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Posted to hdfs-dev@hadoop.apache.org by "J.Andreina (Created) (JIRA)" <ji...@apache.org> on 2012/03/20 15:15:39 UTC
[jira] [Created] (HDFS-3119) Overreplicated block is not deleted
even after the replication factor is reduced after sync follwed by closing
that file
Overreplicated block is not deleted even after the replication factor is reduced after sync follwed by closing that file
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Key: HDFS-3119
URL: https://issues.apache.org/jira/browse/HDFS-3119
Project: Hadoop HDFS
Issue Type: Bug
Components: name-node
Affects Versions: 0.24.0
Reporter: J.Andreina
Priority: Minor
Fix For: 0.24.0, 0.23.2
cluster setup:
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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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