Abe Ratnofsky created CASSANDRA-20360:
-----------------------------------------
Summary: Improve performance of DistributedSchema.validate for
large schemas
Key: CASSANDRA-20360
URL: https://issues.apache.org/jira/browse/CASSANDRA-20360
Project: Apache Cassandra
Issue Type: Improvement
Components: Transactional Cluster Metadata
Reporter: Abe Ratnofsky
Assignee: Abe Ratnofsky
Currently DistributedSchema validates on every instantiation:
[https://github.com/apache/cassandra/blob/486a6276034df40f8ac0ec9bd1d1f727b39f62c7/src/java/org/apache/cassandra/schema/DistributedSchema.java#L405]
Keyspaces.forEach delegates to AbstractBTreeMap.values, which copies the array:
[https://github.com/apache/cassandra/blob/486a6276034df40f8ac0ec9bd1d1f727b39f62c7/src/java/org/apache/cassandra/utils/btree/AbstractBTreeMap.java#L109]
This can be fixed by having AbstractBTreeMap.values return a view instead of a
copy. Patch is available, preparing to push.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
