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https://issues.apache.org/jira/browse/HBASE-24742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17159872#comment-17159872
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Hudson commented on HBASE-24742:
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Results for branch branch-1
[build #1327 on
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/branch-1/1327/]:
(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-1/1327//General_Nightly_Build_Report/]
(x) {color:red}-1 jdk7 checks{color}
-- For more information [see jdk7
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1/1327//JDK7_Nightly_Build_Report/]
(/) {color:green}+1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2)
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1/1327//JDK8_Nightly_Build_Report_(Hadoop2)/]
(x) {color:red}-1 source release artifact{color}
-- See build output for details.
> Improve performance of SKIP vs SEEK logic
> -----------------------------------------
>
> Key: HBASE-24742
> URL: https://issues.apache.org/jira/browse/HBASE-24742
> Project: HBase
> Issue Type: Bug
> Components: Performance, regionserver
> Affects Versions: 3.0.0-alpha-1, 1.7.0, 2.4.0
> Reporter: Lars Hofhansl
> Assignee: Lars Hofhansl
> Priority: Major
> Fix For: 3.0.0-alpha-1, 1.7.0, 2.4.0, 2.1.10, 2.2.6
>
> Attachments: 24742-master.txt, hbase-1.6-regression-flame-graph.png,
> hbase-24742-branch-1.txt
>
>
> In our testing of HBase 1.3 against the current tip of branch-1 we saw a 30%
> slowdown in scanning scenarios.
> We tracked it back to HBASE-17958 and HBASE-19863.
> Both add comparisons to one of the tightest HBase has.
> [~bharathv]
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