Logging

Messages from GNU GPL sniffer sensor service

Voipmonitor by default uses 'daemon' facility of a syslog to store status messages.

Default location

debian/ubuntu

it is stored to /var/log/syslog

on centos/rh

/var/log/messages

Messages file Change

You can find useful to store status info from voipmonitor to different file: For rsyslog use this in /etc/rsyslog.conf

if $programname == 'voipmonitor' and $syslogseverity <= '7' then /var/log/voipmon.log
& ~

Status line details

SQLq/SQLf

C=CDR_queue 
M=Message_queue
R=Register_queue
L=LiveSniffer_queue
Cl=Cleanspool queue

SQLf reported when query_cache enabled in sensors config

heap[A|B|C]

A

number of % of used heap memory.If 100 voipmonitor is not able to process packets in realtime due to CPU or I/O.

B

number of % used memory in packetbuffer.

C

% used for async write buffers (if 100% I/O is blocking and heap will grow and than ring buffer will get full and then packet loss will occur)

[Mb/s]

total network throughput

t0i_dag0_CPU

[2614.7Mb/s;24.8%/19.6%] Throughput thru this 'dag0' interface 2614.7Mb/s Usage of reading thread from this interface 24.8% Usage of thread making blocksof packets for processing with t0 thread 19.6% (this stat is printed per sniffing interface where packets were visible)

t0CPU

This is %CPU utilization for thread 0. Thread 0 is process reading from kernel ring buffer. Once it is over 90% it means that the current setup is hitting limit processing packets from network card. Please write to support@voipmonitor.org if you hit this limit.

t1CPU

This is %CPU utilization for thread 1. Thread 1 is process reading packets from thread 0, adding it to the buffer and compress it (if enabled).

tarQ

number of files in a queue

tarB

MBs in tar buffer

tarCPU

threads used for taring - its consumption

t2CPU

pb:10.5/	- packetbuffer - out of the buffer
d:39.2/		- structs create for processing in t2
s:24.6/		- SIP - parse
e:17.3/		- SIP - calls/messages search, struct creation
c:6.8/		              - process_packets - calls/messages
g:6.4/                       - process_packets - registers
r:7.3/		              - process_packets - RTP
rm:24.6/	- RTP - packets shift, prepare for processing
rh:16.7/	- RTP - search hash
rd:19.3/	- RTP - move to read queue

Adding new thread is automatic

'd' is running after pb,
if 'd' > 50%, new thread 's' (reasembles, sip parse) 
if 's' > 50%, new thread 'e' (callid search + structs create for calls), 
if 'e' > 50%, new thread 'c' (calls)
if 'c' > 50%, new thread 'g' (registers)
if 'g' > 50%, new thread 'r' (rtp)

Threads removing

if thread 'r|g|c|e|s' consuming < N% remove it.

tRTP_CPU

[658.8%/46.7m/15t] Means that 15threads processing RTP, peak thread 46.7%, Sum 658.8%

tacCPU

[N0|N1|N...] %CPU utilization when compressing pcap files or when compressing internal memory if tar=yes (which is by default) number of threads grows automatically

RSS/VSZ

RSS

resident size, which is an accurate representation of how much actual physical memory sniffer is consuming. in MB

VSZ

virtual size of a process, which is the sum of memory it is actually using, memory it has mapped into itself (for instance the video card’s RAM for the X server), files on disk that have been mapped into it (most notably shared libraries), and memory shared with other processes. VIRT represents how much memory the program is able to access at the present moment.

LA

[11.90 10.93 10.71] Load averages in last 1,5,10 minutes