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Posted to hdfs-issues@hadoop.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2021/02/16 07:47:00 UTC
[jira] [Updated] (HDFS-15781) Add metrics for how blocks are moved
in replaceBlock
[ https://issues.apache.org/jira/browse/HDFS-15781?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated HDFS-15781:
----------------------------------
Labels: pull-request-available (was: )
> Add metrics for how blocks are moved in replaceBlock
> ----------------------------------------------------
>
> Key: HDFS-15781
> URL: https://issues.apache.org/jira/browse/HDFS-15781
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode
> Reporter: Leon Gao
> Assignee: Leon Gao
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> We can add some metrics for to track how the blocks are being moved, to get a sense of the locality of movements.
> * How many blocks copied to local host?
> * How many blocks moved to local disk thru hardlink?
> * How many blocks are copied out of the host
>
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