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https://issues.apache.org/jira/browse/CASSANDRA-11939?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ariel Weisberg reassigned CASSANDRA-11939:
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Assignee: Amanda R Debrot
> Read and Write Latency columns are swapped in proxyhistograms vs cfhistograms
> -----------------------------------------------------------------------------
>
> Key: CASSANDRA-11939
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11939
> Project: Cassandra
> Issue Type: Bug
> Components: Tools
> Reporter: J.B. Langston
> Assignee: Amanda R Debrot
> Priority: Minor
> Labels: lhf
> Attachments: 11939-2.2.txt, 11939-2.2.txt, 11939-3.0.txt,
> 11939-3.0.txt, 11939-3.11.txt, 11939-3.11.txt, 11939-output.txt,
> 11939-trunk.txt, 11939-trunk.txt
>
>
> It’s triggering my ocd that read and write latency columns are swapped in
> proxyhistograms vs cfhistograms. I guess the argument against changing it now
> is that it could screw with some peoples scripts or expectations, but it does
> make it hard to eyeball when you’re trying to compare local latencies vs
> coordinator latencies.
> {code}
> Percentile SSTables Write Latency Read Latency Partition Size
> Cell Count
> (micros) (micros) (bytes)
> 50% 4.00 17.00 770.00 8239
> 4
> 75% 5.00 24.00 924.00 17084
> 17
> 95% 5.00 35.00 61214.00 51012
> 24
> 98% 6.00 35.00 126934.00 105778
> 24
> 99% 6.00 72.00 152321.00 152321
> 35
> Min 0.00 9.00 36.00 21
> 0
> Max 6.00 86.00 263210.00 20924300
> 1109
> Percentile Read Latency Write Latency Range Latency
> (micros) (micros) (micros)
> 50% 1331.00 535.00 11864.00
> 75% 17084.00 642.00 20501.00
> 95% 219342.00 1331.00 20501.00
> 98% 315852.00 2759.00 20501.00
> 99% 379022.00 3311.00 20501.00
> Min 373.00 73.00 9888.00
> Max 379022.00 9887.00 20501.00
> {code}
> Ideally read and write latencies should be in the same order and the first
> and second columns on both so they’re directly aligned. The sstables column
> should be moved to the 3rd column to make way.
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