Hello Onder, The "successfully formatted" line tells me that the HDFS format worked successfully, so I think all is well. Perhaps that wiki page has some outdated information.
--Chris Nauroth From: Onder SEZGIN <ondersez...@gmail.com<mailto:ondersez...@gmail.com>> Reply-To: "user@hadoop.apache.org<mailto:user@hadoop.apache.org>" <user@hadoop.apache.org<mailto:user@hadoop.apache.org>> Date: Monday, September 28, 2015 at 1:18 AM To: "user@hadoop.apache.org<mailto:user@hadoop.apache.org>" <user@hadoop.apache.org<mailto:user@hadoop.apache.org>> Subject: question regarding Hadoop2OnWindows guide Hi, I follow the guide on this link, https://wiki.apache.org/hadoop/Hadoop2OnWindows and i ran the command below: %HADOOP_PREFIX%\bin\hdfs namenode -format I can not see such output mentioned in the guide, This command will print a number of filesystem parameters. Just look for the following two strings to ensure that the format command succeeded. 14/01/18 08:36:23 INFO namenode.FSImage: Saving image file \tmp\hadoop-username\dfs\name\current\fsimage.ckpt_0000000000000000000 using no compression 14/01/18 08:36:23 INFO namenode.FSImage: Image file \tmp\hadoop-username\dfs\name\current\fsimage.ckpt_0000000000000000000 of size 200 bytes saved in 0 seconds. I can see the output as below; ************************************************************/ 15/09/28 10:57:00 INFO namenode.NameNode: createNameNode [-format] Formatting using clusterid: CID-dc3dfaa8-663b-46bb-8529-14f7ffaa0522 15/09/28 10:57:01 INFO namenode.FSNamesystem: No KeyProvider found. 15/09/28 10:57:01 INFO namenode.FSNamesystem: fsLock is fair:true 15/09/28 10:57:01 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.lim it=1000 15/09/28 10:57:01 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.re<http://dfs.namenode.datanode.re> gistration.ip-hostname-check=true 15/09/28 10:57:01 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay. block.deletion.sec is set to 000:00:00:00.000 15/09/28 10:57:01 INFO blockmanagement.BlockManager: The block deletion will sta rt around 2015 Eyl 28 10:57:01 15/09/28 10:57:01 INFO util.GSet: Computing capacity for map BlocksMap 15/09/28 10:57:01 INFO util.GSet: VM type = 64-bit 15/09/28 10:57:01 INFO util.GSet: 2.0% max memory 889 MB = 17.8 MB 15/09/28 10:57:01 INFO util.GSet: capacity = 2^21 = 2097152 entries 15/09/28 10:57:01 INFO blockmanagement.BlockManager: dfs.block.access.token.enab le=false 15/09/28 10:57:01 INFO blockmanagement.BlockManager: defaultReplication = 1 15/09/28 10:57:01 INFO blockmanagement.BlockManager: maxReplication = 512 15/09/28 10:57:01 INFO blockmanagement.BlockManager: minReplication = 1 15/09/28 10:57:01 INFO blockmanagement.BlockManager: maxReplicationStreams = 2 15/09/28 10:57:01 INFO blockmanagement.BlockManager: shouldCheckForEnoughRacks = false 15/09/28 10:57:01 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000 15/09/28 10:57:01 INFO blockmanagement.BlockManager: encryptDataTransfer = false 15/09/28 10:57:01 INFO blockmanagement.BlockManager: maxNumBlocksToLog = 1000 15/09/28 10:57:01 INFO namenode.FSNamesystem: fsOwner = <MYUSER> (a uth:SIMPLE) 15/09/28 10:57:01 INFO namenode.FSNamesystem: supergroup = supergroup 15/09/28 10:57:01 INFO namenode.FSNamesystem: isPermissionEnabled = true 15/09/28 10:57:01 INFO namenode.FSNamesystem: HA Enabled: false 15/09/28 10:57:01 INFO namenode.FSNamesystem: Append Enabled: true 15/09/28 10:57:02 INFO util.GSet: Computing capacity for map INodeMap 15/09/28 10:57:02 INFO util.GSet: VM type = 64-bit 15/09/28 10:57:02 INFO util.GSet: 1.0% max memory 889 MB = 8.9 MB 15/09/28 10:57:02 INFO util.GSet: capacity = 2^20 = 1048576 entries 15/09/28 10:57:02 INFO namenode.NameNode: Caching file names occuring more than 10 times 15/09/28 10:57:02 INFO util.GSet: Computing capacity for map cachedBlocks 15/09/28 10:57:02 INFO util.GSet: VM type = 64-bit 15/09/28 10:57:02 INFO util.GSet: 0.25% max memory 889 MB = 2.2 MB 15/09/28 10:57:02 INFO util.GSet: capacity = 2^18 = 262144 entries 15/09/28 10:57:02 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pc t = 0.9990000128746033 15/09/28 10:57:02 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanode s = 0 15/09/28 10:57:02 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension = 30000 15/09/28 10:57:02 INFO namenode.FSNamesystem: Retry cache on namenode is enabled 15/09/28 10:57:02 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis 15/09/28 10:57:02 INFO util.GSet: Computing capacity for map NameNodeRetryCache 15/09/28 10:57:02 INFO util.GSet: VM type = 64-bit 15/09/28 10:57:02 INFO util.GSet: 0.029999999329447746% max memory 889 MB = 273. 1 KB 15/09/28 10:57:02 INFO util.GSet: capacity = 2^15 = 32768 entries 15/09/28 10:57:02 INFO namenode.NNConf: ACLs enabled? false 15/09/28 10:57:02 INFO namenode.NNConf: XAttrs enabled? true 15/09/28 10:57:02 INFO namenode.NNConf: Maximum size of an xattr: 16384 15/09/28 10:57:02 INFO namenode.FSImage: Allocated new BlockPoolId: BP-635746082 -10.252.163.111-1443427022202 15/09/28 10:57:02 INFO common.Storage: Storage directory \tmp\hadoop-<MYUSER>\d fs\name has been successfully formatted. 15/09/28 10:57:02 INFO namenode.NNStorageRetentionManager: Going to retain 1 ima ges with txid >= 0 15/09/28 10:57:02 INFO util.ExitUtil: Exiting with status 0 15/09/28 10:57:02 INFO namenode.NameNode: SHUTDOWN_MSG: /************************************************************ SHUTDOWN_MSG: Shutting down NameNode at ..... ************************************************************/ I am not sure if everything is OK or not? and i left like the values are low; 15/09/28 10:57:01 INFO util.GSet: Computing capacity for map BlocksMap 15/09/28 10:57:01 INFO util.GSet: VM type = 64-bit 15/09/28 10:57:01 INFO util.GSet: 2.0% max memory 889 MB = 17.8 MB 15/09/28 10:57:01 INFO util.GSet: capacity = 2^21 = 2097152 entries Could anyone help me understand if these values are ok? Cheers -- Regards Onder
