Hello I'm sometimes getting the following error when running nutch:
Exception in thread "main" java.io.IOException: Impossible condition:
directories .../NutchJavaCVS/extDir/db/webdb.old and
.../NutchJavaCVS/extDir/db/webdb cannot exist simultaneously
at net.nutch.db.WebDBWriter.<init>(WebDBWriter.java:1470)
at net.nutch.db.WebDBWriter.<init>(WebDBWriter.java:1443)
at net.nutch.tools.UpdateDatabaseTool.main(UpdateDatabaseTool.java:339)
at net.nutch.tools.CrawlTool.main(CrawlTool.java:127)
I say sometimes because I have one root_url_file that appears to work
and another that doesn't. The only apparent difference between the
files in size (the one that fails has about 60 urls in it, the one
that works has 15). Is there a limit to the number of urls entered
into this file?
What else would be causing this?
Note that I'm running the cvs version. It seems that this should be
failing everytime. In the private constructor for WebDBWriter.java,
oldDbFile and dbFile are both created everytime, so should they both
exist and thus this IOException get thrown everytime? I guess my
understanding of the java File object is messed up somehow. ;)
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