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Posted to dev@hbase.apache.org by "Ted Yu (JIRA)" <ji...@apache.org> on 2016/05/21 17:16:12 UTC

[jira] [Reopened] (HBASE-15802) ConnectionUtils should use ThreadLocalRandom instead of Random

     [ https://issues.apache.org/jira/browse/HBASE-15802?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ted Yu reopened HBASE-15802:
----------------------------

>  ConnectionUtils should use ThreadLocalRandom instead of Random
> ---------------------------------------------------------------
>
>                 Key: HBASE-15802
>                 URL: https://issues.apache.org/jira/browse/HBASE-15802
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Hiroshi Ikeda
>            Assignee: Matt Warhaftig
>            Priority: Minor
>         Attachments: hbase-15802.patch
>
>
> {code}
> public final class ConnectionUtils {
> ...skip...
>   private static final Random RANDOM = new Random();
> {code}
> In general, static fields are accessed by multi-threads. The class Random is thread-safe but ThreadLocalRandom is more preferable because of less contention.



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