[Xymon] Installing Xymon from terabithia; two weird issues

[Peter Welter]

Hi JC,

I'm still experiencing some difficulties with Xymon version
(4.3.27-1.el6.terabithia) software, that is being deployed from
http://terabithia.org/rpms/xymon/el6/i686/.

There are two different types of problems:

1) Has to do with the integration of Xymon/Devmon.

   Although Devmon gets valid SNMP-data, for each poll, the values in the
if_load.Ethernet3_1.rrd-file (for example) are showing gaps. The next value
is so much larger than the rest, so the total graph is going beserk because
of the spikes that are being shown.

   ...[snip]
            <!-- 2017-03-15 15:10:00 CET / 1489587000 -->
<row><v>5.7197560484e+01</v><v>5.7540255376e+01</v></row>
            <!-- 2017-03-15 15:15:00 CET / 1489587300 -->
<row><v>5.8052253788e+01</v><v>5.7062462121e+01</v></row>
            <!-- 2017-03-15 15:20:00 CET / 1489587600 -->
<row><v>5.8039204545e+01</v><v>5.7738579545e+01</v></row>
            <!-- 2017-03-15 15:25:00 CET / 1489587900 -->
<row><v>5.8352395833e+01</v><v>5.7912187500e+01</v></row>
            <!-- 2017-03-15 15:30:00 CET / 1489588200 -->
<row><v>5.7961458333e+01</v><v>5.8807500000e+01</v></row>
            <!-- 2017-03-15 15:35:00 CET / 1489588500 -->
<row><v>5.7040675403e+01</v><v>5.7108262769e+01</v></row>
            <!-- 2017-03-15 15:40:00 CET / 1489588800 -->
<row><v>5.7984999119e+01</v><v>5.8214662436e+01</v></row>
            <!-- 2017-03-15 15:45:00 CET / 1489589100 -->
<row><v>1.6832224569e+16</v><v>1.6832224569e+16</v></row>
            <!-- 2017-03-15 15:50:00 CET / 1489589400 -->
<row><v>4.4656922344e+16</v><v>4.4656922343e+16</v></row>
            <!-- 2017-03-15 15:55:00 CET / 1489589700 -->
<row><v>5.7648150173e+01</v><v>5.7687031165e+01</v></row>
            <!-- 2017-03-15 16:00:00 CET / 1489590000 -->
<row><v>5.9068884188e+01</v><v>5.9453689406e+01</v></row>
            <!-- 2017-03-15 16:05:00 CET / 1489590300 -->
<row><v>NaN</v><v>NaN</v></row>
            <!-- 2017-03-15 16:10:00 CET / 1489590600 -->
<row><v>NaN</v><v>NaN</v></row>
            <!-- 2017-03-15 16:15:00 CET / 1489590900 -->
<row><v>NaN</v><v>NaN</v></row>
            <!-- 2017-03-15 16:20:00 CET / 1489591200 -->
<row><v>NaN</v><v>NaN</v></row>
            <!-- 2017-03-15 16:25:00 CET / 1489591500 -->
<row><v>NaN</v><v>NaN</v></row>
            <!-- 2017-03-15 16:30:00 CET / 1489591800 -->
<row><v>1.9398478192e+07</v><v>1.8707899982e+07</v></row>
            <!-- 2017-03-15 16:35:00 CET / 1489592100 -->
<row><v>5.6938284153e+01</v><v>5.6770437158e+01</v></row>
            <!-- 2017-03-15 16:40:00 CET / 1489592400 -->
<row><v>NaN</v><v>NaN</v></row>
            <!-- 2017-03-15 16:45:00 CET / 1489592700 -->
<row><v>NaN</v><v>NaN</v></row>
            <!-- 2017-03-15 16:50:00 CET / 1489593000 -->
<row><v>NaN</v><v>NaN</v></row>
            <!-- 2017-03-15 16:55:00 CET / 1489593300 -->
<row><v>NaN</v><v>NaN</v></row>
            <!-- 2017-03-15 17:00:00 CET / 1489593600 -->
<row><v>NaN</v><v>NaN</v></row>
            <!-- 2017-03-15 17:05:00 CET / 1489593900 -->
<row><v>NaN</v><v>NaN</v></row>
            <!-- 2017-03-15 17:10:00 CET / 1489594200 -->
<row><v>NaN</v><v>NaN</v></row>
            <!-- 2017-03-15 17:15:00 CET / 1489594500 -->
<row><v>NaN</v><v>NaN</v></row>
            <!-- 2017-03-15 17:20:00 CET / 1489594800 -->
<row><v>NaN</v><v>NaN</v></row>
            <!-- 2017-03-15 17:25:00 CET / 1489595100 -->
<row><v>3.5775056887e+07</v><v>3.4501518955e+07</v></row>
            <!-- 2017-03-15 17:30:00 CET / 1489595400 -->
<row><v>5.7219344262e+01</v><v>5.7417704918e+01</v></row>
            <!-- 2017-03-15 17:35:00 CET / 1489595700 -->
<row><v>5.7166338798e+01</v><v>5.9383825137e+01</v></row>
            <!-- 2017-03-15 17:40:00 CET / 1489596000 -->
<row><v>5.6769617486e+01</v><v>5.6981202186e+01</v></row>
            <!-- 2017-03-15 17:45:00 CET / 1489596300 -->
<row><v>5.7549617486e+01</v><v>5.7382732240e+01</v></row>
    ...[snip]
    This behaviour does NOT occur on my current Xymon server (version
4.2.3) running on SLES11 SP4.

    First I thought that this has to do with vmware, but that is not the
case. VM or bare metal; the behaviour is the same.

    I made sure to see that even the devmon module is not causing the
problems. The same devmon software works fine on SLES and RHEL. The
snmpwalk-command does get valid SNMP-data, when writing to a files. It just
seems that Xymon does not update the rrd-file correctly!?!?

    Any suggestions how to proceed?

2) Is a memory leak that only occurs when the NetApp-plugin (
https://sourceforge.net/projects/hobbit-perl-cl/) is being used for
trending data. Unfortunately, this not maintained anymore.

   In the past I have been trying to troubleshoot this problem with you
using valgrind etc.

   What do you suggest? Should I upgrade to the newest version first?

Kind regards, Peter
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