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https://issues.apache.org/jira/browse/HBASE-25378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17250499#comment-17250499
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Hudson commented on HBASE-25378:
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Results for branch branch-2
[build #129 on
builds.a.o|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/branch-2/129/]:
(/) *{color:green}+1 overall{color}*
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details (if available):
(/) {color:green}+1 general checks{color}
-- For more information [see general
report|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/branch-2/129/General_20Nightly_20Build_20Report/]
(/) {color:green}+1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2)
report|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/branch-2/129/JDK8_20Nightly_20Build_20Report_20_28Hadoop2_29/]
(/) {color:green}+1 jdk8 hadoop3 checks{color}
-- For more information [see jdk8 (hadoop3)
report|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/branch-2/129/JDK8_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(/) {color:green}+1 jdk11 hadoop3 checks{color}
-- For more information [see jdk11
report|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/branch-2/129/JDK11_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(/) {color:green}+1 source release artifact{color}
-- See build output for details.
(/) {color:green}+1 client integration test{color}
> Legacy comparator in Hfile trailer will fail to load
> ----------------------------------------------------
>
> Key: HBASE-25378
> URL: https://issues.apache.org/jira/browse/HBASE-25378
> Project: HBase
> Issue Type: Bug
> Affects Versions: 3.0.0-alpha-1, 2.4.0, 2.3.2
> Reporter: Pankaj Kumar
> Assignee: Pankaj Kumar
> Priority: Critical
> Fix For: 3.0.0-alpha-1, 2.4.0
>
>
> HBASE-24968 moved MetaCellComparator out from CellComparatorImpl to avoid the
> deadlock issue. But this introduced compatibility issue, old hfile with
> comparator class as
> "org.apache.hadoop.hbase.CellComparator$MetaCellComparator" will fail to open
> due to ClassNotFoundException.
> Also we should also handle the case when comparator class is
> "org.apache.hadoop.hbase.CellComparatorImpl$MetaCellComparator", which was
> case before HBASE-24968.
>
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