RE: Errors in Log file
a cursory glance on Google with tomcat java.net.SocketException: Connection reset by peer This exception occurs when a client made a request, and before receiving the full response, either of the following happened: client's browser has been closed. client's connection has been disconnected. client presses the stop button. This exception is normally harmless. It does not seem possible to trap this exception with J2SE. However you say you get error 500, so perhaps are you connecting to a resource using sockets yourself from your web app?? // --- from http://java.sun.com/features/2002/08/j2se-network.html Connection Reset by Peer : One of the issues that developers frequently run into is the Connection reset by peer exception: Exception in thread main java.net.SocketException: Connection reset by peer: JVM_recv in socket input stream read. This basically means that a network error occurred while the client was receiving data from the server. But what is really happening is that the server actually accepts the connection, processes the request, and sends a reply to the client. However, when the server closes the socket, the client believes that the connection has been terminated abnormally because the socket implementation sends a TCP reset segment telling the client to throw away the data and report an error. Sometimes, this problem is caused by not properly closing the input/output streams and the socket connection. Make sure you close the input/output streams and socket connection properly. If everything is closed properly, however, and the problem persists, you can work around it by adding Thread.sleep(1000) before closing the streams and the socket. This technique, however, is not reliable and may not work on all systems. -Original Message- From: Pradeep Chauhan [mailto:[EMAIL PROTECTED] Sent: 02 December 2004 10:15 To: Tomcat Users List Subject: Errors in Log file Hi All, We have Tomcat 4.1.12 in production. Sometime users get INTER SERVER ERROR 500. In log files we have only two errors without any clues. Can any body explian the possible reasons of these errors. 1. java.net.SocketException: Connection reset by peer: socket write error at java.net.SocketOutputStream.socketWrite0(Native Method) at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92) at java.net.SocketOutputStream.write(SocketOutputStream.java:136) 2. java.lang.IllegalStateException at org.apache.coyote.tomcat4.CoyoteResponseFacade.sendRedirect(Co yoteResponseFa cade.java:340) at org.apache.jsp.DreamScreen_jsp._jspService(DreamScreen_jsp.java:564) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:136) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.jasper.servlet.JspServletWrapper.service(JspServlet Wrapper.java:2 04) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet .java:289) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilt er(Application FilterChain.java:247) at org.apache.catalina.core.ApplicationFilterChain.doFilter(Appli cationFilterCh ain.java:193) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardW rapperValve.ja va:260).. Thanks and Regards, Pradeep Chauhan - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] FONT SIZE=1 FACE=VERDANA,ARIAL COLOR=BLUE --- QAS Ltd. Developers of QuickAddress Software a href=http://www.qas.com;www.qas.com/a Registered in England: No 2582055 Registered in Australia: No 082 851 474 --- /FONT - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: [SPAM_EMAIL] - RE: Errors in Log file - Found word(s) list error in the Text body.
Hi , No, we are not connecting to a resource using sockets. Is it possible that server is closing sockets after some interval of time by default. and because we are not getting response in that interval of time thats why it is generating such errors? Thanks, Pradeep -Original Message- From: Allistair Crossley [mailto:[EMAIL PROTECTED] Sent: 02.12.2004 03:52 PM To: Tomcat Users List Subject: [SPAM_EMAIL] - RE: Errors in Log file - Found word(s) list error in the Text body. a cursory glance on Google with tomcat java.net.SocketException: Connection reset by peer This exception occurs when a client made a request, and before receiving the full response, either of the following happened: client's browser has been closed. client's connection has been disconnected. client presses the stop button. This exception is normally harmless. It does not seem possible to trap this exception with J2SE. However you say you get error 500, so perhaps are you connecting to a resource using sockets yourself from your web app?? // --- from http://java.sun.com/features/2002/08/j2se-network.html Connection Reset by Peer : One of the issues that developers frequently run into is the Connection reset by peer exception: Exception in thread main java.net.SocketException: Connection reset by peer: JVM_recv in socket input stream read. This basically means that a network error occurred while the client was receiving data from the server. But what is really happening is that the server actually accepts the connection, processes the request, and sends a reply to the client. However, when the server closes the socket, the client believes that the connection has been terminated abnormally because the socket implementation sends a TCP reset segment telling the client to throw away the data and report an error. Sometimes, this problem is caused by not properly closing the input/output streams and the socket connection. Make sure you close the input/output streams and socket connection properly. If everything is closed properly, however, and the problem persists, you can work around it by adding Thread.sleep(1000) before closing the streams and the socket. This technique, however, is not reliable and may not work on all systems. -Original Message- From: Pradeep Chauhan [mailto:[EMAIL PROTECTED] Sent: 02 December 2004 10:15 To: Tomcat Users List Subject: Errors in Log file Hi All, We have Tomcat 4.1.12 in production. Sometime users get INTER SERVER ERROR 500. In log files we have only two errors without any clues. Can any body explian the possible reasons of these errors. 1. java.net.SocketException: Connection reset by peer: socket write error at java.net.SocketOutputStream.socketWrite0(Native Method) at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92) at java.net.SocketOutputStream.write(SocketOutputStream.java:136) 2. java.lang.IllegalStateException at org.apache.coyote.tomcat4.CoyoteResponseFacade.sendRedirect(Co yoteResponseFa cade.java:340) at org.apache.jsp.DreamScreen_jsp._jspService(DreamScreen_jsp.java:564) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:136) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.jasper.servlet.JspServletWrapper.service(JspServlet Wrapper.java:2 04) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet .java:289) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilt er(Application FilterChain.java:247) at org.apache.catalina.core.ApplicationFilterChain.doFilter(Appli cationFilterCh ain.java:193) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardW rapperValve.ja va:260).. Thanks and Regards, Pradeep Chauhan - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] FONT SIZE=1 FACE=VERDANA,ARIAL COLOR=BLUE --- QAS Ltd. Developers of QuickAddress Software a href=http://www.qas.com;www.qas.com/a Registered in England: No 2582055 Registered in Australia: No 082 851 474 --- /FONT - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Errors in Log file
I believe the java.lang.IllegalStateException occurs when the response is committed. sendRedirect requires changing the HTTP headers (Location: perhaps). You cannot write HTML to the web page and then issue a redirect unless the HTML is buffered via a JSP directive: %@ page buffer=32kb %, and the response can be cleared before it is flushed (HTTP Headers go before the HTTP body). Either don't attempt to write HTML to the web page, or make sure your buffer size is big enough so that the HTML can be buffered and cleared before you issue the re-direct. The HTML will be ignored when the sendRedirect is used. http://java.sun.com/products/jsp/tags/11/syntaxref11.fm7.html http://www.esus.com/javaindex/j2ee/javajsp/jspbufferautoflush.html David Stevenson On Thu, 2004-12-02 at 05:15, Pradeep Chauhan wrote: 2. java.lang.IllegalStateException at org.apache.coyote.tomcat4.CoyoteResponseFacade.sendRedirect(CoyoteResponseFa cade.java:340) at org.apache.jsp.DreamScreen_jsp._jspService(DreamScreen_jsp.java:564) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:136) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:2 04) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:289) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application FilterChain.java:247) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh ain.java:193) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja va:260).. Thanks and Regards, Pradeep Chauhan - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
