15/08/20 02:22:05 INFO namenode.FSNamesystem: Append Enabled: true
15/08/20 02:22:06 INFO util.GSet: Computing capacity for map INodeMap
15/08/20 02:22:06 INFO util.GSet: VM type = 64-bit
15/08/20 02:22:06 INFO util.GSet: 1.0% max memory 889 MB = 8.9 MB
15/08/20 02:22:06 INFO util.GSet: capacity = 2^20 = 1048576 entries
15/08/20 02:22:06 INFO namenode.NameNode: Caching file names occuring more than 10 times
15/08/20 02:22:06 INFO util.GSet: Computing capacity for map cachedBlocks
15/08/20 02:22:06 INFO util.GSet: VM type = 64-bit
15/08/20 02:22:06 INFO util.GSet: 0.25% max memory 889 MB = 2.2 MB
15/08/20 02:22:06 INFO util.GSet: capacity = 2^18 = 262144 entries
15/08/20 02:22:06 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033
15/08/20 02:22:06 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0
15/08/20 02:22:06 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension = 30000
15/08/20 02:22:06 INFO namenode.FSNamesystem: Retry cache on namenode is enabled
15/08/20 02:22:06 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis
15/08/20 02:22:06 INFO util.GSet: Computing capacity for map NameNodeRetryCache
15/08/20 02:22:06 INFO util.GSet: VM type = 64-bit
15/08/20 02:22:06 INFO util.GSet: 0.029999999329447746% max memory 889 MB = 273.1 KB
15/08/20 02:22:06 INFO util.GSet: capacity = 2^15 = 32768 entries
15/08/20 02:22:06 INFO namenode.NNConf: ACLs enabled? false
15/08/20 02:22:06 INFO namenode.NNConf: XAttrs enabled? true
15/08/20 02:22:06 INFO namenode.NNConf: Maximum size of an xattr: 16384
15/08/20 02:22:08 INFO namenode.FSImage: Allocated new BlockPoolId: BP-971817124-192.168.75.117-1440062528650
15/08/20 02:22:08 INFO common.Storage: Storage directory /home/linuxidc/hadoop/hdfs/name has been successfully formatted.
15/08/20 02:22:10 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
15/08/20 02:22:10 INFO util.ExitUtil: Exiting with status 0
15/08/20 02:22:10 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at linuxidc117/192.168.75.117
************************************************************/
3.开启namenode：
[linuxidc@linuxidc117 hadoop-2.6.0]$ sbin/hadoop-daemon.sh start namenode
starting namenode, logging to /home/linuxidc/hadoop-2.6.0/logs/hadoop-linuxidc-namenode-linuxidc117.out
[linuxidc@linuxidc117 hadoop-2.6.0]$ jps
18550 NameNode
18604 Jps
4.格式化standby namenode
[linuxidc@linuxidc119 hadoop-2.6.0]$ bin/hdfs namenode -bootstrapStandby
15/08/20 02:36:26 INFO namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG: host = linuxidc119/192.168.75.119
STARTUP_MSG: args = [-bootstrapStandby]
STARTUP_MSG: version = 2.6.0
.....
.....
STARTUP_MSG: build = https://git-wip-us.apache.org/repos/asf/hadoop.git -r e3496499ecb8d220fba99dc5ed4c99c8f9e33bb1; compiled by 'jenkins' on 2014-11-13T21:10Z
STARTUP_MSG: java = 1.8.0_51
************************************************************/
15/08/20 02:36:26 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]
15/08/20 02:36:26 INFO namenode.NameNode: createNameNode [-bootstrapStandby]
=====================================================
About to bootstrap Standby ID nn2 from:
Nameservice ID: hadoop-cluster1
Other Namenode ID: nn1
Other NN's HTTP address: :50070
Other NN's IPC address: linuxidc117/192.168.75.117:8020
Namespace ID: 1244139539
Block pool ID: BP-971817124-192.168.75.117-1440062528650
Cluster ID: hadoop-cluster
Layout version: -60
=====================================================
15/08/20 02:36:28 INFO common.Storage: Storage directory /home/linuxidc/hadoop/hdfs/name has been successfully formatted.
15/08/20 02:36:29 INFO namenode.TransferFsImage: Opening connection to :50070/imagetransfer?getimage=1&txid=0&storageInfo=-60:1244139539:0:hadoop-cluster
15/08/20 02:36:30 INFO namenode.TransferFsImage: Image Transfer timeout configured to 60000 milliseconds
15/08/20 02:36:30 INFO namenode.TransferFsImage: Transfer took 0.01s at 0.00 KB/s
15/08/20 02:36:30 INFO namenode.TransferFsImage: Downloaded file fsimage.ckpt_0000000000000000000 size 352 bytes.
15/08/20 02:36:30 INFO util.ExitUtil: Exiting with status 0
15/08/20 02:36:30 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at linuxidc119/192.168.75.119
************************************************************/
5.开启standby namenode