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https://issues.apache.org/jira/browse/NIFI-108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15083462#comment-15083462
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Aldrin Piri commented on NIFI-108:
----------------------------------
-1 for branch NIFI-108 as it currently stands (commit
f0e86e5a7119a76bb14f2f4e507ebab96a8b3abf, Date: Thu Dec 31 16:30:15 2015
-0500)
Tests, build, and contrib all checked out.
Haven't done a deep dive through the code yet, but ran into a deadlock
situation with some initial inspection and have some general comments.
We will need some documentation on how this works. Initially, I did not have
my source processor stopped which did not present the listing of the queue as
an option. I can understand why this has to occur, but didn't think to stop my
source processor.
To recreate the deadlock issue, I used the template flow (will attach).
I generated a large queue (1.6M+) and stopped the GenerateFlowFile processor.
On the same screen, I initiated an empty queue request. Once that started, I
opened another tab and requested a List Queue action on the queue being
emptied. This caused the first tab to freeze at the current percentage of the
drop and the second window to spin indefinitely; selecting stop/cancel on the
empty queue modal had no effect. Opening additional tabs to the UI eventually
caused their requests to hang waiting for a response.
Will also attach thread dump.
> DFM should be allowed to inspect/interact with FlowFiles on a Connection
> ------------------------------------------------------------------------
>
> Key: NIFI-108
> URL: https://issues.apache.org/jira/browse/NIFI-108
> Project: Apache NiFi
> Issue Type: New Feature
> Components: Core Framework, Core UI
> Reporter: Matt Gilman
> Assignee: Matt Gilman
> Fix For: 0.5.0
>
>
> User should be able to see the attributes, as well as download the content
> and possibly remove an item from the queue (destroy the FlowFile entirely).
> Users should also be able to upload a new object into the queue (as requested
> at an apache nifi DC/MD/VA meetup).
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