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Wei Deng commented on CASSANDRA-12226: -------------------------------------- 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} -- This message was sent by Atlassian JIRA (v6.3.4#6332)