Many ldap Thread-### threads created in the JVM at once

Environment

• JBoss Enterprise Application Platform (EAP)
• Java

Issue

• We noted a growing amount of threads in our JVM and they are all generically named Thread-###. It looks like they have something to do with ldap.

Resolution

• These threads are tied to their com.sun.jndi.ldap.Connections. They would die when the ldap connections are closed. If seeing such a large amount, you should look into some better ldap connection pooling and reuse.

Root Cause

• A growing amount of ldap connections.

Diagnostic Steps

• Capture a thread dump and heap dump. Trace the ldap connections in the heap dump to what is referencing and preserving them.

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