Create Yarn nodes whitelist.
Categories
Category: SysOps
System Operations
Save namespace on namenode and perform checkpoint on secondary namenode.
Inspect Hadoop configuration using command-line.
Categories
How to mount HDFS as a local file system
Mount HDFS as a local file system.
Categories
How to create Hadoop data nodes whitelist
Create Hadoop data nodes whitelist.
Categories
How to leave Hadoop safe mode
The Hadoop cluster enters safe mode during the name node startup till the basic indicators are met and later in case of emergency, which means that the cluster enters read-only mode.
Keep track of network latency using SmokePing on Debian Bullseye.
Use boot parameters to limit the number of available processors.
Categories
How to decommission Yarn node
Decommission Yarn node with minimal impact on the running applications.
Use dnsmasq directly to manage custom DNS records on a Pi-hole instance.