[ https://issues.apache.org/jira/browse/KAFKA-9445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Navinder Brar updated KAFKA-9445: --------------------------------- Labels: https://cwiki.apache.org/confluence/display/KAFKA/KIP-562%3A+Allow+fetching+a+key+from+a+single+partition+rather+than+iterating+over+all+the+stores+on+an+instance (was: ) > Allow fetching a key from a single partition rather than iterating over all > the stores on an instance > ----------------------------------------------------------------------------------------------------- > > Key: KAFKA-9445 > URL: https://issues.apache.org/jira/browse/KAFKA-9445 > Project: Kafka > Issue Type: New Feature > Components: streams > Reporter: Navinder Brar > Assignee: Navinder Brar > Priority: Major > Labels: > https://cwiki.apache.org/confluence/display/KAFKA/KIP-562%3A+Allow+fetching+a+key+from+a+single+partition+rather+than+iterating+over+all+the+stores+on+an+instance > > Whenever a call is made to get a particular key from a Kafka Streams > instance, currently it returns a Queryable store that contains a list of the > stores for all the running and restoring/replica(with KIP-535) on the > instance via StreamThreadStateStoreProvider#stores(). This list of stores is > then provided to CompositeReadOnlyKeyValueStore#get() which looks into each > store one by one. With the changes that went in as a part of KIP-535 since we > have access to the information that a key belongs to which partition, we > should have a capability to fetch store for that particular partition and > look for key in store for that partition only. It would be a good improvement > for improving latencies for applications that contain multiple partitions on > a single instance and don't have bloom filters enabled internally for Rocksdb. -- This message was sent by Atlassian Jira (v8.3.4#803005)