showuon commented on a change in pull request #11242:
URL: https://github.com/apache/kafka/pull/11242#discussion_r692947020
##########
File path: streams/src/main/java/org/apache/kafka/streams/StreamsConfig.java
##########
@@ -387,6 +389,12 @@
public static final String
DEFAULT_PRODUCTION_EXCEPTION_HANDLER_CLASS_CONFIG =
"default.production.exception.handler";
private static final String DEFAULT_PRODUCTION_EXCEPTION_HANDLER_CLASS_DOC
= "Exception handling class that implements the
<code>org.apache.kafka.streams.errors.ProductionExceptionHandler</code>
interface.";
+ /** {@code default.store.impl.class} */
+ @SuppressWarnings("WeakerAccess")
+ public static final String DEFAULT_STORE_IMPLEMENTATION_CLASS_CONFIG =
"default.store.impl.class";
+ private static final String DEFAULT_STORE_IMPLEMENTATION_CLASS_DOC =
"Store supplier implementation class to use. Default is set as
RocksDBStoreImplementation. " +
+ "It can be overwritten dynamically during streaming operation.";
Review comment:
(1) create a stream config: default.store.impl.class to store the
default store implementation class, and default to RocksDB
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