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Zhihong Ted Yu commented on HBASE-5547: --------------------------------------- bq. Because the cleaner chain works, the TTL cleaner works (both of which are tested) and the zk archiver cleaner works, we can then say that they work together. If some user encounters the scenario shown in existing TestZooKeeperTableArchiveClient#testMultipleTables and asked us on mailing list, can we go with the above answer ? > 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.addendum-v1, 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. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira