Tomcat hangs ever few hours.
In server.xml maxThreads are 300.
In thread dump I observed every thread doing the same thing.
In my code I sends sms to users by using HttpURLConnection.
I am using this code for months I didn't get the problem earlier.
For few days I am getting this problem consistently. Whenever tomcat hangs I
takes the thread dump,
every time it shows the same results.
Here is my one of threads dump. this is common for all remaining threads.
Somebody guide me to solve this problem. I am trying but unable to do this
"http-80-300" daemon prio=1 tid=0x76890ef0 nid=0x6bb6 runnable
[0x6def0000..0x6def0db0]
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:256)
at java.io.BufferedInputStream.read(BufferedInputStream.java:313)
- locked <0xb1332658> (a java.io.BufferedInputStream)
at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:681)
at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:626)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:983)
- locked <0xb1332690> (a sun.net.www.protocol.http.HttpURLConnection)
at SendSms.sendToSingleRecipientNoNpri(SendSms.java:89)
at CreateAccountAction.execute(CreateAccountAction.java:86)
at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
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 com.amulyam.servlet.RedirectFilter.doFilter(RedirectFilter.java:56)
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)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
at java.lang.Thread.run(Thread.java:595)
