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From Joe Witt <>
Subject Re: PutHDFS and LZ4 compression ERROR
Date Wed, 30 Mar 2016 03:00:08 GMT

Can you share the full stack trace that should be present in the log
with that?  There is clearly a bit of Java code attempting to load the
native library and unable to find it.  Placing the jar file in the
classpath which contains the native library may well not be enough
because loading the native libraries requires specific settings.


On Tue, Mar 29, 2016 at 12:24 PM, Thad Guidry <> wrote:
> I get an error:
> 13:04:51 CDT
> 765efcb2-5ab0-4a72-a86f-71865dec264d
> PutHDFS[id=765efcb2-5ab0-4a72-a86f-71865dec264d] Failed to write to HDFS due
> to java.lang.RuntimeException: native lz4 library not available:
> java.lang.RuntimeException: native lz4 library not available
> even though I built successfully LZ4
> for my Windows 7 64bit using Ant, Ivy, and Mingw-w64
> and placed that built lz4-1.3-SNAPSHOT.jar into the nifi/lib folder
> and where it is getting picked up by NiFi bootstrap.Command just fine.
> yet the error persists.
> I'm wondering if
> might actually not be using the Java port but instead the JNI binding or
> some such as described here
> ?
> Thad
> +ThadGuidry

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