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https://issues.apache.org/jira/browse/HBASE-24831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17190231#comment-17190231
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Hudson commented on HBASE-24831:
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Results for branch branch-2
[build #31 on
builds.a.o|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/branch-2/31/]:
(x) *{color:red}-1 overall{color}*
----
details (if available):
(x) {color:red}-1 general checks{color}
-- Something went wrong running this stage, please [check relevant console
output|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/branch-2/31//console].
(x) {color:red}-1 jdk8 hadoop2 checks{color}
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output|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/branch-2/31//console].
(x) {color:red}-1 jdk8 hadoop3 checks{color}
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(/) {color:green}+1 source release artifact{color}
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(x) {color:red}-1 client integration test{color}
--Failed when running client tests on top of Hadoop 2. [see log for
details|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/branch-2/31//artifact/output-integration/hadoop-2.log].
(note that this means we didn't run on Hadoop 3)
> Avoid invoke Counter using reflection in SnapshotInputFormat
> -------------------------------------------------------------
>
> Key: HBASE-24831
> URL: https://issues.apache.org/jira/browse/HBASE-24831
> Project: HBase
> Issue Type: Improvement
> Reporter: Yechao Chen
> Assignee: Yechao Chen
> Priority: Major
> Labels: Performance, mapreduce, snapshot
> Fix For: 3.0.0-alpha-1, 2.4.0, 2.3.2
>
>
> In TableRecordReaderImpl we invoke Counter increment by reflection
> This will be called nextKeyValue() in TableSnapshotInputFormat
> reflection invoke is very slower than normal method call
> we can avoid these to improve the read performance
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