[jira] [Closed] (UIMA-5867) UIMA-DUCC: pullservice should synchronize GET retry when client has no tasks to give

["Jerry Cwiklik (JIRA)" <de...@uima.apache.org>]

     [ https://issues.apache.org/jira/browse/UIMA-5867?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jerry Cwiklik closed UIMA-5867.
-------------------------------
    Resolution: Fixed

Modified to use single thread to retry GET when client returns empty task. On success other blocked threads do their retry

> UIMA-DUCC: pullservice should synchronize GET retry when client has no tasks to give
> ------------------------------------------------------------------------------------
>
>                 Key: UIMA-5867
>                 URL: https://issues.apache.org/jira/browse/UIMA-5867
>             Project: UIMA
>          Issue Type: Improvement
>          Components: DUCC
>            Reporter: Jerry Cwiklik
>            Assignee: Jerry Cwiklik
>            Priority: Major
>             Fix For: 2.2.3-Ducc
>
>
> When a client has no more tasks to give, the service should synchronize GET retry until the client has more tasks to process. A single thread will keep asking for a task while other threads block. When a task becomes available, the service should unblock all threads and resume normal processing. 



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