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https://issues.apache.org/jira/browse/HADOOP-18039?focusedWorklogId=692792&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-692792
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ASF GitHub Bot logged work on HADOOP-18039:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 08/Dec/21 18:42
Start Date: 08/Dec/21 18:42
Worklog Time Spent: 10m
Work Description: virajjasani commented on a change in pull request #3768:
URL: https://github.com/apache/hadoop/pull/3768#discussion_r765137142
##########
File path: hadoop-project/pom.xml
##########
@@ -2428,9 +2428,10 @@
</activation>
<properties>
<hbase.version>${hbase.two.version}</hbase.version>
-
<hbase-compatible-hadoop.version>3.0.0</hbase-compatible-hadoop.version>
+
<hbase-compatible-hadoop.version>2.8.5</hbase-compatible-hadoop.version>
Review comment:
Valid question. The earlier hbase version 2.0 is not only not so stable
but also it just worked with Hadoop 3 version magically but as we upgrade HBase
2.x versions, they won't work by default with Hadoop 3 because as of today,
hbase has only published hadoop 2 compatible hbase 2 artifacts by default. If
we want to make hbase 2 work with hadoop 3, first we need to compile hbase 2
with hadoop-3.0 profile, only then we get hadoop 3 compatible hbase 2 jars.
Hence, we should have anyways kept `hbase-compatible-hadoop.version` on
Hadoop's 2.x release line but somehow we didn't and this worked with HBase 2.0.
I have provided detailed explanation of this also on HADOOP-17668. Comment
[here](https://issues.apache.org/jira/browse/HADOOP-17668?focusedCommentId=17454172&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-17454172)
(hope I covered the right link, Jira interface seems to have been updated
recently)
And yes @jojochuang's review would also be great, thanks for the reminder
(my bad, I missed).
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Issue Time Tracking
-------------------
Worklog Id: (was: 692792)
Time Spent: 50m (was: 40m)
> Upgrade hbase2 version and fix TestTimelineWriterHBaseDown
> ----------------------------------------------------------
>
> Key: HADOOP-18039
> URL: https://issues.apache.org/jira/browse/HADOOP-18039
> Project: Hadoop Common
> Issue Type: Sub-task
> Reporter: Viraj Jasani
> Assignee: Viraj Jasani
> Priority: Major
> Labels: pull-request-available
> Time Spent: 50m
> Remaining Estimate: 0h
>
> As mentioned on the parent Jira, we can't upgrade hbase2 profile version
> beyond 2.2.4 until we either have hbase 2 artifacts available that are built
> with hadoop 3 profile by default or hbase 3 is rolled out (hbase 3 is
> compatible with hadoop 3 versions only).
> Let's upgrade hbase2 profile version to 2.2.4 as part of this Jira and also
> fix TestTimelineWriterHBaseDown to create connection only after mini cluster
> is up.
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