Re: What is IGNITE_HOME for and is it required?

[vkulichenko <va...@gmail.com>]

kevin wrote
> I am running my program with Ignite as a Maven dependency. If I package my
> program in a jar and try to run it, Ignite will throw an error when it
> tries to start up.
> 
> Caused by: java.lang.IllegalArgumentException: URI is not hierarchical
>         at java.io.File.
> <init>
> (Unknown Source)
>         at
> org.apache.ignite.internal.util.IgniteUtils.resolveProjectHome(IgniteUtils.java:3136)
> 
> I've never set IGNITE_HOME, but when I ran it from the IDE, it seems that
> Ignite will just try to resolve IGNITE_HOME, and continue on happily if it
> can't find it.
> 
> I tried setting IGNITE_HOME to a "random" location just to get the jar
> running, but I noticed Ignite started writing stuff to that folder (such
> as a work folder and a marshaller folder).
> 
> Is it possible to run Ignite from a jar without setting IGNITE_HOME? Where
> does Ignite write the files that would've gone under IGNITE_HOME if it
> cannot be resolved?

Hi Kevin,

IGNITE_HOME is not required and I can't figure out why it fails in your
case. What OS are you running on? Can you provide the absolute path to the
ignite-core.jar file in your .m2 repository?

If project home can't be resolved, Ignite will create work folder in your OS
temp directory. You can customize this by setting
IgniteConfiguration.setWorkDirectory() property.

-Val



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Re: What is IGNITE_HOME for and is it required?

[yakov <yz...@apache.org>]

kevin wrote
> Yes I just tested that it works with the latest build. Thanks!
> 
> Which should be the next release version that has the fix?

This will be 1.4



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Re: What is IGNITE_HOME for and is it required?

[vkulichenko <va...@gmail.com>]

kevin wrote
> This path doesn't specify a real file in the file system, so the error is
> sound.
> It would be nice if Ignite catches this exception and returns null for the
> home instead causing the grid to not start.

Kevin,

I just noticed that it's already fixed in master. Can you try with the
latest nightly build? You can take it here:
https://builds.apache.org/view/H-L/view/Ignite/job/Ignite-nightly/lastSuccessfulBuild/

-Val



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