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https://issues.apache.org/jira/browse/HBASE-28459?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17844154#comment-17844154
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Hudson commented on HBASE-28459:
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Results for branch branch-2
[build #1049 on
builds.a.o|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2/1049/]:
(/) *{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-hbase.apache.org/job/HBase%20Nightly/job/branch-2/1049/General_20Nightly_20Build_20Report/]
(/) {color:green}+1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2)
report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2/1049/JDK8_20Nightly_20Build_20Report_20_28Hadoop2_29/]
(/) {color:green}+1 jdk8 hadoop3 checks{color}
-- For more information [see jdk8 (hadoop3)
report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2/1049/JDK8_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(/) {color:green}+1 jdk11 hadoop3 checks{color}
-- For more information [see jdk11
report|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2/1049/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}
> HFileOutputFormat2 ClassCastException with s3 magic committer
> -------------------------------------------------------------
>
> Key: HBASE-28459
> URL: https://issues.apache.org/jira/browse/HBASE-28459
> Project: HBase
> Issue Type: Bug
> Reporter: Bryan Beaudreault
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.4.18, 2.7.0, 3.0.0-beta-2, 2.6.1, 2.5.9
>
>
> In hadoop3 there's the s3 magic committer which can speed up s3 writes
> dramatically. In HFileOutputFormat2.createRecordWriter we cast the passed in
> committer as a FileOutputCommitter. This causes a class cast exception when
> the s3 magic committer is enabled:
>
> {code:java}
> Error: java.lang.ClassCastException: class
> org.apache.hadoop.fs.s3a.commit.magic.MagicS3GuardCommitter cannot be cast to
> class org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter {code}
>
> We can cast to PathOutputCommitter instead, but its only available in
> hadoop3+. So we will need to use reflection to work around this in branch-2.
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