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Coherence Cluster Servers are seeing a sudden spike in application threads and waits on Coherence Grid poll calls (Doc ID 2431990.1)

Last updated on AUGUST 22, 2023

Applies to:

Oracle Coherence - Version 3.7.1 to [Release AS10g to 12c]
Information in this document applies to any platform.



A customer has reported that in production environment, JVM has seen sudden spike in application threads from 25 to 280 within 5 minutes. The thread dump analysis just pointed all the waits on coherence. There are no networking issues observed and the issue happening only in production is not reproducible in lower environments. Cache servers are giving heap memory issues and proxy servers are shutting down. Cache data size has increased for some of the caches recently.




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