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Posted to dev@storm.apache.org by "Rick Kellogg (JIRA)" <ji...@apache.org> on 2015/10/09 02:27:27 UTC

[jira] [Updated] (STORM-120) util/acquire-random-range-id is not thread-safe

     [ https://issues.apache.org/jira/browse/STORM-120?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rick Kellogg updated STORM-120:
-------------------------------
    Component/s: storm-core

> util/acquire-random-range-id is not thread-safe
> -----------------------------------------------
>
>                 Key: STORM-120
>                 URL: https://issues.apache.org/jira/browse/STORM-120
>             Project: Apache Storm
>          Issue Type: Bug
>          Components: storm-core
>            Reporter: James Xu
>            Priority: Minor
>
> https://github.com/nathanmarz/storm/issues/724
> Concurrent calls to util/acquire-random-range-id with the same parameters can result in an IndexOutOfBoundsException, as an increment in one thread may occur after the bounds check in another. The resulting curr value can be >= the size of the List state.
> https://github.com/nathanmarz/storm/blob/fc5fbb8b352cf91050cdde4a9f9e77e673ab7f48/storm-core/src/clj/backtype/storm/util.clj#L606



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