请帮助我，我正在尝试使用 NUTCH 抓取网站，但它给了我错误“ java.io.IOException: Job failed!”
我正在运行这个命令“ bin/nutch solrindex http://<host name>:8080/solr/ crawl/crawldb -linkdb crawl/linkdb crawl/segments/*”并且我正在使用 NUTCH 1.5.1 和 SOLR 3.6.1 以及 jdk java-7-openjdk-i386 和 ubuntu 12.04。
在 NUTCH/log 文件夹中存在的 hadoop.log 中显示以下内容：
2012-09-13 12:56:10,524 INFO solr.SolrIndexer - SolrIndexer: starting at 2012-09-13 12:56:10
2012-09-13 12:56:10,604 INFO indexer.IndexerMapReduce - IndexerMapReduce: crawldb: crawl/crawldb
2012-09-13 12:56:10,604 INFO indexer.IndexerMapReduce - IndexerMapReduce: linkdb: crawl/linkdb
2012-09-13 12:56:10,604 INFO indexer.IndexerMapReduce - IndexerMapReduces: adding segment: crawl/segments/20120910160403
2012-09-13 12:56:10,711 INFO indexer.IndexerMapReduce - IndexerMapReduces: adding segment: crawl/segments/20120910160448
2012-09-13 12:56:10,715 INFO indexer.IndexerMapReduce - IndexerMapReduces: adding segment: crawl/segments/20120910160631
2012-09-13 12:56:10,760 WARN util.NativeCodeLoader - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
2012-09-13 12:56:11,212 INFO plugin.PluginRepository - Plugins: looking in: /home/zapbuild/Nutch/plugins
2012-09-13 12:56:11,310 INFO plugin.PluginRepository - Plugin Auto-activation mode: [true]
2012-09-13 12:56:11,310 INFO plugin.PluginRepository - Registered Plugins:
2012-09-13 12:56:11,310 INFO plugin.PluginRepository - the nutch core extension points (nutch-extensionpoints)
2012-09-13 12:56:11,310 INFO plugin.PluginRepository - Regex URL Normalizer (urlnormalizer-regex)
2012-09-13 12:56:11,310 INFO plugin.PluginRepository - CyberNeko HTML Parser (lib-nekohtml)
2012-09-13 12:56:11,310 INFO plugin.PluginRepository - OPIC Scoring Plug-in (scoring-opic)
2012-09-13 12:56:11,310 INFO plugin.PluginRepository - Basic URL Normalizer (urlnormalizer-basic)
2012-09-13 12:56:11,310 INFO plugin.PluginRepository - Tika Parser Plug-in (parse-tika)
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - Basic Indexing Filter (index-basic)
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - Html Parse Plug-in (parse-html)
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - Anchor Indexing Filter (index-anchor)
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - HTTP Framework (lib-http)
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - Regex URL Filter (urlfilter-regex)
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - Regex URL Filter Framework (lib-regex-filter)
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - Pass-through URL Normalizer (urlnormalizer-pass)
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - Http Protocol Plug-in (protocol-http)
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - Registered Extension-Points:
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - Nutch URL Normalizer (org.apache.nutch.net.URLNormalizer)
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - Nutch Protocol (org.apache.nutch.protocol.Protocol)
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - Nutch Segment Merge Filter (org.apache.nutch.segment.SegmentMergeFilter)
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - Nutch URL Filter (org.apache.nutch.net.URLFilter)
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - Nutch Indexing Filter (org.apache.nutch.indexer.IndexingFilter)
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - HTML Parse Filter (org.apache.nutch.parse.HtmlParseFilter)
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - Nutch Content Parser (org.apache.nutch.parse.Parser)
2012-09-13 12:56:11,311 INFO plugin.PluginRepository - Nutch Scoring (org.apache.nutch.scoring.ScoringFilter)
2012-09-13 12:56:11,313 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.basic.BasicIndexingFilter
2012-09-13 12:56:11,314 INFO anchor.AnchorIndexingFilter - Anchor deduplication is: off
2012-09-13 12:56:11,314 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.anchor.AnchorIndexingFilter
2012-09-13 12:56:14,104 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.basic.BasicIndexingFilter
2012-09-13 12:56:14,104 INFO anchor.AnchorIndexingFilter - Anchor deduplication is: off
2012-09-13 12:56:14,104 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.anchor.AnchorIndexingFilter
2012-09-13 12:56:17,135 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.basic.BasicIndexingFilter
2012-09-13 12:56:17,136 INFO anchor.AnchorIndexingFilter - Anchor deduplication is: off
2012-09-13 12:56:17,136 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.anchor.AnchorIndexingFilter
2012-09-13 12:56:20,204 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.basic.BasicIndexingFilter
2012-09-13 12:56:20,205 INFO anchor.AnchorIndexingFilter - Anchor deduplication is: off
2012-09-13 12:56:20,205 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.anchor.AnchorIndexingFilter
2012-09-13 12:56:23,297 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.basic.BasicIndexingFilter
2012-09-13 12:56:23,297 INFO anchor.AnchorIndexingFilter - Anchor deduplication is: off
2012-09-13 12:56:23,297 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.anchor.AnchorIndexingFilter
2012-09-13 12:56:26,232 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.basic.BasicIndexingFilter
2012-09-13 12:56:26,232 INFO anchor.AnchorIndexingFilter - Anchor deduplication is: off
2012-09-13 12:56:26,233 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.anchor.AnchorIndexingFilter
2012-09-13 12:56:29,252 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.basic.BasicIndexingFilter
2012-09-13 12:56:29,252 INFO anchor.AnchorIndexingFilter - Anchor deduplication is: off
2012-09-13 12:56:29,252 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.anchor.AnchorIndexingFilter
2012-09-13 12:56:32,284 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.basic.BasicIndexingFilter
2012-09-13 12:56:32,284 INFO anchor.AnchorIndexingFilter - Anchor deduplication is: off
2012-09-13 12:56:32,284 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.anchor.AnchorIndexingFilter
2012-09-13 12:56:35,258 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.basic.BasicIndexingFilter
2012-09-13 12:56:35,258 INFO anchor.AnchorIndexingFilter - Anchor deduplication is: off
2012-09-13 12:56:35,258 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.anchor.AnchorIndexingFilter
2012-09-13 12:56:38,283 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.basic.BasicIndexingFilter
2012-09-13 12:56:38,284 INFO anchor.AnchorIndexingFilter - Anchor deduplication is: off
2012-09-13 12:56:38,284 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.anchor.AnchorIndexingFilter
2012-09-13 12:56:41,278 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.basic.BasicIndexingFilter
2012-09-13 12:56:41,278 INFO anchor.AnchorIndexingFilter - Anchor deduplication is: off
2012-09-13 12:56:41,278 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.anchor.AnchorIndexingFilter
2012-09-13 12:56:44,334 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.basic.BasicIndexingFilter
2012-09-13 12:56:44,334 INFO anchor.AnchorIndexingFilter - Anchor deduplication is: off
2012-09-13 12:56:44,334 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.anchor.AnchorIndexingFilter
2012-09-13 12:56:47,338 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.basic.BasicIndexingFilter
2012-09-13 12:56:47,338 INFO anchor.AnchorIndexingFilter - Anchor deduplication is: off
2012-09-13 12:56:47,338 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.anchor.AnchorIndexingFilter
2012-09-13 12:56:50,360 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.basic.BasicIndexingFilter
2012-09-13 12:56:50,360 INFO anchor.AnchorIndexingFilter - Anchor deduplication is: off
2012-09-13 12:56:50,360 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.anchor.AnchorIndexingFilter
2012-09-13 12:56:53,309 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.basic.BasicIndexingFilter
2012-09-13 12:56:53,310 INFO anchor.AnchorIndexingFilter - Anchor deduplication is: off
2012-09-13 12:56:53,310 INFO indexer.IndexingFilters - Adding org.apache.nutch.indexer.anchor.AnchorIndexingFilter
2012-09-13 12:56:53,357 INFO solr.SolrMappingReader - source: content dest: content
2012-09-13 12:56:53,357 INFO solr.SolrMappingReader - source: title dest: title
2012-09-13 12:56:53,357 INFO solr.SolrMappingReader - source: host dest: host
2012-09-13 12:56:53,357 INFO solr.SolrMappingReader - source: segment dest: segment
2012-09-13 12:56:53,357 INFO solr.SolrMappingReader - source: boost dest: boost
2012-09-13 12:56:53,357 INFO solr.SolrMappingReader - source: digest dest: digest
2012-09-13 12:56:53,357 INFO solr.SolrMappingReader - source: tstamp dest: tstamp
2012-09-13 12:56:53,357 INFO solr.SolrMappingReader - source: url dest: id
2012-09-13 12:56:53,357 INFO solr.SolrMappingReader - source: url dest: url
2012-09-13 12:56:53,409 INFO solr.SolrWriter - Indexing 18 documents
2012-09-13 12:56:53,604 WARN mapred.LocalJobRunner - job_local_0001
org.apache.solr.common.SolrException: Missing solr core name in path
Missing solr core name in path
request: http://<host name>:8983/solr/update?wt=javabin&version=2
at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:430)
at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:244)
at org.apache.solr.client.solrj.request.AbstractUpdateRequest.process(AbstractUpdateRequest.java:105)
at org.apache.nutch.indexer.solr.SolrWriter.close(SolrWriter.java:142)
at org.apache.nutch.indexer.IndexerOutputFormat$1.close(IndexerOutputFormat.java:48)
at org.apache.hadoop.mapred.ReduceTask$OldTrackingRecordWriter.close(ReduceTask.java:466)
at org.apache.hadoop.mapred.ReduceTask.runOldReducer(ReduceTask.java:530)
at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:420)
at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:260)
2012-09-13 12:56:53,981 ERROR solr.SolrIndexer - java.io.IOException: Job failed!
在 Solr 中我找不到任何日志文件。
请帮我解决我真的被这个问题困扰的问题。