[jira] [Resolved] (ACCUMULO-931) Oscillations in Accumulo Ingest Performance

["Josh Elser (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ACCUMULO-931?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Josh Elser resolved ACCUMULO-931.
---------------------------------

    Resolution: Not A Problem

Pre-splitting the table being ingested into mitigated the issue.
                
> Oscillations in Accumulo Ingest Performance
> -------------------------------------------
>
>                 Key: ACCUMULO-931
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-931
>             Project: Accumulo
>          Issue Type: Bug
>    Affects Versions: 1.4.2
>         Environment: 
>            Reporter: Jeremy Kepner
>         Attachments: 12,r8,r10,r12ingestor_1table_12tablet.pdf, 1ingestor_1table_1tablet.pdf, 1ingestor_1table_2tablet.pdf, 1ingestor_1table_4tablet.pdf, 1ingestor.pdf, 2,3,4ingestor_1table_4tablet.pdf, 2ingestor.pdf, 3ingestor.pdf, 4ingestor.pdf, ingest_performance_explained.pdf
>
>
> Linux 2.6.32, single node, 32 cores, 96 GB RAM, 3x3TB SATA drives, RAID5
> Ingest performance into accumulo varies by 2.5x.  Depending upon the number of ingestors.
> Performance tests were carried out using Graph500 benchmark (see d4m_api/examples/3Scaling/2ParallelDatabase/pDB10_EdgeInsertTEST.m from http://www.mit.edu/~kepner/D4M/).

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