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From "Michael Blow (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (ASTERIXDB-1442) Global memory management is required
Date Mon, 16 May 2016 22:16:12 GMT

     [ https://issues.apache.org/jira/browse/ASTERIXDB-1442?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael Blow reassigned ASTERIXDB-1442:
---------------------------------------

    Assignee: Michael Blow

> Global memory management is required
> ------------------------------------
>
>                 Key: ASTERIXDB-1442
>                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-1442
>             Project: Apache AsterixDB
>          Issue Type: Improvement
>            Reporter: Taewoo Kim
>            Assignee: Michael Blow
>
> We set a few memory usage related parameter such as sort-memory, group-memory and join-memory
in asterix-configuration.xml. There are a few more parameters as well. An issue is that each
parameter is used individually by Asterix codebase and there is no global management regarding
these parameters. 
> Thus, for example, we can't guard a situation where memory allocation of sub components
such as sort-memory and group-memory is greater than the NC java heap size.
> It would be really nice if we have a query memory budgeting feature, too. If it is evident
that a query will exceed certain memory budget, we can warn users rather than issuing runtime
Out Of Memory error.
>   



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