Mike,
After running
./bin/nutch inject blah blah -- in fact WebDBInjector.java
both ./db/webdb and ./db/webdb.old are created.
The existance of ./db/webdb.old will further fail other commands
with complaints like
Exception in thread "main" java.io.IOException: Impossible condition: directories
./db/webdb.old and ./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.FetchListTool.emitFetchList(FetchListTool.java:531)
at net.nutch.tools.FetchListTool.emitFetchList(FetchListTool.java:304)
at net.nutch.tools.FetchListTool.main(FetchListTool.java:662)
The same symptom also appears in the failed test run of
./src/test/net/nutch/db/DBTester.java:
Testcase: testWebDB took 3.583 sec
Caused an ERROR
Impossible condition: directories ./build/test/data/testDb/webdb_test/webdb.old
and ./build/test/data/testDb/webdb_test/webdb cannot exist simultaneously
java.io.IOException: Impossible condition: directories ./build/test/data/testDb/
webdb_test/webdb.old and ./build/test/data/testDb/webdb_test/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.db.DBTester.makeEdits(DBTester.java:228)
at net.nutch.db.DBTester.runTest(DBTester.java:123)
at net.nutch.db.TestWebDB.testWebDB(TestWebDB.java:36)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
Shouldn't webdb.old be removed? Looks like a delete() is needed for nfs
at some place.
Could you please check?
Thanks,
John
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