TIBCO LogLogic LMI - explanation of message drops as shown in 'watchqueue' p.2
Article ID: KB0072063
Updated On:
| Products | Versions |
|---|---|
| TIBCO LogLogic Enterprise Virtual Appliance | 6.2.1 and higher |
Description
TIBCO LogLogic administrators could wonder where the system collects and aggregate the metrics for message dropped and which level are the drops happening. We can find this metrics in the CLI's 'watchqueue' page 2.
Environment
RHEL
Resolution
The 'watchqueue' page 2 shows a line (in the middle) like:
Packet Drops: MAC Drops : 0(0.00/s) IP Drops : 0(0.00/s) UDP Drops : 4529866(0.00/s)
The MAC drops - occurs on the Network Interface Card and can be shown by bellow command:
Logapp root:~ 0$ /usr/sbin/ethtool -S eth0 2>/dev/null | grep rx_dropped | awk '{print $2}'
Logapp root:~ 0$
The IP drops occurs on the OS level and can be displayed with following command:
Logapp root:~ 0$ netstat -s -w | grep 'incoming packets discarded'
0 incoming packets discarded
Finally, the UDP drops occurs on application level and can be showed with below command:
Logapp root:~ 0$ cat /proc/net/snmp | grep Udp | grep -v InErrors | awk '{print $4}' | head -1
4529866
Packet Drops: MAC Drops : 0(0.00/s) IP Drops : 0(0.00/s) UDP Drops : 4529866(0.00/s)
The MAC drops - occurs on the Network Interface Card and can be shown by bellow command:
Logapp root:~ 0$ /usr/sbin/ethtool -S eth0 2>/dev/null | grep rx_dropped | awk '{print $2}'
Logapp root:~ 0$
The IP drops occurs on the OS level and can be displayed with following command:
Logapp root:~ 0$ netstat -s -w | grep 'incoming packets discarded'
0 incoming packets discarded
Finally, the UDP drops occurs on application level and can be showed with below command:
Logapp root:~ 0$ cat /proc/net/snmp | grep Udp | grep -v InErrors | awk '{print $4}' | head -1
4529866
Issue/Introduction
This article explains the message drops in 'watchqueue' page 2
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