Getting error "Attempt to release transaction in the wrong state"

[dobesv]

Jira Link: DB-2548
I have a job that is copying records from mongodb into yugabyte.

From time to time this script fails, getting an error back from yugabyte:

Remote error: Illegal state (yb/client/transaction.cc:518): Attempt to release transaction in the wrong state 55266d2c-bebb-4542-9a5b-f0e272d62a3f: kAborted\nCode: XX000

The operation is an upsert - INSERT ... ON CONFLICT UPDATE ...

I think it probably is a bug since I haven't done anything related to releasing transactions and so forth.

I don't have any practical way to reproduce this, it might take hours for my script to encounter it. But this issue can serve to track that this is occurring, maybe someone who understands the meaning of this error might think of a way to reproduce it using some kind of load inducing script.

[dobesv]

For now I'll workaround this by retrying the upsert if I get this error.