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Asked: 2026-05-29T05:30:27+00:00

I’m troubleshooting an existing webservice. It previously worked just fine, but now SOAP-based requests

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I’m troubleshooting an existing webservice. It previously worked just fine, but now SOAP-based requests to the postgreSQL database result in an “unknown error: Error Fetching http headers” error.

In looking up this problem, I come across the following tip:

When you get errors like: “Fatal error: Uncaught SoapFault exception:
[HTTP] Error Fetching http headers in” after a few (time intensive)
SOAP-Calls, check your webserver-config.

Sometimes the webservers “KeepAlive”-Setting tends to result in this
error. For SOAP-Environments I recommend you to disable KeepAlive.

Hint: It might be tricky to create a dedicated vhost for your
SOAP-Gateways and disable keepalive just for this vhost because for
normal webpages Keepalive is a nice speed-boost.

I haven’t been able to figure out exactly how you disable KeepAlive or where this parameter would be set. I’ve tried grep -i "keepalive" /usr/share/tomcat5/conf/*, result negative.

Perhaps due to the variability of server environments this is a question for my sysadmin, but I do have root privileges.

Thanks for your help, stack!

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1 Answer

  1. Editorial Team

    In your Tomcat’s server.xml file, set the maxKeepAliveRequests attribute to 1 on your HTTP connectors to effectively disable keep alive.

    For more information:

    http://tomcat.apache.org/tomcat-5.5-doc/config/http.html#Standard_Implementation

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