Thank you Talat.
2013/10/22 Talat UYARER <[email protected]> > Hi Quang, > > This is very basic question. You can delete in hbase shell. You can read > this page > http://wiki.apache.org/hadoop/**Hbase/Shell<http://wiki.apache.org/hadoop/Hbase/Shell>. > That is very useful for beginners. > > Put a delete cell value at specified table/row/column and optionally > timestamp coordinates. Deletes must match the deleted cell's coordinates > exactly. When scanning, a delete cell suppresses older versions. To delete > a cell from 't1' at row 'r1' under column 'c1' marked with the time 'ts1', > do: > > hbase> delete 't1', 'r1', 'c1', ts1 > > For example, you want to delete http://www.google.com url and I assume > you use webpage table. We use our urls as row key. For www.google.com, > its row key is com.google.www:http/ > > hbase> delete 'webpage', 'com.google.www:http/ ' > > this delete www.google.com. But if you want to not fetch a lot of urls. > You can use urlfilter-regex plugin. You can write a regexp rule. > > Have a nice day, > Talat > > 21-10-2013 05:44 tarihinde, Quang Tri yazd?: > > I currently use Nutch with hbase.Now I dont want to crawl some link in >> databse. How can i delete this link. >> Thanks >> >> >
