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From Doug Meil <doug.m...@explorysmedical.com>
Subject Re: HBase vs. HDFS
Date Tue, 02 Oct 2012 00:54:12 GMT

Hi there-

Might want to start with thisŠ

http://hbase.apache.org/book.html#perf.reading

Š if you're using default scan caching (which is 1) that would explain a
lot.




On 10/1/12 7:01 PM, "Juan P." <gordoslocos@gmail.com> wrote:

>Hi guys,
>I'm trying to get familiarized with HBase and one thing I noticed is that
>reads seem to very slow. I just tried doing a "scan 'my_table'" to get
>120K
>records and it took about 50 seconds to print it all out.
>
>In contrast "hadoop fs -cat my_file.csv" where my_file.csv has 120K lines
>completed in under a second.
>
>Is that possible? Am I missing something about HBase reads?
>
>Thanks,
>Joni



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