Some Eclipse Foundation services are deprecated, or will be soon. Please ensure you've read this important communication.

Bug 320355

Summary:

Allow write through commits on FailOverParticipant (load balancing)

Product:

[Modeling] EMF

Reporter:

Erwin Betschart <erwin>

Component:

cdo.core

Assignee:

Eike Stepper <stepper>

Status:

CLOSED FIXED

QA Contact:

Eike Stepper <stepper>

Severity:

enhancement

Priority:

Keywords:

noteworthy

Version:

4.0

Target Milestone:

---

Hardware:

OS:

Linux

Whiteboard:

Power to the People

Attachments:

Description	Flags
Idea with a WriteThroughCommitContext	none
Patch v2 - for future reference	none

Description Erwin Betschart

2010-07-20 04:38:06 EDT

Build Identifier: 4.0

A FailOverParticipant in state BACKUP should be allowed to make write through commits (like the offline clone) to the master repository.

Reproducible: Always

Comment 1 Eike Stepper

2010-07-20 04:55:48 EDT

Created attachment 174716 [details]
Idea with a WriteThroughCommitContext

I'd prefer to use the remote session of the BACKUP's repository synchronizer directly to open a transaction on the MASTER. Please test if that suits your need and we can close this as WORKSFORME.

Comment 2 Eike Stepper

2010-07-20 05:11:06 EDT

Please reopen if the approach in comment #1 is not adequate for you.

Comment 3 Erwin Betschart

2010-08-06 11:16:16 EDT

Your proposal has two main drawbacks in our case:

1. On state change of the repository the remote session gets deactivated / activated. Therefore I would have to rebuild the data structure on state change.

2. The remote session does not cache the revisions.

Comment 4 Eike Stepper

2010-08-08 03:43:51 EDT

Created attachment 176102 [details]
Patch v2 - for future reference

This new feature must be explicitely enabled in CDOServerUtil.createFailoverParticipant(), see last parameter "allowBackupCommits".

Comment 5 Eike Stepper

2010-08-08 03:44:12 EDT

Committed to HEAD

Comment 6 Eike Stepper

2011-06-23 03:41:41 EDT

Available in R20110608-1407