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https://issues.apache.org/jira/browse/CASSANDRA-5025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15764515#comment-15764515
 ] 

Pavel S. commented on CASSANDRA-5025:
-------------------------------------

Hi,

Looks like that the issue has not been resolved. 

I've just got this:

{code}
15:52:40.194 [cluster1-nio-worker-1] WARN  c.d.driver.core.RequestHandler - 
/127.0.0.1:9042 replied with server error (java.lang.RuntimeException: 
java.util.concurrent.ExecutionException: 
org.apache.cassandra.exceptions.ConfigurationException: Column family ID 
mismatch (found 5230d9a0-c6cc-11e6-9ece-6d2c86545d91; expected 
51d06a20-c6cc-11e6-9ece-6d2c86545d91)), defuncting connection.
{code}

On C* 3.9:

{code}
[cqlsh 5.0.1 | Cassandra 3.9 | CQL spec 3.4.2 | Native protocol v4]
Use HELP for help.
cqlsh>
{code}

with latest driver: "com.datastax.cassandra" % "cassandra-driver-core" % 
"3.1.2"}}}

> Schema push/pull race
> ---------------------
>
>                 Key: CASSANDRA-5025
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5025
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 1.1.0
>            Reporter: Jonathan Ellis
>            Assignee: Jonathan Ellis
>            Priority: Minor
>             Fix For: 1.1.8
>
>         Attachments: 5025-v2.txt, 5025-v3.txt, 5025-v4.txt, 5025-v5.txt, 
> 5025.txt
>
>
> When a schema change is made, the coordinator pushes the delta to the other 
> nodes in the cluster.  This is more efficient than sending the entire schema. 
>  But the coordinator also announces the new schema version, so the other 
> nodes' reception of the new version races with processing the delta, and 
> usually seeing the new schema wins.  So the other nodes also issue a pull to 
> the coordinator for the entire schema.
> Thus, schema changes tend to become O(n) in the number of KS and CF present.



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