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From Cameron McKenzie <mckenzie....@gmail.com>
Subject Re: Basic 3 ZK, bring 1 down question.
Date Thu, 29 Jan 2015 00:12:31 GMT
Can't help you out on the Exhibitor front as I haven't used it. I'd have a
look at the configuration files it's generating though as it appears that
some of the nodes are configured as observers rather than fully fledged
node members.

On Thu, Jan 29, 2015 at 11:08 AM, Dillian Murphey <crackshotmule@gmail.com>
wrote:

> Thanks Cameron, ok so I just ran the exercise again.  I killed a server.
> The other two ZKs go offline and the zookeeper.out log is as so:
>
> So why does this feel as if I need to manually adjust the config file?
>
> Thanks. P.S. I am using netflix opensource exhibitor. It may be a factor, I
> don't know. The creator seems to brush me off a lot.
>
> 2015-01-29 00:05:51,271 [myid:] - ERROR [main:QuorumPeerMain@85] - Invalid
> config, exiting abnormally
> org.apache.zookeeper.server.quorum.QuorumPeerConfig$ConfigException: Error
> processing /zookeeper/zookeeper-3.4.6/bin/../conf/zoo.cfg
> at
>
> org.apache.zookeeper.server.quorum.QuorumPeerConfig.parse(QuorumPeerConfig.java:123)
> at
>
> org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:101)
> at
>
> org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:78)
> Caused by: java.lang.IllegalArgumentException: Observers w/o quorum is an
> invalid configuration
> at
>
> org.apache.zookeeper.server.quorum.QuorumPeerConfig.parseProperties(QuorumPeerConfig.java:284)
> at
>
> org.apache.zookeeper.server.quorum.QuorumPeerConfig.parse(QuorumPeerConfig.java:119)
> ... 2 more
> Invalid config, exiting abnormally
> tail: zookeeper.out: file truncated
> 2015-01-29 00:06:11,561 [myid:] - INFO  [main:QuorumPeerConfig@103] -
> Reading configuration from: /zookeeper/zookeeper-3.4.6/bin/../conf/zoo.cfg
> 2015-01-29 00:06:11,566 [myid:] - ERROR [main:QuorumPeerMain@85] - Invalid
> config, exiting abnormally
> org.apache.zookeeper.server.quorum.QuorumPeerConfig$ConfigException: Error
> processing /zookeeper/zookeeper-3.4.6/bin/../conf/zoo.cfg
> at
>
> org.apache.zookeeper.server.quorum.QuorumPeerConfig.parse(QuorumPeerConfig.java:123)
> at
>
> org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:101)
> at
>
> org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:78)
> Caused by: java.lang.IllegalArgumentException: Observers w/o quorum is an
> invalid configuration
> at
>
> org.apache.zookeeper.server.quorum.QuorumPeerConfig.parseProperties(QuorumPeerConfig.java:284)
> at
>
> org.apache.zookeeper.server.quorum.QuorumPeerConfig.parse(QuorumPeerConfig.java:119)
> ... 2 more
> Invalid config, exiting abnormally
>
> On Wed, Jan 28, 2015 at 3:45 PM, Cameron McKenzie <mckenzie.cam@gmail.com>
> wrote:
>
> > Assuming that your 2 remaining servers can communicate with each other
> the
> > cluster should should remain online as it still has a quorum (2 / 3 nodes
> > are online). There may be a brief period where the cluster won't accept
> > requires while a new leadership election occurs between the 2 remaining
> > nodes.
> > cheers
> > Cam
> >
> > On Thu, Jan 29, 2015 at 10:40 AM, Dillian Murphey <
> crackshotmule@gmail.com
> > >
> > wrote:
> >
> > > If I have 3 ZK instances running on separate servers and I terminate
> one
> > of
> > > the servers, what should I expect to happen?
> > >
> > > Will the remaining 2 zookeepers continue happily and stay online
> without
> > > any interruption?
> > >
> > > I'm using exhibitor/zookeeper and I'm attempting this scenerio and what
> > I'm
> > > seeing is my remaining 2 zookeepers go offline.  I thought the whole
> > point
> > > of having a majority was to allow a failure?
> > >
> > >
> > > Thank you. I'm new so be kind.
> > >
> >
>

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