Support for RH-SSO upgrade with zero downtime (rolling upgrades)

Solution Verified - Updated -


  • Upgrade / update with zero downtime / maintaining availability for existing clients
  • Rolling upgrade with zero downtime
  • Using Rolling deployment strategy results in the below error:

    01:40:03,870 ERROR [org.jgroups.protocols.TCP] (TransferQueueBundler,ejb,sso-prod-6-cgwdd) JGRP000029: sso-prod-6-cgwdd: failed sending message to sso-prod-5-4nhfv (66 bytes): connect timed out, headers: GMS: GmsHeader[VIEW_ACK], UNICAST3: DATA, seqno=76, TP: [cluster_name=ejb]


    11:17:10,918 WARN  [org.jgroups.protocols.TCP] (TcpServer.Acceptor [7600],null,null) JGRP000006: failed accepting connection from peer: packet from / has different version (4.0.20) from ours (3.6.13); discarding it


  • Red Hat Single Sign-On (RH-SSO)
    • 7
  • Red Hat OpenShift Container Platform (Openshift)
  • Upgrading to a newer version

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