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https://issues.apache.org/jira/browse/HBASE-22459?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16852779#comment-16852779
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Hudson commented on HBASE-22459:
--------------------------------
Results for branch branch-2
[build #1945 on
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/branch-2/1945/]:
(x) *{color:red}-1 overall{color}*
----
details (if available):
(/) {color:green}+1 general checks{color}
-- For more information [see general
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2/1945//General_Nightly_Build_Report/]
(x) {color:red}-1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2)
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2/1945//JDK8_Nightly_Build_Report_(Hadoop2)/]
(x) {color:red}-1 jdk8 hadoop3 checks{color}
-- For more information [see jdk8 (hadoop3)
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2/1945//JDK8_Nightly_Build_Report_(Hadoop3)/]
(/) {color:green}+1 source release artifact{color}
-- See build output for details.
(x) {color:red}-1 client integration test{color}
--Failed when running client tests on top of Hadoop 2. [see log for
details|https://builds.apache.org/job/HBase%20Nightly/job/branch-2/1945//artifact/output-integration/hadoop-2.log].
(note that this means we didn't run on Hadoop 3)
> Expose store reader reference count
> -----------------------------------
>
> Key: HBASE-22459
> URL: https://issues.apache.org/jira/browse/HBASE-22459
> Project: HBase
> Issue Type: Improvement
> Components: HFile, metrics, regionserver
> Reporter: Andrew Purtell
> Assignee: Andrew Purtell
> Priority: Minor
> Fix For: 3.0.0, 1.5.0, 2.3.0
>
> Attachments: HBASE-22459-branch-1.patch, HBASE-22459-branch-1.patch,
> HBASE-22459-branch-1.patch, HBASE-22459-branch-2.patch,
> HBASE-22459-branch-2.patch, HBASE-22459-branch-2.patch, HBASE-22459.patch,
> HBASE-22459.patch, HBASE-22459.patch
>
>
> Expose the reference count over a region's store file readers as a metric in
> region metrics and also as a new field in RegionLoad. This will make visible
> the reader reference count over all stores in the region to both metrics
> capture and anything that consumes ClusterStatus, like the shell's status
> command and the master UI.
> Coprocessors that wrap scanners might leak them, which will leak readers. We
> log when this happens but in order to notice the increasing trend of
> reference counts you have to scrape log output. It would be better if this
> information is also available as a metric.
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