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Posted to issues@flink.apache.org by "Ted Yu (JIRA)" <ji...@apache.org> on 2017/10/31 14:43:00 UTC

[jira] [Resolved] (FLINK-7936) Lack of synchronization w.r.t. taskManagers in MetricStore#add()

     [ https://issues.apache.org/jira/browse/FLINK-7936?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ted Yu resolved FLINK-7936.
---------------------------
    Resolution: Not A Problem

Should not be a problem after refactor.

> Lack of synchronization w.r.t. taskManagers in MetricStore#add()
> ----------------------------------------------------------------
>
>                 Key: FLINK-7936
>                 URL: https://issues.apache.org/jira/browse/FLINK-7936
>             Project: Flink
>          Issue Type: Bug
>          Components: Metrics
>            Reporter: Ted Yu
>            Priority: Minor
>
> {code}
>           String tmID = ((QueryScopeInfo.TaskManagerQueryScopeInfo) info).taskManagerID;
>           tm = taskManagers.computeIfAbsent(tmID, k -> new TaskManagerMetricStore());
> {code}
> In other places, access to taskManagers is protected by lock on MetricStore.this



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