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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-753) Can't replace the data of a particular table by copying its files on HDFS
Date Mon, 21 Jul 2008 20:17:32 GMT

    [ https://issues.apache.org/jira/browse/HBASE-753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12615400#action_12615400

stack commented on HBASE-753:

Sebastien:  Can we close this as won't fix or should we instead migrate this issue to be a
feature request?  "Make it so can copy tables in hdfs"?

> Can't replace the data of a particular table by copying its files on HDFS
> -------------------------------------------------------------------------
>                 Key: HBASE-753
>                 URL: https://issues.apache.org/jira/browse/HBASE-753
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.2.0
>            Reporter: Sebastien Rainville
>            Priority: Minor
> I have 2 instances of hbase running. One is *production* and the other one is *development*.
I want to be able to replace the content of a table (not all of them) in development by the
content in production. Both of my environments are running hbase-trunk (a snapshot of july
9th). In hbase-0.1.x we used to be able to do that by simply stopping both hbases, copying
the files of the required table directly from one HDFS to the other and then restart hbase.
> It doesn't work anymore. In hbase shell I do see the table but it's empty.
> There are no errors. I looked at the master's log and the regionservers logs as well,
all in DEBUG mode... but I saw nothing interesting. I do see that the regions for that table
are being assigned. So, if there's more than 1 region it means that it knows that the table
isn't empty.
> So, I have to copy all the tables and then it's fine. It's not practical though.
> My guess is that .META. is holding old information about that table that doesn't get
updated when I replace the table's data.

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