Sometime it is impossible to cancel\kill connection executing external query [CORE5685] #5951
Labels
affect-version: 2.5.0
affect-version: 2.5.1
affect-version: 2.5.2 Update 1
affect-version: 2.5.2
affect-version: 2.5.3 Update 1
affect-version: 2.5.3
affect-version: 2.5.4
affect-version: 2.5.5
affect-version: 2.5.6
affect-version: 2.5.7
affect-version: 3.0.0
affect-version: 3.0.1
affect-version: 3.0.2
affect-version: 4.0 Alpha 1
affect-version: 4.0 Initial
component: api / client library
fix-version: 2.5.9
fix-version: 3.0.3
fix-version: 4.0 Beta 1
priority: major
qa: done with caveats
type: bug
Submitted by: @hvlad
There is user reports that in some cases they can't kill connections. Memory dumps shows that such connection executed external query
and waits for responce from remote side. There is a suspicion that network between local and remote servers could be a reason.
Currently, when local connection is about to be killed, it send cancellation request to the remote side (if external query it executed, of course).
It seems that it could be not enough in some cases.
Commits: 5f896e8 c67eb9c 257c5c4
====== Test Details ======
Unstable results detected for 2.5.9 SuperClassic. Currently test contains min_version = 3.0.3 rather than 2.5.9.
Case for 2.5 will be more carefully tested later.
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