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Posted to issues@calcite.apache.org by "Julian Hyde (JIRA)" <ji...@apache.org> on 2017/03/13 23:00:43 UTC

[jira] [Updated] (CALCITE-1693) Pig adapter test runs slowly

     [ https://issues.apache.org/jira/browse/CALCITE-1693?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Julian Hyde updated CALCITE-1693:
---------------------------------
    Component/s: pig-adapter

> Pig adapter test runs slowly
> ----------------------------
>
>                 Key: CALCITE-1693
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1693
>             Project: Calcite
>          Issue Type: Bug
>          Components: pig-adapter
>            Reporter: Julian Hyde
>            Assignee: Julian Hyde
>
> The Pig tests seem to be running very slowly (several minutes), and CPU is idle.
> A thread dump reveals a wait in {{java.net.Inet6AddressImpl#lookupAllHostAddr}}. If so, maybe we’re hitting a [known problem when IPv6 is not available| https://developer.ibm.com/answers/questions/284205/how-can-we-improve-performance-in-javanetinet6addr.html].
> The fix would be to add {{-Djava.net.preferIPv4Stack=true}}.
> [~maryannxue], Can you please see whether that fix helps in your environment?



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