In my case, I am pretty sure that the configuration was right. I will
reproduce it and post more info later. Thanks.
On Mon, Aug 16, 2010 at 1:08 PM, Patrick Hunt wrote:
> Try using the logs, stat command or JMX to verify that each ZK server is
> indeed a leader/follower as expected. You should
Try using the logs, stat command or JMX to verify that each ZK server is
indeed a leader/follower as expected. You should have one leader and n-1
followers. Verify that you don't have any "standalone" servers (this is
the most frequent error I see - misconfiguration of a server such that
it thi
Hi Dr Hao,
If you think this is not a configuration issue, then it would be a good idea
to open a jira. Thanks.
On Thu, Aug 12, 2010 at 8:42 PM, Ted Dunning wrote:
> On Thu, Aug 12, 2010 at 4:57 PM, Dr Hao He wrote:
>
> > hi, Ted,
> >
> > I am a little bit confused here. So, is the node incon
On Thu, Aug 12, 2010 at 4:57 PM, Dr Hao He wrote:
> hi, Ted,
>
> I am a little bit confused here. So, is the node inconsistency problem
> that Vishal and I have seen here most likely caused by configurations or
> embedding?
>
> If it is the former, I'd appreciate if you can point out where those
hi, Ted,
I am a little bit confused here. So, is the node inconsistency problem that
Vishal and I have seen here most likely caused by configurations or embedding?
If it is the former, I'd appreciate if you can point out where those silly
mistakes have been made and the correct way to embed ZK
i thought there was a jira about supporting embedded zookeeper. (i
remember rejecting a patch to fix it. one of the problems is that we
have a couple of places that do System.exit().) i can't seem to find it
though.
one case that would be great for embedding is writing test cases, so i
think
I am not saying that the API shouldn't support embedded ZK.
I am just saying that it is almost always a bad idea. It isn't that I am
asking you to not do it, it is just that I am describing the experience I
have had and that I have seen others have. In a nutshell, embedding leads
to problems and
Hi,
I don't intend to hijack Dr. Hao's email thread here, but I would like to
point out two things:
1. I use embedded server as well. But I don't use any setters. We extend
QuorumPeerMain and call initializeAndRun() function. So we are doing pretty
much the same thing that QuorumPeerMain is doin
It doesn't.
But running a ZK cluster that is incorrectly configured can cause this
problem and configuring ZK using setters is likely to be subject to changes
in what configuration is needed. Thus, your style of code is more subject
to decay over time than is nice.
The rest of my comments detail
Hi Ted,
Can you explain why running ZK in embedded mode can cause znode
inconsistencies?
Thanks.
-Vishal
On Thu, Aug 12, 2010 at 12:01 AM, Ted Dunning wrote:
> Try running the server in non-embedded mode.
>
> Also, you are assuming that you know everything about how to configure the
> quorumPe
Try running the server in non-embedded mode.
Also, you are assuming that you know everything about how to configure the
quorumPeer. That is going to change and your code will break at that time.
If you use a non-embedded cluster, this won't be a problem and you will be
able to upgrade ZK version
hi, Ted and Mahadev,
Here are some more details about my setup:
I run zookeeper in the embedded mode with the following code:
quorumPeer = new QuorumPeer();
quorumPeer.setClientPort(getClientPort());
HI Dr Hao,
Can you please post the configuration of all the 3 zookeeper servers? I
suspect it might be misconfigured clusters and they might not belong to the
same ensemble.
Just to be clear:
/xpe/queues/3bd7851e79381ef4bfd1a5857b5e34c04e5159e5/msgs/msg002807
And other such nodes exist on o
What do your nodes have in their logs during startup? Are you sure
you have them configured correctly? Are the file ephemeral? Could
they have disappeared on their own?
Sent from my iPhone
On Aug 11, 2010, at 12:10 AM, Dr Hao He wrote:
hi, Ted,
Thanks for the reply. Here is what I d
hi, Ted,
Thanks for the reply. Here is what I did:
[zk: localhost:2181(CONNECTED) 0] ls
/xpe/queues/3bd7851e79381ef4bfd1a5857b5e34c04e5159e5/msgs/msg002948
[]
zk: localhost:2181(CONNECTED) 1] ls
/xpe/queues/3bd7851e79381ef4bfd1a5857b5e34c04e5159e5/msgs
[msg002807, msg
Can you provide some more information? The output of some of the four
letter commands and a transcript of what you are doing would be very
helpful.
Also, there is no way for znodes to exist on one node of a properly
operating ZK cluster and not on either of the other two. Something has to
be wro
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