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Bug 315407

Summary:

Stale references can occur if one of two commits deletes a reference target

Product:

[Modeling] EMF

Reporter:

Eike Stepper <stepper>

Component:

cdo.core

Assignee:

Eike Stepper <stepper>

Status:

CLOSED FIXED

QA Contact:

Eike Stepper <stepper>

Severity:

normal

Priority:

CC:

cyril.jaquier, erwin

Version:

3.0

Target Milestone:

---

Hardware:

OS:

Windows 7

Whiteboard:

Attachments:

Description	Flags
Patch v1	none
Testcase	stepper: iplog+

Description Eike Stepper

2010-06-02 10:53:45 EDT

Commit 1 adds a reference to object X.
Commit 2 detaches X.

Both can happen at the same time when the commits arrive at the server, so no client logic can detect and prevent this scenario.

Comment 1 Eike Stepper

2010-06-02 11:02:41 EDT

Created attachment 170811 [details]
Patch v1

Comment 2 Eike Stepper

2010-06-13 05:18:26 EDT

Committed to HEAD

Comment 3 Eike Stepper

2010-06-19 02:04:29 EDT

The boolean configuration property of the server to control this behaviour is IRepository.Props.ENSURE_REFERENTIAL_INTEGRITY = "ensureReferentialIntegrity". The same property is used to control the behaviour of bug 316434.

Comment 4 Eike Stepper

2010-06-29 04:35:55 EDT

Available in 3.0 GA:
http://download.eclipse.org/modeling/emf/cdo/updates/3.0-releases/

Comment 5 Erwin Betschart

2010-07-22 08:42:12 EDT

Created attachment 174963 [details]
Testcase

Testcase which shows that it is possible to lock detached target objects.

I confirm to
1) The number of lines that you changed is smaller than 250.
2) You are the only author of these changed lines.
3) You apply the EPL to these changed lines.

Comment 6 Erwin Betschart

2010-07-22 08:42:27 EDT

Please reopen.

Comment 7 Eike Stepper

2010-07-22 11:17:01 EDT

Reopening for investigation...

Comment 8 Eike Stepper

2010-07-22 11:19:00 EDT

This is a 3.0 bug, can you please open a new one?

Comment 9 Erwin Betschart

2010-07-23 02:29:10 EDT

Opened bug 320690

Comment 10 Eike Stepper

2011-06-23 04:27:49 EDT

Moving all open problem reports to 4.0

Comment 11 Eike Stepper

2012-09-21 06:51:00 EDT

Closing.