Question regarding configuration and tuning...
Our current configuration/schema has fairly low hlog rollover sizes to
keep the possibility of data loss to a minimum. When we upgrade to .89
with append support, I imagine we'll be able to safely set this to a
much larger size. Are there any rough guidelines for what a good values
should be now?
-Daniel
On 9/28/10 6:13 PM, Buttler, David wrote:
Fantastic news, I look forward to it
Dave
-----Original Message-----
From: Todd Lipcon [mailto:[email protected]]
Sent: Tuesday, September 28, 2010 11:25 AM
To: [email protected]
Subject: Re: Upgrading 0.20.6 -> 0.89
On Tue, Sep 28, 2010 at 9:35 AM, Buttler, David<[email protected]> wrote:
I currently suggest that you use the CDH3 hadoop package. Apparently
StumbleUpon has a production version of 0.89 that they are using. It would
be helpful if Cloudera put that in their distribution.
Working on it ;-) CDH3b3 should be available in about 2 weeks and will
include an HBase version that's very similar to what StumbleUpon has
published.
-Todd
-----Original Message-----
From: Mark Laffoon [mailto:[email protected]]
Sent: Tuesday, September 28, 2010 8:00 AM
To: [email protected]
Subject: Upgrading 0.20.6 -> 0.89
We're using 0.20.6; we have a non-trivial application using many aspects
of hbase; we have a couple of customers in production; we understand this
is still pre-release, however we don't want to lose any data.
Will upgrading to 0.89 be a PITA?
Should we expect to be able to upgrade the servers without losing data?
Will there be tons of client code changes?
What about configuration changes (especially little changes that will bite
us)?
Do we need/want to upgrade hadoop at all (we're on 0.20.2)?
If we do upgrade, what is the recommended package to get it from?
Thanks in advance for any or all answers,
Mark
