Server NIC Flap Caused Coherence Cache To Go Endangered State
Last updated on MARCH 17, 2017
Applies to:Oracle Coherence - Version 22.214.171.124 and later
Information in this document applies to any platform.
Customer was NIC flapping on a physical machine while the coherence cluster was running. The NIC speed was going up and down while doing the NIC flapping, between 100MB and 1GB. Customer noticed that members/servers in the coherence cluster throwing thread dumps while NIC flapping was carried. There was also change in the cluster cache services statusHA reporting, from MACHINE-SAFE to NODE-SAFE/ENDANGERED.
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