Michael Moser created NIFI-378:
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Summary: MergeContent in Defragment mode will merge fragments
without checking index
Key: NIFI-378
URL: https://issues.apache.org/jira/browse/NIFI-378
Project: Apache NiFi
Issue Type: Bug
Components: Extensions
Affects Versions: 0.0.1
Reporter: Michael Moser
Priority: Minor
When in Defragment mode, the MergeContent processor looks for
fragment.identifier and fragment.count attributes in order to place FlowFiles
in the correct bin. The fragment.index attribute is ignored.
If you happen to have many FlowFile in the queue to MergeContent, and they all
have fragment.identifier=foo and fragment.count=2, then it will merge two
FlowFiles that have fragment.index=1 or it will merge two FlowFiles that have
fragment.index=2.
Granted this may seem odd. The use case is to give the MergeContent processor
two input queues. We configure one queue to contain files with
fragment.index=1 and the other queue to contain files with fragment.index=2.
We want one file from each queue to be merged. Instead it will merge two files
from the same queue.
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