maven - Elastic Search error -


i 'm intending fix bugs on elastic search open-source project. forked , cloned forked copy . imported maven project on eclipse , did maven build . far good. opened elasticsearchf.java file , tried run java application.(this per directions written in http://www.lindstromhenrik.com/debugging-elasticsearch-in-eclipse/).

but error saying path.home not set elasticsearch , throws error saying illegalstateexception.

my question

  1. why error coming in first place.
  2. as said , want fix bugs in elasticsearch project.is right way set-up environment goal? or should have client send requests elasticsearch server , set-up debug points in elastic search source code. how achieve this?

thanks patience.

update: did add vm argument mentioned 1 of answerers.

then throws different errors , clue-less why throwing that. 

java.io.ioexception: resource not found: "org/joda/time/tz/data/zoneinfomap" classloader: sun.misc.launcher$appclassloader@29578426     @ org.joda.time.tz.zoneinfoprovider.openresource(zoneinfoprovider.java:210)     @ org.joda.time.tz.zoneinfoprovider.<init>(zoneinfoprovider.java:127)     @ org.joda.time.tz.zoneinfoprovider.<init>(zoneinfoprovider.java:86)     @ org.joda.time.datetimezone.getdefaultprovider(datetimezone.java:514)     @ org.joda.time.datetimezone.getprovider(datetimezone.java:413)     @ org.joda.time.datetimezone.forid(datetimezone.java:216)     @ org.joda.time.datetimezone.getdefault(datetimezone.java:151)     @ org.joda.time.chrono.isochronology.getinstance(isochronology.java:79)     @ org.joda.time.datetimeutils.getchronology(datetimeutils.java:266)     @ org.joda.time.format.datetimeformatter.selectchronology(datetimeformatter.java:968)     @ org.joda.time.format.datetimeformatter.printto(datetimeformatter.java:672)     @ org.joda.time.format.datetimeformatter.printto(datetimeformatter.java:560)     @ org.joda.time.format.datetimeformatter.print(datetimeformatter.java:644)     @ org.elasticsearch.build.<clinit>(build.java:53)     @ org.elasticsearch.node.node.<init>(node.java:138)     @ org.elasticsearch.node.nodebuilder.build(nodebuilder.java:157)     @ org.elasticsearch.bootstrap.bootstrap.setup(bootstrap.java:177)     @ org.elasticsearch.bootstrap.bootstrap.main(bootstrap.java:278)     @ org.elasticsearch.bootstrap.elasticsearchf.main(elasticsearchf.java:30) [2015-06-16 18:51:36,892][info ][node                     ] [kismet deadly] version[2.0.0-snapshot], pid[2516], build[9b833fd/2015-06-15t03:38:40z] [2015-06-16 18:51:36,892][info ][node                     ] [kismet deadly] initializing ... [2015-06-16 18:51:36,899][info ][plugins                  ] [kismet deadly] loaded [], sites [] {2.0.0-snapshot}: initialization failed ... - exceptionininitializererror     illegalargumentexception[an spi class of type org.apache.lucene.codecs.postingsformat name 'lucene50' not exist.  need add corresponding jar file supporting spi classpath.  current classpath supports following names: [es090, completion090, xbloomfilter]]

i got developer community in https://github.com/elastic/elasticsearch/issues/12737 , able debug it.

procedure in short :

1) search file elasticsearch.java/elasticsearchf.java inside package org.elasticsearch.bootstrap .

2) right click -> run configurations...

3) in window pops , click "arguments" tab , under "program arguments:" section give value start , under "vm arguments:" section give value as
-des.path.home={path elasticsearch code base root folder}/core -des.security.manager.enabled=false

4) click "apply" , click "run".

it runs now. check , go localhost:9200 , message like

 {   "name" : "raza",   "cluster_name" : "elasticsearch",   "version" : {     "number" : "2.0.0-beta1",     "build_hash" : "${buildnumber}",     "build_timestamp" : "na",     "build_snapshot" : true,     "lucene_version" : "5.2.1"   },   "tagline" : "you know, search" }

for more info on arguments see : https://github.com/elastic/elasticsearch/commit/2b9ef26006c0e4608110164480b8127dffb9d6ad


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