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Bug 451791 - parallel access to a database does not work
Summary: parallel access to a database does not work
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: sqlite
Version: rawhide
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Stepan Kasal
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On: 450664
Blocks: 449433
TreeView+ depends on / blocked
 
Reported: 2008-06-17 13:28 UTC by Stepan Kasal
Modified: 2008-06-17 14:45 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2008-06-17 14:45:34 UTC


Attachments (Terms of Use)
test script (deleted)
2008-06-17 13:28 UTC, Stepan Kasal
no flags Details

Description Stepan Kasal 2008-06-17 13:28:33 UTC
Two processes should be able to access the same database file simultaneously,
provided they commit timely.

3.5.8-1.fc10
The problem does not appear with 3.5.6-1.fc9 nor with 3.5.9.

See the attached reproducer.

With working sqlite, the output is:

$ ./t07busy8-lock
Ready

With a broken sqlite build, this is followed by two error messages:

DBD::SQLite::db do failed: database is locked(5) at dbdimp.c line 403 at ./t07bu
sy8-lock line 45, <READER> line 1.
Issuing rollback() for database handle being DESTROY'd without explicit
disconnect() at ./t07busy8-lock line 45, <READER> line 1.

According to my tests, this is fixed in sqlite-3.5.9, so if the suggestion from
bug #450664 is accepted, this should disappear.

Comment 1 Stepan Kasal 2008-06-17 13:28:33 UTC
Created attachment 309615 [details]
test script

Comment 2 Stepan Kasal 2008-06-17 14:45:34 UTC
sqlite has been updated, which should solve this issue as well


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