Thursday, September 1, 2022

CHKPT diagnostics and cpinfo collections steps

 Here's what CHKP support need in order to diagnose heavy cpu%. The collection of these details and cpview can help in diagnostics of high cpu utilizations



https://sc1.checkpoint.com/documents/R81/WebAdminGuides/EN/CP_R81_PerformanceTuning_AdminGuide/Topics-PTG/CPU-Spike-Detective.htm


and if you are running pre R80.40 you might have to enable it manually;


Deploy files:

FileGW placementComment
spike_detective$FWDIR/binExecution permissions: chmod +x $FWDIR/bin/spike_detective
spike_detective_conf.xml$FWDIR/conf 

 
Activate:
[Expert@Firewall]# cpwd_admin start -name "SPIKE_DETECTIVE" -path "$FWDIR/bin/spike_detective" -command "spike_detective"
 
Check status by running 'cpwd_admin list' and validating status is 1
[Expert@Firewall-dynamite-side-T55-main-take-10:0]# cpwd_admin list | grep SPIKE_DETECTIVE
SPIKE_DETECTIVE 7780   E     1       [09:52:08] 25/11/2020  N    spike_detective
 
Deactivate (if needed):
[Expert@Firewall]# cpwd_admin stop -name "SPIKE_DETECTIVE"
[Expert@Firewall]# cpwd_admin del -name "SPIKE_DETECTIVE"
If we wish the tool's run will 'survive' reboot we can instead run the following commands

  • Activate

[Expert@Firewall]# cpd_sched_config add 'spike_detective' -c "cpwd_admin start -name SPIKE_DETECTIVE -path $FWDIR/bin/spike_detective -command spike_detective" -s -r -e 604800
[Expert@Firewall]# cpd_sched_config activate 'spike_detective'

  • Deactivate

[Expert@Firewall]# cpwd_admin stop -name "SPIKE_DETECTIVE"
[Expert@Firewall]# cpwd_admin del -name "SPIKE_DETECTIVE"
[Expert@Firewall]# cpd_sched_config deactivate 'spike_detective'
[Expert@Firewall]# cpd_sched_config delete 'spike_detective'
How is a spike detected?
A CPU core will be consider as 'spiked' if it holds all of the following conditions:

  • Utilization over 80% (configurable)
  • Utilization is at least 1.5 times higher than the system average (configurable)
  • This ensures that a broadly highly utilized system (for example: during performance testing) will not detect all cores as spiked

A thread/process will be consider as 'spiked' if it holds all of the following conditions:

  • Running on a spiked CPU
  • Utilization over 70% (configurable)
  • Utilization is at least 1.5 times higher than the system average (configurable)

What happens when a spike is detected?
Upon detecting a spike the daemon:
Reports the spike to

  1. /var/log/spike_detective/spike_detective.log
  2. cpview, cpview_services

 
We want to make sure the Variable for the below parameters is set to True

profiler_config"top_conns_enable"Enable collecting top connections data during fw worker spikeBOOLEANtrue (Enabled)
profiler_config"heavy_conns_enable"Enable collecting heavy connections data during fw worker spikeBOOLEANtrue (Enabled)
cleaner_config"cleaner_enabled"Enable/Disable periodic cleanup of old spikes directoriesBOOLEANtrue (Enabled)

 
Its located in the  below conf file
Configurable Variables
The CPU Spike Monitor is configured via the file '$FWDIR/conf/spike_detective_conf.xml'
Configuration example:
<?xml version="1.0" encoding="UTF-8"?>
    <config_file>
        <profiler_config>
            <stat name="perf_enable" type="BOOLEAN" value="false"/>
        </profiler_config>
    </config_file>
 It should be True but we want to make sure so it captures what we are needing
 
How to change the configuration values?

  1. Stop the tool 

[Expert@Firewall]# cpwd_admin stop -name "SPIKE_DETECTIVE"

  1. Change required values in $FWDIR/conf/spike_detective_conf.xml
  2. Restart the tool 

[Expert@Firewall]# cpwd_admin start -name "SPIKE_DETECTIVE" -path "$FWDIR/bin/spike_detective" -command "spike_detective"
 







NSE ( network security expert) and Route/Switching Engineer
kfelix  -----a----t---- socpuppets ---dot---com
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