>I have managed to get a top snap shot of when a user sends mail to all users : >11382 root 9 0 48028 46M 4096 S 12.2 4.6 0:28 slapd >14097 root 9 0 48028 46M 4096 S 11.6 4.6 0:24 slapd >13996 root 9 0 48028 46M 4096 S 11.6 4.6 0:23 slapd > 5188 root 9 0 48028 46M 4096 S 11.5 4.6 0:32 slapd <snip> >.... the list goes on and on and on with loads of slapd's that are not being >used, I have about 200 threads, which is what it is set to in my slapd.cong file.
200 threads doesn't mean anything bad, it just means that's how many processes are _available_ to be used. If they're sitting there idle, it's not a problem. >As you can see, my processor usage shoots through the roof! >Can anyone tell me what is happening here? Is this normal? No, it's not normal. It means that the daemon (probably) is having to search the entire directory because the mail server is trying to lookup a value from some attribute that is not indexed. This is probably a bit of overkill, but this is what I index on my qmail-ldap: # Indices to maintain index cn,sn,uid pres,eq index mail,mailAlternateAddress eq index objectClass eq Another note. If you have an index defined for "mailAlternateAddress", but none of your entries have a value for the mailAlternateAddress, then no index has been created. If no index is found, the server searches the entire directory for the information (symptoms that your directory access is showing). Add the entry that it's searching for to one of your users, shut down the ldap server, run slapindex, then restart the server. Now repeat your test. I actually added a user named "dummy" and put a value in the attribute that was missing from all the rest. That solved all problems. Note that I didn't have to reindex. That's because I added the ldif using ldapadd instead of slapadd. Doing it that way (ie online) makes slapd create the indexes that it needs. I am unaware if the recent versions of openldap will actually create a null index for those attributes that don't have any values in any of the entries in the directory. -- Blue skies... Todd Public key: http://www.mrball.net/todd.asc ...and I will strike down upon thee with great vengeance and furious anger, those who attempt to poison and destroy my binaries, and you will know my name is root, when I lay my vengeance upon you.
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