ChenSammi commented on code in PR #6613:
URL: https://github.com/apache/ozone/pull/6613#discussion_r1867351366
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hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/KeyValueHandler.java:
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@@ -1345,6 +1349,114 @@ public void deleteUnreferenced(Container container,
long localID)
}
}
+ @Override
+ public ContainerCommandResponseProto streamDataReadOnly(
+ ContainerCommandRequestProto request, KeyValueContainer kvContainer,
+ DispatcherContext dispatcherContext,
+ StreamObserver<ContainerCommandResponseProto> streamObserver) {
+ ContainerCommandResponseProto responseProto = null;
+ try {
+ if (!request.hasReadBlock()) {
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("Malformed Read Block request. trace ID: {}",
+ request.getTraceID());
+ }
+ return malformedRequest(request);
+ }
+ ReadBlockRequestProto readBlock = request.getReadBlock();
+
+ BlockID blockID = BlockID.getFromProtobuf(
+ readBlock.getBlockID());
+ // This is a new api the block should always be checked.
+ BlockUtils.verifyReplicaIdx(kvContainer, blockID);
+ BlockUtils.verifyBCSId(kvContainer, blockID);
+
+ BlockData blockData = getBlockManager().getBlock(kvContainer, blockID);
+ List<ContainerProtos.ChunkInfo> chunkInfos = blockData.getChunks();
+ long blockOffset = 0;
+ int chunkIndex = -1;
+ long chunkOffset = 0;
+ long offset = readBlock.getOffset();
+ for (int i = 0; i < chunkInfos.size(); i++) {
+ final long chunkLen = chunkInfos.get(i).getLen();
+ blockOffset += chunkLen;
+ if (blockOffset > offset) {
+ chunkIndex = i;
+ chunkOffset = offset - blockOffset + chunkLen;
+ break;
+ }
+ }
+ Preconditions.checkState(chunkIndex >= 0);
+
+ if (dispatcherContext == null) {
+ dispatcherContext = DispatcherContext.getHandleReadBlock();
+ }
+
+ ChunkBuffer data;
+
+ long len = readBlock.getLen();
+ long adjustedChunkOffset, adjustedChunkLen;
+ do {
+ ContainerProtos.ChunkInfo chunk = chunkInfos.get(chunkIndex);
+ if (readBlock.getVerifyChecksum()) {
Review Comment:
This verifyChecksum is used to decide whether offset need be adjusted. Why
not do this check and adjust on client side?
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