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Posted to dev@qpid.apache.org by "Rafael H. Schloming (JIRA)" <qp...@incubator.apache.org> on 2008/08/06 19:18:44 UTC

[jira] Created: (QPID-1221) UUID.randomUUID() is really slow

UUID.randomUUID() is really slow
--------------------------------

                 Key: QPID-1221
                 URL: https://issues.apache.org/jira/browse/QPID-1221
             Project: Qpid
          Issue Type: Bug
          Components: Java Client
    Affects Versions: M3
            Reporter: Rafael H. Schloming
            Assignee: Rafael H. Schloming


UUID.randomUUID() is really slow, it's much faster to generate a single namespace UUID with randomUUID() and use that + a counter with UUID.nameUUIDFromBytes(byte[] name).

Because the uniqueness properties of this other scheme might be different, we should have the uuid generation strategy be configurable.

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[jira] Resolved: (QPID-1221) UUID.randomUUID() is really slow

Posted by "Rafael H. Schloming (JIRA)" <qp...@incubator.apache.org>.

     [ https://issues.apache.org/jira/browse/QPID-1221?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rafael H. Schloming resolved QPID-1221.
---------------------------------------

       Resolution: Fixed
    Fix Version/s: M3

> UUID.randomUUID() is really slow
> --------------------------------
>
>                 Key: QPID-1221
>                 URL: https://issues.apache.org/jira/browse/QPID-1221
>             Project: Qpid
>          Issue Type: Bug
>          Components: Java Client
>    Affects Versions: M3
>            Reporter: Rafael H. Schloming
>            Assignee: Rafael H. Schloming
>             Fix For: M3
>
>
> UUID.randomUUID() is really slow, it's much faster to generate a single namespace UUID with randomUUID() and use that + a counter with UUID.nameUUIDFromBytes(byte[] name).
> Because the uniqueness properties of this other scheme might be different, we should have the uuid generation strategy be configurable.

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