[jira] [Updated] (NIFI-7011) FlowFile ordering can become incorrect when swapping data

["Joe Witt (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NIFI-7011?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joe Witt updated NIFI-7011:
---------------------------
    Fix Version/s: 1.11.0

> FlowFile ordering can become incorrect when swapping data
> ---------------------------------------------------------
>
>                 Key: NIFI-7011
>                 URL: https://issues.apache.org/jira/browse/NIFI-7011
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>            Reporter: Mark Payne
>            Assignee: Mark Payne
>            Priority: Major
>             Fix For: 1.11.0
>
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> NiFi provides weak ordering guarantees when using prioritizers in conjunction with swapped data. When data is swapped out, it is always the lowest priority data (according to the selected prioritizers) that is swapped out first. When data is swapped, it is always swapped back in, in the same order.
> However, I've come across a problem where data is swapped out. Then, the data that is not swapped out gets processed, then data waiting to be swapped out (lowest priority data) is processed, then the swapped data. It should always be that the lowest priority data, waiting to be swapped out, should be processed after all data that is already swapped out gets swapped back in.



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