I guess organizations will rely on CDH with full doc, support...
The individuals will like to use Apache release, and especially
snapshots/trunk to get latest functionality and get insight of the
internals.
In this specific append/security case, it may be a bit more tricky
The CDH release sounds ahead of the Apache trunk, but I think it's a
matter of documentation and understanding of what is
implemented/supported in the trunk.
Tks,
- Eric
On 21/06/11 05:19, Zhong, Andy wrote:
Thank you! I have been successfully tried another workaround solution via
http://www.michael-noll.com/blog/2011/04/14/building-an-hadoop-0-20-x-version-for-hbase-0-90-2/comment-page-1/#comment-19757.
However, choosing between apache distribution and CDH seems a hot topic and a
tough decision recently. Could anyone share with your comments or thought?
Below are some of comments I captured from some papers:
1. CDH is great for getting a working setup running quickly with lots of
add-ons. But that comes at a cost of not fully understanding how the pieces
integrate and how various parts of the system work together. For Hadoop, that
can be deadly since it is complex and very operations hostile.
2. It also means that when asking for help, you might be stuck asking other
Cloudera users since it does diverge from Apache and the various other
distributions. A sort of 'vendor lock-in' based on patches, but that is going
to be a problem with any non-Apache distribution.
3. Going the pure-Apache route, yes, will be tougher. But the skills you learn
will be applicable to any Hadoop installation.
Thanks,
Andy Zhong
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Stack
Sent: Wednesday, June 08, 2011 11:53 AM
To: [email protected]
Subject: Re: Hadoop/HBase Upgrade Suggestion
On Wed, Jun 8, 2011 at 9:25 AM, Zhong, Sheng<[email protected]> wrote:
Could anyone give me suggestion for Hadoop/HBase upgrade? We're
currently using apache hadoop 0.20.2 + hbase 0.20.3 + zookeeper-3.2.2.
Has anyone done with latest stable version of hadoop-0.20.203.0rc1 +
Hbase 0.90.2, and will Hbase 0.90.2 have compatible issue with
hadoop-0.20.203.0rc1? I am very appreciated by any help and suggestion.
hadoop-0.20.203 does not have append support so its not recommended that you
run hbase on it. Here is our (a little stale at this point
-- see recent thread) story regards hadoop versions
http://hbase.apache.org/book/notsoquick.html#hadoop
St.Ack
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Eric
