Stuck in Infinite Loop at Chunk.tail() with High CPU Consumption
(Doc ID 2281213.1)
Last updated on AUGUST 12, 2021
Applies to:Oracle WebLogic Server - Version 184.108.40.206.0 to 220.127.116.11.0 [Release 12c]
Oracle Service Bus - Version 18.104.22.168.0 to 22.214.171.124.0
Information in this document applies to any platform.
Under high load, Weblogic is stuck in an infinite loop at Chunk.tail() with High CPU Consumption with the following stack trace:
This rare issue happens satisfying all the following conditions:
- AsyncResponseHandler is used to receive outbound HTTP response asynchronously from a remote HTTP server.
- -Dhttp.keepAlive=false is set for outbound HTTP request and response.
- High load condition (e.g. 50+ WLS execute threads running simultaneously)
- Enough WLS execute threads in a thread pool (e.g. increasing self-tuning-thread-pool-size-min)
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