https://bugs.openldap.org/show_bug.cgi?id=9488
--- Comment #4 from Quanah Gibson-Mount quanah@openldap.org --- (In reply to chantechie from comment #3)
Appreciate your speedy response on this, but tomcat Devs are saying that application is waiting for response from openLDAP, that is the reason threads are in waiting state and threads are waiting forever as no ldap connection timeout is defined in Java code.
Can we conclude from openLDAP logs, that ldap doesn't have any issues.
The ITS system is not a support channel. If you have support questions, you can try using the openldap-technical@openldap.org mailing list. If you want to pay for support, there is a list of companies that provide paid support listed on the website.
Again, the version you state you are using is 8 years old. The current release is 2.4.57. It's possible you've hit a bug in that ancient of a release, but no one's going to try and track that down for you.
If you want to try the -technical route, you'll need to provide logs from the server at stats level that demonstrate that tomcat sent a request for which openldap never responded back. And again, you'd need to do that running a current release.