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From "Andy Cobley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-5768) If a Seed can't be contacted, a new node comes up as a cluster of 1
Date Thu, 18 Jul 2013 09:54:48 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13712183#comment-13712183
] 

Andy Cobley commented on CASSANDRA-5768:
----------------------------------------

Jason,

this code seems to work:

{code}

private void buildSeedsList()
    {
	Set<InetAddress> tempseeds = DatabaseDescriptor.getSeeds();
       
	for (InetAddress seed : tempseeds)
	    {
		
		if (seed.equals(FBUtilities.getBroadcastAddress()) && seeds.size() == 1){

		    seedContacted = true;
		}else{
		    seeds.add(seed);
		}
	    }
    }
{code}

This boots if localhost ip = seed ip
It throws an exception if localhost ip != seed ip and seed ip can not be contacted

However if seed ip is the default 127.0.0.1 the code will throw a "java.lang.IllegalStateException:
Unable to contact any seeds!" exception. I'm not sure thats correct
                
> If a Seed can't be contacted, a new node comes up as a cluster of 1
> -------------------------------------------------------------------
>
>                 Key: CASSANDRA-5768
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5768
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 2.0 beta 1
>            Reporter: Andy Cobley
>            Assignee: Brandon Williams
>            Priority: Minor
>             Fix For: 2.0 beta 2
>
>         Attachments: 5768.txt
>
>
> Setting up a new test cluster using  2.0.0-beta1 and I noticed the following behaviour
with vnodes turned on.  
> I bring up one node all well and good.  however if I bring up a second node, that can't
contact the first (the first being the seed for the second) after a short period of time,
the second goes ahead and assumes it's the only node and bootstraps with all tokens.  
> NOTE also this email from Robert Coli 
> To: user@cassandra.apache.org
> Obviously if you have defined a seed and cannot contact it, the node should not start
as a cluster of one. I have a to-do list item to file a JIRA on the subject, but if you wanted
to file and link us, that'd be super. :)
> Startup trace (from the can't contact the seed messages below).
> http://aep.appspot.com/display/ABcWltCES1srzPrj5CkS69-GB8o/

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