niket-goel commented on a change in pull request #10899:
URL: https://github.com/apache/kafka/pull/10899#discussion_r655512248
##########
File path:
raft/src/main/java/org/apache/kafka/raft/internals/BatchAccumulator.java
##########
@@ -233,6 +235,68 @@ public void appendLeaderChangeMessage(LeaderChangeMessage
leaderChangeMessage, l
}
}
+
+ public void appendSnapshotHeaderMessage(MetadataSnapshotHeaderRecord
snapshotHeaderRecord) {
+ appendLock.lock();
+ try {
+ // Ideally there should be nothing in the batch here.
+ // TODO verify this
+ long currentTimeMs = time.milliseconds();
+ ByteBuffer buffer = memoryPool.tryAllocate(256);
+ if (buffer != null) {
+ MemoryRecords data = MemoryRecords.withSnapshotHeaderRecord(
+ this.nextOffset,
+ currentTimeMs,
+ this.epoch,
+ buffer,
+ snapshotHeaderRecord
+ );
+ completed.add(new CompletedBatch<>(
+ nextOffset,
+ 1,
+ data,
+ memoryPool,
+ buffer
+ ));
+ nextOffset += 1;
+ } else {
+ throw new IllegalStateException("Could not allocate buffer for
the metadata snapshot header record.");
+ }
+ } finally {
+ appendLock.unlock();
+ }
+ }
+
+ public void appendSnapshotFooterMessage(MetadataSnapshotFooterRecord
snapshotFooterRecord) {
+ appendLock.lock();
+ try {
+ forceDrain();
+ long currentTimeMs = time.milliseconds();
+ ByteBuffer buffer = memoryPool.tryAllocate(256);
+ if (buffer != null) {
+ MemoryRecords data = MemoryRecords.withSnapshotFooterRecord(
+ this.nextOffset,
+ currentTimeMs,
+ this.epoch,
+ buffer,
+ snapshotFooterRecord
+ );
+ completed.add(new CompletedBatch<>(
+ nextOffset,
+ 1,
+ data,
+ memoryPool,
+ buffer
+ ));
+ nextOffset += 1;
+ } else {
+ throw new IllegalStateException("Could not allocate buffer for
the metadata snapshot footer record.");
+ }
+ } finally {
+ appendLock.unlock();
+ }
+ }
Review comment:
I agree. Let me fix that.
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