Paulo Motta created CASSANDRA-18111: ---------------------------------------
Summary: Cache snapshots in memory Key: CASSANDRA-18111 URL: https://issues.apache.org/jira/browse/CASSANDRA-18111 Project: Cassandra Issue Type: Improvement Reporter: Paulo Motta Assignee: Paulo Motta Everytime {{nodetool listsnapshots}} is called, all data directories are scanned to find snapshots, what is inefficient. For example, fetching the {{org.apache.cassandra.metrics:type=ColumnFamily,name=SnapshotsSize}} metric can take half a second (CASSANDRA-13338). This improvement will also allow snapshots to be efficiently queried via virtual tables (CASSANDRA-18102). In order to do this, we should: a) load all snapshots from disk during initialization b) keep a collection of snapshots on {{SnapshotManager}} c) update the snapshots collection anytime a new snapshot is taken or cleared d) detect when a snapshot is manually removed from disk. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org