CBG-5031: fix panic for nil icebox map #84
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bbrks
requested changes
Jan 5, 2026
sender.go
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| if err := msg.Close(); err != nil { | ||
| sender.context.logFrame("Warning: Sender encountered error closing messages in icebox. Error: %v", err) | ||
| } | ||
| delete(sender.icebox, key) |
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I think this could result in a build up of goroutines or messages again that will never be cleared from the icebox (see the godoc comment referring to CBG-4572)
We're unintentionally still guarded today by the panic when things get put in the icebox after a close.
I think it would still be preferable to nil the icebox map but add a nil check to requeue to early exit to avoid putting more things in it? Both functions have their locks to avoid races between the two.
bbrks
approved these changes
Jan 6, 2026
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CBG-5031
Panic seems to happen when closing a sender's messages in icebox we seem to nil the icebox after. We should avoid this and just clear the messages in the icebox to avoid this panic.