Joseph Percivall created NIFI-4874:
--------------------------------------
Summary: RPGs to flows that share the same flow and port UUIDs can
cause non-deterministic FlowFile transmission
Key: NIFI-4874
URL: https://issues.apache.org/jira/browse/NIFI-4874
Project: Apache NiFi
Issue Type: Bug
Affects Versions: 1.4.0
Reporter: Joseph Percivall
Fix For: 1.5.0
To replicate, set up three different 1.4.0 NiFi instances, one sender, and two
receivers. On one of the senders, create a simple flow consisting of a single
input port with a connection to a LogAttribute processor. Copy this instance's
flow.xml to the other receiving instance. Start the remaining instances.
On the sender, create a flow with a GenerateFlowFile to a Funnel which has
connections going to two RPGs (one for each receiver). With both RPGs having
disabled transmission generate a single FlowFile (leading to the queues in
front of each RPG with one).
To be explicit, the receiving flows must be started from copies of the same
flow.xml (leading to the same port and flow UUIDs).
Enable and disable transmission on one RPG. Notice the following:
1: The stats on both increases (NIFI-4571)
2: Potentially, that the FlowFile was sent to the wrong instance.
Repeat with the other RPG and as needed (since the issue is non-deterministic).
This also appears to happen shortly after enabling both RPGs (GenerateFlowFile
stopped, enabled both RPGs, start/stop the GenerateFF relatively quickly to see
non-deterministic behavior).
This appears to have been fixed in 1.5.0 (I can't replicate) and I'm guessing
fixed with NIFI-3155. Logging this issue for explicit visibility of the bug
manifestation.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
