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Posted to user@gora.apache.org by Sznajder ForMailingList <bs...@gmail.com> on 2013/08/14 12:07:42 UTC

Compiling Avro Schemas

Hi

I followed the tutorial given in
http://gora.apache.org/current/tutorial.html

When reaching the section Compiling Avro schemas, the command

$ bin/gora goracompiler


returns me:

-bash-4.1$ bin/gora goracompiler gora-tutorial/src/main/avro/pageview.json
gora-tutorial/src/main/java/
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/avro/Schema
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Class.java:2451)
        at java.lang.Class.getMethod0(Class.java:2694)
        at java.lang.Class.getMethod(Class.java:1622)
        at
sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494)
        at
sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486)
Caused by: java.lang.ClassNotFoundException: org.apache.avro.Schema
        at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:356)



How can I fix that, please?

Benjamin

RE: Compiling Avro Schemas

Posted by Emir Munoz <em...@deri.org>.
Hi Benjamin,

 

For me seems that you didn't build the project using maven (i.e., mvn clean
install). Hence, you probably have an empty gora-tutorial/lib/ folder.

If not, I would recommend you to add the bin/ folder of gora to the PATH.

-bash-4.1$ export PATH=$PATH:/home/gora-0.3/bin 

 

And then execute the compiler inside gora-tutorial folder.

-bash-4.1$ gora goracompiler src/main/avro/pageview.json src/main/java/

 

Cheers,

Emir

 

 

From: Sznajder ForMailingList [mailto:bs4mailinglist@gmail.com] 
Sent: 14 August 2013 11:08
To: user@gora.apache.org
Subject: Compiling Avro Schemas

 

Hi

I followed the tutorial given in
http://gora.apache.org/current/tutorial.html

When reaching the section Compiling Avro schemas, the command 



 
$ bin/gora goracompiler

 

returns me:

-bash-4.1$ bin/gora goracompiler gora-tutorial/src/main/avro/pageview.json
gora-tutorial/src/main/java/
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/avro/Schema
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Class.java:2451)
        at java.lang.Class.getMethod0(Class.java:2694)
        at java.lang.Class.getMethod(Class.java:1622)
        at
sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494)
        at
sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486)
Caused by: java.lang.ClassNotFoundException: org.apache.avro.Schema
        at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:356)




How can I fix that, please?

Benjamin


Re: Compiling Avro Schemas

Posted by Lewis John Mcgibbney <le...@gmail.com>.
Hi Renato,

On Thursday, August 15, 2013, Renato Marroquín Mogrovejo <
renatoj.marroquin@gmail.com> wrote:
> Hey Lewis,
> Are you talking about optimizing Gora's transitive dependency?

Yes.  If your write a maven project right now the number of transitive
dependencies being pulled by Gora code is wild. IIRC we have no <scope> set
for any dependencies apart from hadoop test dep right now. It  is not a
blocking issue by any means but it is a waste of resources always pulling
loads of stuff we may not necessarily need.

Did we create a JIRA issue for that a while ago?

Yeah there is an issue for this.

https://issues.apache.org/jira/browse/GORA-161

Another one to add to the list of TODO's :)

>
> Renato M.
>
> 2013/8/15 Lewis John Mcgibbney <le...@gmail.com>
>>
>> yes the maven default target is install... the parent project object
manager ensures that your dependencies are copied from the local .m2 repos
to the relevant /lib directory.
>> If you are adding Gora code  + module to your project pom.xml you don't
need to declare individual Gora dependencies right now as By default we
will pull these.
>> In all honesty I am not keen on this... I  don't know what others
think... as it is expensive.
>> hth
>> Best
>> Lewis
>>
>> On Thursday, August 15, 2013, Sznajder ForMailingList <
bs4mailinglist@gmail.com> wrote:
>> > Thanks
>> >
>> > Compiling by
>> > 'mvn'
>> > and not by
>> > 'mvn clean compile'
>> >
>> > solved the problem
>> >
>> > Benjamin
>> >
>> >
>> > On Wed, Aug 14, 2013 at 2:44 PM, Emir Munoz <em...@deri.org>
wrote:
>> >>
>> >> Hi Benjamin,
>> >>
>> >>
>> >>
>> >> For me seems that you didn’t build the project using maven (i.e., mvn
clean install). Hence, you probably have an empty gora-tutorial/lib/ folder.
>> >>
>> >> If not, I would recommend you to add the bin/ folder of gora to the
PATH.
>> >>
>> >> -bash-4.1$ export PATH=$PATH:/home/gora-0.3/bin
>> >>
>> >>
>> >>
>> >> And then execute the compiler inside gora-tutorial folder.
>> >>
>> >> -bash-4.1$ gora goracompiler src/main/avro/pageview.json
src/main/java/
>> >>
>> >>
>> >>
>> >> Cheers,
>> >>
>> >> Emir
>> >>
>> >>
>> >>
>> >>
>> >>
>> >> From: Sznajder ForMailingList [mailto:bs4mailinglist@gmail.com]
>> >> Sent: 14 August 2013 11:08
>> >> To: user@gora.apache.org
>> >> Subject: Compiling Avro Schemas
>> >>
>> >>
>> >>
>> >> Hi
>> >>
>> >> I followed the tutorial given in
http://gora.apache.org/current/tutorial.html
>> >>
>> >> When reaching the section Compiling Avro schemas, the command
>> >>
>> >>
>> >>
>> >> $ bin/gora goracompiler
>> >>
>> >>
>> >>
>> >> returns me:
>> >>
>> >> -bash-4.1$ bin/gora goracompiler
gora-tutorial/src/main/avro/pageview.json gora-tutorial/src/main/java/
>> >> Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/avro/Schema
>> >>         at java.lang.Class.getDeclaredMethods0(Native Method)
>> >>         at java.lang.Class.privateGetDeclaredMethods(Class.java:2451)
>> >>         at java.lang.Class.getMethod0(Class.java:2694)
>> >>         at java.lang.Class.getMethod(Class.java:1622)
>> >>         at
sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494)
>> >>         at
sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486)
>> >> Caused by: java.lang.ClassNotFoundException: org.apache.avro.Schema
>> >>         at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
>> >>         at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
>> >>         at java.security.AccessController.doPrivileged(Native Method)
>> >>         at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
>> >>         at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
>> >>         at
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
>> >>         at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
>> >>
>> >>
>> >> How can I fix that, please?
>> >>
>> >> Benjamin
>> >
>>
>> --
>> Lewis
>>
>
>

-- 
*Lewis*

Re: Compiling Avro Schemas

Posted by Renato Marroquín Mogrovejo <re...@gmail.com>.
Hey Lewis,

Are you talking about optimizing Gora's transitive dependency? Did we
create a JIRA issue for that a while ago?


Renato M.

2013/8/15 Lewis John Mcgibbney <le...@gmail.com>

> yes the maven default target is install... the parent project object
> manager ensures that your dependencies are copied from the local .m2 repos
> to the relevant /lib directory.
> If you are adding Gora code  + module to your project pom.xml you don't
> need to declare individual Gora dependencies right now as By default we
> will pull these.
> In all honesty I am not keen on this... I  don't know what others think...
> as it is expensive.
> hth
> Best
> Lewis
>
>
> On Thursday, August 15, 2013, Sznajder ForMailingList <
> bs4mailinglist@gmail.com> wrote:
> > Thanks
> >
> > Compiling by
> > 'mvn'
> > and not by
> > 'mvn clean compile'
> >
> > solved the problem
> >
> > Benjamin
> >
> >
> > On Wed, Aug 14, 2013 at 2:44 PM, Emir Munoz <em...@deri.org> wrote:
> >>
> >> Hi Benjamin,
> >>
> >>
> >>
> >> For me seems that you didn’t build the project using maven (i.e., mvn
> clean install). Hence, you probably have an empty gora-tutorial/lib/ folder.
> >>
> >> If not, I would recommend you to add the bin/ folder of gora to the
> PATH.
> >>
> >> -bash-4.1$ export PATH=$PATH:/home/gora-0.3/bin
> >>
> >>
> >>
> >> And then execute the compiler inside gora-tutorial folder.
> >>
> >> -bash-4.1$ gora goracompiler src/main/avro/pageview.json src/main/java/
> >>
> >>
> >>
> >> Cheers,
> >>
> >> Emir
> >>
> >>
> >>
> >>
> >>
> >> From: Sznajder ForMailingList [mailto:bs4mailinglist@gmail.com]
> >> Sent: 14 August 2013 11:08
> >> To: user@gora.apache.org
> >> Subject: Compiling Avro Schemas
> >>
> >>
> >>
> >> Hi
> >>
> >> I followed the tutorial given in
> http://gora.apache.org/current/tutorial.html
> >>
> >> When reaching the section Compiling Avro schemas, the command
> >>
> >>
> >>
> >> $ bin/gora goracompiler
> >>
> >>
> >>
> >> returns me:
> >>
> >> -bash-4.1$ bin/gora goracompiler
> gora-tutorial/src/main/avro/pageview.json gora-tutorial/src/main/java/
> >> Exception in thread "main" java.lang.NoClassDefFoundError:
> org/apache/avro/Schema
> >>         at java.lang.Class.getDeclaredMethods0(Native Method)
> >>         at java.lang.Class.privateGetDeclaredMethods(Class.java:2451)
> >>         at java.lang.Class.getMethod0(Class.java:2694)
> >>         at java.lang.Class.getMethod(Class.java:1622)
> >>         at
> sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494)
> >>         at
> sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486)
> >> Caused by: java.lang.ClassNotFoundException: org.apache.avro.Schema
> >>         at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
> >>         at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
> >>         at java.security.AccessController.doPrivileged(Native Method)
> >>         at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
> >>         at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
> >>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
> >>         at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
> >>
> >>
> >> How can I fix that, please?
> >>
> >> Benjamin
> >
>
> --
> *Lewis*
>
>

Re: Compiling Avro Schemas

Posted by Lewis John Mcgibbney <le...@gmail.com>.
yes the maven default target is install... the parent project object
manager ensures that your dependencies are copied from the local .m2 repos
to the relevant /lib directory.
If you are adding Gora code  + module to your project pom.xml you don't
need to declare individual Gora dependencies right now as By default we
will pull these.
In all honesty I am not keen on this... I  don't know what others think...
as it is expensive.
hth
Best
Lewis

On Thursday, August 15, 2013, Sznajder ForMailingList <
bs4mailinglist@gmail.com> wrote:
> Thanks
>
> Compiling by
> 'mvn'
> and not by
> 'mvn clean compile'
>
> solved the problem
>
> Benjamin
>
>
> On Wed, Aug 14, 2013 at 2:44 PM, Emir Munoz <em...@deri.org> wrote:
>>
>> Hi Benjamin,
>>
>>
>>
>> For me seems that you didn’t build the project using maven (i.e., mvn
clean install). Hence, you probably have an empty gora-tutorial/lib/ folder.
>>
>> If not, I would recommend you to add the bin/ folder of gora to the PATH.
>>
>> -bash-4.1$ export PATH=$PATH:/home/gora-0.3/bin
>>
>>
>>
>> And then execute the compiler inside gora-tutorial folder.
>>
>> -bash-4.1$ gora goracompiler src/main/avro/pageview.json src/main/java/
>>
>>
>>
>> Cheers,
>>
>> Emir
>>
>>
>>
>>
>>
>> From: Sznajder ForMailingList [mailto:bs4mailinglist@gmail.com]
>> Sent: 14 August 2013 11:08
>> To: user@gora.apache.org
>> Subject: Compiling Avro Schemas
>>
>>
>>
>> Hi
>>
>> I followed the tutorial given in
http://gora.apache.org/current/tutorial.html
>>
>> When reaching the section Compiling Avro schemas, the command
>>
>>
>>
>> $ bin/gora goracompiler
>>
>>
>>
>> returns me:
>>
>> -bash-4.1$ bin/gora goracompiler
gora-tutorial/src/main/avro/pageview.json gora-tutorial/src/main/java/
>> Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/avro/Schema
>>         at java.lang.Class.getDeclaredMethods0(Native Method)
>>         at java.lang.Class.privateGetDeclaredMethods(Class.java:2451)
>>         at java.lang.Class.getMethod0(Class.java:2694)
>>         at java.lang.Class.getMethod(Class.java:1622)
>>         at
sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494)
>>         at
sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486)
>> Caused by: java.lang.ClassNotFoundException: org.apache.avro.Schema
>>         at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
>>         at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
>>         at java.security.AccessController.doPrivileged(Native Method)
>>         at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
>>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
>>
>>
>> How can I fix that, please?
>>
>> Benjamin
>

-- 
*Lewis*

Re: Compiling Avro Schemas

Posted by Sznajder ForMailingList <bs...@gmail.com>.
Thanks

Compiling by
'mvn'
and not by
'mvn clean compile'

solved the problem

Benjamin


On Wed, Aug 14, 2013 at 2:44 PM, Emir Munoz <em...@deri.org> wrote:

> Hi Benjamin,****
>
> ** **
>
> For me seems that you didn’t build the project using maven (i.e., mvn
> clean install). Hence, you probably have an empty gora-tutorial/lib/ folder.
> ****
>
> If not, I would recommend you to add the bin/ folder of gora to the PATH.*
> ***
>
> -bash-4.1$ export PATH=$PATH:/home/gora-0.3/bin ****
>
> ** **
>
> And then execute the compiler inside gora-tutorial folder.****
>
> -bash-4.1$ gora goracompiler src/main/avro/pageview.json src/main/java/***
> *
>
> ** **
>
> Cheers,****
>
> Emir****
>
> ** **
>
> ** **
>
> *From:* Sznajder ForMailingList [mailto:bs4mailinglist@gmail.com]
> *Sent:* 14 August 2013 11:08
> *To:* user@gora.apache.org
> *Subject:* Compiling Avro Schemas****
>
> ** **
>
> Hi
>
> I followed the tutorial given in
> http://gora.apache.org/current/tutorial.html****
>
> When reaching the section Compiling Avro schemas, the command
>
> ****
>
> ** **
>
> $ bin/gora goracompiler****
>
> ** **
>
> returns me:
>
> -bash-4.1$ bin/gora goracompiler gora-tutorial/src/main/avro/pageview.json
> gora-tutorial/src/main/java/
> Exception in thread "main" java.lang.NoClassDefFoundError:
> org/apache/avro/Schema
>         at java.lang.Class.getDeclaredMethods0(Native Method)
>         at java.lang.Class.privateGetDeclaredMethods(Class.java:2451)
>         at java.lang.Class.getMethod0(Class.java:2694)
>         at java.lang.Class.getMethod(Class.java:1622)
>         at
> sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494)
>         at
> sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486)
> Caused by: java.lang.ClassNotFoundException: org.apache.avro.Schema
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
>
>
> ****
>
> How can I fix that, please?
>
> Benjamin****
>