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    <p>I also I got rid of the 500 error using new size,</p>
    <p>no error message debugging <font size="2"><span
          style="font-size:11pt">svcstatus.sh</span></font></p>
    <p><font size="2"><span style="font-size:11pt"><br>
        </span></font></p>
    <p><font size="2"><span style="font-size:11pt">Best Regards</span></font></p>
    <p><font size="2"><span style="font-size:11pt">Marco<br>
        </span></font></p>
    <p><font size="2"><span style="font-size:11pt"><br>
        </span></font></p>
    <div class="moz-cite-prefix">Il 13/10/2020 12:12, Herald ten Dam ha
      scritto:<br>
    </div>
    <blockquote type="cite"
cite="mid:PR3P193MB10401689CB7FA7718A257B7F98040@PR3P193MB1040.EURP193.PROD.OUTLOOK.COM">
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        I had this issue also and not being a c programmer (and not
        having a lot of time to figure out) I adjusted the file
        "svcstatus-trends.c" on line 291:</div>
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        Original: SBUF_MALLOC(allrrdlinks,16384)</div>
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        New: SBUF_MALLOC(allrrdlinks,163840)<br>
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          So the buffer value times 10. After this I got rid of the 500
          error. So I think the buffer is to little for some
          environments.</div>
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            <b>Onderwerp:</b> Xymon Digest, Vol 117, Issue 7</font>
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                Today's Topics:<br>
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                   1. Re: Too much data for svcstatus.sh? (Henrik
                St?rner)<br>
                <br>
                <br>
----------------------------------------------------------------------<br>
                <br>
                Message: 1<br>
                Date: Mon, 12 Oct 2020 16:01:09 +0200<br>
                From: Henrik St?rner <a class="moz-txt-link-rfc2396E" href="mailto:henrik@hswn.dk"><henrik@hswn.dk></a><br>
                To: <a class="moz-txt-link-abbreviated" href="mailto:xymon@xymon.com">xymon@xymon.com</a><br>
                Subject: Re: [Xymon] Too much data for svcstatus.sh?<br>
                Message-ID:
                <a class="moz-txt-link-rfc2396E" href="mailto:46a50f10-4fe1-4990-fa37-4062e8da7921@hswn.dk"><46a50f10-4fe1-4990-fa37-4062e8da7921@hswn.dk></a><br>
                Content-Type: text/plain; charset=utf-8<br>
                <br>
                Hi,<br>
                <br>
                the best way to debug this is to get a proper stack
                trace of when the<br>
                program crashes. For this, you first need to make sure
                you have a binary<br>
                of svcstatus.cgi which includes debug information - if
                you look at the<br>
                Xymon sources, the build/Makefile.Linux file has a
                commented-out line<br>
                setting the CFLAGS variable for debugging:<br>
                <br>
                # Compile flags for debugging<br>
                # CFLAGS = -g -DDEBUG -Wall -D_REENTRANT $(LFSDEF)
                $(OSDEF)<br>
                <br>
                Uncomment the last line, run "make clean; make" and then
                use the<br>
                web/svcstatus.cgi binary from that.<br>
                <br>
                To run the program in the gdb debugger, I would bypass
                the web server<br>
                CGI and run it by hand like this:<br>
                <br>
                $ export SCRIPT_NAME="svcstatus.sh"<br>
                $ export REQUEST_METHOD="GET"<br>
                $ export
                QUERY_STRING="HOST=claudio.hswn.dk&SERVICE=disk"<br>
                $ gdb ./web/svcstatus.cgi<br>
                (gdb) run<br>
                <br>
                The value for the QUERY_STRING should be taken from the
                URL for your<br>
                status-page - the part after the '?' sign. The example
                here is from the<br>
                xymon.com site, but you really just need to modify the
                hostname to that<br>
                of your own.<br>
                <br>
                Note that you must run it on the Xymon server, because
                it reads the file<br>
                stored there.<br>
                <br>
                <br>
                Regards,<br>
                Henrik<br>
                <br>
                Den 21.05.2020 kl. 17.47 skrev Mike Burger:<br>
                > Good morning.<br>
                ><br>
                > Running Xymon 4.3.30, compiled from source tarball,
                on a RHEL 6.10<br>
                > server.<br>
                ><br>
                > This morning, I encountered an interesting issue.<br>
                ><br>
                > I have a monitored system that has 197 discrete
                filesystems/mounts.<br>
                ><br>
                > When I attempt to enter this server's "Trends"
                section, I receive an<br>
                > internal server error (500).<br>
                ><br>
                > My httpd error log shows this when I attempt to
                access the trends link<br>
                > for the server in question:<br>
                ><br>
                > [Thu May 21 11:29:41 2020] [error] [client
                10.40.24.55] Premature end<br>
                > of script headers: svcstatus.sh, referer:<br>
                > <a
                  href="http://sysmon.fhmc.local/xymon/edmprod/edmprod.html"
                  moz-do-not-send="true">http://sysmon.fhmc.local/xymon/edmprod/edmprod.html</a><br>
                > [Thu May 21 11:29:59 2020] [error] [client
                10.40.24.55] *** glibc<br>
                > detected *** /apps/xymon/server/bin/svcstatus.cgi:
                realloc(): invalid<br>
                > next size: 0x0000000000de7dd0 ***, referer:<br>
                > <a
                  href="http://sysmon.fhmc.local/xymon/edmprod/edmprod.html"
                  moz-do-not-send="true">http://sysmon.fhmc.local/xymon/edmprod/edmprod.html</a><br>
                > [Thu May 21 11:29:59 2020] [error] [client
                10.40.24.55]<br>
                > /apps/xymon/server/bin/svcstatus.cgi[0x408a4f],
                referer:<br>
                > <a
                  href="http://sysmon.fhmc.local/xymon/edmprod/edmprod.html"
                  moz-do-not-send="true">http://sysmon.fhmc.local/xymon/edmprod/edmprod.html</a><br>
                > [Thu May 21 11:29:59 2020] [error] [client
                10.40.24.55]<br>
                > /apps/xymon/server/bin/svcstatus.cgi[0x403453],
                referer:<br>
                > <a
                  href="http://sysmon.fhmc.local/xymon/edmprod/edmprod.html"
                  moz-do-not-send="true">http://sysmon.fhmc.local/xymon/edmprod/edmprod.html</a><br>
                > [Thu May 21 11:29:59 2020] [error] [client
                10.40.24.55]<br>
                > /apps/xymon/server/bin/svcstatus.cgi[0x404bb7],
                referer:<br>
                > <a
                  href="http://sysmon.fhmc.local/xymon/edmprod/edmprod.html"
                  moz-do-not-send="true">http://sysmon.fhmc.local/xymon/edmprod/edmprod.html</a><br>
                > [Thu May 21 11:29:59 2020] [error] [client
                10.40.24.55]<br>
                > /apps/xymon/server/bin/svcstatus.cgi[0x4022c9],
                referer:<br>
                > <a
                  href="http://sysmon.fhmc.local/xymon/edmprod/edmprod.html"
                  moz-do-not-send="true">http://sysmon.fhmc.local/xymon/edmprod/edmprod.html</a><br>
                > [Thu May 21 11:29:59 2020] [error] [client
                10.40.24.55]<br>
                > 00400000-0043c000 r-xp 00000000 fd:08<br>
                > 24906?????????????????????????????<br>
                > /apps/xymon/server/bin/svcstatus.cgi, referer:<br>
                > <a
                  href="http://sysmon.fhmc.local/xymon/edmprod/edmprod.html"
                  moz-do-not-send="true">http://sysmon.fhmc.local/xymon/edmprod/edmprod.html</a><br>
                > [Thu May 21 11:29:59 2020] [error] [client
                10.40.24.55]<br>
                > 0063c000-0063e000 rw-p 0003c000 fd:08<br>
                > 24906?????????????????????????????<br>
                > /apps/xymon/server/bin/svcstatus.cgi, referer:<br>
                > <a
                  href="http://sysmon.fhmc.local/xymon/edmprod/edmprod.html"
                  moz-do-not-send="true">http://sysmon.fhmc.local/xymon/edmprod/edmprod.html</a><br>
                ><br>
                > This does not happen for any other monitored system
                in my environment.<br>
                ><br>
                > This system is one of the more critical servers in
                my environment, so<br>
                > I'd like to figure out what's going on and
                remediate it if possible.<br>
                ><br>
                <br>
                <br>
                <br>
                ------------------------------<br>
                <br>
                Subject: Digest Footer<br>
                <br>
                _______________________________________________<br>
                Xymon mailing list<br>
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                <br>
                <br>
                ------------------------------<br>
                <br>
                End of Xymon Digest, Vol 117, Issue 7<br>
                *************************************<br>
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
Xymon mailing list
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