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Posted to issues@trafodion.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2016/10/30 15:43:59 UTC

[jira] [Commented] (TRAFODION-2235) Enhance node failure detection and coordination

    [ https://issues.apache.org/jira/browse/TRAFODION-2235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15620127#comment-15620127 ] 

ASF GitHub Bot commented on TRAFODION-2235:
-------------------------------------------

GitHub user zcorrea opened a pull request:

    https://github.com/apache/incubator-trafodion/pull/801

    [TRAFODION-2235] Changed EPOLL timeout default values.

    

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/zcorrea/incubator-trafodion TRAFODION-2235

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/incubator-trafodion/pull/801.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #801
    
----
commit 0ddd1093a7003ff9f05ec9b1fcdeb17cab20fd63
Author: Zalo Correa <za...@esgyn.com>
Date:   2016-10-30T15:41:18Z

    [TRAFODION-2235] Changed EPOLL timeout default values.

----


> Enhance node failure detection and coordination
> -----------------------------------------------
>
>                 Key: TRAFODION-2235
>                 URL: https://issues.apache.org/jira/browse/TRAFODION-2235
>             Project: Apache Trafodion
>          Issue Type: Bug
>          Components: foundation, installer
>    Affects Versions: 2.1-incubating
>            Reporter: Gonzalo E Correa
>            Assignee: Gonzalo E Correa
>
> Certain server and network failures are not detected by the monitor processes which cause a safety net failure detection mechanism to trigger in all Trafodion nodes. This safety net mechanism is controlled by the environment variable  SQ_MON_SYNC_TIMEOUT currently set at 15 minutes.
> This JIRA is to enhance the node failure mechanism in the Trafodion foundation components, specifically the monitor process, to detect a non-responsive node and handle it as a node down condition when a configurable timeout event is detected prior to the safety net failure mechanism described above.



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