Re: compaction_throughput_mb_per_sec

2016-01-05 Thread Ken Hancock
As to why I think it's cluster-wide, here's what the documentation says: https://docs.datastax.com/en/cassandra/1.2/cassandra/configuration/configCassandra_yaml_r.html compaction_throughput_mb_per_sec <https://docs.datastax.com/en/cassandra/1.2/cassandra/configuration/configCassandra_yaml_r.h

Re: compaction_throughput_mb_per_sec

2016-01-05 Thread Robert Coli
On Tue, Jan 5, 2016 at 6:50 AM, Ken Hancock wrote: > As to why I think it's cluster-wide, here's what the documentation says: > Do you see "system" used in place of "cluster" anywhere else in the docs? I think you are correct that the docs should standardize on

Re: compaction_throughput_mb_per_sec

2016-01-05 Thread Ken Hancock
Will do. I searched the doc for additional usage of the term "system" commitlog_segment_size_in_mb refers to "every table in the system" concurrent_writes talks about CPU cores "in your system" That's it for "system" other than the compaction_throu

Re: compaction_throughput_mb_per_sec

2016-01-05 Thread Jack Krupansky
<ken.hanc...@schange.com> wrote: > As to why I think it's cluster-wide, here's what the documentation says: > > > https://docs.datastax.com/en/cassandra/1.2/cassandra/configuration/configCassandra_yaml_r.html > compaction_throughput_mb_per_sec > <https://docs.datastax.com

Re: compaction_throughput_mb_per_sec

2016-01-04 Thread Carl Yeksigian
This is set in the cassandra.yaml on each node independently; it doesn't have to be same cluster-wide. On Mon, Jan 4, 2016 at 3:59 PM, Ken Hancock wrote: > I was surprised the other day to discover that this was a cluster-wide > setting. Why does that make sense? > >

Re: compaction_throughput_mb_per_sec

2016-01-04 Thread Jeff Jirsa
ndra.apache.org" Subject: compaction_throughput_mb_per_sec I was surprised the other day to discover that this was a cluster-wide setting. Why does that make sense? In a heterogeneous cassandra deployment, say I have some old servers running spinning disks and I'm bringing on more nodes

Re: compaction_throughput_mb_per_sec

2016-01-04 Thread Nate McCall
> >> Also, as I increase my node count, I technically also have to increase my >> compaction_throughput which would require a rolling restart across the >> cluster. >> >> > You can set compaction throughput on each node dynamically via nodetool > setcompactionthroughput. > > > Also, the IOPS

Re: compaction_throughput_mb_per_sec

2016-01-04 Thread Nate McCall
> > > Also, as I increase my node count, I technically also have to increase my > compaction_throughput which would require a rolling restart across the > cluster. > > You can set compaction throughput on each node dynamically via nodetool setcompactionthroughput. -- - Nate