My Nutch cycle completed successfully over the weekend. Deployment and searching also works fine. The only major/minor functional difference I noticed was that during fetching Hadoop stored the fetched data in memory until it reached a certain amount (100 megabytes or so) then wrote it all to disk (in the Hadoop temp directory) at once. During the write operation, which lasted no more then 8 seconds each time the Java thread count would lower down to between 6 and 10. This differed from previous versions where the data was streamed in real-time, but I don't see this costing anything in performance as the Java processes didn't lock despite the lowering of total threads.
----- Original Message ---- From: Sean Dean <[EMAIL PROTECTED]> To: [email protected] Sent: Wednesday, March 7, 2007 6:52:05 PM Subject: Re: 0.9 release Great, thanks a lot. I have started a complete Nutch cycle (generate, fetch, updatedb, invertlinks, index and dedup) on a 13 million document segment, and this should take no longer then a couple days. I will let you know of any problems, but hopefully it will work out with no errors at all. All this testing will be based off revision 515791 in trunk. ----- Original Message ---- From: Andrzej Bialecki <[EMAIL PROTECTED]> To: [email protected] Sent: Wednesday, March 7, 2007 5:04:21 PM Subject: Re: 0.9 release Sean Dean wrote: > As it stands now with whats in trunk under 0.9-dev, one of the biggest > problems is the version of Hadoop we have included. It fails on anything > above 200k URLs, and should be considered a "blocker" issue. > > Its my understanding that Andrzej has a newer Hadoop JAR with some custom > patches applied, but hasn't had the time yet to commit them back to Nutch. > When he does get the chance, some testing will need to be initiated and I can > be a small help there. > > Not to make it sound like the end of the world, but since almost everything > in Nutch revolves around Hadoop we should get this issue corrected before we > make other "big" plans for fixes and changes. > To be precise, the version is 0.11.2 release and it's been committed just now (rev. 515791). Your help in testing would be most welcome ... -- Best regards, Andrzej Bialecki <>< ___. ___ ___ ___ _ _ __________________________________ [__ || __|__/|__||\/| Information Retrieval, Semantic Web ___|||__|| \| || | Embedded Unix, System Integration http://www.sigram.com Contact: info at sigram dot com
