We have a 3 node Cassandra cluster (version 2.2.0). Two of the nodes are in one 
subnet and third one in different subnet.

Replication factor is 2 and two of the nodes are seed nodes. Consistency level 
for everything is QUORUM.

We are getting the following warning:

WARN com.datastax.driver.core.Cluster - No schema agreement from live replicas 
after 30 s. The schema may not be up to date on some nodes.

I made sure that the clocks are in-sync.

I then ran cleanup, repair and compact but that solves the problem only for 
couple of days, the warning then comes back.

We were seeing this issue in 2.1.0 but stopped seeing it in 2.1.4 and 2.1.6. 
But this came back in version 2.2.0.

Anyone has any idea on how to fix this problem?

Just FYI: We do a lot of schema creation and deletion on Cassandra (basically 
our CI pipeline does that), if that has anything to do with it.

Thanks,
Saurabh

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