[ 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)