[jira] [Resolved] (REEF-1680) Increasing default retry count in WaitingForRegistration

["Mariia Mykhailova (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/REEF-1680?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mariia Mykhailova resolved REEF-1680.
-------------------------------------
       Resolution: Fixed
    Fix Version/s: 0.16

Resolved via [PR 1194|https://github.com/apache/reef/pull/1194]

> Increasing default retry count in WaitingForRegistration
> --------------------------------------------------------
>
>                 Key: REEF-1680
>                 URL: https://issues.apache.org/jira/browse/REEF-1680
>             Project: REEF
>          Issue Type: Bug
>            Reporter: Julia
>            Assignee: Julia
>             Fix For: 0.16
>
>
> In IMRU, update task doesn't need to do data load but mapper do. That means we need to set sufficient retry times in WaitingForRegistratio, at least more than data loading time. Current setting is about 4 min. But for big data, it can be 25 minutes. 
> Previously we were hesitate to increase this number because WaitingForRegistration was in Task constructor. Before we get running task, there is no way to cancel a long waiting task in failure cases. 
> Now we have moved WaitingForRegistrationout of task constructor and added cancellation token. We are able to cancel the waiting if failure happens. Therefore we should increase this setting. 



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