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Posted to user@hbase.apache.org by SiMaYunRui <my...@hotmail.com> on 2014/08/15 15:24:28 UTC

how to debug hbase standalone?








Hi, 

 

I am
writing to ask how to debug hbase-0.98 standalone mode thru eclipse. 

 

First I
imported hbase-0.98.2 into eclipse, and compiled successfully thru "mvn
clean install -DskipTests". Then I got an ClassNotFoundException when I
tried to debug/run the java application with main class configured as
"org.apache.hadoop.hbase.master.HMaster". I tried to add
hbase-server.jar into Classpath, still no luck. 

 

 

Later I
tried remote debug. I downloaded hbase-0.98.2-hadoop2.bin.tar. After modified
"hbase" to enable remote debug, I could successfully start hbase.
Then I can make eclipse remote connect to the started java application thru
configured port. I can see the debug view and thread suspended. But my source
code cannot by loaded correctly, "Source not found" error appears
even I have right setting in Source Lookup dialog. 

 

 

I read
lots of articles including reference book. But none of them actually work.
What's right way/configuration to debug HBase?  
RegardsYunsima

RE: how to debug hbase standalone?

Posted by SiMaYunRui <my...@hotmail.com>.

Thanks Nick. I switched to IntelliJ, remote debug works well now. It's possible my eclipse issue, but anyway, it works perfect for me now. Thanks a lot. :-) 

> From: ndimiduk@gmail.com
> Date: Fri, 15 Aug 2014 12:58:58 -0700
> Subject: Re: how to debug hbase standalone?
> To: user@hbase.apache.org
> 
> I debug a local hbase out of my git checkout by attaching to the remote
> process. I edit hbase-env.sh (there are lines you can uncomment) to start
> the processes with debugging enabled. Then from my dev environment
> (IntelliJ), I point it at the port and everything works.
> 
> I imagine it would work similarly if you've built from the sources in a
> dist tarball. It should be also possible to pull src jars from maven if
> you're working from a release.
> 
> How have you setup eclipse? Can you create a project from the hbase/pom.xml
> ?
> 
> -n
> 
> 
> On Fri, Aug 15, 2014 at 6:24 AM, SiMaYunRui <my...@hotmail.com> wrote:
> 
> >
> >
> >
> >
> >
> >
> >
> >
> > Hi,
> >
> >
> >
> > I am
> > writing to ask how to debug hbase-0.98 standalone mode thru eclipse.
> >
> >
> >
> > First I
> > imported hbase-0.98.2 into eclipse, and compiled successfully thru "mvn
> > clean install -DskipTests". Then I got an ClassNotFoundException when I
> > tried to debug/run the java application with main class configured as
> > "org.apache.hadoop.hbase.master.HMaster". I tried to add
> > hbase-server.jar into Classpath, still no luck.
> >
> >
> >
> >
> >
> > Later I
> > tried remote debug. I downloaded hbase-0.98.2-hadoop2.bin.tar. After
> > modified
> > "hbase" to enable remote debug, I could successfully start hbase.
> > Then I can make eclipse remote connect to the started java application thru
> > configured port. I can see the debug view and thread suspended. But my
> > source
> > code cannot by loaded correctly, "Source not found" error appears
> > even I have right setting in Source Lookup dialog.
> >
> >
> >
> >
> >
> > I read
> > lots of articles including reference book. But none of them actually work.
> > What's right way/configuration to debug HBase?
> > RegardsYunsima
> >
> >

Re: how to debug hbase standalone?

Posted by Nick Dimiduk <nd...@gmail.com>.

I debug a local hbase out of my git checkout by attaching to the remote
process. I edit hbase-env.sh (there are lines you can uncomment) to start
the processes with debugging enabled. Then from my dev environment
(IntelliJ), I point it at the port and everything works.

I imagine it would work similarly if you've built from the sources in a
dist tarball. It should be also possible to pull src jars from maven if
you're working from a release.

How have you setup eclipse? Can you create a project from the hbase/pom.xml
?

-n

On Fri, Aug 15, 2014 at 6:24 AM, SiMaYunRui <my...@hotmail.com> wrote:

>
>
>
>
>
>
>
>
> Hi,
>
>
>
> I am
> writing to ask how to debug hbase-0.98 standalone mode thru eclipse.
>
>
>
> First I
> imported hbase-0.98.2 into eclipse, and compiled successfully thru "mvn
> clean install -DskipTests". Then I got an ClassNotFoundException when I
> tried to debug/run the java application with main class configured as
> "org.apache.hadoop.hbase.master.HMaster". I tried to add
> hbase-server.jar into Classpath, still no luck.
>
>
>
>
>
> Later I
> tried remote debug. I downloaded hbase-0.98.2-hadoop2.bin.tar. After
> modified
> "hbase" to enable remote debug, I could successfully start hbase.
> Then I can make eclipse remote connect to the started java application thru
> configured port. I can see the debug view and thread suspended. But my
> source
> code cannot by loaded correctly, "Source not found" error appears
> even I have right setting in Source Lookup dialog.
>
>
>
>
>
> I read
> lots of articles including reference book. But none of them actually work.
> What's right way/configuration to debug HBase?
> RegardsYunsima
>
>