Hi,
We are currently evaluating use of ZK in our infrastructure. In our
setup we have a set of servers running from two different power feeds.
If one power feed goes away so does half of the servers. This makes
problematic to configure ZK ensemble that would tolerate such outage.
The network p
referring to
http://hadoop.apache.org/zookeeper/docs/r3.3.1/zookeeperHierarchicalQuorums.html
?
ben
On 07/14/2010 12:43 PM, Sergei Babovich wrote:
Hi,
We are currently evaluating use of ZK in our infrastructure. In our
setup we have a set of servers running from two different power feeds.
If
mind would look like to make your setting work. Even if you
don't have partitions, variation in message delays can cause
inconsistencies in your ZooKeeper cluster. Keep in mind that we make
the assumption that quorums intersect.
-Flavio
On Jul 14, 2010, at 9:43 PM, Sergei Babovich wrote:
ently implemented.
-Flavio
On Jul 14, 2010, at 11:16 PM, Sergei Babovich wrote:
Thanks, Flavio,
Yep... I see. This is a problem. Any better idea?
As an alternative option we could probably consider running single ZK
node on EC2 - only in order to handle this specific case. Does it make
sense to you?
neral because ZK is reliable enough that
people forget about it. That means it won't be top of mind in a disaster
response.
On Thu, Jul 15, 2010 at 10:30 AM, Sergei Babovich
wrote:
Three power sources obviously would solve the problem. Unfortunately at
this moment it does not seem to be fe
