http://www.datastax.com/support-forums/topic/why-cassandras-cluster-doesnt-work Software, Support, and Training for Apache Cassandra en-US Mon, 20 May 2013 09:13:05 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/why-cassandras-cluster-doesnt-work#post-8470 Thu, 17 Jan 2013 03:10:19 +0000 mailme365 8470@http://www.datastax.com/support-forums/ <p>Thank you khahn, I guess this is the root cause, since I'm using the virtual machine, so there is no DNS, I will try to try again in the real machine with DNS. Thanks a lot for your answer. </p> http://www.datastax.com/support-forums/topic/why-cassandras-cluster-doesnt-work#post-8454 Wed, 16 Jan 2013 14:13:53 +0000 khahn 8454@http://www.datastax.com/support-forums/ <p>Your problem sounds like it might be related to these things: </p> <p><a href="http://www.jointhegrid.com/highperfcassandra/?p=140" rel="nofollow">http://www.jointhegrid.com/highperfcassandra/?p=140</a></p> <p><a href="http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/what-other-ports-than-7199-need-to-be-open-for-nodetool-to-work-td7407319.html" rel="nofollow">http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/what-other-ports-than-7199-need-to-be-open-for-nodetool-to-work-td7407319.html</a> </p> http://www.datastax.com/support-forums/topic/why-cassandras-cluster-doesnt-work#post-8448 Wed, 16 Jan 2013 06:26:52 +0000 mailme365 8448@http://www.datastax.com/support-forums/ <p>Could anyone help on this? I'm still unable to run nodetool , get error "Failed to connect to '127.0.0.1:7199': Connection refused" </p> http://www.datastax.com/support-forums/topic/why-cassandras-cluster-doesnt-work#post-8385 Sun, 13 Jan 2013 16:16:19 +0000 mailme365 8385@http://www.datastax.com/support-forums/ <p>It's so weird, the cluster doesn't work in the past days, but it's working now, from the log file of each cluster machine, I find they joined cluster, and I did some test to create table , they are visible from all the nodes. </p> <p>However, when I execute nodetool ring, or nodetool -h 127.0.0.1 ring, or nodetool -h 192.168.0.103 ring, they all report connection error. </p> <p>And, I still don't understand why it doesn't work days ago(I didn't change anything today, and I'm very sure that cluster doesn't work days ago). </p> http://www.datastax.com/support-forums/topic/why-cassandras-cluster-doesnt-work#post-8384 Sun, 13 Jan 2013 15:35:45 +0000 mailme365 8384@http://www.datastax.com/support-forums/ <p>Hi All, </p> <p>I setup 4 virtual machines by virtualbox, all the four machines installed ubuntu linux server edition with Cassandra 1.2.0, and they all adopt bridge network. </p> <p>The problem I get is that these four machines could start in cluster mode when I'm working in office , but they don't work when I'm working from home. </p> <p>Since the four machines use bridge mode, the IP addresses in Company are different with those when I'm working from home. I have to change the IP addresses when I switch the ENV in cassandra.yaml configuration files in them. </p> <p>Since the ENV in company works, I only list the configuration in my home. </p> <p>Below is the list for the configuration items I changed for my home CLUSTER ENV: </p> <p>initial_token: 0 (all the four machines have different token, I use the token tool to generate token for them) </p> <p>listen_address: 192.168.0.103 (all the other machines set their own address, 192.168.0.104,192.168.105, 192.168.0.106) </p> <p> - class_name: org.apache.cassandra.locator.SimpleSeedProvider<br /> parameters:<br /> - seeds: "192.168.0.103"</p> <p>partitioner: org.apache.cassandra.dht.RandomPartitioner</p> <p>rpc_address: 0.0.0.0</p> <p>When, I startup the cassandra on these machines (I start the seed machine first), there is no error reported, however, they are running in their own local mode, whatever I created such as column family, it will be invisible to other nodes. And when I execute nodetool ring in those machines, I get error message: </p> <p>~/software/java/apache-cassandra-1.2.0/conf$ nodetool ring<br /> Failed to connect to '127.0.0.1:7199': Connection refused</p> <p>This is really weird, because when I'm working from home, after I changing the IP addresses in the cassandra.yaml file, the cluster ENV does work, does anyone could help on this? Thanks a lot! </p>