OHS Gives "Error Reading POST Data From Client" During High Load

(Doc ID 2368815.1)

Last updated on MARCH 02, 2018

Applies to:

Oracle HTTP Server - Version 12.2.1.2.0 and later
Information in this document applies to any platform.

Symptoms

On : 12.2.1.2.0 version, Apache Web Server and SOA

The application does not work consistently and a few requests are dropped during load.  The following errors are returned to the browser:

 

In the ORACLE_HOME/user_projects/domains/ohs/servers/ohs1/logs/ohs1.log shows these errors:

[2018-02-14T12:39:14.1708-05:00] [OHS] [ERROR:32] [OH99999] [weblogic] [client_id: IP] [host_id: HOST] [host_addr: IP] [pid: PID] [tid: TID] [user: USER] [ecid: ECID] [rid: 0:1:1] [VirtualHost:HOST:PORT] Error reading POST data from client \n
[2018-02-14T12:39:14.1709-05:00] [OHS] [ERROR:32] [OH99999] [weblogic] [client_id: IP] [host_id: HOST] [host_addr: IP] [pid: PID] [tid: TID] [user: USER] [ecid: ECID] [rid: 0:1:1] [VirtualHost: HOST:PORT] IO error reading client POST data; sys err#: [2] sys err msg [No such file or directory]


The issue can be reproduced at will with the following steps:
1. This happens while in load, and a few requests are always dropped because of this, so it is always reproduce it.
2. The OHS instance can write in /tmp/_wl_proxy but when changing to WLTempDir to another writable directory the problem remains


 

Changes

 

Cause

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