Hi,
The place where nutch looks for the segments is configurable. See the
nutch-default.xml config file, where you can set these parameters. The
searcher.dir parameter is the one that you need to set for this. I guess the
recommended method is to set these parameters in nutch-site.xml, which will
override the settings in the default file.
HTH,
Praveen.
Vikas Gupta <[EMAIL PROTECTED]> said:
> Hi Jack,
>
> I had the same problem while running the tutorial. The trick is to launch
> your catalina.sh start command from the same directory that contains your
> db and segments file. I also used a absolute path to start the
> catalina.sh script.
>
> BTW, the only other environment variable I have set is JAVA_HOME I am sure
> there are other solutions as well.
>
> Vikas
>
> ----------------------------------------------------------
> Jack Pack wrote:
>
> Running under XP Pro, Tomcat 4.1, root.war (nutch-0.5) with the segments
> directory sitting at TOMCAT_HOME. I get a NullPointerException when
> initiating a search.
>
> The tomcat webpage trace:
> java.lang.NullPointerException
> at net.nutch.searcher.NutchBean.init(NutchBean.java:82)
>
> Here is the tomcat console trace:
> 041104 200332 12 creating new bean
> 041104 200332 12 opening segment indexes in C:Tomcat4.1segments
>
> That trace says that NutchBean was looking in the right place, and is
> generated by the following code snippet from NutchBean:
>
> LOG.info("opening segment indexes in "
> segmentsDir.getCanonicalPath());
>
> Vector vDirs=new Vector();
> File [] directories = segmentsDir.listFiles();
> for(int i = 0; i < segmentsDir.listFiles().length; i++) {
>
> And the error is happening inside the for-loop.
>
> BTW: if you have File [] directories already filled by
> segmentsDir.listFiles();
>
> then, why do you keep running that same code segmentsDir.listFiles()with
> .length inside the for-loop when you could have used code like
> //TODO opportunity to test for null here
> int len = directories.length;
> for(int i=0;i<len;i++)
>
> That same code is in the latest cvs code as well. What am I missing here?
>
> Meanwhile, the console trace says it was looking inside the proper
> directory, and, in there, there are three directories:
> 20041104185455
> 20041104185834
> 20041104190247
>
> Any thoughts on the NullPointerException?
>
> TIA
> Jack
>
>
>
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