[jira] [Commented] (OOZIE-1519) Admin command to update the sharelib

["Robert Kanter (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OOZIE-1519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13758504#comment-13758504 ] 

Robert Kanter commented on OOZIE-1519:
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To handle the HA propagation, the command can do what I did for the log streaming where the REST command had an optional parameter, {{allservers}}.  When {{allserverse=false}} the receiving Oozie server will update its sharelib, but not notify the other servers about it.  When {{allservers=true}} or is omitted (i.e. the default), the receiving Oozie server will update its sharelib, and notify the other servers about it by calling the same command but with {{alservers=false}} to prevent infinite propagation.

Separate logic shouldn't be necessary between HA and non-HA because the call to get the other servers ({{Services.get().get(JobsConcurrencyService.class).getServerUrls()}}) will return just the one server if HA is not enabled and all the servers if HA is enabled.
                
> Admin command to update the sharelib
> ------------------------------------
>
>                 Key: OOZIE-1519
>                 URL: https://issues.apache.org/jira/browse/OOZIE-1519
>             Project: Oozie
>          Issue Type: Bug
>            Reporter: Virag Kothari
>
> OOZIE-1518 aims to copy all the sharelibs from an hdfs staging dir. This JIRA will add a new admin command which will allow the admins to notify the oozie server when sharelib package is upgraded. In case of HA, one oozie server will notify other servers to update their own sharelibs. Also if the notification is lost or some server is down, that server will update its sharelib path during startup as it will check for any new sharelibs in the staging dir.

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