MemStore-Local Allocation Buffers in cassandra?

[Héctor Izquierdo Seliva <iz...@strands.com>]

Hi everybody. I stumbled this morning upon this excellent blog post [1]
from the cloudera guys in which they explain how they changed the way
the memstore allocates memory to reduce fragmentation, and thus
stop-the-world garbage collections. Speaking from ignorance, memstore
sounds like memtables in cassandra. Could this technique be applied in
cassandra too?

Regards

Hector Izquierdo



[1] http://is.gd/mx6spG

Re: MemStore-Local Allocation Buffers in cassandra?

[Héctor Izquierdo Seliva <iz...@strands.com>]

> 2011/3/8 Héctor Izquierdo Seliva <iz...@strands.com>
> 
> > Hi everybody. I stumbled this morning upon this excellent blog post [1]
> > from the cloudera guys in which they explain how they changed the way
> > the memstore allocates memory to reduce fragmentation, and thus
> > stop-the-world garbage collections. Speaking from ignorance, memstore
> > sounds like memtables in cassandra. Could this technique be applied in
> > cassandra too?
> >
> 
> Yes, see https://issues.apache.org/jira/browse/CASSANDRA-2252
Thanks for the info! I'm glad to see you guys are already working on it.

Regards

> 
> >
> > Regards
> >
> > Hector Izquierdo
> >
> >
> >
> > [1] http://is.gd/mx6spG
> >
> >

Re: MemStore-Local Allocation Buffers in cassandra?

[Sylvain Lebresne <sy...@datastax.com>]

2011/3/8 Héctor Izquierdo Seliva <iz...@strands.com>

> Hi everybody. I stumbled this morning upon this excellent blog post [1]
> from the cloudera guys in which they explain how they changed the way
> the memstore allocates memory to reduce fragmentation, and thus
> stop-the-world garbage collections. Speaking from ignorance, memstore
> sounds like memtables in cassandra. Could this technique be applied in
> cassandra too?
>

Yes, see https://issues.apache.org/jira/browse/CASSANDRA-2252


>
> Regards
>
> Hector Izquierdo
>
>
>
> [1] http://is.gd/mx6spG
>
>