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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-12148) Remove TimeRangeTracker as point of contention when many threads writing a Store
Date Wed, 13 Apr 2016 23:40:25 GMT

     [ https://issues.apache.org/jira/browse/HBASE-12148?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-12148:
--------------------------
    Attachment: 12148v4.patch

v4 fixes one bug in v3 and does some simplification and shutdown of access.

+ We do the assign and declaration in one step so can mark timeRange final.
+ Removed init. It is not used (v3 had interesting issue where passed in param was 'l' --
i.e. lowercase L -- but internally we were doing a set with '1', the number one.
+ Made the TimeRangeTimestamp inner class all final and private so for sure immutable.

Let me come back w/ a write-time version that does not do object creations.

> Remove TimeRangeTracker as point of contention when many threads writing a Store
> --------------------------------------------------------------------------------
>
>                 Key: HBASE-12148
>                 URL: https://issues.apache.org/jira/browse/HBASE-12148
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Performance
>    Affects Versions: 2.0.0, 0.99.1
>            Reporter: stack
>            Assignee: Walter Koetke
>             Fix For: 2.0.0, 1.3.0, 0.98.19
>
>         Attachments: 0001-In-AtomicUtils-change-updateMin-and-updateMax-to-ret.patch,
12148.addendum.txt, 12148.txt, 12148.txt, 12148v2.txt, 12148v2.txt, 12148v4.patch, HBASE-12148-V3.patch,
HBASE-12148-V3.patch, HBASE-12148.txt, HBASE-12148V2.txt, Screen Shot 2014-10-01 at 3.39.46
PM.png, Screen Shot 2014-10-01 at 3.41.07 PM.png, Screen Shot 2016-04-13 at 1.49.30 PM.png,
Screen Shot 2016-04-13 at 2.02.22 PM.png, TimeRangeTracker.tiff
>
>




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