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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Why so many commitlogs ?
Date Wed, 07 Jul 2010 15:58:28 GMT
number of memtables waiting to flush has a pretty low bound (# of data
file directories in 0.6.3)

did you check your log for exceptions?

On Wed, Jul 7, 2010 at 10:35 AM, Anty <anty.rao@gmail.com> wrote:
> yes, i know. I only insert records into one CF.
>
> when a memtable flush complete, commitlog  will check if there are some
> obsolete commitlog segments.
> I don't known why there are so many commitlog file out there.
> is there a possibility that too many memtables is waiting for flushing,
> which prevent many commitlog files from  being removed.
>
> On Wed, Jul 7, 2010 at 10:13 PM, Jonathan Ellis <jbellis@gmail.com> wrote:
>>
>> commitlogs can be removed after _all_ the CFs they have data for have
>> been flushed.
>>
>> On Wed, Jul 7, 2010 at 5:21 AM, Anty <anty.rao@gmail.com> wrote:
>> > Hi:all
>> > In my little cluter ,after i insert many many records into cassandra,
>> > there
>> > are hundreds of commit log files in commitlog log directory.
>> > is it normal ?
>> > I read the source code of commitlog , there shouldn't be so many
>> > commitlog
>> > log files .
>> > any clue will be appreciate.
>> >
>> > --
>> > Best Regards
>> > Anty Rao
>> >
>>
>>
>>
>> --
>> Jonathan Ellis
>> Project Chair, Apache Cassandra
>> co-founder of Riptano, the source for professional Cassandra support
>> http://riptano.com
>
>
>
> --
> Best Regards
> Anty Rao
>



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com

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