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From "Brock Noland (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-5524) Unwanted delay in getting Hive metastore connection with METASTORE_CLIENT_CONNECT_RETRY_DELAY/
Date Tue, 10 Dec 2013 03:41:08 GMT

    [ https://issues.apache.org/jira/browse/HIVE-5524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13843905#comment-13843905
] 

Brock Noland commented on HIVE-5524:
------------------------------------

+1 if tests pass

> Unwanted delay in getting Hive metastore connection with METASTORE_CLIENT_CONNECT_RETRY_DELAY/
> ----------------------------------------------------------------------------------------------
>
>                 Key: HIVE-5524
>                 URL: https://issues.apache.org/jira/browse/HIVE-5524
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 0.10.0
>            Reporter: Rajesh Balamohan
>         Attachments: HIVE-5524.patch
>
>
> Reference:  http://svn.apache.org/repos/asf/hive/trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java
> >>>>
>  for (URI store : metastoreUris) {
> ....
> ...
>  if (isConnected) {
>           break;
>         }
>       }
> // Wait before launching the next round of connection retries.
>       if (retryDelaySeconds > 0) {
>         try {
>           LOG.info("Waiting " + retryDelaySeconds + " seconds before next connection
attempt.");
>           Thread.sleep(retryDelaySeconds * 1000);
>         } catch (InterruptedException ignore) {}
>       }
> >>>>
> By default "hive.metastore.client.connect.retry.delay" is set to 1 second.  If it is
set to 10 seconds, this code will wait for 10 seconds even if a successful connection is made
in first attempt itself.
> This can be avoided by changing to 
> >>>>
>  if (!isConnected && retryDelaySeconds > 0) {
> ....
> >>>>



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