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https://issues.apache.org/jira/browse/HBASE-5557?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phabricator updated HBASE-5557:
-------------------------------
Attachment: D2235.1.patch
mbautin requested code review of "[jira] [HBASE-5557] [89-fb] Fix incorrect
reader/writer thread interaction in HBaseTest".
Reviewers: Kannan, JIRA, Karthik, Liyin
Fixing an error in the 89-fb version of the single-client HBase load test
(HBaseTest) where the reader thread can attempt to read key #0 before it has
been written.
TEST PLAN
Run HBaseTest on a new table
REVISION DETAIL
https://reviews.facebook.net/D2235
AFFECTED FILES
src/test/java/org/apache/hadoop/hbase/manual/utils/MultiThreadedReader.java
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> [89-fb] Fix incorrect reader/writer thread interaction in HBaseTest
> -------------------------------------------------------------------
>
> Key: HBASE-5557
> URL: https://issues.apache.org/jira/browse/HBASE-5557
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.89-fb
> Reporter: Mikhail Bautin
> Assignee: Mikhail Bautin
> Priority: Minor
> Attachments: D2235.1.patch
>
>
> In the HBaseTest load test we have a condition when the writer has not
> written any keys but the reader might attempt to read key 0, resulting in a
> failure. This bug is specific to 89-fb because it has been fixed while
> open-sourcing HBaseTest as LoadTestTool, and those improvements still have
> not been back-ported to 89-fb. Doing a temporary fix now and we will get to
> the back-port later.
> 12/03/09 14:12:52 INFO utils.MultiThreadedReader: Key =
> cfcd208495d565ef66e7dff9f98764da:0
> 12/03/09 14:12:52 ERROR utils.MultiThreadedReader: No data returned, tried to
> get actions for key = cfcd208495d565ef66e7dff9f98764da:0
> 12/03/09 14:12:52 INFO utils.MultiThreadedReader: Key =
> cfcd208495d565ef66e7dff9f98764da:0
> 12/03/09 14:12:52 INFO utils.MultiThreadedReader: Key =
> cfcd208495d565ef66e7dff9f98764da:0
> 12/03/09 14:12:52 ERROR utils.MultiThreadedReader: No data returned, tried to
> get actions for key = cfcd208495d565ef66e7dff9f98764da:0
> 12/03/09 14:12:52 ERROR utils.MultiThreadedReader: No data returned, tried to
> get actions for key = cfcd208495d565ef66e7dff9f98764da:0
> 12/03/09 14:12:52 INFO utils.MultiThreadedReader: Key =
> cfcd208495d565ef66e7dff9f98764da:0
> 12/03/09 14:12:52 ERROR utils.MultiThreadedReader: No data returned, tried to
> get actions for key = cfcd208495d565ef66e7dff9f98764da:0
> 12/03/09 14:12:52 ERROR utils.MultiThreadedReader: Aborting run -- found more
> than three errors
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