Orbeon running on Full GC mode and exist-rest-servlet throws exception.

Orbeon application down.
Orbeon running on Full GC mode and exist-rest-servlet throws exception. version 3.9.1

Please help what could be the problem which lead to this,

SEVERE: Servlet.service() for servlet exist-rest-servlet threw exception
javax.servlet.ServletException: Error while serializing XML: ClientAbortException:  java.net.SocketException: Connection reset
    at org.exist.http.servlets.EXistServlet.doGet(EXistServlet.java:327)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at fi.elisa.eform.filter.RequestHeaderFilter.doFilter(RequestHeaderFilter.java:58)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)

Hi,

The exception seems to indicate that someone, I imagine Orbeon Forms, connected to eXist, and cut the connection when this was not expected. But this doesn't tell us much.

About the full GC, are you saying that you see lots of full GC happening? I.e. that the VM could be running out of memory? Maybe increasing the heap size could take care of this? And of course, I would recommend you upgrade 4.5.1 ;).

Alex