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From Ryan Rawson <ryano...@gmail.com>
Subject Re: move meta table to ZK
Date Fri, 18 Mar 2011 04:32:21 GMT
Is it possible to search a list of z nodes? That is what we do now with meta
in hbase.

I used to be a fan, but I think self hosting all important meta data is the
best approach. It makes lots of things easier, like replication, snapshots,
etc.
On Mar 17, 2011 9:27 PM, "jiangwen w" <wjiangwen@gmail.com> wrote:
> how do you think about moving meta table to ZK, so no meta table are
needed.
> if we do so, we need enhance ZK in the following way:
> 1. let children of ZNode in order.
>
> if we do so, we can benifit:
>
> 1. no need to treat meta table as a special way. this will simplify the
code
> a lot
> 2. ZK is highly available, so we don't worry the availablility of the meta
> data.
> 3. currently if the region server where meta table is on failed, the whole
> cluster may pause.
> if we move meta table to ZK, there is no such problem.
> 4. meta table may be a hotspot, but in ZK reading is scalable by adding
more
> observers.
>
>
> Sincerely

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