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Date: Tue, 28 Feb 2012 12:41:22 +0000
Subject: Failed to join ring (NAT)
From: Richard Evans <richard.evans@thoughtbreak.com>
To: <user@cassandra.apache.org>
Message-ID: <CB727BF2.1B65F%richard.evans@thoughtbreak.com>
Thread-Topic: Failed to join ring (NAT)
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I have a small ring of two nodes running successfully on aws.

In order to understand cassandra support for NAT I have tried to add anothe=
r
node outside aws on a machine behind NAT.
When I try to join the ring, there is a 30s pause after starting the
messaging service and  then it fails, unable to find other nodes.

 12:16:29,834 Starting Messaging Service on port 7000
 INFO 12:16:29,848 JOINING: waiting for ring and schema information
 INFO 12:16:59,849 JOINING: schema complete, ready to bootstrap
 INFO 12:16:59,850 JOINING: getting bootstrap token
ERROR 12:16:59,853 Exception encountered during startup
java.lang.RuntimeException: No other nodes seen!  Unable to bootstrap.If yo=
u
intended to start a single-node cluster, you should make sure your
broadcast_address (or listen_address) is listed as a seed.  Otherwise, you
need to determine why the seed being contacted has no knowledge of the rest
of the cluster.  Usually, this can be solved by giving all nodes the same
seed list.
at=20
org.apache.cassandra.dht.BootStrapper.getBootstrapSource(BootStrapper.java:=
1
68)
at=20
org.apache.cassandra.dht.BootStrapper.getBalancedToken(BootStrapper.java:15=
0
)

The new node config
seed_provider:
 - seeds: <awsNode1 external address>

listen_address: <newNode internal address>
broadcast_address: <newNode external address>

The AWS security group config..
Admits traffic from <newNode external address> on ports 7000, 7001, 8080

Netwok paths
When the new node was attempting to start, I proved the paths between the
seed and the new node. I could =8A.
 - telnet from awsNode1 to newNode 7000
 - telnet from newNode to awsNode1 7000

Can anyone spot my beginner's mistake?
Thanks,
Richard


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<html><head></head><body style=3D"word-wrap: break-word; -webkit-nbsp-mode: s=
pace; -webkit-line-break: after-white-space; font-size: 14px; font-family: C=
alibri, sans-serif; "><div><div><div style=3D"color: rgb(0, 0, 0); ">I have a =
small ring of two nodes running successfully on aws.&nbsp;</div><div style=3D"=
color: rgb(0, 0, 0); "><br></div><div style=3D"color: rgb(0, 0, 0); ">In order=
 to understand cassandra support for NAT I have tried to add another node ou=
tside aws on a machine behind NAT.</div><div style=3D"color: rgb(0, 0, 0); ">W=
hen I try to join the ring, there is a 30s pause after starting the messagin=
g service and &nbsp;then it fails, unable to find other nodes.</div><div sty=
le=3D"color: rgb(0, 0, 0); "><br></div><div><div><span class=3D"Apple-style-span=
" style=3D"color: rgb(255, 0, 0); ">&nbsp;12:16:29,834 Starting Messaging Serv=
ice on port 7000</span></div></div><div><font class=3D"Apple-style-span" color=
=3D"#ff0000"><div>&nbsp;INFO 12:16:29,848 JOINING: waiting for ring and schema=
 information</div><div>&nbsp;INFO 12:16:59,849 JOINING: schema complete, rea=
dy to bootstrap</div><div>&nbsp;INFO 12:16:59,850 JOINING: getting bootstrap=
 token</div><div>ERROR 12:16:59,853 Exception encountered during startup</di=
v><div>java.lang.RuntimeException: No other nodes seen! &nbsp;Unable to boot=
strap.If you intended to start a single-node cluster, you should make sure y=
our broadcast_address (or listen_address) is listed as a seed. &nbsp;Otherwi=
se, you need to determine why the seed being contacted has no knowledge of t=
he rest of the cluster. &nbsp;Usually, this can be solved by giving all node=
s the same seed list.</div><div><span class=3D"Apple-tab-span" style=3D"white-sp=
ace:pre">	</span>at org.apache.cassandra.dht.BootStrapper.getBootstrapSource=
(BootStrapper.java:168)</div><div><span class=3D"Apple-tab-span" style=3D"white-=
space:pre">	</span>at org.apache.cassandra.dht.BootStrapper.getBalancedToken=
(BootStrapper.java:150)</div></font><span class=3D"Apple-style-span" style=3D"co=
lor: rgb(255, 0, 0); "><span class=3D"Apple-tab-span" style=3D"white-space:pre">=
	</span></span></div><div style=3D"color: rgb(0, 0, 0); "><br></div><div style=
=3D"color: rgb(0, 0, 0); "><b>The new node config&nbsp;</b></div><div style=3D"c=
olor: rgb(0, 0, 0); ">seed_provider:</div><div style=3D"color: rgb(0, 0, 0); "=
><div style=3D"color: rgb(0, 0, 0); ">&nbsp;- seeds: &lt;awsNode1 external add=
ress&gt;</div><div style=3D"color: rgb(0, 0, 0); "><br></div><div style=3D"color=
: rgb(0, 0, 0); ">listen_address: &lt;newNode internal address&gt;&nbsp;</di=
v><div style=3D"color: rgb(0, 0, 0); "><div style=3D"color: rgb(0, 0, 0); ">broa=
dcast_address: &lt;newNode external address&gt;</div><div style=3D"color: rgb(=
0, 0, 0); "><br></div><div style=3D"color: rgb(0, 0, 0); "><b>The AWS security=
 group config..</b></div><div style=3D"color: rgb(0, 0, 0); "><div style=3D"colo=
r: rgb(0, 0, 0); "><div style=3D"color: rgb(0, 0, 0); "><div style=3D"color: rgb=
(0, 0, 0); ">Admits traffic from &lt;newNode external address&gt; on ports 7=
000, 7001, 8080</div><div><div style=3D"color: rgb(0, 0, 0); "><div style=3D"col=
or: rgb(0, 0, 0); "><div style=3D"color: rgb(0, 0, 0); "><br></div></div></div=
></div></div></div></div></div></div><div style=3D"color: rgb(0, 0, 0); "><b>N=
etwok paths</b></div><div style=3D"color: rgb(0, 0, 0); ">When the new node wa=
s attempting to start, I proved the paths between the seed and the new node.=
 I could &#8230;.</div><div style=3D"color: rgb(0, 0, 0); ">&nbsp;- telnet fro=
m awsNode1 to newNode 7000</div><div style=3D"color: rgb(0, 0, 0); "><div><div=
 style=3D"color: rgb(0, 0, 0); ">&nbsp;- telnet from newNode to awsNode1 7000<=
/div></div><div><br></div></div><div style=3D"color: rgb(0, 0, 0); ">Can anyon=
e spot my beginner's mistake?&nbsp;</div><div style=3D"color: rgb(0, 0, 0); ">=
Thanks,</div><div style=3D"color: rgb(0, 0, 0); ">Richard</div><div style=3D"col=
or: rgb(0, 0, 0); "><div><div><br></div></div></div></div></div></body></htm=
l>

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