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From "Hiroshi Ikeda (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14279) Race condition in ConcurrentIndex
Date Wed, 04 Nov 2015 04:41:27 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14988862#comment-14988862
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Hiroshi Ikeda commented on HBASE-14279:
---------------------------------------

I'm ashamed that I used the word "bag" because I just wanted to use a different word than
"multimap", but the Google collections provides the interface "SetMultimap", which might be
an appropriate name.

> Race condition in ConcurrentIndex
> ---------------------------------
>
>                 Key: HBASE-14279
>                 URL: https://issues.apache.org/jira/browse/HBASE-14279
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Hiroshi Ikeda
>            Assignee: Heng Chen
>            Priority: Minor
>         Attachments: HBASE-14279.patch, HBASE-14279_v2.patch, LockStripedBag.java
>
>
> {{ConcurrentIndex.put}} and {{remove}} are in race condition. It is possible to remove
a non-empty set, and to add a value to a removed set. Also {{ConcurrentIndex.values}} is vague
in sense that the returned set sometimes trace the current state and sometimes doesn't.



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