[ https://issues.apache.org/jira/browse/CASSANDRA-19497?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Caleb Rackliffe updated CASSANDRA-19497: ---------------------------------------- Reviewers: Caleb Rackliffe > ResultRetriever should batch clusterings/rows during SAI post-filtering reads > ----------------------------------------------------------------------------- > > Key: CASSANDRA-19497 > URL: https://issues.apache.org/jira/browse/CASSANDRA-19497 > Project: Cassandra > Issue Type: Improvement > Components: Feature/SAI > Reporter: Caleb Rackliffe > Assignee: Arun Ganesh > Priority: Normal > Fix For: 5.0.x, 5.x > > Attachments: heap-flamegraph.html, wall-no-parked-threads.html > > > SAI currently creates and executes a {{SinglePartitionReadCommand}} for every > {{PrimaryKey}} the index produces to read the corresponding row for > post-filtering. Informed by the limits present in the read command itself, it > should be possible to batch those reads w/ a {{ClusteringIndexNamesFilter}} > in many fewer {{SinglePartitionReadCommands}}. When we have a handful of > matches in a large partition, this seems like would involve many fewer seeks, > less unnecessary object creation, etc. -- 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