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What transaction support NiFi provides? Does it support XA transaction?

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Master Guru

NiFi processors have their own transaction concept called a session. Each processor starts a session, performs one or more operations, and then commits or rolls back the session.

You can see the general idea in the AbstractProcessor that many processors extends from:

https://github.com/apache/nifi/blob/master/nifi-api/src/main/java/org/apache/nifi/processor/Abstract...