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Posted to dev@uima.apache.org by "Lou DeGenaro (JIRA)" <de...@uima.apache.org> on 2019/02/18 13:15:00 UTC

[jira] [Comment Edited] (UIMA-5742) Reliable DUCC

    [ https://issues.apache.org/jira/browse/UIMA-5742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16771073#comment-16771073 ] 

Lou DeGenaro edited comment on UIMA-5742 at 2/18/19 1:14 PM:
-------------------------------------------------------------

prevent start of DB when automanage == False


was (Author: lou.degenaro):
prevent start of db when automanage == False

> Reliable DUCC
> -------------
>
>                 Key: UIMA-5742
>                 URL: https://issues.apache.org/jira/browse/UIMA-5742
>             Project: UIMA
>          Issue Type: New Feature
>          Components: DUCC
>            Reporter: Lou DeGenaro
>            Assignee: Lou DeGenaro
>            Priority: Major
>             Fix For: 3.0.0-Ducc
>
>
> Reliable DUCC
> * Support for multiple DUCC head nodes, one of which is the active master the others are backups only, with takeover by new master activated by virtual IP address switching though keepalived
> * A switch mechanism that potentially is employed by keepalived to determine the health of the set of Reliable DUCC head nodes in order to make the virtual IP address assignment
> * Autostart capability for head node and agent daemons, whereby administrator intervention to issue start_ducc is unnecessary
> See svn branch /uima/uima-ducc/branches/reliable-ducc for development code.  Reliable DUCC document can be found under uima-ducc-duccdocs/target/site/duccbook-pdf/reliable-ducc.pdf after issuing:
> > mvn clean install -Pbuild-duccdocs
>  



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