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Posted to user@cassandra.apache.org by Rishabh Agrawal <ri...@impetus.co.in> on 2012/03/23 09:49:34 UTC
Regarding nodetool tpstats
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
________________________________
Impetus to sponsor and exhibit at Structure Data 2012, NY; Mar 21-22. Know more about our Big Data quick-start program at the event.
New Impetus webcast 'Cloud-enabled Performance Testing vis-?-vis On-premise' available at http://bit.ly/z6zT4L.
NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.
Re: Regarding nodetool tpstats
Posted by aaron morton <aa...@thelastpickle.com>.
Cheers :)
-----------------
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 26/03/2012, at 1:55 PM, Watanabe Maki wrote:
>> - InternalResponseStage
>
> Handles response to non client initiated messages, including bootstrap, schema check, etc.
>
> maki
>
>
> On 2012/03/26, at 2:18, aaron morton <aa...@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
>>>
>>>
>>> Impetus to sponsor and exhibit at Structure Data 2012, NY; Mar 21-22. Know more about our Big Data quick-start program at the event.
>>>
>>> New Impetus webcast ‘Cloud-enabled Performance Testing vis-à-vis On-premise’ available at http://bit.ly/z6zT4L.
>>>
>>>
>>> NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.
>>
Re: Regarding nodetool tpstats
Posted by Watanabe Maki <wa...@gmail.com>.
> - InternalResponseStage
Handles response to non client initiated messages, including bootstrap, schema check, etc.
maki
On 2012/03/26, at 2:18, aaron morton <aa...@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
>>
>>
>> Impetus to sponsor and exhibit at Structure Data 2012, NY; Mar 21-22. Know more about our Big Data quick-start program at the event.
>>
>> New Impetus webcast ‘Cloud-enabled Performance Testing vis-à-vis On-premise’ available at http://bit.ly/z6zT4L.
>>
>>
>> NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.
>
Re: Regarding nodetool tpstats
Posted by aaron morton <aa...@thelastpickle.com>.
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
>
>
> Impetus to sponsor and exhibit at Structure Data 2012, NY; Mar 21-22. Know more about our Big Data quick-start program at the event.
>
> New Impetus webcast ‘Cloud-enabled Performance Testing vis-à-vis On-premise’ available at http://bit.ly/z6zT4L.
>
>
> NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.