadoop/tmp/dfs/name has been successfully formatted.
17/01/09 21:21:34 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
17/01/09 21:21:34 INFO util.ExitUtil: Exiting with status 0
17/01/09 21:21:34 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at itlife365/192.168.56.10
************************************************************/
[hadoop@itlife365 hadoop]$

-----end

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