1. Passwordless Login Edit /etc/my.cnf and add a line under [mysqld]: skip-grant-tables=1 Restart the mysqld service 1 systemctl restart mysqld Log in to MySQL as the root user 1 mysql -u root 2. Allow All Access Sources Log in to MySQL 1 mysql -u root -p At the MySQL interactive command line, enter:

1. Bloom’s Taxonomy Bloom’s taxonomy is a classification scheme proposed by the American educational psychologist Benjamin Bloom in 1956 at the University of Chicago. It classifies educators’ teaching objectives so that each objective can be achieved more effectively. According to Bloom’s theory, knowledge can be divided into the following three

1. Interview Process Establish hiring criteria Align on hiring criteria Resume analysis Opening small talk Competency assessment Values assessment Verifying authenticity Motivation assessment Attracting strong candidates Closing the interview Filling out the interview evaluation form Assisting with onboarding follow-up 2. Before the Interview 2.1 Establish Hiring Criteria why Evaluate candidates with a unified assessment standard

Clusters that run for a long time often face various kinds of resource exhaustion. On top of that, when disk space runs low, Kubelet will proactively clean up images on its own, adding another source of uncertainty. This article provides some command snippets for cleanup work. 1. Cleaning Up Basic Kubernetes Objects Clean up Pods in Evicted state 1 sudo kubectl get pods --all-namespaces -o wide | grep Evicted | awk '{print $1,$2}' | sudo xargs -L1 kubectl delete pod -n Clean up Pods in Error state 1 sudo kubectl get pods --all-namespaces -o wide | grep Error | awk '{print $1,$2}' | sudo xargs -L1 kubectl delete pod -n Clean up Pods in Completed state 1 sudo kubectl get pods --all-namespaces -o wide | grep Completed | awk '{print $1,$2}' | sudo xargs -L1 kubectl delete pod -n Clean up unused PVs 1 sudo kubectl describe -A pvc | grep -E "^Name:.

1. How Logstash Works Logstash is a component for data transport and processing. Through combinations of plugins, Logstash can handle a wide variety of log collection scenarios: logstash->elasticsearch filebeat->logstash->elasticsearch filebeat->kafka->logstash->elasticsearch filebeat->redis->logstash->elasticsearch 2. Basic Logstash Configuration Here is the format of a Logstash configuration: 1 2 3 4 5 6 7