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From Ryan Rawson <ryano...@gmail.com>
Subject Re: Hi,can hbase store picture and video such as blob field ? Any other simply question.
Date Mon, 10 Aug 2009 20:20:32 GMT
HBase can help one overcome the 'small file' problem of HDFS.  But
HBase may not be the best methodology once files get beyond a certain
size (that size might be in the 10mb+ area).  However that is no
longer 'small files' and HDFS would be suitable again.

Another aspect to consider is that access for a single row is mediated
by a single regionserver, which means if you have extremely high load
on only a few rows, you might not achieve scalability.  Caching layers
(reverse proxies, cdns) can help solve this. But if you are looking at
a high volume, high performance download server that can handle
millions of clients asking for the same object, you might need to
think a bit more.


On Mon, Aug 10, 2009 at 1:13 PM, Tim Sell<trsell@gmail.com> wrote:
> Yes you can store binary data in hbase, all data in hbase is treated
> as just raw bytes.
> It would probably suit well things like thumbnails? I think youtube
> uses bigtable for the thumbnail images of their videos. And they store
> their actual videos in cdn's (and gfs for the longtail I guess).
> So if you have a lot of large binaries, you'll probably want just the
> links in hbase, with the files elsewhere. Maybe mogilefs is more
> suitable then hdfs though, because hdfs doesn't like lots of "small"
> files?
> ~Tim.
> 2009/8/10 Rocks <nutchmaillist@gmail.com>:
>> Hi,i want to konw whether hbase can store picture  and video as blob field?
>> Maybe I  should store the picture path in it ,and point to the pic or video
>> in file system?
>> but how to store the pic and video ,how to define the path pointed to the
>> file system in top of hadoop? Can anyone give me some suggestion?
>> And  i am still uncertain where is my hbase storage file in my HDFS ?In the
>> command "bin/hadoop dfs -ls" , i cannot see anything related to hbase file.
>> It will be greatly appreciated if you give me some hlep.

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