[AMQ-3199] CRON next scheduled time incorrectly calculated

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.5.0
• Fix Version/s: 5.5.0
• Component/s: Broker

Environment

Windows Server 2003 with java 1.6.0_22

• Assignee: Timothy A. Bish
• Reporter: Erik
• Created: 05/Mar/11 05:29
• Updated: 13/Apr/13 06:11
• Resolved: 14/Mar/11 19:46

Description

A Cron Entry of "50 20 * * 5" with an AMQ_SCHEDULED_DELAY of 61000 (61 seconds) started at 2011-03-04 20:48:24. The last "5" in the Cron Entry specifies only Fridays and 2011-03-04 is a Friday. The cron job ran and set "next scheduled time" to be 2011-03-10 20:50:25. 2011-03-11 is a Thursday. The correct "next scheduled time" should be 2011-03-11 20:50:25; it should be Friday.

In addition, the reason why I set the delay to 61000 was because with the default delay of 0, the job executes twice with a 60 second interval. I will file a separate issue.

I believe the Cron Entry has a problem with using asterisks. I tried a Cron Entry of "27 19 1-31 1-12 6" which is a Saturday. It ran at 19:27 and then correctly set the "next scheduled time" to be on the next Saturday. This is a temporary workaround.

Issue Links

• relates to: AMQ-3200 Scheduled CRON jobs execute twice