Page History

...

• Resource monitoring: Monitors memory / cpu usage and if it goes beyond threshold, it reboots the device.
• Process monitoring: It will periodically monitors status of the critical processes.
  • Ccsp processes: If any of these processes crashed, it will be restarted via Self Heal.
  • "CcspCrSsp": If this process is crashed, device will be rebooted.
  • "syseventd": If syseventd is crashed, device will be rebooted.
• Connectivity test: If DNS or WAN_IP is down, device will stop the LAN functionality.

Resource Monitor -

...

Monitors CPU and MEMORY.

                1.  By default, AVG CPU threshold value will be set as 100. This value will be stored in syscfg database. If we want the change the default AVG CPU threshold value, Please refer the attached screenshot and do the following steps,

...

 RDKB_SELFHEAL : Resetting process CcspLMLite

Connectivity Test - Ping Functionality

                     Once the WAN_IP/DNS gets down, Device will stop the PING functionality.

Observed the below logs in /rdklogs/logs/SelfHeal.txt.0 - successful scenario

190924-08:56:43.577621 [RDKB_SELFHEAL] : GW IP Connectivity Test Successfull
190924-08:56:43.583217 [RDKB_SELFHEAL] : IPv4 GW Address is:192.168.30.1
190924-08:56:43.588370 [RDKB_SELFHEAL] : IPv6 GW Address is:
190924-08:56:43.622618 RDKB_SELFHEAL : Ping server lists are empty , not taking any corrective actions
190924-08:56:43.730057 DNS Response: Got success response for this URL www.google.com

Observed the below logs in /rdklogs/logs/SelfHeal.txt.0 - Failure scenario

Troubleshooting

                    1.  Using selfHeal logs to trouble shoot the run-time errors. SelfHeal logs will be created the below path,

                                                 /rdklogs/logs/SelfHeal.txt.0

                    2.  Resource Monitor sample Logs 

                            MEM :

                                  RDKB_SELFHEAL : Total memory in system is 949444 at timestamp 2019:09:24:10:17:08
                                  RDKB_SELFHEAL : Used memory in system is 148772 at timestamp 2019:09:24:10:17:08
                                  RDKB_SELFHEAL : Free memory in system is 800768 at timestamp 2019:09:24:10:17:08
                                  RDKB_SELFHEAL : AvgMemUsed in % is 15
                                 190924-10:17:09.055074 <128>CABLEMODEM[Raspberry]:<99000006><2019:09:24:10:17:09><B8:27:EB:50:C1:CF><ARMv7> RM Memory threshold reached
                                 RDKB_SELFHEAL : Total memory in system is 949444
                                 RDKB_SELFHEAL : Used memory in system is 148752
                                 RDKB_SELFHEAL : Free memory in system is 800792

                         CPU:

                                  190924-10:17:09.055074 <128>CABLEMODEM[Raspberry]:<99000006><2019:09:24:10:17:09><B8:27:EB:50:C1:CF><ARMv7> RM CPU threshold reached