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A NULL coordinator shouldn't be fatal #4020

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merged 6 commits into from
Nov 4, 2022

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emasab
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@emasab emasab commented Oct 17, 2022

When a PID epoch bump is requested and the producer is waiting
to reconnect to the transaction coordinator, a failure in a find coordinator
request could cause txn_curr_coord to be set to NULL and an assert to fail.
This was fixed by retrying when the coordinator is known.

if an failed FindCoordinatorRequest sets txn
coordinator to NULL just after it reconnects.
@emasab emasab force-pushed the bugfix/idempotent-assertion-current-coordinator branch from aa8a036 to 6c6e108 Compare October 17, 2022 17:36
@emasab emasab marked this pull request as ready for review October 17, 2022 17:36
@emasab emasab force-pushed the bugfix/idempotent-assertion-current-coordinator branch from 6c6e108 to 5099f4f Compare October 17, 2022 17:49
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@edenhill edenhill left a comment

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Great stuff, some minor changes needed

tests/0105-transactions_mock.c Outdated Show resolved Hide resolved
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the fatal error rd_kafka_idemp_pid_fsm: Assertion
`rk->rk_eos.txn_curr_coord' failed
@emasab emasab force-pushed the bugfix/idempotent-assertion-current-coordinator branch from 5099f4f to b8b5864 Compare October 19, 2022 11:54
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LgTM!

@edenhill edenhill merged commit e98340b into master Nov 4, 2022
@edenhill edenhill deleted the bugfix/idempotent-assertion-current-coordinator branch November 4, 2022 12:37
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2 participants