[#CORE-2640] A regular deadlock may not be detected by the lock manager under some conditions, thus resulting in a hang

Firebird Core

A regular deadlock may not be detected by the lock manager under some conditions, thus resulting in a hang

Created: 25/Sep/09 04:14 AM Updated: 12/Nov/09 05:44 PM

Component/s:

Engine

Affects Version/s:

2.0.5, 2.1.2, 2.5 Beta 1, 2.5 Beta 2, 2.1.3

Fix Version/s:

2.5 RC1, 2.0.6, 2.1.4

Time Tracking:

Not Specified

Issue Links:

Relate

This issue is related to:

~~CORE-2000~~ Lock manager reported false deadlocks under high load

Planning Status:

Unspecified

Description

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It seems that the fix for ~~CORE-2000~~ was incomplete and may cause a hang if the just granted request doesn't have an assigned AST routine. In this case, it happened for transaction locks: transactions A and B wait for each others uncommitted versions and no deadlock is reported after the default interval of 10 seconds.

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