So I guess this will teach me to be off of the list for an extended
period of time. I was essentially under the impression that this DST was
really an OS change and we would not have to make any changes on the
application side. My bad. 

 

We're on ARS 6.0.3 patch 16, WIN2k, SQl2k, no Midtier, we are using web
services for one piece of functionality. According to the pdf table on
the BMC web site I would need to install patch 20 in order to keep
everything in sync. There seems to be a lot of problems with patch 20. I
am thinking how bad could it be if I don't apply this patch. Anybody
care to give an opinion on this course of action?

 

Thanks,

 

Roger A. Nall

Manager, OSSNMS Remedy

T-Mobile USA

Desk: 813-348-2556(New)

Cell: 973-652-6723

FAX: 813-348-2565

sf49fanv     AIM IM

RogerNall   Yahoo IM

 

________________________________

From: Action Request System discussion list(ARSList)
[mailto:[EMAIL PROTECTED] On Behalf Of Kaiser Norm E CIV USAF 96
CG/SCWOE
Sent: Tuesday, February 27, 2007 12:41 PM
To: arslist@ARSLIST.ORG
Subject: Re: DST and Time Calculation White Paper?

 

So then what's all the talk we've been hearing of, "Set the server to
GMT! Set the server to GMT!" I don't see what that would get you.

 

________________________________

From: Action Request System discussion list(ARSList)
[mailto:[EMAIL PROTECTED] On Behalf Of Easter, David
Sent: Tuesday, February 27, 2007 11:23 AM
To: arslist@ARSLIST.ORG
Subject: Re: DST and Time Calculation White Paper?

 

Both the client and server use the operating system for localtime
calculations.  The Mid-Tier, web services and import/export use a 3rd
party library supplied within AR System or Java for localtime
calculations.  This is why the technical bulletin refers to these
functions in explicitly and why the patches for 6.3 and 7.0.01 contain
an updated version of these libraries and/or require the patched
versions of Java.

 

The conversion is done at the client for client queries, displays or
submissions.  It's done at the server for workflow driven manipulations
(e.g. push field) of date/time information.

 

Thanks,

 

-David J. Easter

Sr. Product Manager, Service Management Business Unit

BMC Software, Inc.

 

The opinions, statements, and/or suggested courses of action expressed
in this E-mail do not necessarily reflect those of BMC Software, Inc.
My voluntary participation in this forum is not intended to convey a
role as a spokesperson, liaison or public relations representative for
BMC Software, Inc.

 

________________________________

From: Action Request System discussion list(ARSList)
[mailto:[EMAIL PROTECTED] On Behalf Of Kaiser Norm E CIV USAF 96
CG/SCWOE
Sent: Tuesday, February 27, 2007 8:34 AM
To: arslist@ARSLIST.ORG
Subject: DST and Time Calculation White Paper?

** 

Hi all:

 

I'm still trying to wrap my head around all the DST ramifications for
5.1.2, and I guess I'm thinking it would help if I had a technical white
paper or other document that specifies exactly how Remedy 5.1.2
calculates time and time conversions.

 

Here's my thinking:

 

The Remedy server stores all time values as Unix time, which is the
total of seconds since 1 January 1970 GMT.  Time values, then, get
stored in a number field in the database (as opposed to a date/time
field).  Accordingly, if a user passes a date and time in a search
query, Remedy must convert the date and time supplied by the user to the
equivalent Unix time.  It must do this by first adding or subtracting
the appropriate number of hours based on the time zone and then possibly
add an hour for DST.

 

If you run such a query, which piece of Remedy does this conversion
before the query is passed to the underlying database? Is it the server
or the client? Does the client do the time conversion before the query
is passed to the server or does the client just pass the query to the
server as-is and the server does the time conversion?

 

If the server does the time conversion, is it saying, "OK, I got a time
value in this query I'm to execute.  So let me convert the time to
something I truly understand.  So let's see now...what time zone am I
in...and are we observing daylight savings time?" I assume, then, that
the server queries the operating system for the timezone??? And does it
query the operating system for whether or not the time zone is currently
observing DST? It can't, in my mind, otherwise there wouldn't be a bug.
It must be calculating whether or not DST is being observed itself based
on its own internal date/time algorithm? Yes?

 

Does anyone know the answers to these issues or know of a whitepaper
that definitively describes how Remedy calculates time?

 

Thanks,

Norm

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