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https://issues.apache.org/jira/browse/HDFS-3119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kihwal Lee updated HDFS-3119:
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Fix Version/s: 0.23.7
Committed to branch-0.23.
> Overreplicated block is not deleted even after the replication factor is
> reduced after sync follwed by closing that file
> ------------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-3119
> URL: https://issues.apache.org/jira/browse/HDFS-3119
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 0.24.0
> Reporter: J.Andreina
> Assignee: Ashish Singhi
> Priority: Minor
> Labels: patch
> Fix For: 0.24.0, 2.0.0-alpha, 0.23.7
>
> Attachments: HDFS-3119-1.patch, HDFS-3119-1.patch, HDFS-3119.patch
>
>
> cluster setup:
> --------------
> 1NN,2 DN,replication factor 2,block report interval 3sec ,block size-256MB
> step1: write a file "filewrite.txt" of size 90bytes with sync(not closed)
> step2: change the replication factor to 1 using the command: "./hdfs dfs
> -setrep 1 /filewrite.txt"
> step3: close the file
> * At the NN side the file "Decreasing replication from 2 to 1 for
> /filewrite.txt" , logs has occured but the overreplicated blocks are not
> deleted even after the block report is sent from DN
> * while listing the file in the console using "./hdfs dfs -ls " the
> replication factor for that file is mentioned as 1
> * In fsck report for that files displays that the file is replicated to 2
> datanodes
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