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HBase >> mail # user >> Re: Checking major compaction


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kiran 2012-10-18, 06:33
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Ramkrishna.S.Vasudevan 2012-10-18, 08:34
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Ramkrishna.S.Vasudevan 2012-10-18, 09:25
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kiran 2012-10-18, 06:12
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Ramkrishna.S.Vasudevan 2012-10-18, 06:25
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kiran 2012-10-19, 15:37
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Kevin Odell 2012-10-19, 15:46
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kiran 2012-10-19, 16:10
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Re: Checking major compaction
You could just disable then enable the table.

J-D

On Fri, Oct 19, 2012 at 9:10 AM, kiran <[EMAIL PROTECTED]> wrote:
> Kevin,
>
> Thanks for your reply,
>
> can restarting region servers help to kill the already existing compaction
> processes in region servers..
>
> Thanks
> Kiran
>
> On Fri, Oct 19, 2012 at 9:16 PM, Kevin O'dell <[EMAIL PROTECTED]>wrote:
>
>> Kiran,
>>
>>   I don't believe you can.   If you have a sane region count/region size it
>> should be over soon.
>>
>> On Fri, Oct 19, 2012 at 11:37 AM, kiran <[EMAIL PROTECTED]>
>> wrote:
>>
>> > Hi all,
>> >
>> > I mistakenly execution major compaction on the entire table instead of
>> > region by region. It is causing so much delay in the write performance,
>> > also on the disk and networkI/O. How can i stop major compaction now ?
>> >
>> > Thanks
>> > Kiran
>> >
>> > On Thu, Oct 18, 2012 at 2:55 PM, Ramkrishna.S.Vasudevan <
>> > [EMAIL PROTECTED]> wrote:
>> >
>> > > >A simple test would be to just right some 10 rows
>> > > I meant to say write some 10 rows.(not right)
>> > >
>> > > Regards
>> > > Ram
>> > >
>> > > > -----Original Message-----
>> > > > From: Ramkrishna.S.Vasudevan [mailto:[EMAIL PROTECTED]
>> ]
>> > > > Sent: Thursday, October 18, 2012 2:05 PM
>> > > > To: [EMAIL PROTECTED]
>> > > > Subject: RE: Checking major compaction
>> > > >
>> > > > Hi
>> > > >
>> > > > Yes Kiran you can go thro the logs also.
>> > > >
>> > > > You will see some logs like
>> > > > 'Start major compaction for ..............
>> > > > 'Compacting file  ................
>> > > > 'Compacting file ................
>> > > > And finally 'Completed major/minor compaction.....'
>> > > >
>> > > > I just don have some exact logs with me right now.  But you can see
>> log
>> > > > msgs
>> > > > but all comes in debug mode.  So ensure you enable debug mode for
>> your
>> > > > logs.
>> > > >
>> > > > A simple test would be to just right some 10 rows. In between do
>> some 4
>> > > > to 5
>> > > > flushes.
>> > > >
>> > > > Just give major_compact(tableName) from the shell.   You can see the
>> > > > logs.
>> > > > :)
>> > > >
>> > > > Regards
>> > > > Ram
>> > > >
>> > > > > -----Original Message-----
>> > > > > From: kiran [mailto:[EMAIL PROTECTED]]
>> > > > > Sent: Thursday, October 18, 2012 12:03 PM
>> > > > > To: [EMAIL PROTECTED]
>> > > > > Subject: Re: Checking major compaction
>> > > > >
>> > > > > Thanks ram,
>> > > > >
>> > > > > Is there a way can I check it through region server logs. If it is
>> > > > > possible
>> > > > > what are the statements that I need to look for ??
>> > > > >
>> > > > > Thanks
>> > > > > Kiran
>> > > > >
>> > > > > On Thu, Oct 18, 2012 at 11:55 AM, Ramkrishna.S.Vasudevan <
>> > > > > [EMAIL PROTECTED]> wrote:
>> > > > >
>> > > > > > HBASE-6033 does the work that you ask for.  It is currently in
>> > > > Trunk
>> > > > > > version
>> > > > > > of HBase.
>> > > > > >
>> > > > > > Regards
>> > > > > > Ram
>> > > > > >
>> > > > > > > -----Original Message-----
>> > > > > > > From: kiran [mailto:[EMAIL PROTECTED]]
>> > > > > > > Sent: Thursday, October 18, 2012 11:43 AM
>> > > > > > > To: [EMAIL PROTECTED]
>> > > > > > > Subject: Checking major compaction
>> > > > > > >
>> > > > > > > Hi all,
>> > > > > > >
>> > > > > > > Is there a way to check if major compaction is running or not
>> on
>> > > > a
>> > > > > > > table.
>> > > > > > >
>> > > > > > > --
>> > > > > > > Thank you
>> > > > > > > Kiran Sarvabhotla
>> > > > > > >
>> > > > > > > -----Even a correct decision is wrong when it is taken late
>> > > > > >
>> > > > > >
>> > > > >
>> > > > >
>> > > > > --
>> > > > > Thank you
>> > > > > Kiran Sarvabhotla
>> > > > >
>> > > > > -----Even a correct decision is wrong when it is taken late
>> > >
>> > >
>> >
>> >
>> > --
>> > Thank you
>> > Kiran Sarvabhotla
>> >
>> > -----Even a correct decision is wrong when it is taken late
>> >
>>
>>
>>
>> --
>> Kevin O'Dell