Yeah I have already done some tuning on the operating system like the file descriptors and some tcp configurations. Also I have done some tuning on the LDAP server side which includes more threads and unlimit the timeout and size of queries amongst other things. Could this be a problem if I use Sun One Directory Server? I have also specified the IP of the LDAP server in the control file and other suggestions that I have seen in this and other lists. Still I receive that error we have taken down the concurrency level until we found that at 120 concurrencies the error doesn't show. I don't know what is wrong hehe.
----------------------------------------------------- Jose R. Roca Jroca at coqui dot net >-----Original Message----- >From: Claudio Jeker [mailto:cjeker@;diehard.n-r-g.com] >Sent: Friday, October 25, 2002 2:52 AM >To: [EMAIL PROTECTED] >Subject: Re: Qmail-ldap connection errors... > > >On Thu, Oct 24, 2002 at 06:52:06PM -0400, Jose Roca wrote: >> Hi I'm currently installing qmail-ldap con Solaris 8. We want this >> server to handle high loads of emails so during the initial tests we >> found that we were getting an ldap connection error. >> >> @400000003db80413091b6db4 delivery 35324: deferral: >> Unable_to_contact_LDAP_server_(bad_server_address_or_server_down?)._(L >> DA >> P-ERR_#205) >> >> This error occurs when we set the concurrency to a high value. We have >> it setup on 500 right now but this error occurs when it reaches >> 326/400 concurrencies. >> >> Has anybody seen this error? Our queue goes down very slowly mainly >> due to this problem. >> >Limit of the LDAP server? Perhaps it can not handle more than ~500 simultanious connections. > >System limit? Perhaps your out of file descriptors (group limit or system limit). On BSD you can alter that with limit, login.conf and sysctl. > >I would say tune your LDAP Server first. > >-- >:wq Claudio >
