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Greg,
Have you tried the ApJServVMTimeout setting in jserv.conf? It is set to 10 seconds by
default.
Comment in jserv.conf says to increase it on heavily loaded systems... It appears to
control the initial timeout but also the timeout with no ping response before
restarting JServ.
peace,
Tyler
>----------------------------------------------------------------
>BEFORE YOU POST, search the faq at <http://java.apache.org/faq/>
>WHEN YOU POST, include all relevant version numbers, log files,
>and configuration files. Don't make us guess your problem!!!
>----------------------------------------------------------------
>
>There is a problem in the assumptions made in JServ 1.1 (actually it is the
>apjv12 protocol). It assumes that the c process (mod_jserv) should expect
>an immediate reply from the java process (JServ). If this reply does not
>immediately return, then it assumes that the java process is hung and resets
>the JVM. This mainly occurs when running on an SMP box, using a JVM with
>green threads and with a servlet that takes a long time to run (i.e. does
>more than just serve up an HTML page). This is because it is easy to have a
>situation where httpd (mod_jserv) is running on one processor while java is
>running on another processor. If the java process is busy with a request,
>it will not return the ping immediately and thus the JVM is reset. If you
>run native threads, then it is more likely that there will be a waiting
>thread to handle the ping request. I have been meaning (though have not had
>the time) to write a patch for the code to allow for a configuration option
>which will let you decide both the number of ping requests unanswered before
>re-setting the JVM and allowing for time period to wait for the ping reply.
>
>- Greg
>
>----- Original Message -----
>From: Doug Hathaway <[EMAIL PROTECTED]>
>To: 'Java Apache Users' <[EMAIL PROTECTED]>
>Sent: Wednesday, January 19, 2000 1:11 PM
>Subject: Servlet Timeout
>
>
>> ----------------------------------------------------------------
>> BEFORE YOU POST, search the faq at <http://java.apache.org/faq/>
>> WHEN YOU POST, include all relevant version numbers, log files,
>> and configuration files. Don't make us guess your problem!!!
>> ----------------------------------------------------------------
>>
>>
>> We just upgraded our Jserv from 1.0 to 1.1b3 and it appears that we are
>> encountering some sort of timeout when a servlet process takes over 10
>> seconds. We are failing on a export of data from a MySql table to flat
>> file, this export worked fine until we upgraded our Jserv. I believe
>> the problem is in the Jserv configuration, however I have not been able
>> to determine the source of the problem. If anyone has a solution are a
>> suggestion I would appreciate at it.
>>
>> Thanks
>>
>>
>> The following are the logs that might help in answering our problem.
>>
>> Jserv = ApacheJServ 1.1b3
>>
>> Java =Blackdown jre117_v3
>>
>> OS = Linux
>>
>> Jserv_log
>> ========
>> [19/01/2000 09:48:53:680] (INFO) wrapper: Java VM spawned (PID=16034,
>> PPID=15993)
>> [19/01/2000 10:16:10:149] (INFO) wrapper: Java VM not responding
>> (PID=15993) [timeout]
>> [19/01/2000 10:16:10:152] (EMERGENCY) ajp12[1]: cannot scan servlet
>> headers (500)
>> [19/01/2000 10:16:10:152] (ERROR) an error returned handling request via
>> protocol "ajpv12"
>> [19/01/2000 10:16:11:159] (EMERGENCY) ajp12: ping: no reply
>> (-1) Please make sure that the wrapper.classpath is
>> pointing to the correct
>> version of ApacheJServ.jar
>> [19/01/2000 10:16:11:159] (INFO) wrapper: Java VM restarting (PID=15993)
>>
>> [
>>
>> Apache Error Log
>> ==============
>> [Wed Jan 19 10:26:24 2000] [error] [client ] Premature end of scrip
>> t headers: /ss3script/com.kurant.sysadmin.servlet.ExportTables
>>
>>
>>
>> --
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>
>
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------------------------------------------------------
Tyler Morrison - [EMAIL PROTECTED]
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