OHS 12c SSL to WLS Fails with HALF_OPEN_SOCKET_RETRY Errors (Doc ID 2307148.1)

Last updated on DECEMBER 26, 2023

Applies to:

Symptoms

When accessing Oracle HTTP Server 12c using https, to reach an application deployed to WebLogic Server, an error is seen in browser shows an Apache bridge error as below:

Failure of Web Server bridge:
--------------------------------------------------------------------------------
No backend server available for connection: timed out after 10 seconds or idempotent set to OFF or method not idempotent

There can be many reasons for that error in the browser, (<Note 1304095.1>), but the key here is a HALF_OPEN_SOCKET_RETRY error in the OHS error log as below:

[OHS] [ERROR:32] [OH99999] [weblogic] [client_id: xxx.xxx.xxx.x] [host_id: hostname] [host_addr: xxx.xx.xxx.xxx] [pid: <PID>] [tid: <TID>] [user: <USERNAME>] [ecid: ecid] [rid: 0] [VirtualHost: main] *******Exception type [HALF_OPEN_SOCKET_RETRY] (attempt to read from disconnected socket:Was unexpected EOF) raised at line 792 of URL.cpp

Cause

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