that yahoo was supporting thousands of clients from a 5 node cluster.
Some of my numbers may be off, but a single node for a small cluster
should be just fine.
On Tue, Nov 10, 2009 at 5:28 PM, Tatsuya Kawano
wrote:
hi ishwar,
they both stop serving because they can't say "I'm in the majority."
JIRA says "Clients randomly connect to a server, which typically
balances the number of sessions", so the answer should be yes.
https://issues.apache.org/jira/browse/ZOOKEEPER-571
think they are disconnected from the HBase cluster, so they shutdown
gracefully. You shouldn't loose any data by this, but you have to
start the HBase cluster again once ZK ensemble becomes available.
Thanks,
--
Tatsuya Kawano (Mr.)
Tokyo, Japan
I read that zookeeper needs a simple majority to recover from failures.
So is 2 same as 1 as far as recovery goes?
Yes. When they lost contact with other (e.g. by a network disruption),So is 2 same as 1 as far as recovery goes?
they both stop serving because they can't say "I'm in the majority."
Does it help in load balancing.
I don't find a clear answer for this in ZK documents, but I found thisJIRA says "Clients randomly connect to a server, which typically
balances the number of sessions", so the answer should be yes.
https://issues.apache.org/jira/browse/ZOOKEEPER-571
If 1 of 2 goes down , does it affect the hbase tables? i,e if i install a new
zoo keeper server (replace) can i recover the tables?
When ZK ensemble becomes unavailable, HBase master and region serverszoo keeper server (replace) can i recover the tables?
think they are disconnected from the HBase cluster, so they shutdown
gracefully. You shouldn't loose any data by this, but you have to
start the HBase cluster again once ZK ensemble becomes available.
Thanks,
--
Tatsuya Kawano (Mr.)
Tokyo, Japan
On Wed, Nov 11, 2009 at 9:34 AM, ishwar ramani wrote:
Hi,
I am setting up a simple hbase system. I currently have a 2 node
clsuter server for
the zookeeper servers ...
I read that zookeeper needs a simple majority to recover from failures.
So is 2 same as 1 as far as recovery goes? Does it help in load balancing.
If 1 of 2 goes down , does it affect the hbase tables? i,e if i install a new
zoo keeper server (replace) can i recover the tables?
thanks
ishwar
Hi,
I am setting up a simple hbase system. I currently have a 2 node
clsuter server for
the zookeeper servers ...
I read that zookeeper needs a simple majority to recover from failures.
So is 2 same as 1 as far as recovery goes? Does it help in load balancing.
If 1 of 2 goes down , does it affect the hbase tables? i,e if i install a new
zoo keeper server (replace) can i recover the tables?
thanks
ishwar
