Oracle Coherence Cluster Member Departure at Fixed Times Due To Reduced Network Performance. (Doc ID 3079736.1)

Last updated on APRIL 02, 2025

Applies to:

Oracle Coherence - Version 12.2.1.4.0 and later
Information in this document applies to any platform.

Daily, at either 14:00 or 16:00, a member of the Oracle Coherence cluster leaves the cluster, resulting in the departure of all services hosted by that member.
The affected member and port vary from day to day.
An IOException is typically logged after the member's departure.
The issue occurs on a cluster composed of 7 physical servers (DELL R6615) running Windows 2022 Standard with multiple NICs configured as a NIC team.
There are 133 members in the cluster, and the JDK version is 1.8.0.291.
Scheduler service, agents (AV and Endpoint), client access, and external scanning are all disabled.
Datagram, MessageBus, and Multicast testing are successful.
Network switch statistics do not indicate excessive packet loss or errors.
The problem is specific to this hardware configuration, as other clusters with identical software setups do not exhibit the issue.
Network traces have not revealed any external factors causing the problem.

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In this Document

Symptoms

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