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From "Zheng Shao (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-480) allow option to retry map-reduce tasks
Date Fri, 12 Jun 2009 00:54:07 GMT

     [ https://issues.apache.org/jira/browse/HIVE-480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zheng Shao updated HIVE-480:
----------------------------

    Attachment: HIVE-480.1.patch

This patch adds an additional config: "hive.exec.retries.max" (default: 1) to HiveConf and
hive-default.xml

> allow option to retry map-reduce tasks
> --------------------------------------
>
>                 Key: HIVE-480
>                 URL: https://issues.apache.org/jira/browse/HIVE-480
>             Project: Hadoop Hive
>          Issue Type: New Feature
>          Components: Query Processor
>            Reporter: Joydeep Sen Sarma
>         Attachments: HIVE-480.1.patch
>
>
> for long running queries with multiple map-reduce jobs - this should help in dealing
with any transient cluster failures without having to re-running all the tasks.
> ideally - the entire plan can be serialized out and the actual process of executing the
workflow can be left to a pluggable workflow execution engine (since this is a problem that
has been solved many times already).

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