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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Monitoring compaction
Date Thu, 03 Jun 2010 06:11:34 GMT
Sure, patching CM stats into nodetool is fine.

On Tue, Jun 1, 2010 at 9:50 AM, Ian Soboroff <isoboroff@gmail.com> wrote:
> Regarding compaction thresholds... the BMT example says to set the threshold
> to 0 during an import.  Is this advisable during any bulk import (say using
> batch mutations or just lots and lots of thrift inserts)?
>
> Also, when I asked "are folks open to..." I meant that I'm happy to code a
> patch if anyone's interested.
> Ian
>
> On Tue, Jun 1, 2010 at 12:41 PM, Ian Soboroff <isoboroff@gmail.com> wrote:
>>
>> Thanks.  Are folks open to exposing this via nodetool?  I've been trying
>> to figure out a decent way to aggregate and expose all this information that
>> is easier than nodetool and less noisy than nagios... suggestions
>> appreciated.
>>
>> (My cluster only exposes a master node and everything else is private, so
>> running a pile of jconsoles is not even possible...)
>>
>> Ian
>>
>> On Tue, Jun 1, 2010 at 12:33 PM, Dylan Egan / WildfireApp.com
>> <dylan.egan@wildfireapp.com> wrote:
>>>
>>> Hi Ian,
>>>
>>> On Tue, Jun 1, 2010 at 9:27 AM, Ian Soboroff <isoboroff@gmail.com> wrote:
>>> > Are stats exposed over JMX for compaction?
>>>
>>> You can view them via the
>>> org.apache.cassandra.db:type=CompactionManager MBean. The PendingTasks
>>> attribute might suit you best.
>>>
>>> Cheers,
>>>
>>> Dylan.
>>
>
>



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com

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