py4j.protocol.Py4JNetworkError: Answer from Java side is empty

[wkl1990]

I think the problem is the library of OpenBLAS. I added the ‘libopenblas.so’ to ‘LD_LIBRARY_PATH’ followed https://github.com/hail-is/hail/issues/5559. Now hail works well.

[Nitha]

@wkl1990 Thank you. Will check it once again.

[TDeepak]

@tpoterba

This error can occur on linux systems for which Hail doesn’t precomile native libraries, like centos. The solution is to run:

./gradlew releaseJar instead of ./gradlew shadowJar to build the jar – this will compile the native libraries as well.

Note that the mechanisms for building Hail are subject to change.

Hi tpoterba,

I’m also having similar error. Can you tell me where I need to do this change or run? I’m new to this.

Thanks and Regards,
Tanneeru Deepak.

[tpoterba]

For latest installation instructions, see here:

https://hail.is/docs/0.2/getting_started_developing.html#building-hail