jsancio commented on a change in pull request #9512:
URL: https://github.com/apache/kafka/pull/9512#discussion_r533835857
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File path: raft/src/main/java/org/apache/kafka/raft/ReplicatedLog.java
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@@ -149,6 +152,29 @@ default OptionalLong truncateToEndOffset(OffsetAndEpoch
endOffset) {
return OptionalLong.of(truncationOffset);
}
+ /**
+ * Create a writable snapshot for the given snapshot id.
+ *
+ * See {@link RawSnapshotWriter} for details on how to use this object.
+ *
+ * @param snapshotId the end offset and epoch that identifies the snapshot
+ * @return a writable snapshot
+ */
+ RawSnapshotWriter createSnapshot(OffsetAndEpoch snapshotId) throws
IOException;
Review comment:
Yeah. I think we will need that when we implement deleting snapshot. Do
you mind if I add this later?
Also, I think we are going to need a `readLatestSnapshot()` when the state
machine (controller or broker) needs to load the latest valid snapshot. I was
planning to add this later when the case was clear to me.
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