You are viewing a plain text version of this content. The canonical link for it is here.
Posted to user@cassandra.apache.org by Jayapandian Ponraj <pa...@gmail.com> on 2015/06/17 13:35:58 UTC
Minor compaction not triggered
Hi
I have a cassandra cluster of 6 nodes, with DateTiered compaction for
the tables/CFs
For some reason the minor compaction never happens.
I have enabled debug logging and I don't see any debug logs related to
compaction like the following
https://github.com/apache/cassandra/blob/cassandra-2.0/src/java/org/apache/cassandra/db/compaction/CompactionManager.java#L150
https://github.com/apache/cassandra/blob/cassandra-2.0/src/java/org/apache/cassandra/db/compaction/DateTieredCompactionStrategy.java#L127
As a result of no compactions, now the cluster has more than 50K
SStables per node.
How do i debug this issue further?
Appreciate any help..
Re: Minor compaction not triggered
Posted by Jayapandian Ponraj <pa...@gmail.com>.
Hi,
Curently the cluster runs 2.0.14 on all nodes, will try to upgrade to 2.0.15
The issue is in all the nodes..
simple restart as in a rolling restart of all the nodes?
On 18 June 2015 at 15:18, Alain RODRIGUEZ <ar...@gmail.com> wrote:
> Hi,
>
> From what I read there are some issue using DTCS. You should probably go to
> the last minor version.
>
> You should also give more context so people can help. Have you tried a
> simple restart ? Does it happen on all your nodes ?
>
> C*heers,
>
> Alain
>
> 2015-06-18 11:42 GMT+02:00 Jayapandian Ponraj <pa...@gmail.com>:
>>
>> Can anyone guide me with any pointers plz
>>
>> On 17 June 2015 at 17:05, Jayapandian Ponraj <pa...@gmail.com> wrote:
>> > Hi
>> >
>> > I have a cassandra cluster of 6 nodes, with DateTiered compaction for
>> > the tables/CFs
>> > For some reason the minor compaction never happens.
>> > I have enabled debug logging and I don't see any debug logs related to
>> > compaction like the following
>> >
>> >
>> > https://github.com/apache/cassandra/blob/cassandra-2.0/src/java/org/apache/cassandra/db/compaction/CompactionManager.java#L150
>> >
>> > https://github.com/apache/cassandra/blob/cassandra-2.0/src/java/org/apache/cassandra/db/compaction/DateTieredCompactionStrategy.java#L127
>> >
>> > As a result of no compactions, now the cluster has more than 50K
>> > SStables per node.
>> > How do i debug this issue further?
>> > Appreciate any help..
>
>
Re: Minor compaction not triggered
Posted by Alain RODRIGUEZ <ar...@gmail.com>.
Hi,
>From what I read there are some issue using DTCS. You should probably go to
the last minor version.
You should also give more context so people can help. Have you tried a
simple restart ? Does it happen on all your nodes ?
C*heers,
Alain
2015-06-18 11:42 GMT+02:00 Jayapandian Ponraj <pa...@gmail.com>:
> Can anyone guide me with any pointers plz
>
> On 17 June 2015 at 17:05, Jayapandian Ponraj <pa...@gmail.com> wrote:
> > Hi
> >
> > I have a cassandra cluster of 6 nodes, with DateTiered compaction for
> > the tables/CFs
> > For some reason the minor compaction never happens.
> > I have enabled debug logging and I don't see any debug logs related to
> > compaction like the following
> >
> >
> https://github.com/apache/cassandra/blob/cassandra-2.0/src/java/org/apache/cassandra/db/compaction/CompactionManager.java#L150
> >
> https://github.com/apache/cassandra/blob/cassandra-2.0/src/java/org/apache/cassandra/db/compaction/DateTieredCompactionStrategy.java#L127
> >
> > As a result of no compactions, now the cluster has more than 50K
> > SStables per node.
> > How do i debug this issue further?
> > Appreciate any help..
>
Re: Minor compaction not triggered
Posted by Jayapandian Ponraj <pa...@gmail.com>.
Can anyone guide me with any pointers plz
On 17 June 2015 at 17:05, Jayapandian Ponraj <pa...@gmail.com> wrote:
> Hi
>
> I have a cassandra cluster of 6 nodes, with DateTiered compaction for
> the tables/CFs
> For some reason the minor compaction never happens.
> I have enabled debug logging and I don't see any debug logs related to
> compaction like the following
>
> https://github.com/apache/cassandra/blob/cassandra-2.0/src/java/org/apache/cassandra/db/compaction/CompactionManager.java#L150
> https://github.com/apache/cassandra/blob/cassandra-2.0/src/java/org/apache/cassandra/db/compaction/DateTieredCompactionStrategy.java#L127
>
> As a result of no compactions, now the cluster has more than 50K
> SStables per node.
> How do i debug this issue further?
> Appreciate any help..