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From Todd Lipcon <t...@cloudera.com>
Subject Re: That append patch in 0.20
Date Fri, 28 Jan 2011 20:29:10 GMT
Unfortunately the append branch changes things regardless of whether this
flag is set. So if you don't trust the branch with the config true, you
shouldn't trust it with the config false either.

That said, I trust it with it either value ;-)

-Todd

On Fri, Jan 28, 2011 at 11:01 AM, Milind Bhandarkar <
mbhandarkar@linkedin.com> wrote:

> Mmm...
>
> Like this ?
>
> <property>
>  <name>dfs.support.append</name>
>  <value>false</value>
>  <description>Does HDFS allow appends to files?
>               This is currently set to false because there are bugs in the
>               "append code" and is not supported in any prodction cluster.
>  </description>
> </property>
>
> It's there already.
>
> - milind
>
> On Jan 28, 2011, at 10:49 AM, Ian Holsman wrote:
>
> > Hey guys.
> >
> > I was speaking to some people a couple of nights ago, and we came up with
> an idea about it (which I'm sure has been mentioned before so apologies
> beforehand).
> >
> > could we make append a configuration option. either at build or at run
> time.
> >
> > that way we could let alot of the hbase users run off the same codebase
> and not have them patch it themselves.
> >
> > sure.. we will still have the same testing issues, and debates on if it
> is stable or properly tested.. we can put big warning messages in the
> documentation on when people should be using it.. but at least they could
> get a regular build
> > and run it.
> >
> > so.. the question to the experts.. can the append patch be made into a
> configuration option such that if people don't have it enabled it won't
> affect them.
> >
> > Thanks for listening
> >
> > --ian
>
> ---
> Milind Bhandarkar
> mbhandarkar@linkedin.com
>
>
>
>


-- 
Todd Lipcon
Software Engineer, Cloudera

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