O header da solicitação é muito grande

Eu encontrei várias exceções IllegalStateException nos logs:

[#|2009-01-28T14:10:16.050+0100|SEVERE|sun-appserver2.1|javax.enterprise.system.container.web|_ThreadID=26;_ThreadName=httpSSLWorkerThread-80-53;_RequestID=871b8812-7bc5-4ed7-85f1-ea48f760b51e;|WEB0777: Unblocking keep-alive exception java.lang.IllegalStateException: PWC4662: Request header is too large at org.apache.coyote.http11.InternalInputBuffer.fill(InternalInputBuffer.java:740) at org.apache.coyote.http11.InternalInputBuffer.parseHeader(InternalInputBuffer.java:657) at org.apache.coyote.http11.InternalInputBuffer.parseHeaders(InternalInputBuffer.java:543) at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.parseRequest(DefaultProcessorTask.java:712) at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:577) at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:831) at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341) at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263) at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214) at com.sun.enterprise.web.portunif.PortUnificationPipeline$PUTask.doTask(PortUnificationPipeline.java:380) at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265) at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106) |#] 

Alguém sabe de alterações de configuração para corrigir isso?