I believe javac is only included in the full JDK (not JRE). Do
'which javac' or 'locate javac' or just do a fine in your $JAVA_HOME
dir and look for javac.
Thanks for the input. Yes, the issue was actually a JDK vs. JRE problem.
What had confused me was that even after changing JAVA_HOME to the
1.4 JDK, I still got the same server result (internal server error)
from clicking on the http://master:50030/jobdetails.jsp.
But that was now caused by a different problem - if you don't pass in
a valid jobid param to the jobdetails.jsp, it dies with a null
pointer exception. This guy is only designed to be used via links
from the jobtracker.jsp page.
And thanks to Andrzej for his November post that noted this.
-- Ken
----- Original Message ----
From: Ken Krugler <[EMAIL PROTECTED]>
To: [email protected]
Sent: Sat 14 Jan 2006 05:50:00 PM EST
Subject: [Nutch-general] Error running MapReduce - Jetty server & .jsp files
Hi all,
After a bit of thrashing with RSA keys and having to move
/Nutch/src/webapps up to /Nutch, I've gotten the 1/12/2006 build of
Nutch running on three servers.
The "master" is running as a NameNode & JobTracker, and two slaves
are running as DataNodes and TaskTrackers.
I'm running into a problem with using the JobTracker web interface.
I can see the two .jsp files (jobdetails.jsp and jobtracker.jsp) when
I point my browser at http://master:50030, but when I actually try to
run one of the JSPs (e.g. http://master:50030/jobdetails.jsp) I get a
500 error.
The nutch-crawler-jobtracker-main1.log file on the master tells me
that Jetty wasn't able to compile the .jsp because of a classpath
problem. The relevant portion of the log says:
060114 110818 SEVERE Javac exception
Unable to find a javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK
[snip]
I've verified that JAVA_HOME is set to /usr/java/jre1.5.0_05
Is the problem because this isn't a full JDK?
What's confusing to me is that the classpath dumped by Jetty in the
log looks like:
classpath=/tmp/Jetty__50030___24406:/usr/java/jre1.5.0_05/lib/ext/localedata.jar:/usr/java/jre1.5.0_05/lib/ext/sunpkcs11.jar
[snip]
So obviously somebody is using JAVA_HOME to build the path to these
.jar files.
But JAVA_HOME (the top-level path, ie /usr/java/jre1.5.0_05) isn't a
member of this classpath.
Any help would be appreciated!
Thanks,
-- Ken
--
Ken Krugler
-------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc. Do you grep through log files
for problems? Stop! Download the new AJAX search engine that makes
searching your log files as easy as surfing the web. DOWNLOAD SPLUNK!
http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click
_______________________________________________
Nutch-general mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/nutch-general
