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https://issues.apache.org/jira/browse/NIFI-13436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ferenc Erdei updated NIFI-13436:
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Fix Version/s: 2.0.0-M4
> MiNiFi C2 Flow update - Queue is dropped even component exists in the
> proposed flow
> -----------------------------------------------------------------------------------
>
> Key: NIFI-13436
> URL: https://issues.apache.org/jira/browse/NIFI-13436
> Project: Apache NiFi
> Issue Type: Bug
> Components: MiNiFi
> Affects Versions: 2.0.0-M3
> Reporter: Ferenc Erdei
> Assignee: Ferenc Erdei
> Priority: Minor
> Labels: minifi-java
> Fix For: 2.0.0-M4
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> h2. Issue
> When we propose a new flow for a running MiNiFi instance it first stop the
> source processors and try to wait until a pre-defined graceful period to have
> empty queues. If remaining items are in the queues after this period, the
> given flowfiles are dropped.
> This behaviour may cause data loss if the proposed flow contains some
> existing components.
> h2. Proposed solution
> After the graceful period expires, we should drop flowfiles only from those
> queues, that don't exist in the proposed flow.
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