After Applying Patch 26032568 for High CPU Issue on Apache - Error Logs Report "oracle_sslSecureRead: spin on read/poll"

(Doc ID 2387400.1)

Last updated on APRIL 24, 2018

Applies to:

Oracle WebLogic Server - Version 12.2.1.1.0 and later
Information in this document applies to any platform.

Symptoms

After applying <Patch 26032568> to fix a High CPU issue when using WLS Proxy Plugin for Apache version 12.2.1.1 or 12.2.1.2, the following errors are seen in the Apache error logs:

[Tue Feb 06 10:45:38.412511 2018] [weblogic:error] [pid 28719] 0x558ee8d3d740: oracle_sslSecureRead: spin on read/poll (4)
[Tue Feb 06 10:54:01.371773 2018] [weblogic:error] [pid 31750] 0x558ee8d644c0: oracle_sslSecureRead: spin on read/poll (4)
[Tue Feb 06 11:22:23.293598 2018] [weblogic:error] [pid 41156] 0x558ee8d30530: oracle_sslSecureRead: spin on read/poll (4)
[Tue Feb 06 11:24:27.985190 2018] [weblogic:error] [pid 41299] 0x558ee8d5ee10: oracle_sslSecureRead: spin on read/poll (4)
[Tue Feb 06 11:38:54.404661 2018] [weblogic:error] [pid 45762] 0x558ee8d4f3e0: oracle_sslSecureRead: spin on read/poll (4)
[Tue Feb 06 11:43:29.228421 2018] [weblogic:error] [pid 47166] 0x558ee8d75de0: oracle_sslSecureRead: spin on read/poll (4)
[Tue Feb 06 11:52:55.038818 2018] [weblogic:error] [pid 49336] 0x558ee8d8acb0: oracle_sslSecureRead: spin on read/poll (4)
[Tue Feb 06 11:59:31.854575 2018] [weblogic:error] [pid 53175] 0x558ee8d64340: oracle_sslSecureRead: spin on read/poll (4)


There is no impact on end users because of these errors.

Cause

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