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The following page has been changed by udanax:
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The comment on the change is:
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the architecture to which the comment is directed. Thank you.
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- '''By [wiki:udanax udanax]'''
- I'm not in the implementation group of HBase.
-
- So far, I haven't fully figured out how your view/understand the ideas of !BigTable or if
you are dealing with parallel processing issues when planning strategies/implementing HBase.
-
- * I am not sure I understand the requirement here. We do plan to have an interface between
Hadoop map/reduce and HBase. Do you have other requirements? If so, listing them here would
help us prioritize future work. -- JimKellerman
-
- So, I've recently started a similar project. But, I indeed hope that i`ll bring some ideas
to your group discussion and learn more from Hbase.
-
- Please check my "!BigTable !TestSimulation Code Source", which you can download from here:
- [[BR]]http://www.hadoop.co.kr/moin.cgi/Maplib?action=AttachFile&do=get&target=maplib-0.0.1-alpha.tgz
-
- I expect can recording of multiple <K,V> maps from Once-through process to parsing
a tab delimited text file.
-
- {{{#!java
- Table t = new Table();
- t.Create("webtable", new String[]{"anchor","language"});
-
- //Write a new anchor, language
- RowMutation r1 = new RowMutation(t.OpenOrDie("webtable"), "udanax.org");
-
- r1.Set("anchor:hadoop.co.kr","hadoop korean user group");
- r1.Set("anchor:joinc.co.kr","joinc");
- r1.Set("language:kr", "euc-kr");
- r1.Set("anchor:hadoop.co.kr", "hadoop");
- r1.Set("anchor:naver.com", "naver");
-
- Operation op = new Operation();
- op.Apply(r1);
-
- //Reading from table
- Scanner stream = new Scanner("webtable");
- stream.FetchColumnFamily("anchor");
- stream.Lookup("udanax.org");
-
- while(stream.next())
- {
- System.out.print("(RowName):");
- System.out.print(stream.RowName());
- System.out.print(" (ColumnName):");
- System.out.print(stream.ColumnName());
- System.out.print(" (Value):");
- System.out.println(stream.Value());
- }
-
- stream.close();
- }}}
-
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