0001033: CronResource with switch to daylight time causes multiple runs

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Category

Severity

Reproducibility

Date Submitted

Last Update

0001033

[Resin]

major

always

04-03-06 07:17

04-03-06 15:45

Reporter

anonymous

View Status

public

Assigned To

ferg

Priority

normal

Resolution

fixed

Platform

Status

closed

Projection

none

OS Version

ETA

none

Fixed in Version

3.0.19

Product Version

Product Build

Summary

0001033: CronResource with switch to daylight time causes multiple runs

Description

With CronResource, if there is a job scheduled to run during the 'missing' hour of a transition to daylight time, the job will be run over and over in the preceding hour until the daylight time transition.

We have a CronResource configured to run daily at 2:15 AM. When CronResource runs (or is initialized), it calculates the time of the next run. When it ran 1 Apr 2006 it calculated the time of the next run as 2:15 AM on 2 Apr 2006. Our time zone is America/New_York, so daylight time starts at 2:00 AM on 2 Apr 2006, jumping to 3:00 AM. The local time 2:15 AM 2 Apr 2006 doesn't really exist, so the run time became 1:15 AM 2 Apr 2006, and that's OK. However, when CronResource ran at 1:15 AM 2 Apr 2006, it calculated the next run time as 2:15 AM on 2 Apr 2006 again, corrected that to 1:15 AM 2 Apr 2006 again, and ran again, over and over, until the the daylight time switch at 2/3 AM.

A job that was configured to run once at 2:15 AM ran over and over from 1:15 AM until 2:00 AM.

Steps To Reproduce

Additional Information

Attached Files

Relationships

Notes
(0000994) anonymous 04-03-06 07:54	Resin versions: 3.0.18 and 3.0.14 OS: Windows XP Pro, Debian Sarge Java version: 1.5.0_06 Snippet from web.xml: <resource type="com.caucho.resources.CronResource"> <init> <!--<cron>/10</cron>--> <cron>15 2 * 1-7</cron> <work resin:type="com.example.job.DailyRunner"/> </init> </resource>

(0000998) ferg 04-03-06 15:45	server/1033

Issue History
Date Modified	Username	Field	Change
04-03-06 07:17	anonymous	New Issue
04-03-06 07:52	anonymous	Note Added: 0000993
04-03-06 07:53	anonymous	Note Deleted: 0000993
04-03-06 07:54	anonymous	Note Added: 0000994
04-03-06 15:45	ferg	Note Added: 0000998
04-03-06 15:45	ferg	Assigned To	=> ferg
04-03-06 15:45	ferg	Status	new => closed
04-03-06 15:45	ferg	Resolution	open => fixed
04-03-06 15:45	ferg	Fixed in Version	=> 3.0.19

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