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From Stack <st...@duboce.net>
Subject Re: Region "auto-split"
Date Mon, 11 Jul 2011 16:17:52 GMT
If you have an individual storefile > 256M and its not splitting
something is wrong.  Check the logs on the regionserver carrying your
single region.  See if any clue therein.

St.Ack


On Mon, Jul 11, 2011 at 5:54 AM, Michael Morello
<michael.morello@gmail.com> wrote:
> Hi,
>
> I use the default values, so hbase.hregion.max.filesize should be 256
> Mo as defined in HConstants.
>
> Regards,
>
> 2011/7/11 Zhoushuaifeng <zhoushuaifeng@huawei.com>:
>> What's your settings of this : hbase.hregion.max.filesize ?
>> If your setting is more than 1GB, and total size in the region less than this , your
region will not split.
>>
>
>> -----Original Message-----
>> From: Michael Morello [mailto:michael.morello@gmail.com]
>> Sent: Monday, July 11, 2011 8:28 PM
>> To: dev@hbase.apache.org
>> Subject: Region "auto-split"
>>
>> Hello,
>>
>> I'm testing the trunk revision of HBase and there is something that
>> seems strange to me regarding the "auto-split" region feature, here is
>> my test case :
>> I generate a lot of data with a simple client into a newly created
>> table with no predefined region. Everything is stored in the first
>> "default" region but this region is never splitted (I currently have a
>> region with a single file store of more than 1Go).
>>
>> It seems that it is the responsability of the MemStoreFlusher to call
>> the CompactSplitThread (line 359 of MemStoreFlusher) and schedule a
>> split, but this part is never called.
>> More precisely one of the condition that is expected to be true in
>> order to schedule a split is that isTooManyStoreFiles(region) is true,
>> this could never happen.
>>
>> Is it an expected behaviour or is it a known problem ?
>

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