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Thousands of IDLE Sockets from Java Applications After Updating from 11.4 SRU 24 to 11.4 SRU 27-> SRU 31 (Doc ID 2777837.1)

Last updated on MAY 24, 2021

Applies to:

Solaris Operating System - Version 11.4 and later
Information in this document applies to any platform.

Symptoms

Two primary symptoms

1) hundreds of thousands of IDLE (unbound/un-numbered) TCP sockets - for both IPv4 and

 2) net-snmp is non-functional, in some type of "busy loop" - consuming CPU and not responding to monitoring software (snmp queries)

Changes

The customer upgraded from Solaris 11.4 SRU 24 (11.4.24.75.2) to Solaris 11.4 SRU 29 (11.4.29.82.3) - and also tried upgrading to Solaris 11.4 SRU 31 (11.4.31.88.5) - both newer SRUs exhibited the issue. They were using the Solaris bundled java / jdk to run their java application(s).   The Java version was also upgraded, from 1.8.0.261 to 1.8.0.271. 

Note: The bundled Solaris java is not licensed for commercial use by customer applications - it exists solely to support Solaris bundled software.  See the Java Licensing FAQ.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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