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SOA JVM Crash Io.netty.util.ThreadDeathWatcher$Watcher High Heap Retention, Coherence Is a Reason? (Doc ID 2747034.1)

Last updated on FEBRUARY 16, 2024

Applies to:

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


Customer has reported that in Oracle SOA domain using latest Oct 2020 CPU across stack and noticing that after few days of JVM run, it crashes with heapdump. After analyzing using Eclipse MAT, io.netty.util.ThreadDeathWatcher$Watcher is holding high retention heap around 4-5GB in Old Gen. Suspecting that Coherence Cluster runtime could be contributing to it.



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