Hello list, in my previous posts i reported about not being able to run nutch on a hadoop cluster running cloudera's cdh 0.20.2+737. (http://search.lucidimagination.com/search/document/b66fa844b87b2654/failure_running_on_hadoop#52c43d8c4137ea8c and http://search.lucidimagination.com/search/document/a2b151e6a7041c13/nutch_1_x_doesn_t_run_on_cloudera_s_cdh3#2991508ce0ae5d52)
Basically the problem was hadoop not finding some nutch plugin classes like URLNormalizer etc. I reported back to cloudera directly (https://groups.google.com/a/cloudera.org/group/cdh-user/browse_thread/thread/9147acfc4d18cfaf#) and it looks like the problem is connected to MAPREDUCE-967 (now part of hadoop 0.21 and backported by cloudera to their cdh 0.20.2). What the patch does is basically modify the way MapReduce unpacks the job's jar. The old way was to unpack the whole of it, now only classes/ and lib/ are unpacked. This way nutch is missing the plugins/ directory. The nutch job format should be changed accordingly. Todd Lipcon suggested a workaround until that moment: setting 'mapreduce.job.jar.unpack.pattern' configuration to "(?:classes/|lib/|plugins/).*" Should I file a JIRA? -- Claudio Martella Digital Technologies Unit Research & Development - Analyst TIS innovation park Via Siemens 19 | Siemensstr. 19 39100 Bolzano | 39100 Bozen Tel. +39 0471 068 123 Fax +39 0471 068 129 [email protected] http://www.tis.bz.it Short information regarding use of personal data. According to Section 13 of Italian Legislative Decree no. 196 of 30 June 2003, we inform you that we process your personal data in order to fulfil contractual and fiscal obligations and also to send you information regarding our services and events. Your personal data are processed with and without electronic means and by respecting data subjects' rights, fundamental freedoms and dignity, particularly with regard to confidentiality, personal identity and the right to personal data protection. At any time and without formalities you can write an e-mail to [email protected] in order to object the processing of your personal data for the purpose of sending advertising materials and also to exercise the right to access personal data and other rights referred to in Section 7 of Decree 196/2003. The data controller is TIS Techno Innovation Alto Adige, Siemens Street n. 19, Bolzano. You can find the complete information on the web site www.tis.bz.it.
