hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jesse Yates (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5547) Don't delete HFiles when in "backup mode"
Date Sat, 21 Jul 2012 07:33:34 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13419756#comment-13419756
] 

Jesse Yates commented on HBASE-5547:
------------------------------------

bq. I find that deleteRegion() was addressed, but not deleteTable().

In the deletetablehandler, it first goes and deletes each region (which gets replaced with
archiveRegion) and then once all the regions have been archived, we call deleteTable, which
basically just "rm -rf"'s the entire directory.

TL;DR - hfiles on table delete are archived, but not any more information about the state
of the table. Wrote a unit test to check that too, so should be good.
                
> 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: 0.94.2
>
>         Attachments: 5547-v12.txt, 5547-v16.txt, hbase-5447-v8.patch, hbase-5447-v8.patch,
hbase-5547-v9.patch, 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

        

Mime
View raw message