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https://issues.apache.org/jira/browse/HDFS-11664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15980679#comment-15980679
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DENG FEI commented on HDFS-11664:
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Normally should maintain definite storage remaining,but if out of control,many
blocks need to do replication cause of write minimum replica,althought
immediatelly delete heavy path and file,the cluster can't recovery for a long
time.
> Invalidate blocks cannot invoke because of replication work slowly while
> cluster is almost full
> -----------------------------------------------------------------------------------------------
>
> Key: HDFS-11664
> URL: https://issues.apache.org/jira/browse/HDFS-11664
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Affects Versions: 2.7.2, 3.0.0-alpha2
> Reporter: DENG FEI
> Attachments: HDFS-11664.001.patch
>
>
> Currently invalideBlock is executed after replication, when 'dfs remaining'
> is not much left and affect block writing, but can not release sufficient
> storage quickly after did delete, the daemon stuck at computing replication.
> Split replication and invalidation may be better.
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