Also, CA Support told me, in v8.x any Interface threshold polling (error rate, utilization rate) uses expensive SpectroWatch style calculations.
In v9 this is changed and improved. If you are polling a lot of interfaces in v8, this will contribute to load. --Mark ________________________________ Mark Serencha - Inforonics LLC - (m) +1-781-439-0519 - [email protected] <mailto:[email protected]> - ** Inforonics acquires Vigilant Enterprise Solutions ** <blocked::http://www.businesswire.com/portal/site/home/permalink/?ndmVie wId=news_view&newsId=20090818005912&newsLang=en> From: Mark Serencha Sent: Thursday, March 04, 2010 11:28 AM To: 'Lalit Tyagi'; spectrum Subject: RE: [spectrum] Spectrum Latenecy Hello Lalit, We ran into notification latency and crashing in 8.1 when the SpectroServer was extremely busy, and/or was receiving a large number (millions) of traps per day. The server hardware was new and very powerful, but as we added more devices and servers to monitor, the load became too much. (You didn't specify how long this environment has been in use, so I am speculating that it might be similar issue.) CA Support has a sizing tool that can advise whether you are over-taxing your environment. They will ask you for things such as: * Number of models in your SSDB o IIRC, 100,000 is a lot, but 200,000 may be too much * Number of events/day o We were killing the server at 4 million event/day. 2 million was tolerable but CA wanted us to get it lower. * Number of traps/day o Are you receiving TRAP STORM alarms on any devices? Are Cisco Syslog messages blasting your server? We had to silence some trappy devices. * Number of active SpectroWatches o This is hard to compute, but CA may be able to help you (it's been a while and I do not recall an easy way to count the active ones). * Your SpectroServer CPU / RAM specs When we moved to version 9, the improved threading reduced the load on the SpectroServer by 10%. That and silencing the chatty devices brought performance back to normal. HTH, --Mark S ________________________________ Mark Serencha - Inforonics LLC - (m) +1-781-439-0519 - [email protected] <mailto:[email protected]> - ** Inforonics acquires Vigilant Enterprise Solutions ** <blocked::http://www.businesswire.com/portal/site/home/permalink/?ndmVie wId=news_view&newsId=20090818005912&newsLang=en> From: Lalit Tyagi [mailto:[email protected]] Sent: Thursday, March 04, 2010 9:41 AM To: spectrum Subject: [spectrum] Spectrum Latenecy Hi List, We are using spectrum 8.1 (SP2) in our environment. Last week, spectrum was crashed and then we restarted spectrum server. Since then, spectrum working fine but having lot of delays in discovery any device, putting device in maintenance or getting device unreachable alarm. I have checked SS Performance table which shows Notification Latency around 800 sec. Does any one faces this problem? Any idea, how could I possibly check why spectrum having so much delays? Thanks Lalit ---------------------------------------- This message is intended exclusively for the individual(s) or entity to which it is addressed. It may contain information that is proprietary, privileged or confidential or otherwise legally exempt from disclosure. If you are not the named addressee, you are not authorized to read, print, retain, copy or disseminate this message or any part of it. If you have received this message in error, please notify the sender immediately by e-mail and delete all copies of the message. * --To unsubscribe from spectrum, send email to [email protected] with the body: unsubscribe spectrum [email protected] --- To unsubscribe from spectrum, send email to [email protected] with the body: unsubscribe spectrum [email protected]
