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[FIXED] Duplicate queue subs over leafnodes with hub stream import/export with possible dataloss #4299

Merged
merged 1 commit into from Jul 11, 2023
Merged

[FIXED] Duplicate queue subs over leafnodes with hub stream import/export with possible dataloss #4299

merged 1 commit into from Jul 11, 2023

Commits on Jul 11, 2023

  1. When a queue subscriber was updated multiple times over a leafnode co… 

    …nnection we added in more shadow subscriptions which could become zombies when the connection went away.

In a case where a leafnode server had multiple queue subscribers on the same queue group, the hub server would add in multiple shadow subs. These subs would not be properly cleaned up and could lead to stale connections being associated with them.

Signed-off-by: Derek Collison <derek@nats.io>
    @derekcollison
    derekcollison committed Jul 11, 2023
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