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https://issues.apache.org/jira/browse/HDFS-21?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Harsh J resolved HDFS-21.
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Resolution: Won't Fix
This is a clear effect of tweaking dfs.replication.min. You want your HDFS to
guarantee X replicas before file is closed, and that's what it will do.
Resolving as Won't Fix.
> unresponsive namenode because of not finding places to replicate
> ----------------------------------------------------------------
>
> Key: HDFS-21
> URL: https://issues.apache.org/jira/browse/HDFS-21
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Christian Kunz
>
> We have a 80 node cluster where many nodes started to fail such it went down
> to 59 live nodes. Originally we had our set of applications 60 times
> replicated. The cluster size went below the required replication number, and
> started to become increasingly less responsive, spewing out the following
> messages at a high rate:
> WARN org.apache.hadoop.fs.FSNamesystem: Not able to place enough replicas,
> still in need of 2
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