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Posted to dev@reef.apache.org by Tobin Baker <td...@cs.washington.edu> on 2015/10/14 07:15:41 UTC

best way to add native libraries to Evaluator?

I'm trying to use a Java library (sqlite4java) that uses a JNI shared
library. I could use the new JVM options feature in 0.12 to specify
-Djava.library.path= to JVMProcess.addOption() in EvaluatorAllocatedHandler,
but I don't know the appropriate value of java.library.path for the
evaluator. I tried adding my native library to
DriverConfiguration.GLOBAL_FILES and DriverConfiguration.GLOBAL_LIBRARIES,
but that didn't seem to work. Any ideas?

Thanks,
Tobin

Re: best way to add native libraries to Evaluator?

Posted by Tobin Baker <td...@cs.washington.edu>.

Thanks! That worked.

On Wed, Oct 14, 2015 at 3:08 AM, Markus Weimer <ma...@weimo.de> wrote:

> Hi,
>
> the files you add to the Driver's global files will be in
> `reef/global/` within the current working directory of the Driver and
> all Evaluators. You should be able to add that path to the JVM
> options. If that doesn't work, we might have to investigate more
> formal support for JNI libraries.
>
> Markus
>
> On Wed, Oct 14, 2015 at 7:15 AM, Tobin Baker <td...@cs.washington.edu>
> wrote:
> > I'm trying to use a Java library (sqlite4java) that uses a JNI shared
> > library. I could use the new JVM options feature in 0.12 to specify
> > -Djava.library.path= to JVMProcess.addOption() in
> EvaluatorAllocatedHandler,
> > but I don't know the appropriate value of java.library.path for the
> > evaluator. I tried adding my native library to
> > DriverConfiguration.GLOBAL_FILES and
> DriverConfiguration.GLOBAL_LIBRARIES,
> > but that didn't seem to work. Any ideas?
> >
> > Thanks,
> > Tobin
>

Re: best way to add native libraries to Evaluator?

Posted by Markus Weimer <ma...@weimo.de>.

Hi,

the files you add to the Driver's global files will be in
`reef/global/` within the current working directory of the Driver and
all Evaluators. You should be able to add that path to the JVM
options. If that doesn't work, we might have to investigate more
formal support for JNI libraries.

Markus

On Wed, Oct 14, 2015 at 7:15 AM, Tobin Baker <td...@cs.washington.edu> wrote:
> I'm trying to use a Java library (sqlite4java) that uses a JNI shared
> library. I could use the new JVM options feature in 0.12 to specify
> -Djava.library.path= to JVMProcess.addOption() in EvaluatorAllocatedHandler,
> but I don't know the appropriate value of java.library.path for the
> evaluator. I tried adding my native library to
> DriverConfiguration.GLOBAL_FILES and DriverConfiguration.GLOBAL_LIBRARIES,
> but that didn't seem to work. Any ideas?
>
> Thanks,
> Tobin