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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: commit logs are not deleted
Date Tue, 29 Sep 2009 03:25:32 GMT
Right, but the corollary is that then you have to scan all the
commitlog segment headers when flushing an empty memtable.  I think
the cure is potentially worse than the disease there.

On Mon, Sep 28, 2009 at 10:21 PM, Jun Rao <junrao@almaden.ibm.com> wrote:
> A solution to this problem is to still call discardCompletedSegments() when
> flushing an empty memtable.
>
> Jun
> IBM Almaden Research Center
> K55/B1, 650 Harry Road, San Jose, CA 95120-6099
>
> junrao@almaden.ibm.com
>
>
> Igor Katkov <ikatkov@gmail.com> wrote on 09/28/2009 04:32:06 PM:
>
>> [image removed]
>>
>> Re: commit logs are not deleted
>>
>> Igor Katkov
>>
>> to:
>>
>> cassandra-user
>>
>> 09/28/2009 04:33 PM
>>
>> Please respond to cassandra-user
>
>>
>> Excellent! Many thanks.
>>
>> It works, but there is a minor thing:
>> the very first created commit log segment does not get deleted.
>> Log if filled with lines like
>> Not safe to delete commit log d:/cassandra-4/data/commitlog
>> \CommitLog-1254177667321.log; dirty is 1,
>>
>
>> On Mon, Sep 28, 2009 at 5:21 PM, Jonathan Ellis <jbellis@gmail.com> wrote:
>> I have a fix now at
>> https://issues.apache.org/jira/browse/CASSANDRA-459 -- only applies to
>> current trunk.  When Jun finishes reviewing I will backport to 0.4.
>>
>> Sorry for the wait,
>>
>> -Jonathan
>>
>> On Mon, Sep 28, 2009 at 2:40 PM, Igor Katkov <ikatkov@gmail.com> wrote:
>> > Does anyone else has the same problem with 0.4?
>> > As far as I know Digg and Rackspace are biggest adopters of Cassandra.
>> > They
>> > must be running 0.3 then.
>> >
>> >
>> > On Sun, Sep 27, 2009 at 12:20 PM, Igor Katkov <ikatkov@gmail.com> wrote:
>> >>
>> >> full log is here (new)
>> >> http://www.katkovonline.com/cassandra-log.zip
>> >>
>> >> On Sun, Sep 27, 2009 at 12:18 PM, Igor Katkov <ikatkov@gmail.com>
>> >> wrote:
>> >>>
>> >>> There is no log lines with "column family 1"
>> >>> There are only "column family 0"
>> >>>
>> >>> On Sun, Sep 27, 2009 at 12:02 PM, Jonathan Ellis <jbellis@gmail.com>
>> >>> wrote:
>> >>>>
>> >>>> we're looking for "column family 1"
>> >>>>
>> >
>> >

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