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https://issues.apache.org/jira/browse/NIFI-3066?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15683532#comment-15683532
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Oleg Zhurakousky commented on NIFI-3066:
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Joseph, thanks for posting a link.
GitHub automatically links the PR with the corresponding JIRA providing that
your commit message contains the JIRA number. And while your commit message
does contain JIRA number it is not precise 'Nifi 3066' while it should be
'NIFI-3066'.
You can try to amend the commit message , but as long as there is a way to
correlate this JIRA to PR it's all good.
> MergeContent: "Cannot migrate FlowFiles from a Process Session to itself"
> -------------------------------------------------------------------------
>
> Key: NIFI-3066
> URL: https://issues.apache.org/jira/browse/NIFI-3066
> Project: Apache NiFi
> Issue Type: Bug
> Affects Versions: 1.1.0
> Reporter: Joseph Gresock
> Assignee: Mark Payne
> Priority: Critical
> Fix For: 1.1.0
>
>
> With the following properties in MergeContent, I get this error when I try to
> process a flow file (which is 135MB):
> Merge Strategy = Bin-Packing Algorithm
> Merge Format = ZIP
> Attribute Strategy = Keep Only Common Attributes
> Correlation Attribute Name = bundle.identifier
> Minimum Number of Entries = 200
> Maximum Number of Entries = 200
> Minimum Group Size = 20 MB
> Maximum Group Size = *20 MB*
> Max Bin Age = 1 min
> Maximum number of Bins = 100
> Delimiter Strategy = Filename
> Keep Path = false
> {code}
> 016-11-18 18:00:13,752 ERROR [Timer-Driven Process Thread-83]
> o.a.n.processors.standard.MergeContent
> java.lang.IllegalArgumentException: Cannot migrate FlowFiles from a Process
> Session to itself
> at
> org.apache.nifi.controller.repository.StandardProcessSession.migrate(StandardProcessSession.java:1091)
> ~[nifi-framework-core-1.1.0-SNAPSHOT.jar:1.1.0-SNAPSHOT]
> at org.apache.nifi.processor.util.bin.Bin.offer(Bin.java:142)
> ~[nifi-processor-utils-1.1.0-SNAPSHOT.jar:1.1.0-SNAPSHOT]
> at
> org.apache.nifi.processor.util.bin.BinFiles.binFlowFiles(BinFiles.java:282)
> ~[nifi-processor-utils-1.1.0-SNAPSHOT.jar:1.1.0-SNAPSHOT]
> at
> org.apache.nifi.processor.util.bin.BinFiles.onTrigger(BinFiles.java:178)
> ~[nifi-processor-utils-1.1.0-SNAPSHOT.jar:1.1.0-SNAPSHOT]
> at
> org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1089)
> ~[nifi-framework-core-1.1.0-SNAPSHOT.jar:1.1.0-SNAPSHOT]
> ...
> 2016-11-18 18:00:13,753 WARN [Timer-Driven Process Thread-83]
> o.a.n.processors.standard.MergeContent
> MergeContent[id=a9476272-dab0-3d2f-acef-abf11f7d1b80] Processor
> Administratively Yielded for 1 sec due to processing failure
> {code}
> However, other smaller flow files are able to successfully go through the
> processor. Not sure if it's related to the size of the flow file or not.
> Perhaps there just needs to be a check around this line in Bin.java:142, to
> make sure we don't try to migrate a flow file to its own session:
> {code}
> session.migrate(getSession(), Collections.singleton(flowFile));
> {code}
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