I’m using xinetd forwarding to allow a number of compute nodes that don’t have a direct path to our ldap server to get forward on by a host that does. When running a highly parallel job that starts over 1K instances at the same time, I see all these xinetd instances also start up on my forwarding server and in fact they don’t seem to go away, at not any time soon. Meanwhile back on my ldap server I see number of ‘too many open files’ errors in /var/log/messages and if I try to “su user” on one of the nodes I’ll see it hang for awhile. I have bumped the number of open files very high on the ldap server and in fact:
[root@aicgateway ~]# cat /proc/sys/fs/file-nr
5610 0 201116
So out of a pool of 200K we’re only using 5K.
Anyhow, I’m wondering if there are any special tricks to configuring the environment to handling this type of load on ldap OR should it be able to handle it the way I’m currently configured? Any special tuning hints? Any more info I can supply?