hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1112) we will lose data if the table name happens to be the logs' dir name
Date Mon, 26 Jan 2009 21:23:59 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1112?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12667436#action_12667436

stack commented on HBASE-1112:

I like this change also because it cleans up our root dir moving the logs into a subdir --
a cluster of 100 could have 64 max each -- thats 6400 logs at toplevel  (We'll need to have
a migration that screams if logs exist at rootdir)

> we will lose data if the table name happens to be the logs' dir name
> --------------------------------------------------------------------
>                 Key: HBASE-1112
>                 URL: https://issues.apache.org/jira/browse/HBASE-1112
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: Samuel Guo
>            Priority: Minor
>             Fix For: 0.20.0
>         Attachments: HBASE-1112.patch
> If the tablename happens to equal with the logs' dir name of a certain regionserver,
the table will store table's data into the same dir in HDFS shared with the regionserver's
log dir. If the specified region server fails, the dir may be removed after the logs are replayed.
And here, we lose the data.
> I suggest that a special char like '_' could be added before the logdir's name, just
as what root region and meta region have done. So we can prevent the user table's data from
being stored in a log dir. for example, 'log_10.132.15.1_1231465024534_60020' will be changed
to '_log_10.132.15.1_1231465024534_60020'.

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

View raw message