You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@calcite.apache.org by "Julian Hyde (JIRA)" <ji...@apache.org> on 2017/07/18 18:00:00 UTC

[jira] [Resolved] (CALCITE-1883) HepPlanner should force garbage collect whenever a root registered

     [ https://issues.apache.org/jira/browse/CALCITE-1883?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Julian Hyde resolved CALCITE-1883.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.14.0

Fixed in http://git-wip-us.apache.org/repos/asf/calcite/commit/eb911cb5. Thanks for sorting out the PR, [~tedxu]!

> HepPlanner should force garbage collect whenever a root registered
> ------------------------------------------------------------------
>
>                 Key: CALCITE-1883
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1883
>             Project: Calcite
>          Issue Type: Bug
>            Reporter: Ted Xu
>            Assignee: Julian Hyde
>             Fix For: 1.14.0
>
>
> Currently HepPlanner#collectGarbage() will skip if there is no new transform since last GC. If HepPlanner is reused, it is common case that no transform is applied after last cheapest plan is built while before next round of optimize is kicked off.
> This may break HepPlanner because the garbage is probably not a graph after HepPlanner#buildFinalPlan .
> I'll try if I can create a reproduce case.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)