[jira] [Commented] (YARN-1326) RM should log using RMStore at startup time

[Karthik Kambatla (JIRA)]

    [ 
https://issues.apache.org/jira/browse/YARN-1326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13867985#comment-13867985
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Karthik Kambatla commented on YARN-1326:
----------------------------------------

Also, if we choose to go with logging, how about just log something in getStore 
itself? May be, something along the lines of - 
{code}
  public static RMStateStore getStore(Configuration conf) {
    Class<? extends RMStateStore> storeClass = 
         conf.getClass(YarnConfiguration.RM_STORE, 
            MemoryRMStateStore.class, RMStateStore.class), conf);
    LOG.info("Using RMStateStore implementation - " + storeClass);
    return ReflectionUtils.newInstance(storeClass);
  }
{code}

> RM should log using RMStore at startup time
> -------------------------------------------
>
>                 Key: YARN-1326
>                 URL: https://issues.apache.org/jira/browse/YARN-1326
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Tsuyoshi OZAWA
>            Assignee: Tsuyoshi OZAWA
>         Attachments: YARN-1326.1.patch
>
>   Original Estimate: 3h
>  Remaining Estimate: 3h
>
> Currently there are no way to know which RMStore RM uses. It's useful to log 
> the information at RM's startup time.



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