You can upgrade to 0.92.2 first, followed by upgrade to 0.94.4

Please consider upgrading Hadoop to 1.0.4 as well

Thanks

On Jan 15, 2013, at 4:47 AM, 幻风 <[EMAIL PROTECTED]> wrote:

> Hi, everybody,
>
> I want to upgrade a HBase cluster from 0.90.5 to 0.94. The cluster has
> about 50 nodes and the hadoop version is 0.20.2.
> Is there an easy way to do it? Shutdown is acceptable and what I really
> care is the safety of the data.
> Hope for your suggestions.
>
> Thanks,
> Mickey