"ORA-02391: exceeded simultaneous SESSIONS_PER_USER limit" When Accessing PL/SQL Application (Doc ID 1339085.1)

Last updated on OCTOBER 21, 2016

Applies to:

Oracle HTTP Server - Version 11.1.1.2.0 to 11.1.1.5.0 [Release Oracle11g]
Information in this document applies to any platform.

Symptoms

Oracle HTTP Server 11.1.1.x is working fine but suddenly it is not responding to requests with the following error reported in HTTP Server error log ohs1.log:

[2011-06-27T15:47:06.0593+03:00] [OHS] [INCIDENT_ERROR:32] [OHS-9999] [core.c] [host_id: hostname.domain.com] [host_addr: 1.2.3.4] [tid: 1162631488] [user: root] [ecid: 004df3mrkMj2jKiAL7RL9Q0001Uy004dV9] [rid: 0] [VirtualHost: www.hostname.com:0] MODPLSQL-000058: mod_plsql: HTTP-503 ORA-2391 ORA-02391: exceeded simultaneous SESSIONS_PER_USER limit\n, referer: http://www.hostname.com/

Cause

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