Re: Strange error LDAP Server Down (80)

[ryanb@netscape.com (Ryan Barton)]

manoj.b.mane@Cummins.com wrote:

> Sometimes whenver there is any kind of  LDAP operation my java programs
> throws error saying is server down(80) when actually server is not down.
> and this error is very unpredictable sometime it comes and sometime it
> does  not come. anybody faced similar kind of problem before  please let me
> know if so.
>  

Greetings,

Assuming that you've done the dilligence of checking the access log and 
the like, this is probably not an OpenLDAP issue, but more of a Java 
library issue.  If you are using connection pooling, you may be running 
into connections that are falling off because of TCP timeouts or whatnot 
(your app has opened a certain number of connections to the directory 
server, but doesn't use them for "X" amount of time).  You can work 
around the problem by either checking the connection your app will be 
using, and making sure it is "live" before actually letting the app use 
it, or change what you're using for connection pooling.  We've run into 
this problem with the 4.16 versions and older of the Netscape Java SDK 
(forthcoming versions fix this problem, and your application is assured 
a "live" connection every time).

I'm making lots of assumptions here, but in the face of little 
information, lots of assumptions are usually the inevitable product.

-rsb