Intermittent LDAP login failures due to LDAP response read time out
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Issue
- With large LDAP directories, user login can sometimes fail if the LDAP query takes longer than the configured read timeout (default value is 500ms)
WARN [http-bio-exec][LDAPAuth:176] Failed to bind to the LDAP server with ...
javax.naming.NamingException: LDAP response read timed out, timeout used:500ms.
Environment
- Portal 6.2, DXP 7.0, DXP 7.1, DXP 7.2
Resolution
- Increasing the read timeout to a greater value to allow the query to complete before the timeout by setting the following property in portal-ext.properties (for Portal 6.2)
ldap.connection.com.sun.jndi.ldap.read.timeout=500
- For DXP 7.0 and higher, the read timeout can be configured in the Control Panel > System Settings > LDAP Connection Properties
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