Overview

You have applied a change in your MMSC servers, so you just want to check if the status of all servers in the nodes is correct for troubleshooting purposes. The following article contains the basic checks you must go through to narrow down issues related to the service's health.

 

Information

The basic Mercury health check includes the execution of the following steps:

1. Checking the cluster status
2. Checking Mercury processes
3. Check Mercury mounted filesystem
4. Check free disk space
5. Checking Virtual IP addresses
6. Checking the listening TCP port
7. Checking open connections
8. Checking memory used by mercury SMSM service

 

Checking the cluster status

Run the following command to get the cluster status: 

pcs status

 

Checking Mercury processes

Run the following system command: 

ps -ef

Java process: ps -ef | grep tomcat

Postgresql process: ps -ef | grep postgresql

 

Checking Mercury mounted filesystem

Run the following system command: 

df -kh

 

Check free disk space

Run the following system command:

df -h

 

Checking Virtual IP addresses

Run the following system command: 

IP address

 

Checking the listening TCP port

Run the following system command:

netstat -luntp

You can grep (filter) the results by using the following structure:

WAPGW (p2p): 

netstat  -luntp | grep 8080

RADIUS: 

netstat  -luntp | grep 1813

SMSM: 

netstat  -luntp | grep 2950

MMSC (p2p): 

netstat  -luntp | grep 8081

MMSC (a2p): 

netstat  -luntp | grep 8080

 

Checking open connections

Run the following commands to confirm the open and established connections (by port):

WAPGW (p2p): 

netstat -an | grep ":80" | grep -E "ESTABLISHED|SYN_RECV" | wc -l

MMSC (p2p): 

netstat -an | grep ":8081" | grep -E "ESTABLISHED|SYN_RECV" | wc -l

MMSC (a2p): 

netstat -an | grep ":8080" | grep -E "ESTABLISHED|SYN_RECV" | wc -l

 

Checking the number of unsent messages in queues

Run system command (as mercury user):

psql mdg -c 'select queue_id, count(1) cnt from ddgtr where tr_flags < 32 group by queue_id;'

 

Checking memory used by mercury SMSM service

Run the following system command:

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