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https://issues.apache.org/jira/browse/HBASE-22539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16900270#comment-16900270
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Hudson commented on HBASE-22539:
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Results for branch branch-2.0
[build #1830 on
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.0/1830/]:
(/) *{color:green}+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-2.0/1830//General_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-2.0/1830//JDK8_Nightly_Build_Report_(Hadoop2)/]
(/) {color:green}+1 jdk8 hadoop3 checks{color}
-- For more information [see jdk8 (hadoop3)
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.0/1830//JDK8_Nightly_Build_Report_(Hadoop3)/]
(/) {color:green}+1 source release artifact{color}
-- See build output for details.
> WAL corruption due to early DBBs re-use when Durability.ASYNC_WAL is used
> -------------------------------------------------------------------------
>
> Key: HBASE-22539
> URL: https://issues.apache.org/jira/browse/HBASE-22539
> Project: HBase
> Issue Type: Bug
> Components: rpc, wal
> Affects Versions: 2.2.0, 2.0.5, 2.1.5
> Reporter: Wellington Chevreuil
> Assignee: Duo Zhang
> Priority: Blocker
> Fix For: 3.0.0, 2.3.0, 2.0.6, 2.2.1, 2.1.6
>
> Attachments: HBASE-22539-UT.patch, HBASE-22539.branch-2.001.patch
>
>
> Summary
> We had been chasing a WAL corruption issue reported on one of our customers
> deployments running release 2.1.1 (CDH 6.1.0). After providing a custom
> modified jar with the extra sanity checks implemented by HBASE-21401 applied
> on some code points, plus additional debugging messages, we believe it is
> related to DirectByteBuffer usage, and Unsafe copy from offheap memory to
> on-heap array triggered
> [here|https://github.com/apache/hbase/blob/branch-2.1/hbase-common/src/main/java/org/apache/hadoop/hbase/util/ByteBufferUtils.java#L1157],
> such as when writing into a non ByteBufferWriter type, as done
> [here|https://github.com/apache/hbase/blob/branch-2.1/hbase-common/src/main/java/org/apache/hadoop/hbase/io/ByteBufferWriterOutputStream.java#L84].
> More details on the following comment.
>
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