[jira] [Assigned] (HAWQ-1444) Need to replace gettimeofday() with clock_gettime() for related timeout checking code

["Paul Guo (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HAWQ-1444?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul Guo reassigned HAWQ-1444:
------------------------------

    Assignee: Paul Guo  (was: Ed Espino)

> Need to replace gettimeofday() with clock_gettime() for related timeout checking code
> -------------------------------------------------------------------------------------
>
>                 Key: HAWQ-1444
>                 URL: https://issues.apache.org/jira/browse/HAWQ-1444
>             Project: Apache HAWQ
>          Issue Type: Bug
>          Components: Core
>            Reporter: Paul Guo
>            Assignee: Paul Guo
>             Fix For: backlog
>
>
> gettimeofday() could be affected by ntp kinda things. If using it for timeout logic there could be wrong, e.g. time goes backwards. We could clock_gettime() with CLOCK_MONOTONIC as an alternative.
> For some platforms/oses that does not have the support for clock_gettime(), we can fall back to use gettimeofday().
> Note getCurrentTime() in code is a good example.



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