Robert Stupp created CASSANDRA-7679: ---------------------------------------
Summary: Batch DDL Key: CASSANDRA-7679 URL: https://issues.apache.org/jira/browse/CASSANDRA-7679 Project: Cassandra Issue Type: Improvement Reporter: Robert Stupp Just an idea: To improve speed of DDL in clusters with lots of Keyspaces/Tables/Columns it might help to collect a bunch of schema changes and propagate them as a single bunch of changes. Such a DDL batch would # execute DDLs locally and collect all mutations # broadcast all mutations at once # schema agreement # return list<SchemaChange> via native protocol to the client So {{DefsTables.mergeSchemaInternal}} (which seems to be the expensive part) would only execute once per DDL batch on each node. DDL batches would not be atomic. -- This message was sent by Atlassian JIRA (v6.2#6252)