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Top Forums UNIX for Advanced & Expert Users Handle Autosys with DST Changes Post 302452435 by girdharsourabh on Friday 10th of September 2010 11:12:10 AM
Old 09-10-2010
Handle Autosys with DST Changes

Hi,

I have one confusion regarding DST chnages which are going to happen after October. Smilie Smilie

I have few jobs on Autosys which run as per Japan Time. they shoudl not be affected by switiching off of DST time.
Our autosys instance server is based on UK which is running on BST these days. When it switches tom GMT after DST switch-off, logically all jobs will be delayed by one hour. (If you see from India/Japan perspective )

For jobs which are dependent on UK business will run fine because eventually Business hours will also have the same shift.

One solution I can figure out is use the attribute timezone in autosys jobs and change the start mins accordingly should work.

For eg. If now job runs at 00:30, now onwards the job will have attributes as timezone:Tokyo-z and start_times: 08:30 Smilie

Will that work fine without issue ??

I just want to confirm if anyone has faced this kind of similar issue like running job specific to one region on instance which is based in different timezone/region.

Thanks
Sourabh
 

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queuedefs(4)							   File Formats 						      queuedefs(4)

NAME
queuedefs - queue description file for at, batch, and cron SYNOPSIS
/etc/cron.d/queuedefs DESCRIPTION
The queuedefs file describes the characteristics of the queues managed by cron(1M). Each non-comment line in this file describes one queue. The format of the lines are as follows: q.[njobj][nicen][nwaitw] The fields in this line are: q The name of the queue. a is the default queue for jobs started by at(1); b is the default queue for jobs started by batch (see at(1)); c is the default queue for jobs run from a crontab(1) file. njob The maximum number of jobs that can be run simultaneously in that queue; if more than njob jobs are ready to run, only the first njob jobs will be run, and the others will be run as jobs that are currently running terminate. The default value is 100. nice The nice(1) value to give to all jobs in that queue that are not run with a user ID of super-user. The default value is 2. nwait The number of seconds to wait before rescheduling a job that was deferred because more than njob jobs were running in that job's queue, or because the system-wide limit of jobs executing has been reached. The default value is 60. Lines beginning with # are comments, and are ignored. EXAMPLES
Example 1: A sample file. # # a.4j1n b.2j2n90w This file specifies that the a queue, for at jobs, can have up to 4 jobs running simultaneously; those jobs will be run with a nice value of 1. As no nwait value was given, if a job cannot be run because too many other jobs are running cron will wait 60 seconds before trying again to run it. The b queue, for batch(1) jobs, can have up to 2 jobs running simultaneously; those jobs will be run with a nice(1) value of 2. If a job cannot be run because too many other jobs are running, cron(1M) will wait 90 seconds before trying again to run it. All other queues can have up to 100 jobs running simultaneously; they will be run with a nice value of 2, and if a job cannot be run because too many other jobs are running cron will wait 60 seconds before trying again to run it. FILES
/etc/cron.d/queuedefs queue description file for at, batch, and cron. SEE ALSO
at(1), crontab(1), nice(1), cron(1M) SunOS 5.10 1 Mar 1994 queuedefs(4)
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