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From "Raghotham Murthy (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-713) Integrate operator counters into query plan to view progress of queries
Date Fri, 31 Jul 2009 08:55:15 GMT

     [ https://issues.apache.org/jira/browse/HIVE-713?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Raghotham Murthy updated HIVE-713:
----------------------------------

    Attachment: hive-713.1.donot.patch

This patch contains most of the changes to the APIs in the ql package. It is only for review.
The following need to be done:

* Add the following default counters to Operator: #input rows, # output rows, cputime
* In QueryPlan, fetch the counters from the active tasks and store them locally to be queried
later
* Add progress method to MoveTask(?) and CopyTask
* Dump stats to history file in all progress methods
* Dump the query plan so that it can be viewed using tools like graphviz
* Change CliDriver or create a new class which can reconstruct the plan annotated with counters
from logs in history file
* Provide a call in HiveServer to retrieve the annotated query plan

> Integrate operator counters into query plan to view progress of queries
> -----------------------------------------------------------------------
>
>                 Key: HIVE-713
>                 URL: https://issues.apache.org/jira/browse/HIVE-713
>             Project: Hadoop Hive
>          Issue Type: New Feature
>          Components: Logging
>            Reporter: Raghotham Murthy
>            Assignee: Raghotham Murthy
>         Attachments: hive-713.1.donot.patch
>
>
> Annotate the QueryPlan - with multiple stages and each stage(Task) can have an Operator
tree - with counters that each Operator/Task updates.

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