[AMQ-3273] Slave broker acquires lock file when Master is still alive (shared file system master/slave setup)

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 5.5.0
• Fix Version/s: 5.6.0
• Component/s: Message Store

Environment

Windows 7, Windows Server 2008

• Patch Info: Patch Available
• Assignee: Dejan Bosanac
• Reporter: Dariusz Szablinski
• Created: 06/Apr/11 15:03
• Updated: 20/Sep/11 10:41
• Resolved: 07/Apr/11 08:31

Description

The change introduced in AMQ-3237 has triggered issue with LockFile.lock() on Win7 and Win2k8. See comments to the JRE issue http://bugs.sun.com/view_bug.do?bug_id=6628575 (bottom of the page).

Suggested solution is to use this construction instead:
fc.lock( 0, Math.max( 1, fc.size() ), false );