cpufreqd config for Linux Mint laptop
Just for history, my config for cpufreqd
Ubuntu power consumption on the laptop with Intel 1065G7
For daily use, i set the ‘powersave’ mode in Ubuntu/Mint OS but see that cpu frequency is around 2.5-3GHz all the time When i checked scaling_governor – it was all fine and showed me ‘powersave’ mode And found that somehow the min_freq is set as 3GHz So, simply execute a basic inline Bash command to… Читати далі »
Haproxy: convert http1.1 request from the client to http2 on the backend side
For example, you are using this sample config And get an error: It happens because your backend server uses only h2 (http2) and due to this thread https://www.mail-archive.com/haproxy@formilux.org/msg43261.html you should set the “:authority” pseudo-header It can be done by adding ‘set-uri’ in the config
Disable SMT from running Linux
Sometimes we need to stop SMT on CPU for unlock the max frequency For one core Globally
Mongo: Force move Secondary to Primary
If happen that your cluster is degraded, for example, two nodes dead in PSS configuration, and the last node is in status Secondary. Then we can force move this node to Primary Remove old nodes maybe change the priority on some members And force apply changes on Secondary
Kafka: deleting offset of a consumer group from a topic
After Kafka 2.8
Prevent storing huge transaction logs in Zookeeper
After some time of work Zookeeper writes a huge transaction log and adding any new event in the log makes fsync to FS very long Logs: To prevent size growth we can add two options to Zookeeper In config file: Or via Env variables when running in Docker This options will keep only last 7… Читати далі »
Git: warning: Not a git repository
When you try to update/pull or get a diff for the Git repository, you can get a warning: It is because the new version of Git forbidden to run git commands in a directory that is not owned by the current user ( CVE-2022-24765 ) To fix, you need to change permission for the directory… Читати далі »
Run CentOS 8 in rescue mode to change root password
In case you forgot the root password or can’t login to the CentOS, we can start OS by editing kernel boot options in Grub When the system is booting press any key (left, right, top, down) on Grub screen Select the kernel you need to run and press ‘e’ to open the editor
Debezium: getaddrinfo() thread failed to start
When building debezium-connect image on Gitlab runners had error After running all commands in Container found the problem Bug on Fedora issue tracker https://bugzilla.redhat.com/show_bug.cgi?id=2019901 Fix by running a container with security options or add config to Runner