I have often gotten confused by the "Node Count" field from stat, thinking it meant cluster nodes, not znodes. I have to remind myself every time I see it. Folks amenable to changing the name?
.. Adam On Tue, May 8, 2012 at 2:54 PM, Something Something < [email protected]> wrote: > Hmm... > > > Trying 127.0.0.1... > Connected to localhost. > Escape character is '^]'. > stat > Zookeeper version: 3.3.4-cdh3u3--1, built on 01/26/2012 20:09 GMT > Clients: > /127.0.0.1:42510[0](queued=0,recved=1,sent=0) > > Latency min/avg/max: 0/0/0 > Received: 4 > Sent: 3 > Outstanding: 0 > Zxid: 0x100000000 > Mode: follower > Node count: 11 > Connection closed by foreign host. > > > Not sure I understand this output. I have 9 nodes in the ensemble. > > On Tue, May 8, 2012 at 2:45 PM, Jordan Zimmerman <[email protected] > >wrote: > > > Yes - they should. Keep in mind that the zoo.cfg, and the ID file must be > > correct and in agreement on each instance. You can do a stat on each > > instance to see what state it's in: > > > > >telnet localhost 2181 > > stat > > > > -JZ > > > > On 5/8/12 2:43 PM, "Something Something" <[email protected]> > wrote: > > > > >Thanks Jordan. Will definitely look at the cluster management tool. In > > >the mean time, am I correct with my assumption in #4? Once all of them > > >are > > >started they would automagically start talking to each other, right? > > > > > > > > >On Tue, May 8, 2012 at 2:36 PM, Jordan Zimmerman > > ><[email protected]>wrote: > > > > > >> Yes, you must start them all individually. ZooKeeper does not > currently > > >> have any cluster-wide management tools built in. > > >> > > >> FYI - we've open sourced a cluster management tool for ZooKeeper. > Please > > >> have a look: > > >> > > >> https://github.com/Netflix/exhibitor > > >> > > >> On 5/8/12 2:31 PM, "Something Something" <[email protected]> > > >>wrote: > > >> > > >> >Hello, > > >> > > > >> >Trying to follow directions from here: > > >> > > > >> > > >> > > > http://zookeeper.apache.org/doc/trunk/zookeeperAdmin.html#sc_zkMulitServe > > >>r > > >> >Setup > > >> > > > >> >to setup a cluster of zookeepers. > > >> > > > >> >Questions: > > >> > > > >> >1) If everything is setup correctly, do I have to go to each machine > > >>and > > >> >start Zookeeper server in each of them individually? > > >> >2) I was thinking if I start it on one master machine (well there's > no > > >> >real master) then all zookeepers in the quorum would be started, but > > >>this > > >> >is not how it works correct? > > >> >3) If I start individually, then I get messages saying the other > > >> >zookeepers haven't started. Is that just a warning? > > >> >4) When all of them are started, would they all be able to talk to > > >>each > > >> >other? > > >> > > > >> >Sorry for the dumb questions and thanks for the help. > > >> > > >> > > > > >
