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Eric Newton updated ACCUMULO-4114: ---------------------------------- Attachment: MinCFlushPerfTest.java > examine performance decrease with many tablets > ---------------------------------------------- > > Key: ACCUMULO-4114 > URL: https://issues.apache.org/jira/browse/ACCUMULO-4114 > Project: Accumulo > Issue Type: Task > Components: client, tserver > Reporter: Eric Newton > Assignee: Eric Newton > Fix For: 1.8.0 > > Attachments: MetadataCompactionsPerTest.png, MinCFlushPerfTest.java, > PerfSmallIMM.png, PerfWithMoreTablets.png > > > While writing a performance test for ACCUMULO-4112, I noticed the performance > drop for large numbers of tablets hosted on a single server. > Some decrease in performance is expected since the various queues and buffers > are being divided among a greater number of tablets, but a 5x decrease is > unexpected. Given other fixes (ACCUMULO-3423, for example) I would not > expect performance to drop off so dramatically. > Investigate the performance of conditional updates going to many tablets, vs > one tablet. -- This message was sent by Atlassian JIRA (v6.3.4#6332)