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From "Haohui Mai (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8321) CacheDirectives and CachePool operations should throw RetriableException in safemode
Date Mon, 04 May 2015 22:48:06 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Haohui Mai updated HDFS-8321:
-----------------------------
    Status: Patch Available  (was: Open)

> CacheDirectives and CachePool operations should throw RetriableException in safemode
> ------------------------------------------------------------------------------------
>
>                 Key: HDFS-8321
>                 URL: https://issues.apache.org/jira/browse/HDFS-8321
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Haohui Mai
>            Assignee: Haohui Mai
>         Attachments: HDFS-8321.000.patch
>
>
> Operations such as {{addCacheDirectives()}} throws {{SafeModeException}} when the NN
is in safemode:
> {code}
>       if (isInSafeMode()) {
>         throw new SafeModeException(
>             "Cannot add cache directive", safeMode);
>       }
> {code}
> While other NN operations throws {{RetriableException}} when HA is enabled:
> {code}
>   void checkNameNodeSafeMode(String errorMsg)
>       throws RetriableException, SafeModeException {
>     if (isInSafeMode()) {
>       SafeModeException se = new SafeModeException(errorMsg, safeMode);
>       if (haEnabled && haContext != null
>           && haContext.getState().getServiceState() == HAServiceState.ACTIVE
>           && shouldRetrySafeMode(this.safeMode)) {
>         throw new RetriableException(se);
>       } else {
>         throw se;
>       }
>     }
>   }
> {code}



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