Hi Andrzej, Thanks for the tool. It allowed me to recover a failed fetch due to Disk space.
Regards, Vipin On Mon, Mar 12, 2007 at 7:35 PM, Mathijs Homminga < [EMAIL PROTECTED]> wrote: > Hi all, > > We managed to recover most of our data using Andrzej's LocalFetchRecover > tool. > > For more info see: > http://issues.apache.org/jira/browse/NUTCH-451 > > Mathijs > > > > Andrzej Bialecki wrote: > >> Mathijs Homminga wrote: >> >>> Hi Andrzej, >>> >>> Thanks for the tool! >>> >>> I found one 'map_xxxxxx' directory which matches the date my segment was >>> created. >>> It contains a 'part-0.out' file with a timestamp that matches the time of >>> the last entries in my log file (just before the process stopped). >>> >>> I followed the preparation steps and ran the tool. However, I got the >>> following error: >>> >> >> The SequenceFile has the following structure (approximately): first, three >> letter magic 'SEQ', and then either the fully qualified class names for >> key/value, or abbreviated classnames obtained from the mapping in >> WritableName. Please check what is this class name in part-0.out file - >> apparently Hadoop can't find the right mapping (you can send me the first >> bytes of this file off the list - use 'dd if=part-0.out of=data.out bs=512 >> count=1'). >> >> By looking at the Hadoop sources I noticed that the FetcherOutput class >>> mentioned in this error message is determined by the SequenceFile class and >>> obtained from the sequence file itself. >>> >> >> The class itself is not obtained from the file - it's loaded from the >> classpath. The thing that is missing here is the right name of the class as >> determined by the symbolic name inside the SequenceFile. >> >> >
