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https://issues.apache.org/jira/browse/CASSANDRA-12226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15384309#comment-15384309
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Wei Deng commented on CASSANDRA-12226:
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All of the dropped message counts start at the JVM start, so you can get the
information (on this additional line you suggested) indirectly from "nodetool
info" uptime, or a JMX metrics. Are you saying you want that information to be
directly displayed in "nodetool tpstats" output?
> 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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