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Posted to user@cassandra.apache.org by David Hawthorne <dh...@gmx.3crowd.com> on 2011/08/31 22:59:44 UTC
nodetool tpstats feature request
It would be very useful to be able to get refreshing statistics from tpstats, a la top.
nodetool -h localhost tpstats [n]
refresh every second, show me the Active and Pending and Blocked columns as they currently exist, but under Completed show me a per-second rate based on the delta from the previous counter and the number of seconds (n) specified on the command line.
nodetool -h localhost tpstats 1 to update every second
nodetool -h localhost tpstats 5 to update every 5 seconds, etc
Re: nodetool tpstats feature request
Posted by David Hawthorne <dh...@gmx.3crowd.com>.
watch doesn't calculate diffs
On Aug 31, 2011, at 2:29 PM, Peter Sanford wrote:
> I use `watch` to do this:
>
> watch -n 5 nodetool -h localhost tpstats
>
> -psanford
>
> On Wed, Aug 31, 2011 at 1:59 PM, David Hawthorne <dh...@gmx.3crowd.com> wrote:
>> It would be very useful to be able to get refreshing statistics from tpstats, a la top.
>>
>> nodetool -h localhost tpstats [n]
>>
>> refresh every second, show me the Active and Pending and Blocked columns as they currently exist, but under Completed show me a per-second rate based on the delta from the previous counter and the number of seconds (n) specified on the command line.
>>
>> nodetool -h localhost tpstats 1 to update every second
>> nodetool -h localhost tpstats 5 to update every 5 seconds, etc
Re: nodetool tpstats feature request
Posted by Peter Sanford <ps...@nearbuysystems.com>.
I use `watch` to do this:
watch -n 5 nodetool -h localhost tpstats
-psanford
On Wed, Aug 31, 2011 at 1:59 PM, David Hawthorne <dh...@gmx.3crowd.com> wrote:
> It would be very useful to be able to get refreshing statistics from tpstats, a la top.
>
> nodetool -h localhost tpstats [n]
>
> refresh every second, show me the Active and Pending and Blocked columns as they currently exist, but under Completed show me a per-second rate based on the delta from the previous counter and the number of seconds (n) specified on the command line.
>
> nodetool -h localhost tpstats 1 to update every second
> nodetool -h localhost tpstats 5 to update every 5 seconds, etc