incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Igor Katkov <ikat...@gmail.com>
Subject Re: commit logs are not deleted
Date Sun, 27 Sep 2009 15:39:35 GMT
yes, long enough.
here is a typical log line from CommitLog.java

DEBUG [COMMIT-LOG-WRITER] 2009-09-27 11:12:38,646 CommitLog.java (line 469)
discard completed log segments for
CommitLogContext(file='c:/cassandra-4rc/data/commitlog\CommitLog-1254064318865.log',
position=67321599), column family 0. CFIDs are BenchMarkApp:
TableMetadata(Channels: 0, }), system: TableMetadata(LocationInfo: 1,
HintsColumnFamily: 2, }), }


On Sun, Sep 27, 2009 at 8:49 AM, Jonathan Ellis <jbellis@gmail.com> wrote:

> Did you let it run long enough to flush the LocationInfo CF?  Should
> try every 5 minutes.
>
> On Sun, Sep 27, 2009 at 12:03 AM, Igor Katkov <ikatkov@gmail.com> wrote:
> > I applied the patch, logs segments are still not deleted
> > but at least with this extra logging I found something - it says "Not
> safe
> > to delete commit log
> > c:/cassandra-4rc/data/commitlog\CommitLog-1254027292143.log; dirty is 1"
> > please see log snippet below, I grepped all lines that contain
> > "1254027292143"
> > full log 1Mb zipped is here
> http://www.katkovonline.com/cassandra-log.zip
> >
> >
> > DEBUG [COMMIT-LOG-WRITER] 2009-09-27 00:54:54,817 CommitLog.java (line
> 469)
> > discard completed log segments for
> >
> CommitLogContext(file='c:/cassandra-4rc/data/commitlog\CommitLog-1254027292143.log',
> > position=708751), column family 0. CFIDs are BenchMarkApp:
> > TableMetadata(Channels: 0, }), system: TableMetadata(LocationInfo: 1,
> > HintsColumnFamily: 2, }), }
> > DEBUG [COMMIT-LOG-WRITER] 2009-09-27 00:54:54,817 CommitLog.java (line
> 520)
> > Marking replay position on current commit log
> > c:/cassandra-4rc/data/commitlog\CommitLog-1254027292143.log
> > DEBUG [COMMIT-LOG-WRITER] 2009-09-27 00:54:58,680 CommitLog.java (line
> 469)
> > discard completed log segments for
> >
> CommitLogContext(file='c:/cassandra-4rc/data/commitlog\CommitLog-1254027292143.log',
> > position=68030159), column family 0. CFIDs are BenchMarkApp:
> > TableMetadata(Channels: 0, }), system: TableMetadata(LocationInfo: 1,
> > HintsColumnFamily: 2, }), }
> > DEBUG [COMMIT-LOG-WRITER] 2009-09-27 00:54:58,680 CommitLog.java (line
> 520)
> > Marking replay position on current commit log
> > c:/cassandra-4rc/data/commitlog\CommitLog-1254027292143.log
> > DEBUG [COMMIT-LOG-WRITER] 2009-09-27 00:55:01,120 CommitLog.java (line
> 540)
> > Not safe to delete commit log
> > c:/cassandra-4rc/data/commitlog\CommitLog-1254027292143.log; dirty is 1,
> > DEBUG [COMMIT-LOG-WRITER] 2009-09-27 00:55:02,715 CommitLog.java (line
> 540)
> > Not safe to delete commit log
> > c:/cassandra-4rc/data/commitlog\CommitLog-1254027292143.log; dirty is 1,
> > DEBUG [COMMIT-LOG-WRITER] 2009-09-27 00:55:05,030 CommitLog.java (line
> 540)
> > Not safe to delete commit log
> > c:/cassandra-4rc/data/commitlog\CommitLog-1254027292143.log; dirty is 1,
> > ...
> >
> >
> > P.S.
> > OS: Windows server 2003
> >
> > On Sat, Sep 26, 2009 at 2:50 PM, Jonathan Ellis <jbellis@gmail.com>
> wrote:
> >>
> >> Patch 0001 on https://issues.apache.org/jira/browse/CASSANDRA-459
> >> fixes another bug that could cause this.
> >>
> >> On Fri, Sep 25, 2009 at 11:55 PM, Igor Katkov <ikatkov@gmail.com>
> wrote:
> >> > I checked out and built 0.4 branch. It's all the same, files stays.
> >> > I also noticed a side effect - as number of commit log segments is
> >> > growing, server response time is also growing.
> >> > I assume this is because Cassandra now has to read through some these
> >> > files on reach read/write request
> >> >
> >> >
> >> > On Fri, Sep 25, 2009 at 4:53 PM, Jonathan Ellis <jbellis@gmail.com>
> >> > wrote:
> >> >> This is fixed on the 0.4 branch (but not in trunk, yet)
> >> >>
> >> >> On Fri, Sep 25, 2009 at 1:57 PM, Jonathan Ellis <jbellis@gmail.com>
> >> >> wrote:
> >> >>> https://issues.apache.org/jira/browse/CASSANDRA-455 will address
> >> >>> FlushPeriod not working.
> >> >>>
> >> >>> On Fri, Sep 25, 2009 at 1:33 PM, Igor Katkov <ikatkov@gmail.com>
> >> >>> wrote:
> >> >>>> I tried latest stable version 0.3 and commit logs segments
are in
> >> >>>> fact deleted.
> >> >>>> Tried it again on 0.4 set  periodic flush to 1min
> >> >>>> (FlushPeriodInMinutes="1") => it's all the same, files remains
> there
> >> >>>> forever.
> >> >>>>
> >> >>>> I also noticed that there are other implicit CFs, can these
prevent
> >> >>>> logs from being deleted?
> >> >>>> DEBUG - adding Channels as 0
> >> >>>> DEBUG - adding LocationInfo as 1
> >> >>>> DEBUG - adding HintsColumnFamily as 2
> >> >>>>
> >> >>>> On Thu, Sep 24, 2009 at 11:07 PM, Igor Katkov <ikatkov@gmail.com>
> >> >>>> wrote:
> >> >>>>> in my case commit log segments are never deleted (unless
I restart
> >> >>>>> the server)
> >> >>>>> so they grow and grow and eventually hosts is running out
of
> space.
> >> >>>>>
> >> >>>>> Any ideas how to fix it?
> >
> >
>

Mime
View raw message