Skip to main content

Script to check the load and email you the details if the load is greater than given threshold.

#!/bin/bash

LoadFloat=$(uptime | gawk -F 'load average:' '{print $2}' | awk '{print $1}' | sed -e 's/,//g')
Load=${LoadFloat/\.*}
LoadLimit=6 # This is the Load threshold that is to be set by your server requirements.

if [ $Load -lt $LoadLimit ]
then

exit 1

else

echo "Load is High " $Load

# email subject
SUBJECT="LOAD is $LoadFloat in CP6!!!"
# Email To ?
EMAIL="9207421@way2sms.com"
# Email text/message
EMAILMESSAGE="/tmp/emailmessage.txt"
echo "Hi Team, " > $EMAILMESSAGE
echo " " >> $EMAILMESSAGE
echo " " >> $EMAILMESSAGE
echo "The Load in CP6 is $LoadFloat">> $EMAILMESSAGE
echo "Please Login and Have a check Immediately!!!!" >>$EMAILMESSAGE
echo " " >> $EMAILMESSAGE
echo " " >> $EMAILMESSAGE
echo "Regards," >> $EMAILMESSAGE
echo "System Admin" >> $EMAILMESSAGE

# send an email using /bin/mail

/bin/mail -s "$SUBJECT" "$EMAIL" < $EMAILMESSAGE

fi



Note: You can deploy this script as follows

1. create a file loadchecker with the above content.
2. give the execute permission by chmod +x loadchecker .
3. Enter the script in crontab.

Add the line for executing the script for every 2 minutes.

*/2 * * * * /root/loadchecker


If you don't know what value to set as threshold please go through the link Understanding Load Average

Happy Shooting ;-)

Comments

Post a Comment

Popular posts from this blog

Password reset too simplistic/systematic issue

Some time when we try to reset the password of our user in linux it will show as simple and systematic as below: BAD PASSWORD: it is too simplistic/systematic no matter how hard password you give it will show the same. Solution: ######### Check if your password is Ok with the below command, jino@ndz~$ echo 'D7y8HK#56r89lj&8*&^%&^%#56rlKJ!789l' | cracklib-check D7y8HK#56r89lj&8*&^%&^%#56rlKJ!789l: it is too simplistic/systematic Now Create a password with the below command : jino@ndz~$ echo $(tr -dc '[:graph:]' 7\xi%!W[y*S}g-H7W~gbEB4cv,9:E:K; You can see that this password will be ok with the cracklib-check. jino@ndz~$ echo '7\xi%!W[y*S}g-H7W~gbEB4cv,9:E:K;' | cracklib-check                 7\xi%!W[y*S}g-H7W~gbEB4cv,9:E:K;: OK Thats all, Thanks.
Post a Comment
Read more

Setting /etc/hosts entries during the initial deployment of an Application using k8s yaml file

Some times we have to enter specific hosts file entries to the container running inside the POD of a kubernetes deployment during the initial deployment stage itself. If these entries are not in place, the application env variables mentioned in the yaml file , as hostnames , will not resolve to the IP address and the application will not start properly. So to make sure the /etc/hosts file entries are already there after the spin up of the POD you can add the below entries in your yaml file. cat > api-deployment.yaml apiVersion: apps/v1 kind: Deployment metadata: spec:   template:     metadata:     spec:       volumes:       containers:       - image: registryserver.jinojoseph.com:5000/jinojosephimage:v1.13         lifecycle:           postStart:             exec:               command:...
Post a Comment
Read more

Running K8s cluster service kubelet with Swap Memory Enabled

For enabling swap memory check the below link : https://jinojoseph.blogspot.com/2019/10/enable-swap-memory-using-swapfile-in.html # sudo vi /etc/systemd/system/kubelet.service.d/10-kubeadm.conf Add the KUBELET_EXTRA_ARGS line as below: ---------------------------------------- Environment="KUBELET_EXTRA_ARGS=--fail-swap-on=false" ExecStart= ExecStart=/usr/bin/kubelet $KUBELET_KUBECONFIG_ARGS $KUBELET_CONFIG_ARGS $KUBELET_KUBEADM_ARGS $KUBELET_EXTRA_ARGS Now kubelet.service changed on disk. Run 'systemctl daemon-reload' to reload units # sudo systemctl daemon-reload # sudo systemctl restart kubelet # sudo systemctl status kubelet That is all cheers :p
Post a Comment
Read more