Sam Tunnicliffe created CASSANDRA-4752:
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Summary: Drop keyspace causes schema disagreement
Key: CASSANDRA-4752
URL: https://issues.apache.org/jira/browse/CASSANDRA-4752
Project: Cassandra
Issue Type: Bug
Affects Versions: 1.1.6
Reporter: Sam Tunnicliffe
The fix for CASSANDRA-4698 introduced a bug whereby when drop keyspace is
issued a schema disagreement immediately occurs. This seems to be because the
{code}
ColumnFamily cf =
ColumnFamily.create(modification.getValue().metadata());
{code}
in {{RowMutation.deserializeFixingTimestamps}} does not preserve deletion info
for the cf in the modification. In most cases, this doesn't cause a problem,
but for a drop keyspace modification, there are no columns in the cf, so the
deletion info is effectively lost leading to an incorrect digest being created
and ultimately a schema disagreement.
Replacing the {{create}} with {{cloneMeShallow}} does preserve the deletion
info and avoids the schema disagreement issue.
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