Yes. I have witnessed a similar phenomenon during provider induced outages. A client of ours had this issue when a switch at the provider's NOC would suddenly drop all communications. It would kill web mess within a few seconds, and very consistently.
-----Original Message----- From: Shad Pulley [mailto:[EMAIL PROTECTED] Sent: Friday, August 29, 2003 4:27 PM To: [EMAIL PROTECTED] Subject: RE: [IMail Forum] Mail servers unite and crash just before the holiday weekend!!! There doesn't seem to be any excessive disk activity.. Could hung user sessions contribute to such an anomaly? Our users are having a lot of dial in issues due to this worm that's floating around. It's excessive pings are crashing TNT MAX modem pools all over our network. Could a large amount of hung user sessions make IWEBMSG croak like this? Thanks, Shad D. Pulley Sr. Systems Engineer IKANO Communications [EMAIL PROTECTED] 801-415-8023 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Len Conrad Sent: Friday, August 29, 2003 4:54 PM To: [EMAIL PROTECTED] Subject: Re: [IMail Forum] Mail servers unite and crash just before the holiday weekend!!! >For some reason today, all 7 of my 7.15 servers are choking and dying.. >It's almost like they got together and decided a holiday weekend was the >best time to go 'on strike'. My two 8.02 servers are fine. What happens it >the iwebmsg service takes up 99% of the cpu cycles and then the box totally >locks up.. I can't find anything funny in the logs, I can't see anything >else out of the ordinary.. 7 is susceptible, 8 is immune Some kind of "poisonous" spam message, a bad msg txt format or attachment, getting through to probably many mailboxes on each server, which when read from the queue or from the mailboxes cause the smtp queue reader or iwebmsg to go get sick? when the machine locks up, or coming up to that point, is disk i/o excessive? Len _____________________________________________________________________ http://MenAndMice.com/DNS-training: London; San Jose; Wash DC IMGate.MEIway.com: anti-spam gateway, effective on 1000's of sites, free To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
