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From "Robert Metzger (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-7936) Lack of synchronization w.r.t. taskManagers in MetricStore#add()
Date Mon, 30 Oct 2017 21:16:00 GMT

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

Robert Metzger updated FLINK-7936:
----------------------------------
    Component/s: Metrics

> 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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