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Db on connect triggers fail to execute some time [CORE4761] #5064

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firebird-issue-importer opened this issue Apr 21, 2015 · 7 comments
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Submitted by: Lauri Zoova (lz)

Database connect trigger is not always not executed.

For example, given such trigger:

CREATE OR ALTER trigger trg_db_connect
active on connect position 0
AS
begin
rdb$set_context('USER_SESSION', 'ACTIVE_LANGUAGE', 'en');
end

The value "en" is sometimes not found after successfully connecting to the database. Typically the issue is observed when multiple attachments to the server (and same database?) are attempted at the same time.

Commits: 7105562 FirebirdSQL/fbt-repository@34898a9

====== Test Details ======

Race condition, see comments below.

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@firebird-issue-importer firebird-issue-importer commented Apr 21, 2015

Modified by: @asfernandes

assignee: Adriano dos Santos Fernandes [ asfernandes ]

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@firebird-issue-importer firebird-issue-importer commented Apr 21, 2015

Commented by: @hvlad

Reproduced.
The issue is due to race condition in MET_load_db_triggers - while one attachment loads triggers, another one could see it as already loaded empty vector.

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@firebird-issue-importer firebird-issue-importer commented Apr 21, 2015

Modified by: @hvlad

assignee: Adriano dos Santos Fernandes [ asfernandes ] => Vlad Khorsun [ hvlad ]

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@firebird-issue-importer firebird-issue-importer commented Apr 21, 2015

Commented by: @hvlad

Only SuperServer v2.5 is affected

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@firebird-issue-importer firebird-issue-importer commented Apr 21, 2015

Modified by: @hvlad

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Fixed [ 1 ]

Fix Version: 2.5.5 [ 10670 ]

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@firebird-issue-importer firebird-issue-importer commented May 30, 2015

Modified by: @pavel-zotov

status: Resolved [ 5 ] => Resolved [ 5 ]

QA Status: Cannot be tested

Test Details: Race condition, see comments below.

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@firebird-issue-importer firebird-issue-importer commented Sep 23, 2015

Modified by: @pcisar

status: Resolved [ 5 ] => Closed [ 6 ]

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