For the last day or so, my application has been getting connection timeouts trying to connect to various Google APIs (Google Cloud Messaging API and the OAuth2 endpoints in particular). If I SSH into the server and just manually try 'telnet
www.googleapis.com 443' then connection succeeds and indeed most connections due go through in short order, but occassionaly the connections will just time out for no particular reason.
I've checked the usual suspects:
$ sysctl net.netfilter.nf_conntrack_count
net.netfilter.nf_conntrack_count = 1426
$ sysctl net.nf_conntrack_max
net.nf_conntrack_max = 65536
Nothing in any logs (except my application's logs, for the connection timeouts, but I don't think those are very helpful).
I run munin for performance monitoring, and it doesn't seem to have changed dramatically in the last month:
I'm not really a sysadmin so at this point, I'm not really sure what else to look for -- any pointers would be much appreciated!
Dean.