----------------------------------------------------------------
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!!!
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I've had this 'ajp12: ping: no reply (-1)' problem also, it's much more
sporatic now, and have a few lingering questions/problems: (history is below)
1. I wrote a little perl program, to display 'netstat | grep 8007 | wc -l'
every 30 seconds. Dividing by two, since each connection needs two
sockets, I find that the connections range from 9 in the middle of the
night to over 60 at peak times. Question: Why don't the number of
connections drop to 0 in the middle of the night?
2. Since making the below changes, after two days of running, I've seen
this error once, at 4AM -- other than that no problems. What could still be
causing this error? And why at 4AM when there's little activity? In fact,
the error and access log files show no activity (last activity: 4:00:46;
next activity: 4:40:57). It's like the server just needed to restart itself?!
[09/03/2000 04:05:05:480] (EMERGENCY) ajp12: ping: no reply
(-1) Please make sure that
the wrapper.classpath is pointing to the correct version of ApacheJServ.jar
Any ideas?
Dan
Setup
------
Red Hat 6.1
Blackdown JVM 1.1.8v1
Apache 1.3.12
JServ 1.1
History
--------
1. Changed wrapper.env=THREADS_FLAG=native" in jserv.properties to use
native threads.
2. Changed maxConnections to 100 from 50. My program, which displays
'netstat | grep 8007 | wc -l' showed that the connections would go above 50.
These changes *drastically* improved the situation. I was getting many
errors in mod_jserv.log like this:
[07/03/2000 09:06:14:675] (EMERGENCY) ajp12[1]: cannot scan servlet
headers (500)
[07/03/2000 09:06:14:675] (ERROR) an error returned handling request via
protocol "ajpv12"
[07/03/2000 09:06:14:676] (EMERGENCY) ajp12[1]: cannot scan servlet
headers (500)
[07/03/2000 09:06:14:676] (ERROR) an error returned handling request via
protocol "ajpv12"
[07/03/2000 09:06:17:730] (EMERGENCY) ajp12[1]: cannot scan servlet
headers (500)
[07/03/2000 09:06:17:731] (ERROR) an error returned handling request via
protocol "ajpv12"
[07/03/2000 09:06:38:030] (EMERGENCY) ajp12: ping: no reply
(-1) Please make sure that
the wrapper.classpath is pointing to the correct version of
ApacheJServ.jar
[07/03/2000 09:06:47:127] (EMERGENCY) ajp12[1]: cannot scan servlet
headers (500)
[07/03/2000 09:06:47:127] (ERROR) an error returned handling request via
protocol "ajpv12"
[07/03/2000 09:06:47:128] (EMERGENCY) ajp12[1]: cannot scan servlet
headers (500)
[07/03/2000 09:06:47:128] (ERROR) an error returned handling request via
protocol "ajpv12"
[07/03/2000 09:06:47:128] (EMERGENCY) ajp12[1]: cannot scan servlet
headers (500)
[07/03/2000 09:06:47:128] (ERROR) an error returned handling request via
protocol "ajpv12"
[07/03/2000 09:06:47:129] (EMERGENCY) ajp12[1]: cannot scan servlet
headers (500)
[07/03/2000 09:06:47:129] (ERROR) an error returned handling request via
protocol "ajpv12"
[07/03/2000 09:06:47:129] (EMERGENCY) ajp12[1]: cannot scan servlet
headers (500)
At 01:56 PM 2/28/00 -0500, you wrote:
>----------------------------------------------------------------
>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!!!
>----------------------------------------------------------------
>
>
>RH5.1
>Apache 1.3.9
>Jserv 1.1
>Blackdown JDK 1.1.6
>
>I have an servlet which, along with a number of other things which
>involve returning HTML to the user, at one point sends one of a number
>of possible PDF documents back to the user. Some of these PDFs are
>quite large (2 - 20 MB). The servlet is getting them and sending them
>back to the user. The smaller ones tend to be OK, but the larger ones,
>more often than not (and not always) die a horrible death. The PDF
>stream ends prematurely and this is all i get to show for it:
>
>[28/02/2000 13:15:22:311] (EMERGENCY) ajp12: ping: no reply
>(-1) Please make sure that the wrapper.classpath is
>pointing to the correct version of ApacheJServ.jar
>
>This shows up the moment the PDF stream breaks. At the browser end,
>Acrobat then starts up and complains about a broken PDF file. Nothing
>else in the other logs...
>
>I've checked the faq. All my paths are right and I am pointing to the
>right ApacheJServ.jar file. My log files chmod 777.
>
>any help would be appreciated...
>
>thanks
>
> glen
>
>
>
>--
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Dan Finkelstein
Senior Architect, Instructional Tools & Technology
95 Linden Street, #10
Oakland, CA 94607
Ph: 510.663.1295
Fax: 510.251.1068
[EMAIL PROTECTED]
"Changing the face of the on-line medium" (again!)
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