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Posted to dev@apex.apache.org by "Pramod Immaneni (JIRA)" <ji...@apache.org> on 2017/03/27 15:59:41 UTC

[jira] [Commented] (APEXCORE-609) Support for back pressure in buffer server when spooling is disabled (out of memory issue)

    [ https://issues.apache.org/jira/browse/APEXCORE-609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15943516#comment-15943516 ] 

Pramod Immaneni commented on APEXCORE-609:
------------------------------------------

The first thing that can be done is to stop the publisher if the subscriber is behind. Later on the out of memory scenario when the subscriber can keep up with the publisher can be handled.

> Support for back pressure in buffer server when spooling is disabled (out of memory issue)
> ------------------------------------------------------------------------------------------
>
>                 Key: APEXCORE-609
>                 URL: https://issues.apache.org/jira/browse/APEXCORE-609
>             Project: Apache Apex Core
>          Issue Type: Improvement
>          Components: Buffer Server
>            Reporter: Pramod Immaneni
>            Assignee: Pramod Immaneni
>
> When buffer spooling is disabled and the specified buffer in memory limit is reached, because of fault tolerance requirements, additional memory is allocated to store the new data. This causes container to run out of memory.



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