Decommission HDFS data node with minimal impact on the running applications.
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Category: SysOps
System Operations
Create LXD image from an existing snapshot.
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How to display Hadoop cluster report
Display Hadoop cluster report.
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How to disable Pi-hole query rate-limiting
Disable Pi-hole query rate-limiting in a local lab as rate-limited queries get a REFUSED reply and are not further processed by FTL.
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How to install DNS lookup utility
Install DNS lookup utility to perform basic DNS lookups.
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How to load native Hadoop libraries
Hadoop has a native implementation for certain components, but sometimes it does not load automatically.
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How to update Hadoop heartbeat interval
Update Hadoop heartbeat interval to mark data node as dead at the predefined period of time depending on your requirement.
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How to perform reverse DNS lookups
Perform reverse DNS lookups to map addresses to names.
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How to validate Hadoop configuration files
Validate Hadoop configuration XML files.
Determine which SSH public key was uploaded to the web service.