ERROR: java.net.SocketException: Connection reset

[reposito...@gmail.com]

Hi, we are using DSpace 4.3 on Linux and Oracle database. We have detected in the log file localhost of apache tomcat, the following error.

ERROR: El Servlet.service() para el servlet [bitstream] en el contexto con ruta [] lanzó la excepción [org.apache.catalina.connector.ClientAbortException: java.net.SocketException: Connection reset] con causa raíz

java.net.SocketException: Connection reset

        at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:118)

        at java.net.SocketOutputStream.write(SocketOutputStream.java:159)

        at org.apache.coyote.ajp.AjpProcessor.output(AjpProcessor.java:298)

        at org.apache.coyote.ajp.AbstractAjpProcessor$SocketOutputBuffer.doWrite(AbstractAjpProcessor.java:1246)

        at org.apache.coyote.Response.doWrite(Response.java:499)

        at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:402)

        at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:480)

        at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:366)

        at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:432)

        at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:420)

        at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:91)

        at net.bull.javamelody.FilterServletOutputStream.write(FilterServletOutputStream.java:83)

        at net.bull.javamelody.CounterResponseStream.write(CounterResponseStream.java:82)

        at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)

        at java.io.BufferedOutputStream.write(BufferedOutputStream.java:126)

        at org.dspace.core.Utils.copy(Utils.java:238)

        at org.dspace.core.Utils.bufferedCopy(Utils.java:264)

        at org.dspace.app.webui.servlet.BitstreamServlet.doDSGet(BitstreamServlet.java:221)

        at org.dspace.app.webui.servlet.DSpaceServlet.processRequest(DSpaceServlet.java:119)

        at org.dspace.app.webui.servlet.DSpaceServlet.doGet(DSpaceServlet.java:67)

        at javax.servlet.http.HttpServlet.service(HttpServlet.java:624)

        at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)

        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)

        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

        at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:200)

        at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:178)

        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

        at org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78)

        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)

        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)

        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)

        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)

        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)

        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)

        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)

        at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:190)

        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620)

        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

        at java.lang.Thread.run(Thread.java:745)

any ideas?

thanks