My Oracle Support Banner

E-OS: Getting "SSLHandshakeException: Received fatal alert: certificate_unknown" in OSCLUSTER.log (Doc ID 3076870.1)

Last updated on MARCH 19, 2025

Applies to:

PeopleSoft Enterprise PT PeopleTools - Version 8.59 and later
Information in this document applies to any platform.

Symptoms

Gettting warning messages in OS_HOME/pt/Opensearch<version>/logs/OSCLUSTER.log

[2025-02-26T11:52:44,948][WARN ][o.o.h.AbstractHttpServerTransport] [XXXXXXXXXX.XX.cXXXXX.XX.XX] caught exception while handling client http traffic, closing connection Netty4HttpChannel{localAddress=0.0.0.0/0.0.0.0:9200, remoteAddress=null}
io.netty.handler.codec.DecoderException: javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate_unknown

Changes

After SSL configuration in Opensearch by following our solution below:

E-ES: E-KB: Instructions to Configure TLS/SSL in Elasticsearch and Kibana for PeopleSoft Search Framework (Doc ID 2919558.2) 

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
Symptoms
Changes
Cause
Solution
References


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.