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https://issues.apache.org/jira/browse/BOOKKEEPER-962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15630452#comment-15630452
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ASF GitHub Bot commented on BOOKKEEPER-962:
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GitHub user merlimat opened a pull request:
https://github.com/apache/bookkeeper/pull/70
BOOKKEEPER-962: Add more journal timing stats
It is useful to know the sync latency on the journal to identify
disk/filesystem
related latency spikes that will cause all the entries to queue up. In the
same
line, it's useful to track the amount of time spent in the journal queue.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/merlimat/bookkeeper bk-journal-latency
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/bookkeeper/pull/70.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 #70
----
commit c0d960cda4d4a875aea6cb8e9177525d945c6f5d
Author: Matteo Merli <[email protected]>
Date: 2016-11-02T20:50:13Z
BOOKKEEPER-962: Add more journal timing stats
----
> Add more journal timing stats
> -----------------------------
>
> Key: BOOKKEEPER-962
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-962
> Project: Bookkeeper
> Issue Type: Improvement
> Reporter: Matteo Merli
> Assignee: Matteo Merli
> Priority: Trivial
> Fix For: 4.5.0
>
>
> It is useful to know the sync latency on the journal to identify
> disk/filesystem
> related latency spikes that will cause all the entries to queue up. In the
> same
> line, it's useful to track the amount of time spent in the journal queue.
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