Showing posts with label reboot. Show all posts
Showing posts with label reboot. Show all posts

Monday, March 10, 2014

Exalytics: Stability problems after 208 days uptime

Last year, I learned a very good lesson about letting your servers go too long before reboot but this surprising issue affects the latest and greatest Oracle product: Exalytics.  My Oracle Support note 1579194.1 details what version of Linux OS are susceptible to "Oracle Exalytics Stability and Performance Issues on Compute Nodes Running Linux After Uptime of More Than 208 Days" which affects all releases and PSUs of Exalytics.

Symptoms include kernel panics, task scheduler issues, and CPU soft lockup errors!

Thursday, February 27, 2014

ALERT: Ethernet memory leak may cause network outage

Following on the heels of the ASM alert the other day, today I share with you MOS note ID 1622661.1 that outlines what firmware versions of the following devices are affected by a serious bug:
  • Sun Blade 6000 24-Port 10-Gigabit Ethernet Switched Network Express Module (NEM) (2073A-N)
  • Sun Network 10GE Switch 72p (2074A-F)
What's the issue here you ask?  Well, it seems that memory leaks each time an admin logs in and out of the switch on these platforms if they are NOT configured for HA (High Availability).  This causes an eventual critical issue where the switch will reboot causing network outages at durations which may not be regular and make it very hard to pinpoint the cause of the issue.