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From Watanabe Maki <watanabe.m...@gmail.com>
Subject Re: Regarding nodetool tpstats
Date Mon, 26 Mar 2012 00:55:55 GMT
> - InternalResponseStage

Handles response to non client initiated messages, including bootstrap, schema check, etc.

maki


On 2012/03/26, at 2:18, aaron morton <aaron@thelastpickle.com> wrote:

> Work is broken up into a series of stages. 
> 
> - ReadStage - performing a local read. 
> - RequestResponseStage - handling responses from other nodes. 
> - MutationStage - performing a local write.
> - ReplicateOnWriteStage - for counter writes, replicates after a local write
> - GossipStage - handles gossip rounds (ever second)
> - AntiEntropyStage - repairs consistency (nodetool reapir)
> - MigrationStage - schema changes
> - MemtablePostFlusher - flush commit log (and other things) after flushing memtable.
 
> - StreamStage - streams data between nodes during repair
> - FlushWrite - Flush memtable to disk
> - MiscStage - does misc stuff
> - InternalResponseStage - not sure.
> - HintedHandoff - sends missed mutations to other nodes. 
> 
> Cheers
> 
> -----------------
> Aaron Morton
> Freelance Developer
> @aaronmorton
> http://www.thelastpickle.com
> 
> On 23/03/2012, at 9:49 PM, Rishabh Agrawal wrote:
> 
>> Hello
>> I am new to Cassandra and when I run tpstats on my node (Cassandra 1.0.7) I get following
output:
>>  
>> Pool Name                    Active   Pending      Completed   Blocked  All time
blocked
>> ReadStage                         0         0             12         0          
      0
>> RequestResponseStage              0         0             20         0          
      0
>> MutationStage                     0         0             14         0          
      0
>> ReadRepairStage                   0         0             14         0          
      0
>> ReplicateOnWriteStage             0         0              0         0          
      0
>> GossipStage                       0         0         273665         0          
      0
>> AntiEntropyStage                  0         0              0         0          
      0
>> MigrationStage                    0         0            119         0          
      0
>> MemtablePostFlusher               0         0             13         0          
      0
>> StreamStage                       0         0              0         0          
      0
>> FlushWriter                       0         0             13         0          
      0
>> MiscStage                         0         0              0         0          
      0
>> InternalResponseStage             0         0            318         0          
      0
>> HintedHandoff                     0         0              2         0          
      0
>>  
>> Can anyone help with what each pool name stands for?
>>  
>> Thanks and Regards
>> Rishabh Agrawal
>> 
>> 
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