Hi,
I ran nutch using this command:
$ ./nutch crawl urlfq2.txt -dir fqjoke2 -depth 20 -threads 10 >& fq2.log
during the crawling ,the following exception occured:
060708 182413 status: segment 20060708181314, 471 pages, 69 errors,
5655871 bytes, 657469 ms
060708 182413 status: 0.7163836 pages/s, 67.20696 kb/s, 12008.219 bytes/page
060708 182414 Updating D:\cygwin\home\nutch-0.7.2\bin\fqjoke2\db
Exception in thread "main" java.io.IOException: Impossible condition:
directories D:\cygwin\home\nutch-0.7.2\bin\fqjoke2\db\webdb.old and
D:\cygwin\home\nutch-0.7.2\bin\fqjoke2\db\webdb cannot exist simultaneously
at org.apache.nutch.db.WebDBWriter.<init>(WebDBWriter.java:1484)
at org.apache.nutch.db.WebDBWriter.<init>(WebDBWriter.java:1457)
at
org.apache.nutch.tools.UpdateDatabaseTool.main(UpdateDatabaseTool.java:360)
at org.apache.nutch.tools.CrawlTool.main(CrawlTool.java:141)
why this happened ? any solution available? many thanks!
