[HADOOP-9162] Add utility to check native library availability

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.3-alpha, 3.0.0-alpha1
• Fix Version/s: 2.0.3-alpha
• Component/s: native
• Target Version/s: 2.0.3-alpha
• Hadoop Flags: Reviewed
• Assignee: Binglin Chang
• Reporter: Binglin Chang
• Created: 20/Dec/12 16:26
• Updated: 12/May/16 18:23
• Resolved: 23/Dec/12 02:35

Description

Many times, after deploy hadoop or when trouble shooting, we need to check whether native library(along with native compression libraries) can work properly, and I just want to use one command to check that, like this:

hadoop org.apache.hadoop.util.NativeCodeLoader

and it shows:

Native library loading test:
hadoop: false
zlib: false
snappy: false
lz4: false

Issue Links

• is related to: HADOOP-9831 Make checknative shell command accessible on Windows.