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https://issues.apache.org/jira/browse/HDFS-10953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15547125#comment-15547125
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Konstantin Shvachko commented on HDFS-10953:
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Hey [~shahrs87], thanks for volunteering.
One thing though, this should be dependent on HDFS-10301. It wouldn't make
sense to collide the two. I'll re-link issues to emphasize this.
> Remove single-rpc block reports.
> --------------------------------
>
> Key: HDFS-10953
> URL: https://issues.apache.org/jira/browse/HDFS-10953
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.6.4
> Reporter: Konstantin Shvachko
> Assignee: Rushabh S Shah
>
> Currently a DataNode can send block reports as a single RPC for all storages
> together or as multiple per storage RPCs. The choice is based on the size of
> the report and is controlled by the configuration parameter
> {{dfs.blockreport.split.threshold}}.
> As discussed in HDFS-10301, all block reports should be per-storage multiple
> RPCs.
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