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From: Doug Meil <doug.meil@explorysmedical.com>
To: "user@hbase.apache.org" <user@hbase.apache.org>
Subject: Re: Sequential read-update HFile
Thread-Topic: Sequential read-update HFile
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Date: Tue, 8 May 2012 17:05:12 +0000
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Once a StoreFile is written to disk it is never updated.

http://hbase.apache.org/book.html#regions.arch

So the options are are either Puts (like you've been describing - which
will create new StoreFiles per MemStore flush) or bulk loading HFiles (new
StoreFiles).


Out of curiosity, are you trying to update *every* row?  Most of the rows?
=20


On 5/8/12 12:04 PM, "Nikolaos Papailiou" <npapa@cslab.ntua.gr> wrote:

>Hi all,
>
>I would like to sequentially read and update some HFiles. That means
>that I want something like a HFileScanner but with the capability of
>directly updating the current key/value pair. I have been trying to do
>that with sequential puts and major compactions of the region but the
>performance is very poor. Is there another way to do this efficiently?
>
>Thanks,
>Nikos
>