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From "Jeff Jirsa (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-8274) Node fails to rejoin cluster on EC2 if private IP is changed
Date Fri, 22 Sep 2017 00:29:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-8274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16175724#comment-16175724
] 

Jeff Jirsa commented on CASSANDRA-8274:
---------------------------------------

Is this still an issue, or has it been resolved in the past 3 years?


> Node fails to rejoin cluster on EC2 if private IP is changed
> ------------------------------------------------------------
>
>                 Key: CASSANDRA-8274
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8274
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Distributed Metadata
>         Environment: Amazon EC2
>            Reporter: Joseph Clark
>            Priority: Minor
>             Fix For: 3.11.x
>
>
> Nodes in Amazon AWS EC2 Classic (not a VPC) may be assigned a new private IP if the node
is stopped and then started again. In this case we have puppet update the configured listen_address
to the new private IP. However, once the cassandra service starts, it is unable to communicate
with the existing nodes(single region) and vice versa.
> 'nodetool status' shows that each node believes that it is 'UN' and the other node is
'DN'.
> 'nodetool gossipinfo' on the node that remained running shows the *old* private IP listed
as the 'INTERNAL_IP' of the node that was stopped and restarted. 
> The situation is resolved by restarting the cassandra service on the node that remained
running. Once it has restarted, the INTERNAL_IP is correctly updated to the new private IP.
'nodetool status' shows that both nodes are up and the cluster appears to function normally.
> This appears to me to be the root cause of https://issues.apache.org/jira/browse/CASSANDRA-7292.
-Possibly https://issues.apache.org/jira/browse/CASSANDRA-8072 as well, but I am not convinced
they are actually duplicates.-



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