log4j:WARN No appenders could be found for logger / Script termination

[Randy]

Hi,

I try to build a database on an Ubuntu system using the data machine.

Unfortunately, the script throws the following error during the execution:

log4j:WARN No appenders could be found for logger (org.springframework.core.env.StandardEnvironment).

log4j:WARN Please initialize the log4j system properly.

log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

But the "real" problem is not only the error message, but the terminated script  :-(

An text file was created, an an empty "output" folder.....

The text file contains:

"Date/Time","Total Memory","Free Memory","Message"

"2012.11.28 18:53:23","378535936","366679296","Not all necessary source files could be found in ./"

sudo java -Xmx5g -jar datamachine.jar english Contents Disambiguation_pages ./

The folder contains:

datamachine.jar (de.tudarmstadt.ukp.wikipedia.datamachine-0.9.2-jar-with-dependencies)

enwiki-latest-category.sql.gz

enwiki-latest-pagelinks.sql.gz

enwiki-latest-pages-articles.xml.bz2

Could anyone help please?

Thanks in advance :-)

[Oliver Ferschke]

Hi,

you can ignore the log4j warnings.

We really have to get rid of them soon.They seem to confuse JWPL users.

They just indicate that you haven't configured log4j and consequently won't get debug output.

The other error message indicates that you are missing one of the mandatory files.

As the JWPL website states, you need the xml dump, the categorylinks.sql and the pagelinks.sql.

They should all be in the source directory.

Regards,

Oliver

--
-------------------------------------------------------------------
Oliver Ferschke, M.A.
Doctoral Researcher
Ubiquitous Knowledge Processing Lab (UKP-TU DA)
FB 20 Computer Science Department
Technische Universität Darmstadt
Hochschulstr. 10, D-64289 Darmstadt, Germany
phone [+49] (0)6151 16-6227, fax -5455, room S2/02/B111
fers...@cs.tu-darmstadt.de
www.ukp.tu-darmstadt.de
Web Research at TU Darmstadt (WeRC) www.werc.tu-darmstadt.de
-------------------------------------------------------------------

---

Von: jw...@googlegroups.com [jw...@googlegroups.com]" im Auftrag von "Randy [rwe...@uni-freiburg.de]
Gesendet: Mittwoch, 28. November 2012 18:56
An: jw...@googlegroups.com
Betreff: [jwpl-users] log4j:WARN No appenders could be found for logger / Script termination

[Oliver Ferschke]

I just saw that you have all the necessary files. Sorry, I overlooked that first.

Try using an absolute path to the source folder instead of a relative one. 

Also, check the integrity of the source files. If any of them are corrupted, they will likely cause problems at that point.

Regards,

Oliver

--
-------------------------------------------------------------------
Oliver Ferschke, M.A.
Doctoral Researcher
Ubiquitous Knowledge Processing Lab (UKP-TU DA)
FB 20 Computer Science Department
Technische Universität Darmstadt
Hochschulstr. 10, D-64289 Darmstadt, Germany
phone [+49] (0)6151 16-6227, fax -5455, room S2/02/B111
fers...@cs.tu-darmstadt.de
www.ukp.tu-darmstadt.de
Web Research at TU Darmstadt (WeRC) www.werc.tu-darmstadt.de
-------------------------------------------------------------------

Von: jw...@googlegroups.com [jw...@googlegroups.com]" im Auftrag von "Randy [rwe...@uni-freiburg.de]
Gesendet: Mittwoch, 28. November 2012 18:56
An: jw...@googlegroups.com

Betreff: [jwpl-users] log4j:WARN No appenders could be found for logger / Script termination

[Randy]

Just tried it again (also with the same set of files in German, with gz-compression and without) , but the "datamachine" seems still having some problems in finding some files…

root@Ubuntu-1204-precise-64-minimal ~/sandbox # pwd

/root/sandbox

root@Ubuntu-1204-precise-64-minimal ~/sandbox # ls -la

total 68218320

drwxr-xr-x  3 root root        4096 Nov 29 14:16 .

drwx------ 24 root root        4096 Nov 27 16:54 ..

-rwxrwxrwx  1 root root    10518523 Nov 27 15:10 datamachine.jar

-rwxrwxrwx  1 root root     3641124 Nov 17 08:41 dewiki-latest-category.sql.gz

-rwxrwxrwx  1 root root   751145663 Nov 17 08:28 dewiki-latest-pagelinks.sql.gz

-rwxrwxrwx  1 root root  3007061162 Nov 18 04:54 dewiki-latest-pages-articles.xml.bz2

-rwxrwxrwx  1 root root    80204107 Nov  1 18:03 enwiki-latest-category.sql

-rwxrwxrwx  1 root root 24254057137 Nov  1 15:01 enwiki-latest-pagelinks.sql

-rwxrwxrwx  1 root root 41748886641 Nov  2 12:02 enwiki-latest-pages-articles.xml

drwxrwxrwx  2 root root        4096 Nov 28 18:53 output

root@Ubuntu-1204-precise-64-minimal ~/sandbox # sudo java -Xmx5g -jar datamachine.jar english Contents Disambiguation_pages /root/sandbox/

Command: sudo java -Xmx5g -jar datamachine.jar english Contents Disambiguation_pages /root/sandbox/

Result (in a textfile):

"Date/Time","Total Memory","Free Memory","Message"

"2012.11.29 14:22:54","378535936","366679200","Not all necessary source files could be found in /root/sandbox/"

Thanks :-)

[Torsten Zesch]

You need the source file called PREFIX_categorylinks instead of PREFIX_category

-Torsten

2012/11/29 Randy <rwe...@uni-freiburg.de>

[Randy]

:-))

Thanks a lot, I overlooked this :-((

[Guilherme Vieira C.]

Hi, I'm getting the same warning.

About:

We really have to get rid of them soon.They seem to confuse JWPL users.

They just indicate that you haven't configured log4j and consequently won't get debug output.

I still get this warning today (2014). Maybe I did something wrong, what can I do to hide this messages?

[Torsten Zesch]

We just didn't found time to remove (the uncritical) warning.
Everything is fine.

If the warning bothers you enough that you want to invest time in
that, you need to play around with the logging properties.

-Torsten

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[Guilherme Vieira C.]

I solved the problem just creating a file named "log4j.properties" with the content "log4j.rootLogger=OFF".

Thanks for your response and keep working on the project!

[Shiri Dori-Hacohen]

Guilherme, thanks for sharing this simple fix to the (noncritical) warning. Where did you place this file?

Thanks--Shiri

[Guilherme Vieira C.]

I apologize for being late. If you use maven you can put this file under the directory "/src/main/resources/". There are other places/methods that you can prefer, see here: http://stackoverflow.com/q/5081316 .

[Shiri Dori-Hacohen]

Thanks Guilherme! Simple & sweet, and it works. Appreciate it.

[Oliver Ferschke]

Hi all,

I just moved log4j properties to the src/main/resources folder in the current snapshot.

Along with some fixes I will probably deploy a new release some time soon.

This issue should be solved then.

-Oliver