Re: Strange hang scenario, resumes after idletimeout, but plenty of FDs available

On 06/01/2011 08:43 AM, Kartik Subbarao wrote:

Are there any resources other than file descriptors that are freed up during the idletimeout processing? Are there any other parameters that can be tuned besides idletimeout here? Could it possibly be a case of deadlock somewhere, something grabbing all the locks? Would things like set_lk_max_locks be relevant to investigate here? Any log level settings that might reveal more of what's happening here?

Update: It's not a locks issue. I ran db4.8_stat -C A while one of the servers was in this hang state and there are plenty of locks available. Also another clarification -- all of the operations during the "bombardment" times in question are read operations from clients, no writes.

-Kartik