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From "eurotrans-Verlag" <>
Subject RE: AJP-APR failures on Tomcat 7.0.16 with ISAPI Redirector 1.2.32
Date Tue, 12 Jul 2011 19:07:49 GMT
> However, when I switch to AJP BIO, it seems that the errors go away.

Although I now switched to AJP-BIO (by deleting/renaming tcnative-1.dll),
today morning I got an error again in the ISAPI log:

[Tue Jul 12 06:04:49.812 2011] [4124:2444] [error]
ajp_connection_tcp_get_message::jk_ajp_common.c (1296): wrong message format
0xdaed from
[Tue Jul 12 06:04:49.825 2011] [4124:2444] [error]
ajp_get_reply::jk_ajp_common.c (2148): (worker1) Tomcat is down or network
problems. Part of the response has already been sent to the client

This is how the AJP connector is configured in Tomcat:

<Connector port="8019" protocol="AJP/1.3" redirectPort="8743"
URIEncoding="UTF-8" maxThreads="1024" />

Any idea what could cause this errors?

I don't know it that matters, but with one webapp, I'm using COM4J to access
COM objects on the Windows system (but I want to get rid of it in the


Konstantin Prei├čer

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