#1757 5.4 on OSX: unable to monitor processes
Using the bundled SNMP agent that comes with OS X 10.4 I was able to get a list of running processes, their memory usage / CPU usage etc.
Because of the bug with multiple calls to the free space MIB's causing snmpd to crash - I have had to upgrade to the current release.
With a working install of the current release - I no longer the the process details and if I try and manually add them with a proc directive in the .conf file - i get the error :
Starting SNMP service
/usr/share/snmp/snmpd.conf: line 47: Error: Already have an entry for this process.
/usr/share/snmp/snmpd.conf: line 48: Error: Already have an entry for this process.
/usr/share/snmp/snmpd.conf: line 49: Error: Already have an entry for this process.
Install Details:
NET-SNMP version 5.4
Darwin Kernel Version 8.8.0: Fri Sep 8 17:18:57 PDT 2006; root:xnu-792.12.6.obj~1/RELEASE_PPC Power Macintosh powerpc
Patches Applied: 1600522, 1600453
Configure Options: --with-persistent-directory=/var/db/net-snmp --with-defaults
--without-rpm --with-mib-modules="host ucd-snmp/diskio"
--with-out-mib-modules="mibII/icmp host/hr_swrun host/hr_network"
--disable-static --without-kmem-usage --prefix=/usr --sysconfdir=/etc
CPPFLAGS=-I/System/Library/Frameworks/System.framework/PrivateHeaders
LIBS="-framework IOKit -framework CoreFoundation"
snmpd.conf:
rwcommunity testtest1
proc httpd
proc snmpd
proc dhcpd
syslocation "Test Test 1"
syscontact "Test 1 Administrator noc@SITE.DETAIL"
sysservices 76
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Please run the agent with "-Dread_config" to double-check whether the agent is reading any of the "proc" directives twice.
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It is being read-in twice. Starting the daemon with
/usr/sbin/snmpd -c /usr/share/snmp/snmpd.conf -Lf /var/log/snmpd.log
How do I stop it reading /usr/share/snmp/snmpd.conf twice?
(If I don't pass it the config location it loads nothing at all)
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Add "-C" or set SNMPCONFPATH=/usr/share/snmp/snmpd.conf:/var/db/net-snmp (env var).
Does it work, then?
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By changing it to:
/usr/sbin/snmpd -C -c /usr/share/snmp/snmpd.conf -Lf /var/log/snmpd.log
I get the below in the log. It would appear that it isn't reading anything any more.
/usr/share/snmp/snmpd.conf: Operation not supported on socket
/usr/share/snmp/snmpd.conf: Operation not supported on socket
Warning: no access control information configured.
It's unlikely this agent can serve any useful purpose in this state.
Run "snmpconf -g basic_setup" to help you configure the snmpd.conf file for this agent.
NET-SNMP version 5.4
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Weird. Please run with "-DALL" and/or under strace (or whatever strace/truss equivalent OSX ships with) to see what the agent is doing here. Please double-check that /usr/share/snmp/snmpd.conf is a regular file as expected.
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Apologies. /usr/share/snmp/snmpd.conf had become a socket.
I am not entirely sure how that happened by compiling, installing and then running snmpconf -i
It has now been fixed.
snmpd starts with no errors, but does not monitor the processes. snmpwalk returns to values for anything supplied with proc. I could be doing something wrong though - I am just snmpwalking the entire tree and grepping for httpd.
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Please "snmpwalk ... localhost UCD-SNMP-MIB::prTable" and post/verify the output.
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They are there. Apologies for that.
Is there any way to get back the functionality of the apple supplied agent?
I had mib's with every process, memory use, cpu use etc.
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Should all be there. Just "snmpwalk -mall ... localhost .1" and check the output. If you spot any major difference, please tell us and attach the *full* snmpwalk against both the Apple supplied and the 5.4 agent here.
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I would love to post a diff, to do that though I will need to rebuild the apple boxes. In my haste I just erased the existing snmpd binary instead of keeping it.
With that being the case I guess we will have to close this ticket until I can build another box.
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Open a new one, then, because "proc" seems to be working in general on OSX, AFAICS.