[英]Nutch Crawl Script
运行 Nutch 1.10,我在使用 Nutch 开发人员提供的爬网脚本时遇到问题:
Usage: crawl [-i|--index] [-D "key=value"] <Seed Dir> <Crawl Dir> <Num Rounds>
-i|--index Indexes crawl results into a configured indexer
-D A Java property to pass to Nutch calls
Seed Dir Directory in which to look for a seeds file
Crawl Dir Directory where the crawl/link/segments dirs are saved
Num Rounds The number of rounds to run this crawl for
Example: bin/crawl -i -D solr.server.url=http://localhost:8983/solr/ urls/ TestCrawl/ 2
我想知道是否有人可以让我对阅读本文有所了解。 例如:
-i|--index **What is the configured indexer? Is this part of Nutch? Or is it an another program like Solr? When I put in -i, what am I doing?**
-D **Not sure how these get used in the crawl but the instruction is pretty self-explanatory.**
Seed Dir **Self-explanatory but where do I put the directory within Nutch? I created a urls directory (per the instructions) in the apache-nutch-1.10 directory. I've also tried putting it in the apache-nutch-1.10/bin file because that is were the crawl starts from.**
Crawl Dir **Is this where the results of the crawl go or is there where the data for the injection to the crawldb goes? If its the latter where do I get said data? The directory starts out empty and never gets filled. Confusing!**
Num Rounds **Self-explanatory**
其他问题:爬取的结果去哪儿了? 他们是否必须使用 Solr 核心(或其他一些软件)? 他们可以直接转到目录以便我查看吗? 它们以什么格式出现?
谢谢!
-i :是 Solr/ElasticSearch 等程序。因此,当您指定 -i 选项时,爬网脚本将运行索引作业,否则将跳过它。
Crawl Dir : 是存储爬取数据的目录。 这包括crawldb、segments 和linkdb。 所以基本上所有与爬行相关的数据都放在这里。
爬网的结果进入您指定的 crawlDir。 它存储为序列文件,并且有查看数据的命令。
您可以在 - https://wiki.apache.org/nutch/CommandLineOptions找到它们。
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