Daylight Savings Time and Cascade Server
Thursday, November 3rd, 2011 at 3:30pm -- Joel Baxter
We’ve had several clients ask us about whether Cascade Server will be affected by the U.S. change in Daylight Savings Time when we all set our clocks back an hour this Sunday at 2 am. We don't want you to lose any more sleep than you have to due to the time change, so this blog post will help you identify potential snags DST might cause and provide tips and resources to prevent them.
Scheduled Publishing
Although Cascade Server itself isn’t affected by DST, a small component within it can be affected if you are using Scheduled Publishing. Specifically with Destinations, Publish Sets, and Sites that are publishing your content out every n hours, then this setting will not respect DST changes. For example, if set to publish every 12 hours starting at 1:00 am, it will publish at 1:00 am and 1:00 pm. However, during Daylight Savings Time it will be publishing at 2:00 am and 2:00 pm. The best resolution for this issue is to convert all of your hourly set Scheduled Publish Sets to use cron style scheduling.
Java and Oracle Updates
It’s also a good idea to have the latest version of Java installed, and check with your database vendors for any updates. Oracle (formerly Sun) has published online information on Daylight Savings Time and the Java Runtime Environment. We recommend you install J2SE 6.0 Update 29 or later and that you apply the most recent timezone data via Oracle's tzupdater tool.
Database Vendors
For database vendors, only Microsoft SQL Server 2005 and Oracle 10g are affected by DST as they both need patches from their respective vendors. All other supported database vendors and versions should not be affected by DST changes. However, since these applications reference the system time, you should check with your operating system vendor for any applicable patches as well.
International Considerations
Please note the U.S. Congress changed Daylight Savings Time in 2007 to begin three weeks earlier and end a week later. Some countries are still evaluating whether they will adopt the new rules for themselves so we should anticipate more changes in the future regarding DST and time zone rules for countries that typically align with U.S. DST rules.
We hope this post will help ensure that you don't experience any troublesome issues because of DST other than having to adjust to a new sleep schedule.
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