Java.lang.UnsatisfiedLinkError:org.apache.hadoop.util.NativeCrc32.nativeComputeChunkedSums (IIl ...)

Running Hadoop and Spark programs in window eclipse will encounter the following exception error Java.lang.UnsatisfiedLinkError: Org.apache.hadoop.util.NativeCrc32.nativeComputeChunkedSums (iiljava/nio/bytebuffer;iljava/nio/bytebuffer;i iljava/lang/string; JZ) V

Specific solution, reference the Stackoverflow:hadoop error on Windows:java.lang.UnsatisfiedLinkError

This is due to the $hadoop_home/lib/native source binary package, the file defaults to 32-bit, while running under window requires 64-bit format, so you need to find online users have compiled a corresponding version of the 64-bit native package, or compile your own Hadoop source code, you can also get 64-bit native package.
After replacing in the local program, you also need to specify the JVM parameters when the program is running:-djava.library.path= $HADOOP _home/lib/native, see StackOverflow solution above

Encounter the same problem friends can refer to, and other problems, can also be posted in the comments section below, I will promptly reply to you ~

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