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https://issues.apache.org/jira/browse/FALCON-1368?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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sandeep samudrala reassigned FALCON-1368:
-----------------------------------------

    Assignee: sandeep samudrala

> Improve Falcon server restart  time
> -----------------------------------
>
>                 Key: FALCON-1368
>                 URL: https://issues.apache.org/jira/browse/FALCON-1368
>             Project: Falcon
>          Issue Type: Improvement
>            Reporter: Ajay Yadava
>            Assignee: sandeep samudrala
>
> Currently on restart, Falcon server loads all the entities from HDFS one by 
> one. In a large set up like the one at Inmobi, where we have several 
> thousands of feeds and processes, this takes several minutes to increase the 
> start up time.
> Since this is an IO intensive task(reading a file from HDFS into memory), 
> having multiple threads to load entities in parallel will improve the start 
> up time of the server. 
> Two points need to be taken care of:
> 1. Only a single type of entities should be load in parallel to preserve the 
> order of load of entities.
> 2. Currently Falcon server fails to start if there is an error in loading any 
> entity, it will be slightly tricky but we should preserve the same behaviour 
> in case of parallel uploads via threads.



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