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https://issues.apache.org/jira/browse/APEXCORE-556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15569136#comment-15569136
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Sandesh commented on APEXCORE-556:
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One example is in Kafka 0.9 Exactly once output operator, during recovery it 
reads the tuples between 2 offsets, which is not deterministic, so having this 
attribute will help. [~dtram] can you please comment on the recovery time of 
file input operator?


> New operator attribute - RECOVERY_WINDOW_COUNT
> ----------------------------------------------
>
>                 Key: APEXCORE-556
>                 URL: https://issues.apache.org/jira/browse/APEXCORE-556
>             Project: Apache Apex Core
>          Issue Type: Improvement
>            Reporter: Sandesh
>
> During recovery operators need more time, so it is better to have different 
> per operator attribute representing that behaviour.
> Note:
> 1. Input and output operators need to have a higher value for this attribute, 
> as that is where recovery times are higher.



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