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From "Mark Curtis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-12226) Nodetool tpstats output could benefit from "events since" information
Date Wed, 27 Jul 2016 15:00:24 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-12226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15395802#comment-15395802
] 

Mark Curtis commented on CASSANDRA-12226:
-----------------------------------------

Correct it would be ideal to have it right there for a user to see, just for convenience.

> Nodetool tpstats output could benefit from "events since" information
> ---------------------------------------------------------------------
>
>                 Key: CASSANDRA-12226
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12226
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>            Reporter: Mark Curtis
>            Priority: Minor
>
> The output of tools like {{nodetool tpstats}} are very useful for seeing historical counters
of things like dropped mutations etc.
> What would be very useful (if possible of course) is something above these to say "since
<x>" to help the user understand how long these stats apply and when we started collecting
them.
> This might extend to other outputs like histograms, even if these are more like "since
you last run this" it might still be useful.
> Here's an example:
> {code}
> Pool Name                    Active   Pending      Completed   Blocked  All time blocked
> CounterMutationStage              0         0              0         0              
  0
> ReadStage                         0         0      111284390         0              
  0
> RequestResponseStage              0         0      297011175         0              
  0
> MutationStage                     0         0      134532012         0              
  0
> ReadRepairStage                   0         0         742114         0              
  0
> GossipStage                       0         0        5639150         0              
  0
> CacheCleanupExecutor              0         0              0         0              
  0
> MigrationStage                    0         0            315         0              
  0
> ValidationExecutor                0         0         482844         0              
  0
> Sampler                           0         0              0         0              
  0
> MemtableReclaimMemory             0         0         164619         0              
  0
> InternalResponseStage             0         0         792376         0              
  0
> AntiEntropyStage                  0         0        5402052         0              
  0
> MiscStage                         0         0           1197         0              
  0
> CommitLogArchiver                 0         0              0         0              
  0
> MemtableFlushWriter               0         0         164564         0              
  0
> PendingRangeCalculator            0         0             70         0              
  0
> MemtablePostFlush                 0         0         811892         0              
  0
> CompactionExecutor                7        11        3250908         0              
  0
> AntiEntropySessions               4       218         142144         0              
  0
> HintedHandoff                     2         7            602         0              
  0
> Native-Transport-Requests         0         0       97372556         0              
 34
> Dropped messages since 2016-07-18 01:00:04
> Message type           Dropped
> RANGE_SLICE                  0
> READ_REPAIR                  0
> PAGED_RANGE                  0
> BINARY                       0
> READ                         0
> MUTATION                     0
> _TRACE                  179705
> REQUEST_RESPONSE             0
> COUNTER_MUTATION             0
> {code}



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