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https://issues.apache.org/jira/browse/HDFS-16811?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17631025#comment-17631025
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ASF GitHub Bot commented on HDFS-16811:
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haiyang1987 opened a new pull request, #5122:
URL: https://github.com/apache/hadoop/pull/5122
backport HDFS-16811. Support DecommissionBackoffMonitor parameters
reconfigurable into brach-3.3
> Support DecommissionBackoffMonitor parameters reconfigurable
> -------------------------------------------------------------
>
> Key: HDFS-16811
> URL: https://issues.apache.org/jira/browse/HDFS-16811
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Haiyang Hu
> Assignee: Haiyang Hu
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
>
> When the Backoff monitor is enabled, decommissionBackoffMonitor Parameters to
> reconfigurable
> 1.the parameter dfs.namenode.decommission.backoff.monitor.pending.limit can
> be dynamically adjusted to determines the maximum number of blocks related to
> decommission and maintenance operations that can be loaded into the
> replication queue.
> 2.the parameter
> dfs.namenode.decommission.backoff.monitor.pending.blocks.per.lock can be
> dynamically adjusted to determines release the namenode write lock after the
> numbe of blocks to process when moving blocks to pendingReplication .
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