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https://issues.apache.org/jira/browse/HBASE-5547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13420233#comment-13420233
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Zhihong Ted Yu commented on HBASE-5547:
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bq. we don't have to worry about interaction with the TTLCleaner.
Users may choose to enable the combination of cleaners shown in the current
TestZooKeeperTableArchiveClient.
We should verify that this combination works.
>From
>https://builds.apache.org/view/G-L/view/HBase/job/HBase-TRUNK-on-Hadoop-2.0.0/lastCompletedBuild/testReport/org.apache.hadoop.hbase.backup.example/TestZooKeeperTableArchiveClient/testMultipleTables/,
> there is no NPE.
I used the following command to run the test:
mvn clean -Dhadoop.profile=2.0 test
-Dtest=TestZooKeeperTableArchiveClient#testMultipleTables
{code}
Failed tests:
testMultipleTables(org.apache.hadoop.hbase.backup.example.TestZooKeeperTableArchiveClient):
Archived HFiles should have gotten deleted, but didn't
{code}
The failure was due to IllegalArgumentException shown above.
> Don't delete HFiles when in "backup mode"
> -----------------------------------------
>
> Key: HBASE-5547
> URL: https://issues.apache.org/jira/browse/HBASE-5547
> Project: HBase
> Issue Type: New Feature
> Reporter: Lars Hofhansl
> Assignee: Jesse Yates
> Fix For: 0.96.0, 0.94.2
>
> Attachments: 5547-v12.txt, 5547-v16.txt, hbase-5447-v8.patch,
> hbase-5447-v8.patch, hbase-5547-v9.patch, java_HBASE-5547.addendum,
> java_HBASE-5547_v13.patch, java_HBASE-5547_v14.patch,
> java_HBASE-5547_v15.patch, java_HBASE-5547_v4.patch,
> java_HBASE-5547_v5.patch, java_HBASE-5547_v6.patch, java_HBASE-5547_v7.patch
>
>
> This came up in a discussion I had with Stack.
> It would be nice if HBase could be notified that a backup is in progress (via
> a znode for example) and in that case either:
> 1. rename HFiles to be delete to <file>.bck
> 2. rename the HFiles into a special directory
> 3. rename them to a general trash directory (which would not need to be tied
> to backup mode).
> That way it should be able to get a consistent backup based on HFiles (HDFS
> snapshots or hard links would be better options here, but we do not have
> those).
> #1 makes cleanup a bit harder.
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