[ 
https://issues.apache.org/jira/browse/KUDU-716?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Mike Percy updated KUDU-716:
----------------------------
    Parent: KUDU-808

> Single-disk tpch_real_world with SF=500 should complete successfully
> --------------------------------------------------------------------
>
>                 Key: KUDU-716
>                 URL: https://issues.apache.org/jira/browse/KUDU-716
>             Project: Kudu
>          Issue Type: Sub-task
>          Components: test
>    Affects Versions: Private Beta
>            Reporter: Todd Lipcon
>            Assignee: Jean-Daniel Cryans
>            Priority: Critical
>              Labels: kudu-roadmap
>         Attachments: data.tsv, inserts-over-time.png, 
> inserts-vs-bytes-on-disk.png, memory usage.png, mrs-size.png, 
> mrs-vs-bytes-on-disk.png
>
>
> We now have a "tpch_real_world" benchmark that loads lineitem for an 
> arbitrary scale factor and runs queries against it. In trying to run this on 
> a single-disk system, we are running into a number of issues that prevent it 
> from completing successfully:
> - OOMs on the server side, due to:
> -- poor default MRS size throttling behavior (per-MRS limits, no default 
> setting)
> -- live scanners retaining large amounts of memory from MRS (KUDU-18)
> - OOMs on the client side (bugs like KUDU-715)
> - timeouts during writes (eg due to client not respecting backpressure)
> - timeouts during scans (unclear why - perhaps the server went into swap?)
> We should make it a release criteria that tpch_real_world SF500 can complete 
> even on underprovisioned hardware (single-HDD).



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to