Thank you, I will definitely take a look. Also, the TFile spec below helps
me to understand more,
what an exciting work !
https://issues.apache.org/jira/secure/attachment/12396286/TFile+Specification+20081217.pdf
My fellow superb hbase experts,
Looking at the HFile specs and have some questions.
How is a particular table cell in a HBase table being represented in the
HFile? Does the key of the key value pair represent the rowkey+column
family:qualifier+timestamp and the value represent the corresponding
I also found this informative article
http://cloudepr.blogspot.com/2009/09/hfile-block-indexed-file-format-to.html
http://cloudepr.blogspot.com/2009/09/hfile-block-indexed-file-format-to.htmlis
the key value pair be
eg column family1 with one qualifier 1 with 2 versions
key1 : rowkey1+column
I found this useful article that explains the internal storage of HFile
http://www.larsgeorge.com/2009/10/hbase-architecture-101-storage.html
http://www.larsgeorge.com/2009/10/hbase-architecture-101-storage.html
On Tue, Mar 22, 2011 at 11:31 AM, Weishung Chung weish...@gmail.com wrote:
I also
http://nosql.mypopescu.com/post/3220921756/hbase-internals-hfile-explained
might help.
Viv
On Tue, Mar 22, 2011 at 11:43 AM, Weishung Chung weish...@gmail.com wrote:
My fellow superb hbase experts,
Looking at the HFile specs and have some questions.
How is a particular table cell in a
Curious, why do you mention SequenceFile and TFile. Neither of
those are either in the hbase.io, and TFile is not used anywhere in
HBase.
-ryan
On Sat, Mar 19, 2011 at 9:01 AM, Weishung Chung weish...@gmail.com wrote:
I am browsing through the hadoop.io package and was wondering what other
I found this interesting article about sequence file, share it here
http://www.cloudera.com/blog/2011/01/hadoop-io-sequence-map-set-array-bloommap-files/
On Sun, Mar 20, 2011 at 6:04 AM, Niels Basjes ni...@basjes.nl wrote:
And then there is the matter of how you put the data in the file. I've
And then there is the matter of how you put the data in the file. I've
heard that some people write the data as protocolbuffers into the
sequence file.
2011/3/19 Harsh J qwertyman...@gmail.com:
Hello,
On Sat, Mar 19, 2011 at 9:31 PM, Weishung Chung weish...@gmail.com wrote:
I am browsing
I am browsing through the hadoop.io package and was wondering what other
file formats are available in hadoop other than SequenceFile and TFile?
Is all data written through hadoop including those from hbase saved in the
above formats? It seems like SequenceFile is in key value pair format.
Thank
Hello,
On Sat, Mar 19, 2011 at 9:31 PM, Weishung Chung weish...@gmail.com wrote:
I am browsing through the hadoop.io package and was wondering what other
file formats are available in hadoop other than SequenceFile and TFile?
Additionally, on Hadoop, there're MapFiles/SetFiles (Derivative of
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