PutSQL if Node die

[#1]

Hi All,

I have the theoretical question.

What happened if PutSQL sent the request to SQL server and exactly in this time Node failed(die/power shutdown).

PutSQL did not receive the answer from the SQL server if rows were inserted or not.

What does happen in this way? Will this rows be sent one more time? or will be sent to fail connection?

Or something else will happen?

Thanks

[#2 · Accepted solution]

@Ilya Li

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Each NiFi processor component must complete its execution before the triggering FlowFile is routed to one of the outbound relationships from the incoming connection.
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Using you example:
the PutSQL processor would execute based on an incoming Flow or batch of incoming FlowFiles. Should NiFi completely die in the middle of the scheduled execution. Upon NiFi recover the FlowFile or Batch of Flowfiles would still be located on incoming connection to the putSQL processor and the same execution would occur again.

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Thank you,

Matt

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