Ivan Kozlovic 91c84c03c2 [FIXED] LeafNode: possible duplicate messages in complex setup ...

This is specific to setup described [here](https://github.com/nats-io/nats-server/issues/3191#issuecomment-1296974382)
and does not require JetStream to be reproduced. The added test
reproduces the above setup but without JetStream enabled in
the accounts.

Each cluster has a leafnode for a given account to the other
cluster. The accounts import/export a subject. When a consumer
is connected to cluster "B" and the producer is on cluster "A"
there was a duplicate message. Due to shadow subscription caused
by the import/export rules, an additional subscription was
sent across the leafnode.

Resolves #3191

Signed-off-by: Ivan Kozlovic <ivan@synadia.com>

2022-11-03 12:34:01 -06:00

126 KiB

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