I have a data collection servlet running on tomcat 5.5.12 and Windows 2003. It is used by about 200 clients.
Every now and then I see the error below indicating that the server times out reading the HTTP request for the client. After some extensive investigation, what I know is: - the timeouts happen precisely after 10 or 20 sec - there is no garbage collection or CPU activity to account for the timeout - after digging through the Tomcat code, the default socket timeout is 0, so the timeout should never occur. - the server is a dual CPU high-end server, so load should not be a problem. I would guess the exception is misleading and the error is somewhere else? Any ideas? Thanks, Bogdan Calmac. java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(Unknown Source) at org.apache.coyote.http11.InternalInputBuffer.fill(InternalInputBuffer.java:747) at org.apache.coyote.http11.InternalInputBuffer$InputStreamInputBuffer.doRead(InternalInputBuffer.java:777) at org.apache.coyote.http11.filters.IdentityInputFilter.doRead(IdentityInputFilter.java:115) at org.apache.coyote.http11.InternalInputBuffer.doRead(InternalInputBuffer.java:712) at org.apache.coyote.Request.doRead(Request.java:427) at org.apache.catalina.connector.InputBuffer.realReadBytes(InputBuffer.java:283) at org.apache.tomcat.util.buf.ByteChunk.substract(ByteChunk.java:379) at org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:298) at org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:192) at sun.nio.cs.StreamDecoder$CharsetSD.readBytes(Unknown Source) at sun.nio.cs.StreamDecoder$CharsetSD.implRead(Unknown Source) at sun.nio.cs.StreamDecoder.read(Unknown Source) at java.io.InputStreamReader.read(Unknown Source) at java.io.BufferedReader.fill(Unknown Source) at java.io.BufferedReader.readLine(Unknown Source) at java.io.BufferedReader.readLine(Unknown Source) at com.knoa.server.thor.ThorInMessage.execute(ThorInMessage.java:158) at com.knoa.server.thor.ThorServlet.doPost(ThorServlet.java:373) at javax.servlet.http.HttpServlet.service(HttpServlet.java:709) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:204) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Unknown Source) --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
