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From Norbert Burger <norbert.bur...@gmail.com>
Subject Re: Using the Hadoop bundled in the lib directory of HBase
Date Sat, 05 Feb 2011 16:51:03 GMT
For testing purposes, it is possible to run HBase without HDFS and the
benefits of durability.  Benoit Sigoure has a good writeup here:


But for larger deployments, HDFS is the way to go.  Another approach you
might consider is the pseudo-distributed option, where you get Hadoop+HBase
running all on the same node (http://goo.gl/Rytnp).


On Sat, Feb 5, 2011 at 9:51 AM, Norbert Burger <norbert.burger@gmail.com>wrote:

> Mike, you'll also need also access to an installation of Hadoop, whether
> this on the same machines as your HBase install (common), or somewhere
> else.  Often, people install Hadoop first and then layer HBase over it.
> HBase depends on core Hadoop functionality like HDFS, and uses the Hadoop
> JAR in lib/ to support this.  But this is library code only; what you're
> missing is the rest of Hadoop ecosystem (config files, directory structure,
> command-line tools, etc.)
> Norbert
> On Sat, Feb 5, 2011 at 9:21 AM, Ted Yu <yuzhihong@gmail.com> wrote:
>> On a related note:
>> http://wiki.apache.org/hadoop/Hadoop%20Upgrade (referenced by
>> http://wiki.apache.org/hadoop/Hbase/HowToMigrate#90) needs to be filled
>> out.
>> On Fri, Feb 4, 2011 at 11:47 PM, Mike Spreitzer <mspreitz@us.ibm.com>
>> wrote:
>> > Hi, I'm new to HBase and have a stupid question about its dependency on
>> > Hadoop.  Section of (http://hbase.apache.org/notsoquick.html)
>> says
>> > there is an "instance" of Hadoop in the lib directory of HBase.  What
>> > exactly is meant by "instance"?  Is it all I need, or do I need to get a
>> > "full" copy of Hadoop from elsewhere?  If HBase already has all I need,
>> I
>> > am having trouble finding it.  The Hadoop instructions refer to
>> commands,
>> > for example, that I can't find.
>> >
>> > Thanks,
>> > Mike

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