Tyler Hobbs created CASSANDRA-10134:
---------------------------------------
Summary: Always require replace_address to replace existing address
Key: CASSANDRA-10134
URL: https://issues.apache.org/jira/browse/CASSANDRA-10134
Project: Cassandra
Issue Type: Bug
Components: Core
Reporter: Tyler Hobbs
Assignee: Stefania
Fix For: 3.x, 2.1.x, 2.2.x
Normally, when a node is started from a clean state with the same address as an
existing down node, it will fail to start with an error like this:
{noformat}
ERROR [main] 2015-08-19 15:07:51,577 CassandraDaemon.java:554 - Exception
encountered during startup
java.lang.RuntimeException: A node with address /127.0.0.3 already exists,
cancelling join. Use cassandra.replace_address if you want to replace this node.
at
org.apache.cassandra.service.StorageService.checkForEndpointCollision(StorageService.java:543)
~[main/:na]
at
org.apache.cassandra.service.StorageService.prepareToJoin(StorageService.java:783)
~[main/:na]
at
org.apache.cassandra.service.StorageService.initServer(StorageService.java:720)
~[main/:na]
at
org.apache.cassandra.service.StorageService.initServer(StorageService.java:611)
~[main/:na]
at
org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:378)
[main/:na]
at
org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:537)
[main/:na]
at
org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:626)
[main/:na]
{noformat}
However, if {{auto_bootstrap}} is set to false or the node is in its own seed
list, it will not throw this error and will start normally. The new node then
takes over the host ID of the old node (even if the tokens are different), and
the only message you will see is a warning in the other nodes' logs:
{noformat}
logger.warn("Changing {}'s host ID from {} to {}", endpoint, storedId, hostId);
{noformat}
This could cause an operator to accidentally wipe out the token information for
a down node without replacing it. To fix this, we should check for an endpoint
collision even if {{auto_bootstrap}} is false or the node is a seed.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
