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From "Chris Lohfink (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-14185) Nodetool tablehistograms to print statics for all the tables
Date Thu, 25 Jan 2018 18:56:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-14185?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16339638#comment-16339638
] 

Chris Lohfink commented on CASSANDRA-14185:
-------------------------------------------

just trying it a little bit, the output is hard to understand with the intermixing of std
out and std error. Might be nice to just go all standard out so piping and such will be readable.

 

ie

 
{code:java}
...
system/batches histograms
Percentile  SSTables     Write Latency      Read Latency    Partition Size        Cell Count
                              (micros)          (micros)           (bytes)               
  
50%             0.00              0.00              0.00               NaN               NaN
75%             0.00              0.00              0.00               NaN               NaN
95%             0.00              0.00              0.00               NaN               NaN
98%             0.00              0.00              0.00               NaN               NaN
99%             0.00              0.00              0.00               NaN               NaN
Min             0.00              0.00              0.00               NaN               NaN
Max             0.00              0.00              0.00               NaN               NaN

No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles
system/built_views histograms
Percentile  SSTables     Write Latency      Read Latency    Partition Size        Cell Count
                              (micros)          (micros)           (bytes)               
  
50%             0.00              0.00              0.00               NaN               NaN
75%             0.00              0.00              0.00               NaN               NaN
95%             0.00              0.00              0.00               NaN               NaN
98%             0.00              0.00              0.00               NaN               NaN
99%             0.00              0.00              0.00               NaN               NaN
Min             0.00              0.00              0.00               NaN               NaN
Max             0.00              0.00              0.00               NaN               NaN

No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles
system/compaction_history histograms
Percentile  SSTables     Write Latency      Read Latency    Partition Size        Cell Count
                              (micros)          (micros)           (bytes)               
  
50%             0.00              0.00              0.00               NaN               NaN
75%             0.00              0.00              0.00               NaN               NaN
95%             0.00              0.00              0.00               NaN               NaN
98%             0.00              0.00              0.00               NaN               NaN
99%             0.00              0.00              0.00               NaN               NaN
Min             0.00              0.00              0.00               NaN               NaN
Max             0.00              0.00              0.00               NaN               NaN

system/local histograms
Percentile  SSTables     Write Latency      Read Latency    Partition Size        Cell Count
                              (micros)          (micros)           (bytes)               
  
50%             0.00              0.00              0.00               215               
14
75%             0.00              0.00              0.00              5722               258
95%             0.00              0.00              0.00              5722               258
98%             0.00              0.00              0.00              5722               258
No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles
No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles
No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles
No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles
No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles
No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles
No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles
No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles
No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles
No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles
No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles
No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles
No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles
{code}
 

> Nodetool tablehistograms to print statics for all the tables
> ------------------------------------------------------------
>
>                 Key: CASSANDRA-14185
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14185
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>            Reporter: Jaydeepkumar Chovatia
>            Assignee: Jaydeepkumar Chovatia
>            Priority: Minor
>             Fix For: 4.x
>
>
> Currently {{nodetool tablehistograms}} requires {{keyspacename.tablename}} as argument
always. If we want to print histograms for all the tables then we will have to run this command
for all the tables one after another. 
> It would be nice to have this command dump histogram for all the table at once if no
argument is provided, similar to {{nodetool tablestats}}.



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