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Server hangs or crashes while monitoring connections repeatedly attaching and detaching [CORE3011] #3392

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firebird-issue-importer opened this issue May 22, 2010 · 8 comments

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@firebird-issue-importer

Submitted by: Denis Nosov (dens256)

Reproduced with ISQL and .bat
With 10 concurrent connections running, at 20 hangs.
firebird.log is empty.

test.bat:
@echo off
for /L %%i in (1,1,10) do (
for /L %%j in (1,1,20) do start isql -u SYSDBA -p masterke -i _input.sql -o _output.txt "192.168.10.10:d:\Program Files\Firebird\Firebird_2_5\examples\empbuild\employee.fdb"
isql -u SYSDBA -p masterke -i _input.sql -o _output.txt "192.168.10.10:d:\Program Files\Firebird\Firebird_2_5\examples\empbuild\employee.fdb"
)

_input.sql:
with
nx as
(
select 0 i from rdb$database union all select 1 from rdb$database union all
select 2 from rdb$database union all select 3 from rdb$database union all
select 4 from rdb$database union all select 5 from rdb$database
)
select count(*) from nx n5, nx n4, nx n3, nx n2, nx n1, nx n0 where n5.i+n4.i+n3.i = n2.i+n1.i+n0.i;
select count(*) from mon$attachments;
with
nx as
(
select 0 i from rdb$database union all select 1 from rdb$database union all
select 2 from rdb$database union all select 3 from rdb$database union all
select 4 from rdb$database union all select 5 from rdb$database
)
select count(*) from nx n5, nx n4, nx n3, nx n2, nx n1, nx n0 where n5.i+n4.i+n3.i = n2.i+n1.i+n0.i;
exit;

Commits: 58b518a 1674db2

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@firebird-issue-importer firebird-issue-importer commented May 22, 2010

Modified by: @dyemanov

assignee: Dmitry Yemanov [ dimitr ]

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@firebird-issue-importer firebird-issue-importer commented May 22, 2010

Modified by: @dyemanov

status: Open [ 1 ] => In Progress [ 3 ]

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@firebird-issue-importer firebird-issue-importer commented May 23, 2010

Modified by: @dyemanov

summary: Server hangs when accessing a tables monitoring of concurrent connections => Server hangs or crashes while monitoring connections repeatedly attaching and detaching

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@firebird-issue-importer firebird-issue-importer commented May 23, 2010

Modified by: @dyemanov

status: In Progress [ 3 ] => Open [ 1 ]

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@firebird-issue-importer firebird-issue-importer commented May 23, 2010

Modified by: @dyemanov

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

resolution: Fixed [ 1 ]

Fix Version: 2.5 RC3 [ 10381 ]

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@firebird-issue-importer firebird-issue-importer commented Jul 29, 2010

Modified by: @dyemanov

Version: 2.5 RC1 [ 10362 ]

Version: 2.1.3 [ 10302 ]

Version: 2.5 Beta 2 [ 10300 ]

Version: 2.5 Beta 1 [ 10251 ]

Version: 2.1.2 [ 10270 ]

Version: 2.1.1 [ 10223 ]

Version: 2.5 Alpha 1 [ 10224 ]

Version: 2.1.0 [ 10041 ]

Fix Version: 2.1.4 [ 10361 ]

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@firebird-issue-importer firebird-issue-importer commented Feb 4, 2011

Modified by: @pcisar

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

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@firebird-issue-importer firebird-issue-importer commented Jan 18, 2016

Modified by: @pavel-zotov

QA Status: No test

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