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https://issues.apache.org/jira/browse/CASSANDRA-7122?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brandon Williams reassigned CASSANDRA-7122:
-------------------------------------------

    Assignee: Brandon Williams

> Replacement nodes have null entries in system.peers
> ---------------------------------------------------
>
>                 Key: CASSANDRA-7122
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7122
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Richard Low
>            Assignee: Brandon Williams
>         Attachments: 7122.txt
>
>
> If a node is replaced with -Dcassandra.replace_address, the new node has 
> mostly null entries in system.peers:
> {code}
> > select * from system.peers;
>  peer      | data_center | host_id | rack | release_version | rpc_address | 
> schema_version | tokens
> -----------+-------------+---------+------+-----------------+-------------+----------------+--------------------------
>  127.0.0.3 |        null |    null | null |            null |        null |   
>         null | {'-3074457345618258602'}
> {code}
> To reproduce, simply kill a node and replace it. The entries are correctly 
> populated if the replacement node is restarted but they are never populated 
> if it isn't.
> I can think of at least two bad consequences of this:
> 1. Drivers like Datastax java-driver use the peers table to find the 
> rpc_address and location info of a node. If the entires are null it assumes 
> rpc_address=ip and the node is in the local DC.
> 2. When using GossipingPropertyFileSnitch and node won't persist the DC/rack 
> of another node so may not be able to locate it during restarts.
> I reproduced in 1.2.15 but from inspection it looks to be present in 1.2.16 
> and 2.0.7.



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