mynameborat commented on a change in pull request #1160: Transactional State
[1/5]: Added Store Checkpoint API
URL: https://github.com/apache/samza/pull/1160#discussion_r327284725
##########
File path:
samza-api/src/main/java/org/apache/samza/storage/kv/KeyValueStore.java
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@@ -141,4 +144,9 @@ default void deleteAll(List<K> keys) {
* Flushes this key-value store, if applicable.
*/
void flush();
+
+ /**
+ * Checkpoint the store snapshot.
+ */
+ Optional<Path> checkpoint(String id);
Review comment:
Sure, please you make sure we throw an exception if transactional state is
enabled w/ async commits.
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