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https://issues.apache.org/jira/browse/HDFS-16371?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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tomscut updated HDFS-16371:
---------------------------
Description:
Currently, the datanode can detect slow disks. See HDFS-11461.
And after HDFS-16311, the slow disk information we collected is more accurate.
So we can exclude these slow disks according to some rules when choosing
volume. This will prevents some slow disks from affecting the throughput of the
whole datanode.
was:
Currently, the datanode can detect slow disks. See
[HDFS-11461|https://issues.apache.org/jira/browse/HDFS-11461].
And after
[HDFS-16311|https://issues.apache.org/jira/browse/HDFS-16311[],|http://example.com]%2C/]
the slow disk information we collected is more accurate.
So we can exclude these slow disks according to some rules when choosing
volume. This will prevents some slow disks from affecting the throughput of the
whole datanode.
> Exclude slow disks when choosing volume
> ---------------------------------------
>
> Key: HDFS-16371
> URL: https://issues.apache.org/jira/browse/HDFS-16371
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: tomscut
> Assignee: tomscut
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Currently, the datanode can detect slow disks. See HDFS-11461.
> And after HDFS-16311, the slow disk information we collected is more accurate.
> So we can exclude these slow disks according to some rules when choosing
> volume. This will prevents some slow disks from affecting the throughput of
> the whole datanode.
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