jojochuang commented on a change in pull request #2919:
URL: https://github.com/apache/ozone/pull/2919#discussion_r779264201
##########
File path:
hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/client/HddsClientUtils.java
##########
@@ -301,4 +320,46 @@ public static RetryPolicy createRetryPolicy(int
maxRetryCount,
public static List<Class<? extends Exception>> getExceptionList() {
return EXCEPTION_LIST;
}
+
+ /**
+ * Send RPC call to get the block info from the container.
+ * @return List of chunks in this block.
+ */
+ public static List<ContainerProtos.ChunkInfo> getChunkInfos(Pipeline
pipeline,
+ BlockID blockID, Token<OzoneBlockTokenIdentifier> token,
+ XceiverClientFactory xceiverClientFactory, XceiverClientSpi xceiverClient
+ ) throws IOException {
+ // irrespective of the container state, we will always read via Standalone
+ // protocol.
+ if (pipeline.getType() != HddsProtos.ReplicationType.STAND_ALONE) {
+ pipeline = Pipeline.newBuilder(pipeline)
+ .setReplicationConfig(new StandaloneReplicationConfig(
+ ReplicationConfig
+ .getLegacyFactor(pipeline.getReplicationConfig())))
+ .build();
+ }
+ xceiverClient = xceiverClientFactory.acquireClientForReadData(pipeline);
+ boolean success = false;
+ List<ContainerProtos.ChunkInfo> chunks;
+ try {
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("Sending request to get key to access {}",
+ blockID.getContainerID());
+ }
+
+ ContainerProtos.DatanodeBlockID datanodeBlockID = blockID
+ .getDatanodeBlockIDProtobuf();
+ ContainerProtos.GetBlockResponseProto response = ContainerProtocolCalls
+ .getBlock(xceiverClient, datanodeBlockID, token);
+
+ chunks = response.getBlockData().getChunksList();
+ success = true;
+ } finally {
+ if (!success) {
Review comment:
for BlockInputStream, this is not a problem because it checks and
xceiverClient is released when the input stream is closed. File checksum
computer will want to release it properly though.
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