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https://issues.apache.org/jira/browse/ZOOKEEPER-3019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16458389#comment-16458389
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ASF GitHub Bot commented on ZOOKEEPER-3019:
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GitHub user nkalmar opened a pull request:
https://github.com/apache/zookeeper/pull/510
ZOOKEEPER-3019 add metric for slow fsyncs count
Backported fsync metric count from master.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/nkalmar/zookeeper branch-3.4
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zookeeper/pull/510.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #510
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commit 1485a05b2a4188b3a9491bbeb79926e2ee7124e0
Author: Norbert Kalmar <nkalmar@...>
Date: 2018-04-30T08:15:30Z
ZOOKEEPER-3019 add metric for slow fsyncs count
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> Add a metric to track number of slow fsyncs
> -------------------------------------------
>
> Key: ZOOKEEPER-3019
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3019
> Project: ZooKeeper
> Issue Type: Improvement
> Components: jmx, server
> Affects Versions: 3.5.3, 3.4.11, 3.6.0
> Reporter: Norbert Kalmar
> Assignee: Norbert Kalmar
> Priority: Major
> Fix For: 3.5.4, 3.6.0, 3.4.13
>
>
> Add jmx bean and Command to ZooKeeper server to expose the the number of slow
> fsyncs as a metric.
> FileTxnLog.commit() should count the number of times fsync exceedsÂ
> fsyncWarningThresholdMS.
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