On Thu, 2015-09-03 at 09:15 +0530, Prashant Bapat wrote: > Hi, > > We have been using 389-ds as part of FreeIPA. In one of our environments, > we have 2 389-ds installations with replication. > > Randomly, the 389-ds on either of them completely freezes and there are > high number of CLOSE_WAITs on tcp/389 port. > > Only way to recover from this situation is to either reboot or "kill -9" > the ns-slapd process. Graceful restarts get stuck indefinitely. > > One curious thing when this happens, a search using "ldapsearch" command > seems to work but a search using a python-ldap client does not. FreeIPA > does not work either. > > Any pointers on troubleshooting this would be appreciated. How many threads have you got on your server? How long is your timeouts set for? Look for: nsslapd-threadnumber nsslapd-idletimeout nsslapd-ioblocktimeout You could have thread exhaustion occurring. -- William Brown <william@xxxxxxxxxxxxxxxx> -- 389 users mailing list 389-users@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/389-users