Update Hadoop heartbeat interval to mark data node as dead at the predefined period of time depending on your requirement.
Categories
Category: SysOps
System Operations
Categories
How to perform reverse DNS lookups
Perform reverse DNS lookups to map addresses to names.
Categories
How to validate Hadoop configuration files
Validate Hadoop configuration XML files.
Determine which SSH public key was uploaded to the web service.
Categories
How to configure Hadoop topology mapping
Configure Hadoop topology mapping using TXT DNS records.
Display IP address in a more readable format.
Categories
How to perform basic HDFS operations
Let’s perform basic HDFS operations.
Switch from Dropbear to OpenSSH on DietPi.
Display current mappings for encrypted devices (LUKS) .
Open LUKS2 encrypted volume on a low memory device.