bug in hobbitlaunch pause loop ?
Hi,
When setting the system clock way back, the hobbit client "stalls" and reports get purple. Maybe hobbitlaunch should verify the clock did not step back.
Thanks again for that great software Henrik !
-- Charles Goyard - charles.goyard at orange-ftgroup.com - (+33) 1 45 38 01 31
On Mon, Jun 11, 2007 at 03:59:59PM +0200, Charles Goyard wrote:
When setting the system clock way back, the hobbit client "stalls" and reports get purple. Maybe hobbitlaunch should verify the clock did not step back.
You'll have worse problems than simply hobbitlaunch stalling.
A lot of the Hobbit data collection is time-based; clocks jumping back causes all sorts of "interesting" things to happen with your RRD graphs and the history logs. Not to mention the alert-repeat mechanism.
Sure, I can fix the hobbitlaunch stalling (already have) and some other problems that will happen in parts of Hobbit when this occurs, but I cannot fix the data that has been stored with a wrong timestamp.
So having your server time-sync'ed with NTP to a known good clock is more or less a prerequisite for running Hobbit.
Regards, Henrik
What happens when the time gets set back in the fall as part of daylight savings?
Al
-----Original Message----- From: Henrik Stoerner [mailto:henrik at hswn.dk] Sent: Monday, June 11, 2007 11:19 AM To: hobbit at hswn.dk Subject: Re: [hobbit] bug in hobbitlaunch pause loop ?
On Mon, Jun 11, 2007 at 03:59:59PM +0200, Charles Goyard wrote:
When setting the system clock way back, the hobbit client "stalls" and reports get purple. Maybe hobbitlaunch should verify the clock did not step back.
You'll have worse problems than simply hobbitlaunch stalling.
A lot of the Hobbit data collection is time-based; clocks jumping back causes all sorts of "interesting" things to happen with your RRD graphs and the history logs. Not to mention the alert-repeat mechanism.
Sure, I can fix the hobbitlaunch stalling (already have) and some other problems that will happen in parts of Hobbit when this occurs, but I cannot fix the data that has been stored with a wrong timestamp.
So having your server time-sync'ed with NTP to a known good clock is more or less a prerequisite for running Hobbit.
Regards, Henrik
To unsubscribe from the hobbit list, send an e-mail to hobbit-unsubscribe at hswn.dk
This e-mail message and any attached files are confidential and are intended solely for the use of the addressee(s) named above. If you are not the intended recipient, any review, use, or distribution of this e-mail message and any attached files is strictly prohibited. This communication may contain material protected by Federal privacy regulations, attorney-client work product, or other privileges. If you have received this confidential communication in error, please notify the sender immediately by reply e-mail message and permanently delete the original message. To reply to our email administrator directly, send an email to: postmaster at orlandoregional.org . If this e-mail message concerns a contract matter, be advised that no employee or agent is authorized to conclude any binding agreement on behalf of Orlando Regional Healthcare by e-mail without express written confirmation by an officer of the corporation. Any views or opinions presented in this e-mail are solely those of the author and do not necessarily represent those of Orlando Regional Healthcare.
On UNIX systems, the clock will not change during "spring forward" or "fall back" DST operations. All that changes are the rules for calculating the timezone offset from the system clock for display purposes.
GLH
-----Original Message----- From: Jeffcoat, Al [mailto:Al.Jeffcoat at orhs.org] Sent: Monday, June 11, 2007 12:18 PM To: hobbit at hswn.dk Subject: RE: [hobbit] bug in hobbitlaunch pause loop ?
What happens when the time gets set back in the fall as part of daylight savings?
Al
-----Original Message----- From: Henrik Stoerner [mailto:henrik at hswn.dk] Sent: Monday, June 11, 2007 11:19 AM To: hobbit at hswn.dk Subject: Re: [hobbit] bug in hobbitlaunch pause loop ?
On Mon, Jun 11, 2007 at 03:59:59PM +0200, Charles Goyard wrote:
When setting the system clock way back, the hobbit client "stalls" and
reports get purple. Maybe hobbitlaunch should verify the clock did not
step back.
You'll have worse problems than simply hobbitlaunch stalling.
A lot of the Hobbit data collection is time-based; clocks jumping back causes all sorts of "interesting" things to happen with your RRD graphs and the history logs. Not to mention the alert-repeat mechanism.
Sure, I can fix the hobbitlaunch stalling (already have) and some other problems that will happen in parts of Hobbit when this occurs, but I cannot fix the data that has been stored with a wrong timestamp.
So having your server time-sync'ed with NTP to a known good clock is more or less a prerequisite for running Hobbit.
Regards, Henrik
To unsubscribe from the hobbit list, send an e-mail to hobbit-unsubscribe at hswn.dk
This e-mail message and any attached files are confidential and are intended solely for the use of the addressee(s) named above. If you are not the intended recipient, any review, use, or distribution of this e-mail message and any attached files is strictly prohibited. This communication may contain material protected by Federal privacy regulations, attorney-client work product, or other privileges. If you have received this confidential communication in error, please notify the sender immediately by reply e-mail message and permanently delete the original message. To reply to our email administrator directly, send an email to: postmaster at orlandoregional.org . If this e-mail message concerns a contract matter, be advised that no employee or agent is authorized to conclude any binding agreement on behalf of Orlando Regional Healthcare by e-mail without express written confirmation by an officer of the corporation. Any views or opinions presented in this e-mail are solely those of the author and do not necessarily represent those of Orlando Regional Healthcare.
To unsubscribe from the hobbit list, send an e-mail to hobbit-unsubscribe at hswn.dk
On Mon, 2007-06-11 at 13:17 -0400, Jeffcoat, Al wrote:
What happens when the time gets set back in the fall as part of daylight savings?
Nothing. The time is stored as UTC timeticks. It uses /etc/localtime to translate that into a local time designation.
Al
-----Original Message----- From: Henrik Stoerner [mailto:henrik at hswn.dk] Sent: Monday, June 11, 2007 11:19 AM To: hobbit at hswn.dk Subject: Re: [hobbit] bug in hobbitlaunch pause loop ?
On Mon, Jun 11, 2007 at 03:59:59PM +0200, Charles Goyard wrote:
When setting the system clock way back, the hobbit client "stalls" and reports get purple. Maybe hobbitlaunch should verify the clock did not step back.
You'll have worse problems than simply hobbitlaunch stalling.
-- Daniel J McDonald, CCIE # 2495, CISSP # 78281, CNX Austin Energy http://www.austinenergy.com
participants (5)
-
Al.Jeffcoat＠orhs.org
-
charles.goyard＠orange-ftgroup.com
-
dan.mcdonald＠austinenergy.com
-
greg.hubbard＠eds.com
-
henrik＠hswn.dk