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Yes, AdminServer.log is first place to start. Unless you find ANY log line saying something went down (can be monitoring system outside weblogics') you cannot even call oracle support with &quot;problem&quot; that has no material trail.<br />
<br />
Please produce few lines from AdminServer.log around whatvever &quot;stuck go down&quot; event happened.
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Yes, AdminServer.log is first place to start. Unless you find ANY log line saying something went down (can be monitoring system outside weblogics') you cannot even call oracle support with "problem" that has no material trail.

Please produce few lines from AdminServer.log around whatvever "stuck go down" event happened.

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Thanks gheist for your input, we will look in the AdminServer.log and look for any potential input. Will revert back.
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Thanks gheist for your input, we will look in the AdminServer.log and look for any potential input. Will revert back.

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Hi Expert,<br />
<br />
Need your help to understand, How to identify if any network issue (e.g., change in network switches) caused Weblogic server instances (in cluster) to stuck or go down. <br />
What should be the investigation procedure, any particular log file to look into.<br />
<br />
Pls Suggest
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Hi Expert,

Need your help to understand, How to identify if any network issue (e.g., change in network switches) caused Weblogic server instances (in cluster) to stuck or go down. 
What should be the investigation procedure, any particular log file to look into.

Pls Suggest

How to identify if any network issue caused Weblogic server instance(s) to stuck or go down

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.

Networking

Java application servers that support the Java EE platform and features include JOnAS from Object Web, WildFly (formerly JBoss AS) from JBoss, Geronimo from Apache, TomEE from Apache, Resin Java Application Server from Caucho Technology, Blazix from Desiderata Software, Enhydra Server from Enhydra.org, and GlassFish from Oracle. Commercial Java app servers include WebLogic by Oracle, WebSphere from IBM and the open source JBoss Enterprise Application Platform (JBoss EAP) by Red Hat.