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From Ted Yu <yuzhih...@gmail.com>
Subject Re: if/when zookeeper goes down, how to recover?
Date Sat, 14 Jun 2014 14:13:27 GMT
bq. what is the process do recover?

You need to bring zookeeper nodes back as soon as possible.

bq. will all clients reconnect or do you have to restart all servers?

This depends on the release of hbase you're using and the duration which
zookeeper ensemble is down.
If the duration is longer than the value for zookeeper.session.timeout,
region servers would go down.

See also http://hbase.apache.org/book.html#zookeeper


On Sat, Jun 14, 2014 at 6:31 AM, S Ahmed <sahmed1020@gmail.com> wrote:

> Hello,
>
> If zookeeper goes down (all of them if you have 3/5 nodes), what is the
> process do recover?
>
> If you simply bring back the zookeeper nodes, will all clients reconnect or
> do you have to restart all servers?
>
> Thanks.
>

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