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From "Edward Capriolo (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-645) A UDF that can export data to JDBC databases.
Date Fri, 04 Sep 2009 14:32:57 GMT

    [ https://issues.apache.org/jira/browse/HIVE-645?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12751476#action_12751476
] 

Edward Capriolo commented on HIVE-645:
--------------------------------------

Luis,

I can take a shutgun effect to your problem and guess what the issues could be.

1) Network Access, Do all your nodes have mysql access to the destination server?

2) Too many simultaneous connections. If your mapred.map.tasks or mapred.reduce.tasks is very
high, you might be flooding your myself server. You might start with mapred.map.tasks=1 and
mapred.map.tasks=1 and work you way up to higher numbers and see if that is the issue.

Can you produce steps to reproduce the issue.


> A UDF that can export data to JDBC databases.
> ---------------------------------------------
>
>                 Key: HIVE-645
>                 URL: https://issues.apache.org/jira/browse/HIVE-645
>             Project: Hadoop Hive
>          Issue Type: New Feature
>          Components: Contrib
>            Reporter: Edward Capriolo
>            Assignee: Edward Capriolo
>            Priority: Minor
>         Attachments: hive-645-2.patch, hive-645-3.patch, hive-645-4.patch, hive-645-5.patch,
hive-645-6.patch, hive-645.patch
>
>
> A UDF that can export data to JDBC databases.

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