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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10591) Sanity check table configuration in createTable
Date Mon, 24 Feb 2014 04:59:21 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13910022#comment-13910022
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Lars Hofhansl commented on HBASE-10591:
---------------------------------------

The limits look fine to me. The only place where we might violate those are our own tests
(small region sizes for many splits, etc).

Should we limit the valid BLOCKSIZE too? I heard quite often that folks mix HFile BLOCKSIZE
and HDFS block size. Should we limit the BLOCKSIZE to 1KB <= BLOCKSIZE <= 1MB? Or maybe
1KB <= BLOCKSIZE <= 10MB?


> Sanity check table configuration in createTable
> -----------------------------------------------
>
>                 Key: HBASE-10591
>                 URL: https://issues.apache.org/jira/browse/HBASE-10591
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>             Fix For: 0.99.0
>
>         Attachments: hbase-10591_v1.patch
>
>
> We had a cluster completely become unoperational, because a couple of table was erroneously
created with MAX_FILESIZE set to 4K, which resulted in 180K regions in a short interval, and
bringing the master down due to  HBASE-4246.
> We can do some sanity checking in master.createTable() and reject the requests. We already
check the compression there, so it seems a good place. Alter table should also check for this
as well.



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