[jira] [Commented] (NUTCH-1457) Nutch2 Refactor the update process so that fetched items are only processed once
[ https://issues.apache.org/jira/browse/NUTCH-1457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13723956#comment-13723956 ] Ferdy Galema commented on NUTCH-1457: - Hi, Thanks for submitting the patch. It seems that patch Nutch-2.2.1 can be applied to the current 2.x branch. (With the command patch -p0 NUTCH-1457...). The changes look all valid. However I haven't tested it by running testcrawls. I try to get it up and running in a while. Or otherwise if anyone else is able to do some testing and/or committing feel free to do so. Nutch2 Refactor the update process so that fetched items are only processed once Key: NUTCH-1457 URL: https://issues.apache.org/jira/browse/NUTCH-1457 Project: Nutch Issue Type: Improvement Reporter: Ferdy Galema Fix For: 2.4 Attachments: CrawlStatus.java, DbUpdateReducer.java, GeneratorMapper.java, GeneratorReducer.java, NUTCH-1457(Nutch-2.1).patch, NUTCH-1457(Nutch-2.1)-src.zip, NUTCH-1457(Nutch-2.2.1).patch, NUTCH-1457(Nutch-2.2.1)-src.zip -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (NUTCH-1457) Nutch2 Refactor the update process so that fetched items are only processed once
[ https://issues.apache.org/jira/browse/NUTCH-1457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13718439#comment-13718439 ] Riyaz Shaik commented on NUTCH-1457: Hi Ferdy/Lewis, It seems trunk has the Nutch-1.4 version code as per the SVN check-in logs and mail archives. http://www.mail-archive.com/dev@nutch.apache.org/msg04348.html I had created patches for the branches : *Nutch-2.1* and *Nutch-2.2.1* Attached the modified source code files as a Zip and patches. (on) Patch contains following fixes other than NUTCH-1457: (+) org.apache.nutch.crawl.AbstractFetchSchedule * Fix for resetting fetchTime to currentTime, if the *??fetchTime-currTime maxInterval??*. Since *“shouldFetch”* method returning false even after setting the new fetchTime to page. So, that new fetchTime changes will not be available to GeneratorReducer to persist the changes in HBase. (+) org.apache.nutch.parse.ParseUtil * Moved the page signature calculation code(a line of code). Existing code calculating the page signature without parsed plain text(Ex: from HTMLParser), that causes signature calculation on entire page content even after enabling the “org.apache.nutch.crawl.TextProfileSignature”. Can you please validate the changes?. Thanks Riyaz Nutch2 Refactor the update process so that fetched items are only processed once Key: NUTCH-1457 URL: https://issues.apache.org/jira/browse/NUTCH-1457 Project: Nutch Issue Type: Improvement Reporter: Ferdy Galema Fix For: 2.4 Attachments: CrawlStatus.java, DbUpdateReducer.java, GeneratorMapper.java, GeneratorReducer.java -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (NUTCH-1457) Nutch2 Refactor the update process so that fetched items are only processed once
[ https://issues.apache.org/jira/browse/NUTCH-1457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13700965#comment-13700965 ] Riyaz Shaik commented on NUTCH-1457: Hi, Is it possible to have a simple logic like (fetchTime currentTime) don't set/modify the FetchSchedule in DbUpdateReducer? Thanks Riyaz Nutch2 Refactor the update process so that fetched items are only processed once Key: NUTCH-1457 URL: https://issues.apache.org/jira/browse/NUTCH-1457 Project: Nutch Issue Type: Improvement Reporter: Ferdy Galema Fix For: 2.4 -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (NUTCH-1457) Nutch2 Refactor the update process so that fetched items are only processed once
[ https://issues.apache.org/jira/browse/NUTCH-1457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13493413#comment-13493413 ] Alexander Kingson commented on NUTCH-1457: -- Hi, Could you please give me more details on this. It is my understanding that in Nutch-1.x only generated in each step urls are updated by updatedb and to implement the same processing in Nutch-2.x is to add batchId to updatedb command. Thanks. Alexander. Nutch2 Refactor the update process so that fetched items are only processed once Key: NUTCH-1457 URL: https://issues.apache.org/jira/browse/NUTCH-1457 Project: Nutch Issue Type: Improvement Reporter: Ferdy Galema -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (NUTCH-1457) Nutch2 Refactor the update process so that fetched items are only processed once
[ https://issues.apache.org/jira/browse/NUTCH-1457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13493565#comment-13493565 ] Ferdy Galema commented on NUTCH-1457: - There is a limited description of the Nutch2 DbUpdater here: http://wiki.apache.org/nutch/Nutch2Crawling#DbUpdate Basically all outlinks of the table are needed (they are outputted in the Mapper), so that they will be available as inlinks in the Reducer. They are needed to correctly update the Score for each row. This may or may not be important in some cases, but for a correct calculation of Score all rows+outlinks are needed. My suggestion for this issue is to move some of the processing of the DbUpdater job to the Fetcher. Namely the updating of the fetchstatus and fetchtime. Then it is possible to run the DpUpdater job many times without pushing fetchtime far into the future. Slighly related, there should be an extra field to distinct between when was this item fetched and when should it be fetched. Now both this information is stored in the single field fetchtime. Nutch2 Refactor the update process so that fetched items are only processed once Key: NUTCH-1457 URL: https://issues.apache.org/jira/browse/NUTCH-1457 Project: Nutch Issue Type: Improvement Reporter: Ferdy Galema -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (NUTCH-1457) Nutch2 Refactor the update process so that fetched items are only processed once
[ https://issues.apache.org/jira/browse/NUTCH-1457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13491289#comment-13491289 ] Ferdy Galema commented on NUTCH-1457: - Hi, Not really because with a partial update set, only a partial inlink set with be created in the update-reducer. Nutch2 Refactor the update process so that fetched items are only processed once Key: NUTCH-1457 URL: https://issues.apache.org/jira/browse/NUTCH-1457 Project: Nutch Issue Type: Improvement Reporter: Ferdy Galema -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (NUTCH-1457) Nutch2 Refactor the update process so that fetched items are only processed once
[ https://issues.apache.org/jira/browse/NUTCH-1457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13491124#comment-13491124 ] Alexander Kingson commented on NUTCH-1457: -- Can we use batchId in update command and update only those entries that has the given batchId as generate_mark value? Nutch2 Refactor the update process so that fetched items are only processed once Key: NUTCH-1457 URL: https://issues.apache.org/jira/browse/NUTCH-1457 Project: Nutch Issue Type: Improvement Reporter: Ferdy Galema -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (NUTCH-1457) Nutch2 Refactor the update process so that fetched items are only processed once
[ https://issues.apache.org/jira/browse/NUTCH-1457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13471480#comment-13471480 ] Ferdy Galema commented on NUTCH-1457: - Included effort is resolving the conflict of time the document was fetched and the time the document ought to be fetched. Nutch2 Refactor the update process so that fetched items are only processed once Key: NUTCH-1457 URL: https://issues.apache.org/jira/browse/NUTCH-1457 Project: Nutch Issue Type: Improvement Reporter: Ferdy Galema -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
