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Posted to dev@nutch.apache.org by "Roland (JIRA)" <ji...@apache.org> on 2013/02/08 22:25:14 UTC
[jira] [Commented] (NUTCH-1511) Metadata in MYSQL updated with
'garbage'
[ https://issues.apache.org/jira/browse/NUTCH-1511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13574839#comment-13574839 ]
Roland commented on NUTCH-1511:
-------------------------------
Hi,
this happens with cassandra, too. And the patch from NUTCH-1478 is not necessary to trigger this behavior.
Removing the scoring-opic plugin fixes this.
Enviroment:
nutch relase 2.1
java version "1.6.0_18"
OpenJDK Runtime Environment (IcedTea6 1.8.13) (6b18-1.8.13-0+squeeze2)
OpenJDK 64-Bit Server VM (build 14.0-b16, mixed mode)
# cat /etc/debian_version
6.0.6
--Roland
> Metadata in MYSQL updated with 'garbage'
> ----------------------------------------
>
> Key: NUTCH-1511
> URL: https://issues.apache.org/jira/browse/NUTCH-1511
> Project: Nutch
> Issue Type: Bug
> Components: fetcher, injector, storage
> Affects Versions: 2.1
> Environment: Ubuntu 12.04
> Reporter: J. Gobel
> Labels: metadata, mysql, nutch, scoring-opic
> Fix For: 2.2
>
>
> After applying patch for Metadata parser (NUTCH-1478) I notice that the metadata field just before the crawl ends is populated with the correct information. However when the crawl is completely finished the metadata field is populated with 'garbage' _csh_�����
> I notice in my SQL log file that the scoring plugin is overwriting the metadata field in a final data insertion with '_csh_ \0\0\0\0\'. When I remove 'scoring-opic' out of 'plugin.includes' property in the nutch-site.xml , the metadata-field is crisp and clear.
> MYSQL LOG FILE: (I did a crawl on http://nutch.apache.org. Below you will see a fragments of my MYSQL log file, only the moments when data is written to the METADATA field in the MYSQL table.
> First Insertion .. here I suppose scoring-opic writes its information, _csh_ ?€\0\0\0
> 58 Query INSERT INTO webpage (fetchInterval,fetchTime,id,markers,metadata,score )VALUES (2592000,1357122976493,'org.apache.nutch:http/',' dist 0 _injmrk_ y\0','
> _csh_ ?€\0\0\0',1.0) ON DUPLICATE KEY UPDATE fetchInterval=2592000,fetchTime=1357122976493,markers=' dist 0 _injmrk_ y\0',metadata='
> _csh_ ?€\0\0\0',score=1.0
> Second Insertion - inhere scraped metada is inserted into metadata.
> 81 Query INSERT INTO webpage (id,markers,metadata,outlinks,parseStatus,signature,text,title )VALUES ('org.apache.nutch:http/',
> The final insertion - please note that here the metadata field is overwritten with _CSH_\0\0\0\0
> 90 Query INSERT INTO webpage (fetchTime,id,inlinks,markers,metadata )VALUES (1359714995075,'org.apache.nutch:http/',' 0http://nutch.apache.org/
> Nutch\0',' dist 0 _injmrk_ y _updmrk_*1357122982-1745626508 __prsmrk__*1357122982-1745626508 _gnmrk_*1357122982-1745626508 _ftcmrk_*1357122982-1745626508\0','
> _csh_ \0\0\0\0\0') ON DUPLICATE KEY UPDATE fetchTime=1359714995075,inlinks=' 0http://nutch.apache.org/
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