Categories
DevOps

How to display ZooKeeper state for each server

Display ZooKeeper state for each server using the four-letter commands.

Categories
DevOps

How to update reconfigurable properties on Hadoop node

Update reconfigurable properties on Hadoop node without restart.

Categories
DailyOps

How to use solid color instead of picture on Ubuntu desktop

Use solid color instead of picture on Ubuntu desktop.

Categories
DevOps

How to wait until service is running inside ansible playbook

Wait until service is stopped or running inside ansible playbook.

Categories
DevOps

How to put Hadoop datanodes in maintenance state

Use JSON-based configuration format for Hadoop datanodes to create a whitelist and control put these in normal, decommissioned or maintenance state.

Categories
SysOps

How to use LVM thin provisioning

Configure and use LVM thin provisioning.

Categories
DevOps

How to reassign Kafka topic partitions

Reassign Kafka topic partitions.

Categories
DailyOps

How to identify YubiKey using dynamic device manager

Identify YubiKey device using dynamic device manager to send desktop notification.