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https://issues.apache.org/jira/browse/HDFS-3295?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ashish Singhi reassigned HDFS-3295:
-----------------------------------
Assignee: Ashish Singhi
> Mismatch in number of bytes already moved and number of bytes being moved in
> balancer report
> --------------------------------------------------------------------------------------------
>
> Key: HDFS-3295
> URL: https://issues.apache.org/jira/browse/HDFS-3295
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: balancer
> Affects Versions: 0.23.0
> Reporter: J.Andreina
> Assignee: Ashish Singhi
> Fix For: 0.24.0
>
>
> Scenario:
> Replication factor =
> 1,fs.defaultFS=hdfs://namenodeip:port,dfs.namenode.rpc-address=namenodeip:port.
> step 1: started DN1.Pumped 4.67GB of data
> step 2: started DN2.
> step 3: issued the balancer cmd(./start-balancer.sh -threshold 1)
> Totally 848.41 MB has been moved to 2DN and took 4 iterations to move the
> blocks to 2DN.
> But in balancer output in all the iterations the number of bytes already
> moved is alway 0KB and there is mismatch in the Bytes being moved with the
> bytes left to move
> Balancer output for 2nd Iteration
> =================================
> {noformat}
> Time Stamp Iteration# Bytes Already Moved Bytes Left To Move
> Bytes Being Moved
> Apr 18, 2012 12:41:20 PM 0 0 KB 848.41 MB
> 151.18 MB
> Apr 18, 2012 1:06:46 PM 1 0 KB 646.02 MB
> 151.18 MB
> Apr 18, 2012 1:10:28 PM 2 0 KB 417.43 MB
> 151.18 MB
> Apr 18, 2012 1:14:04 PM 3 0 KB 223.84 MB
> 151.18 MB
> Apr 18, 2012 1:18:10 PM 4 0 KB 30.34 MB
> 151.18 MB{noformat}
> In the above balancer output
> •Bytes already moved is 0KB
> • In 3 rd iterarion Bytes left to move is 223.84 MB but Bytes being moved is
> 151.18 MB . So in next iteration the bytes left to move should be 223.84 MB -
> 151.18 MB
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