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Key: CORE-3325
Type: Bug Bug
Status: Closed Closed
Resolution: Fixed
Priority: Major Major
Assignee: Vlad Khorsun
Reporter: Vlad Khorsun
Votes: 0
Watchers: 1
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Firebird Core

At high load it is possible that new process could fail to map shared memory

Created: 02/Feb/11 08:56 AM   Updated: 04/Feb/11 01:33 PM
Component/s: None
Affects Version/s: 2.5.0
Fix Version/s: 2.5.1, 3.0 Alpha 1

Time Tracking:
Not Specified

Environment: Classic Server, Windows specific

Planning Status: Unspecified


 Description  « Hide
Test case is very artificial. There ir a lot (>= 150) of clients (isql) which connects to db, execute some script and disconnects, then repeat all over again and again. So we have a lot of connect\disconnect concurrently. If database is shutdown, then lifetime of CS process is very short, as it responds with isc_shutdown to the caller and quits.

Some time under this load i see in firebird.log :
Fatal lock manager error: inconsistent lock table version number; found 0, expected 17

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