[jira] [Updated] (FLINK-12342) Yarn Resource Manager Acquires Too Many Containers

["Zhenqiu Huang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-12342?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zhenqiu Huang updated FLINK-12342:
----------------------------------
    Summary: Yarn Resource Manager Acquires Too Many Containers  (was: Yarn Resource Manager Acquire Too Many Containers)

> Yarn Resource Manager Acquires Too Many Containers
> --------------------------------------------------
>
>                 Key: FLINK-12342
>                 URL: https://issues.apache.org/jira/browse/FLINK-12342
>             Project: Flink
>          Issue Type: Improvement
>          Components: Deployment / YARN
>    Affects Versions: 1.6.4, 1.7.2, 1.8.0
>            Reporter: Zhenqiu Huang
>            Assignee: Zhenqiu Huang
>            Priority: Critical
>
> In currently implementation of YarnFlinkResourceManager, it starts to acquire new container one by one when get request from SlotManager. The mechanism works when job is still, say less than 32 containers. If the job has 256 container, containers can't be immediately allocated and appending requests in AMRMClient will be not removed accordingly. We observe the situation that AMRMClient ask for current pending request + 1 (the new request from slot manager) containers. In this way, during the start time of such job, it asked for 4000+ containers. If there is an external dependency issue happens, for example hdfs access is slow. Then, the whole job will be blocked without getting enough resource and finally killed with SlotManager request timeout.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)