Error description:
tar xvf hadoop-3.0.0-src.tar.gz
gzip: stdin: not in gzip format
tar: Child returned status 1
tar: Error is not recoverable: exiting now
Analyse:
1. The type of file may be incorrect.
2. Downloaded file didn‘t correctly completed.
How to check? by file command
file hadoop-3.0.0-src.tar.gz
hadoop-3.0.0-src.tar.gz: HTML document text