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From John Bickerstaff <j...@johnbickerstaff.com>
Subject Re: running solr 6.x in Eclipse for debugging
Date Wed, 05 Oct 2016 20:30:22 GMT
OK - I'm running now in debug mode.  My intent is to add and test a "hello
world" plugin to prove everything is wired up and that I can debug all the
way into the plugin I wrote...

I want to test plugins/addons which, as I understand it go here if you're
adding them to an installed version of Solr.

solr-6.x.x/server/solr-webapp/webapp/WEB-INF/lib/

So - to get that all working (build and seeing source when in debug mode)...

1. Where, exactly, should I place the source code for a new plugin that is
NOT a part of the Solr distribution if I want to be able to debug through
that code as well?  (I understand that the appropriate entries will need to
be in the correct xml files in the core/collection configurations)

2. Will I need to change the build.xml files in some way?  If yes, please
tell me how, I'm unfamiliar with Ant.

3. In case I'm in "X/Y problem mode" here - My goal is: Add plugin source
code, build, make config changes where needed, and see source when I put a
breakpoint in code.



On Wed, Oct 5, 2016 at 12:04 PM, John Bickerstaff <john@johnbickerstaff.com>
wrote:

> Thanks Mikhail!
>
> On Wed, Oct 5, 2016 at 11:29 AM, Mikhail Khludnev <mkhl@apache.org> wrote:
>
>> ok. it's "run-example" [ ..@solr]$ant -p
>>  run-example                  Run Solr interactively, via Jetty.
>> -Dexample.debug=true to en
>> able JVM debugger
>> I have it in master and branch_6x
>>
>> On Wed, Oct 5, 2016 at 5:51 PM, John Bickerstaff <
>> john@johnbickerstaff.com>
>> wrote:
>>
>> > Mikhail -- which version of Solr are you using to do this [ant example
>> > -Dexample.debug=true]
>> >
>> > I may be wrong, but it seems that "example" no longer works with 6.x...?
>> >
>> > On Wed, Oct 5, 2016 at 1:14 AM, Mikhail Khludnev <mkhl@apache.org>
>> wrote:
>> >
>> > > launching ant example -Dexample.debug=true from Exlipse works to me.
>> > > It takes a while for useless compile checks, then you can debug
>> remotely
>> > to
>> > > 5005.
>> > > Jetty process need to be terminated separately. SolrAdmin works,
>> > debugging
>> > > with sources works too.
>> > > However, there is no cores my default, you need to create them
>> manually.
>> > >
>> > > Probably the better way is to launch ant server, and then bin{\}solr
>> > start
>> > > -e ... -a ... and connect debugger remotely.
>> > >
>> > > On Wed, Oct 5, 2016 at 7:19 AM, Erick Erickson <
>> erickerickson@gmail.com>
>> > > wrote:
>> > >
>> > > > Warning: I use IntelliJ, but I think Eclipse works similarly.
>> > > >
>> > > > I'm a bit confused. Are you trying to _start_ Solr from
>> > > > within Eclipse? Or starting it from a command prompt?
>> > > >
>> > > > I do the latter and then attach a remote debugging session
>> > > > from within the IDE, which is what I think that link suggests too.
>> > > >
>> > > > I also build 'ant server dist' from the install_dir/solr directory
>> > first.
>> > > > The 'ant eclipse' target just builds the project structure for
>> Eclipse,
>> > > > it doesn't build Solr.
>> > > >
>> > > > YMMV of course since you're using a different IDE.
>> > > >
>> > > > Best,
>> > > > Erick
>> > > >
>> > > >
>> > > > On Tue, Oct 4, 2016 at 5:27 PM, John Bickerstaff
>> > > > <john@johnbickerstaff.com> wrote:
>> > > > > Thanks!
>> > > > >
>> > > > > This works...
>> > > > >
>> > > > > I'm getting a (possibly unrelated?) warning and can't hit the
>> Admin
>> > > page
>> > > > (I
>> > > > > get a 503).  I DO see eclipse "hook into" the debug session which
>> is
>> > > > > excellent.
>> > > > >
>> > > > > The warning resolves to this:
>> > > > >
>> > > > > java.io.FileNotFoundException:
>> > > > > /Users/.../.../workspace/solr-6.2.1/solr/server/solr-webapp/
>> webapp
>> > > > >
>> > > > > Full stack trace below...
>> > > > >
>> > > > > I built the project using ant and ivy for eclipse.
>> > > > >
>> > > > > ant eclipse (inside the solr6.x.x directory per the instructions
I
>> > > > > referenced)
>> > > > >
>> > > > > I did not see a way to build the jetty portion - and perhaps
>> that's
>> > > what
>> > > > > the problem is -- although the instructions here (
>> > > > > http://opensourceconnections.com/blog/2013/04/13/how-to-
>> > > > debug-solr-with-eclipse/)
>> > > > > about building jetty don't seem to work with this version of
>> Solr...
>> > > > >
>> > > > > Any suggestions welcome.  It seems to me the jetty jars are all
>> there
>> > > but
>> > > > > maybe I'm missing something.  Especially since the stack trace
is
>> > > > > complaining about "Web application not found"
>> > > > >
>> > > > > I'll dig into it more tomorrow...
>> > > > >
>> > > > > =========
>> > > > >
>> > > > > stack trace:
>> > > > >
>> > > > > 220  WARN  (main) [   ] o.e.j.w.WebInfConfiguration Web
>> application
>> > not
>> > > > > found
>> > > > > /Users/.../Documents/workspace/solr-6.2.1/solr/
>> > > server/solr-webapp/webapp
>> > > > > 221  WARN  (main) [   ] o.e.j.w.WebAppContext Failed startup
of
>> > context
>> > > > > o.e.j.w.WebAppContext@3b0090a4
>> > > > > {/solr,null,null}{/Users/jbickerstaff/Documents/
>> > > > workspace/solr-6.2.1/solr/server/solr-webapp/webapp}
>> > > > > java.io.FileNotFoundException:
>> > > > > /Users/.../Documents/workspace/solr-6.2.1/solr/
>> > > server/solr-webapp/webapp
>> > > > > at
>> > > > > org.eclipse.jetty.webapp.WebInfConfiguration.unpack(
>> > > > WebInfConfiguration.java:497)
>> > > > > at
>> > > > > org.eclipse.jetty.webapp.WebInfConfiguration.preConfigure(
>> > > > WebInfConfiguration.java:72)
>> > > > > at
>> > > > > org.eclipse.jetty.webapp.WebAppContext.preConfigure(
>> > > > WebAppContext.java:480)
>> > > > > at org.eclipse.jetty.webapp.WebAppContext.doStart(
>> > > > WebAppContext.java:516)
>> > > > > at
>> > > > > org.eclipse.jetty.util.component.AbstractLifeCycle.
>> > > > start(AbstractLifeCycle.java:68)
>> > > > > at
>> > > > > org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(
>> > > > StandardStarter.java:41)
>> > > > > at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(
>> > > > AppLifeCycle.java:188)
>> > > > > at
>> > > > > org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(
>> > > > DeploymentManager.java:499)
>> > > > > at
>> > > > > org.eclipse.jetty.deploy.DeploymentManager.addApp(
>> > > > DeploymentManager.java:147)
>> > > > > at
>> > > > > org.eclipse.jetty.deploy.providers.ScanningAppProvider.
>> > > > fileAdded(ScanningAppProvider.java:180)
>> > > > > at
>> > > > > org.eclipse.jetty.deploy.providers.WebAppProvider.
>> > > > fileAdded(WebAppProvider.java:458)
>> > > > > at
>> > > > > org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.
>> fileAdded(
>> > > > ScanningAppProvider.java:64)
>> > > > > at org.eclipse.jetty.util.Scanner.reportAddition(Scanner.java:
>> 610)
>> > > > > at org.eclipse.jetty.util.Scanner.reportDifferences(
>> > Scanner.java:529)
>> > > > > at org.eclipse.jetty.util.Scanner.scan(Scanner.java:392)
>> > > > > at org.eclipse.jetty.util.Scanner.doStart(Scanner.java:313)
>> > > > > at
>> > > > > org.eclipse.jetty.util.component.AbstractLifeCycle.
>> > > > start(AbstractLifeCycle.java:68)
>> > > > > at
>> > > > > org.eclipse.jetty.deploy.providers.ScanningAppProvider.
>> > > > doStart(ScanningAppProvider.java:150)
>> > > > > at
>> > > > > org.eclipse.jetty.util.component.AbstractLifeCycle.
>> > > > start(AbstractLifeCycle.java:68)
>> > > > > at
>> > > > > org.eclipse.jetty.deploy.DeploymentManager.startAppProvider(
>> > > > DeploymentManager.java:561)
>> > > > > at
>> > > > > org.eclipse.jetty.deploy.DeploymentManager.doStart(
>> > > > DeploymentManager.java:236)
>> > > > > at
>> > > > > org.eclipse.jetty.util.component.AbstractLifeCycle.
>> > > > start(AbstractLifeCycle.java:68)
>> > > > > at
>> > > > > org.eclipse.jetty.util.component.ContainerLifeCycle.
>> > > > start(ContainerLifeCycle.java:132)
>> > > > > at org.eclipse.jetty.server.Server.start(Server.java:405)
>> > > > > at
>> > > > > org.eclipse.jetty.util.component.ContainerLifeCycle.
>> > > > doStart(ContainerLifeCycle.java:114)
>> > > > > at
>> > > > > org.eclipse.jetty.server.handler.AbstractHandler.
>> > > > doStart(AbstractHandler.java:61)
>> > > > > at org.eclipse.jetty.server.Server.doStart(Server.java:372)
>> > > > > at
>> > > > > org.eclipse.jetty.util.component.AbstractLifeCycle.
>> > > > start(AbstractLifeCycle.java:68)
>> > > > > at org.eclipse.jetty.xml.XmlConfiguration$1.run(
>> > > > XmlConfiguration.java:1510)
>> > > > > at java.security.AccessController.doPrivileged(Native Method)
>> > > > > at org.eclipse.jetty.xml.XmlConfiguration.main(
>> > > > XmlConfiguration.java:1435)
>> > > > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> > > > > at
>> > > > > sun.reflect.NativeMethodAccessorImpl.invoke(
>> > > > NativeMethodAccessorImpl.java:62)
>> > > > > at
>> > > > > sun.reflect.DelegatingMethodAccessorImpl.invoke(
>> > > > DelegatingMethodAccessorImpl.java:43)
>> > > > > at java.lang.reflect.Method.invoke(Method.java:498)
>> > > > > at org.eclipse.jetty.start.Main.invokeMain(Main.java:214)
>> > > > > at org.eclipse.jetty.start.Main.start(Main.java:457)
>> > > > > at org.eclipse.jetty.start.Main.main(Main.java:75)
>> > > > > 240  INFO  (main) [   ] o.e.j.s.ServerConnector Started
>> > > > > ServerConnector@68e5eea7{HTTP/1.1,[http/1.1]}{0.0.0.0:8983}
>> > > > > 240  INFO  (main) [   ] o.e.j.s.Server Started @18534ms
>> > > > >
>> > > > >
>> > > > >
>> > > > > On Tue, Oct 4, 2016 at 4:45 PM, Jihwan Kim <jihwan11@gmail.com>
>> > wrote:
>> > > > >
>> > > > >> I read your first reference and run the following command
on the
>> > > > >> Solr_Installed Dir.  I am using v. 6.2.0 and 4.10.4.  both
works.
>> > > > >>
>> > > > >> bin/solr start -f -a "-Xdebug
>> > > > >> -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=7666"
>> > > > >>
>> > > > >> On Tue, Oct 4, 2016 at 5:26 PM, John Bickerstaff <
>> > > > john@johnbickerstaff.com
>> > > > >> >
>> > > > >> wrote:
>> > > > >>
>> > > > >> > All,
>> > > > >> >
>> > > > >> > I've found some hints, but can't get Solr running in
debug
>> mode in
>> > > > >> eclipse
>> > > > >> > with the instructions
>> > > > >> >
>> > > > >> > Here:
>> > > > >> > http://opensourceconnections.com/blog/2013/04/13/how-to-
>> > > > >> > debug-solr-with-eclipse/
>> > > > >> >
>> > > > >> > or Here: http://wiki.apache.org/solr/HowToConfigureEclipse
>> > > > >> >
>> > > > >> > When I run this command from the wiki : java -Xdebug
>> > > > >> > -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=7666
>> > -jar
>> > > > >> > start.jar
>> > > > >> >
>> > > > >> > I get an error: WARNING: Nothing to start, exiting ...
>> > > > >> >
>> > > > >> > I can't start the jar file "normally" either and it
turns out
>> to
>> > be
>> > > a
>> > > > >> > symlink.
>> > > > >> >
>> > > > >> > I'm thinking that things are different now given that
the way
>> to
>> > > start
>> > > > >> Solr
>> > > > >> > is this way:
>> > > > >> >
>> > > > >> > bin/solr start -e cloud -noprompt
>> > > > >> >
>> > > > >> > Can anyone point me at documentation or drop a hint?
>> > > > >> >
>> > > > >>
>> > > >
>> > >
>> > >
>> > >
>> > > --
>> > > Sincerely yours
>> > > Mikhail Khludnev
>> > >
>> >
>>
>>
>>
>> --
>> Sincerely yours
>> Mikhail Khludnev
>>
>
>

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