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Slow Deployment of Spring App in a Large Cluster (Doc ID 2710760.1)

Last updated on SEPTEMBER 24, 2020

Applies to:

Oracle WebLogic Server - Version 12.2.1.4.0 and later
Information in this document applies to any platform.

Symptoms

Deploying a 30 mega WAR file in a cluster with 12 members, takes 2 minutes if no server is running.
It takes more time, if more files are running or if the cluster has more members.
When all the servers are running, it takes 6 minutes.
Thread dumps with specific frequency (each 30 seconds) were collected at the managed servers observing this pattern, especially for the slowest managed servers:


This thread is representing partially how the Spring app is started up, and most interesting, where it got stuck.

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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