RE: Memory leakage in snmptrapd

permalink · #1 (**permalink**) 03-31-2005

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OK - looking around I can see other people are having the same issue =
with the snmptrapd, embedded perl and memory leaks.
Is anyone addressing this issue, or has it been deemed less unimportant =
(at least for the time being)?
=20
I fully understand you may be busy
=20
Regards
=20
Andy
=20
-----Original Message-----
From: net-snmp-users-admin@lists.sourceforge.net =
[mailto:net-snmp-users-admin@lists.sourceforge.net]On Behalf Of Andy =
Ford
Sent: Tuesday, March 29, 2005 2:25 PM
To: Net-Snmp (E-mail)
Subject: Memory leakage in snmptrapd
=20
I am running snmptrapd with the Perl Traphandler and seeing a large =
amount of memory usage.
With no incoming traps, the memory utilisation of the snmptrapd process =
is stable at 11MB.
As traps are processed, memory utilisation rises considerably. After =
just four days, the memory utilisation rose to over 500MB.
I am running snmptrapd with the following options ...
snmptrapd -Le -c /etc/snmp/conf/snmptrapd.conf
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D snmptrapd.conf =
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D
engineBoots 1
oldEngineID 0x800007e5806ee2381a74676940
perl do "/etc/snmp/conf/mytrapd.v2.pl";
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D
=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D outline of mytrapd.v2.pl =
=3D=3D=3D=3D=3D=3D=3D=3D
sub global_hash {
- read in from mySQL DB
}
sub my_receiver {
- walk through VARBINDS
- look in global hash for interface with VARBIND info
- forward trap
}
NetSNMP::TrapReceiver::register("all", \&my_receiver) ||
warn "failed to register our perl trap handler\n";
print STDERR "Loaded the assure:control perl snmptrapd handler\n";
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D
Any ideas how I can start debugging this?
I have seen this bug on 5.2.rc3 and also 5.3.dev
Or is this already a known bug?
I am currently compiling the latest cvs source.
Thanks
Andy
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<div class=3DSection1>

OK=
–
looking around I can see other people are having the same issue with the
snmptrapd, embedded perl and memory =
leaks.<o:p></o:p>

Is=
anyone
addressing this issue, or has it been deemed less unimportant (at least =
for the
time being)?<o:p></o:p>

<!=
[if =
!supportEmptyParas]> <![endif]><o:p></o:p>

I =
fully
understand you may be busy<o:p></o:p>

<!=
[if =
!supportEmptyParas]> <![endif]><o:p></o:p>

Re=
gards<o:p></o:p>

<!=
[if =
!supportEmptyParas]> <![endif]><o:p></o:p>

An=
dy<o:p></o:p>

<!=
[if =
!supportEmptyParas]> <![endif]><o:p></o:p>

-----Original
Message----- 
From:
net-snmp-users-admin@lists.sourceforge.net
[mailto:net-snmp-users-admin@lists.sourceforge.net]On Behalf Of Andy Ford 
Sent: Tuesday, March 29, =
2005 2:25
PM 
To: Net-Snmp (E-mail) 
Subject: Memory leakage =
in
snmptrapd

<![if =
!supportEmptyParas]> <![endif]><o:p></o:p>

I am running =
snmptrapd
with the Perl Traphandler and seeing a large amount of memory =
usage.<o:p></o:p><=
/p>

With no =
incoming traps,
the memory =
utilisation of the =
snmptrapd process
is stable at 11MB.<o:p></o:p>

As traps are =
processed,
memory utilisation rises considerably. After just four days, the memory
utilisation rose to over 500MB.<o:p></o:p><=
/p>

I am running =
snmptrapd
with the following options …<o:p></o:p><=
/p>

snmptrapd -Le -c =
/etc/snmp/conf/snmptrapd.conf<o:p></o:p><=
/p>

=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D 
snmptrapd.conf =
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D</font=
><o:p></o:p><=
/p>

engineBoots 1<o:p></o:p>

oldEngineID 0x800007e5806ee2381a74676940<o:p></o:p><=
/p>

perl do =
"/etc/snmp/conf/mytrapd.v2.pl";<o:p></o:p><=
/p>

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=
<o:p></o:p><=
/p>

<![if =
!supportEmptyParas]> <![endif]><o:p></o:p><=
/p>

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D outline of mytrapd.v2.pl =
=3D=3D=3D=3D=3D=3D=3D=3D<o:p></o:p><=
/p>

sub global_hash {<o:p></o:p>

 &nbs=
p;     
-
read in from mySQL DB<o:p></o:p>

}<o:p></o:p>

sub my_receiver {<o:p></o:p>

 &nbs=
p;     
-
walk through VARBINDS<o:p></o:p>

 &nbs=
p;     
-
look in global hash for interface with VARBIND info<o:p></o:p><=
/p>

 &nbs=
p;     
-
forward trap<o:p></o:p>

}<o:p></o:p>

NetSNMP::TrapReceiver::register("all&quot ;, =
\&my_receiver) ||<o:p></o:p><=
/p>

warn "failed to register our perl trap =
handler\n";<o:p></o:p><=
/p>

print STDERR "Loaded the assure:control perl snmptrapd
handler\n";<o:p></o:p>

=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<o:p></o:p><=
/p>

Any ideas how I =
can
start debugging this?<o:p></o:p>

I have seen =
this bug on 5.2.rc3
and also 5.3.dev<o:p></o:p>

Or is this =
already a
known bug?<o:p></o:p>

I =
am currently=
 compiling
the latest cvs source.<o:p></o:p>

Thanks</f=
ont><o:p></o:p><=
/p>

Andy</fon=
t><o:p></o:p><=
/p>

</div>

</body>


This e-mail is private and may be confidential and is for the =
intended recipient only. If misdirected, please notify us by telephone =
and confirm that it has been deleted from your system and any copies =
destroyed. If you are not the intended recipient you are strictly =
prohibited from using, printing, copying, distributing or disseminating =
this e-mail or any information contained in it. We use reasonable =
endeavours to virus scan all e-mails leaving the Company but no warranty =
is given that this e-mail and any attachments are virus free. You should =
undertake your own virus checking. The right to monitor e-mail =
communications through our network is reserved by us. =

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