HDDS-1151. Propagate the tracing id in ScmBlockLocationProtocol.

Contributed by Elek, Marton.

hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/scm/protocol/ScmBlockLocationProtocol.java

@@ -26,6 +26,7 @@
 import org.apache.hadoop.ozone.common.BlockGroup;
 import org.apache.hadoop.ozone.common.DeleteBlockGroupResult;
 
+import java.io.Closeable;
 import java.io.IOException;
 import java.util.List;
 
@@ -34,7 +35,7 @@
  * to read/write a block.
  */
 @KerberosInfo(serverPrincipal = ScmConfigKeys.HDDS_SCM_KERBEROS_PRINCIPAL_KEY)
-public interface ScmBlockLocationProtocol {
+public interface ScmBlockLocationProtocol extends Closeable {
 
   /**
    * Asks SCM where a block should be allocated. SCM responds with the

hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/scm/protocolPB/ScmBlockLocationProtocolClientSideTranslatorPB.java

@@ -34,6 +34,7 @@
 import org.apache.hadoop.hdds.scm.container.common.helpers.AllocatedBlock;
 import org.apache.hadoop.hdds.scm.pipeline.Pipeline;
 import org.apache.hadoop.hdds.scm.protocol.ScmBlockLocationProtocol;
+import org.apache.hadoop.hdds.tracing.TracingUtil;
 import org.apache.hadoop.ipc.ProtocolTranslator;
 import org.apache.hadoop.ipc.RPC;
 import org.apache.hadoop.ozone.common.BlockGroup;
@@ -83,8 +84,13 @@ public AllocatedBlock allocateBlock(long size,
     Preconditions.checkArgument(size > 0, "block size must be greater than 0");
 
     AllocateScmBlockRequestProto request =
-        AllocateScmBlockRequestProto.newBuilder().setSize(size).setType(type)
+        AllocateScmBlockRequestProto.newBuilder()
-            .setFactor(factor).setOwner(owner).build();
+            .setSize(size)
+            .setType(type)
+            .setFactor(factor)
+            .setOwner(owner)
+            .setTraceID(TracingUtil.exportCurrentSpan())
+            .build();
     final AllocateScmBlockResponseProto response;
     try {
       response = rpcProxy.allocateScmBlock(NULL_RPC_CONTROLLER, request);
@@ -117,7 +123,9 @@ public List<DeleteBlockGroupResult> deleteKeyBlocks(
     List<KeyBlocks> keyBlocksProto = keyBlocksInfoList.stream()
         .map(BlockGroup::getProto).collect(Collectors.toList());
     DeleteScmKeyBlocksRequestProto request = DeleteScmKeyBlocksRequestProto
-        .newBuilder().addAllKeyBlocks(keyBlocksProto).build();
+        .newBuilder()
+        .addAllKeyBlocks(keyBlocksProto)
+        .build();
 
     final DeleteScmKeyBlocksResponseProto resp;
     try {

hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/protocolPB/ScmBlockLocationProtocolServerSideTranslatorPB.java

@@ -19,6 +19,8 @@
 
 import com.google.protobuf.RpcController;
 import com.google.protobuf.ServiceException;
+import io.opentracing.Scope;
+
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.hdds.scm.ScmInfo;
 import org.apache.hadoop.hdds.scm.container.common.helpers.AllocatedBlock;
@@ -37,6 +39,7 @@
     .DeleteScmKeyBlocksRequestProto;
 import org.apache.hadoop.hdds.protocol.proto.ScmBlockLocationProtocolProtos
     .DeleteScmKeyBlocksResponseProto;
+import org.apache.hadoop.hdds.tracing.TracingUtil;
 import org.apache.hadoop.ozone.common.BlockGroup;
 import org.apache.hadoop.ozone.common.DeleteBlockGroupResult;
 
@@ -69,7 +72,9 @@ public ScmBlockLocationProtocolServerSideTranslatorPB(
   public AllocateScmBlockResponseProto allocateScmBlock(
       RpcController controller, AllocateScmBlockRequestProto request)
       throws ServiceException {
-    try {
+    try (Scope scope = TracingUtil
+        .importAndCreateScope("ScmBlockLocationProtocol.allocateBlock",
+            request.getTraceID())) {
       AllocatedBlock allocatedBlock =
           impl.allocateBlock(request.getSize(), request.getType(),
               request.getFactor(), request.getOwner());

hadoop-hdds/common/src/main/proto/ScmBlockLocationProtocol.proto

@@ -41,6 +41,7 @@ message AllocateScmBlockRequestProto {
   required ReplicationType type = 2;
   required hadoop.hdds.ReplicationFactor factor = 3;
   required string owner = 4;
+  optional string traceID = 5;
 
 }
 
@@ -71,6 +72,8 @@ message KeyBlocks {
  */
 message DeleteScmKeyBlocksResponseProto {
   repeated DeleteKeyBlocksResultProto results = 1;
+  optional string traceID = 2;
+
 }
 
 /**

hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/server/SCMBlockProtocolServer.java

@@ -295,4 +295,9 @@ public AuditMessage buildAuditMessageForFailure(AuditAction op, Map<String,
         .withException(throwable)
         .build();
   }
+
+  @Override
+  public void close() throws IOException {
+    stop();
+  }
 }

hadoop-ozone/objectstore-service/src/main/java/org/apache/hadoop/hdfs/server/datanode/ObjectStoreHandler.java

@@ -20,6 +20,7 @@
 import com.sun.jersey.api.core.ApplicationAdapter;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hdds.conf.OzoneConfiguration;
+import org.apache.hadoop.hdds.scm.protocol.ScmBlockLocationProtocol;
 import org.apache.hadoop.hdds.scm.protocol.StorageContainerLocationProtocol;
 import org.apache.hadoop.hdds.scm.protocolPB.ScmBlockLocationProtocolClientSideTranslatorPB;
 import org.apache.hadoop.hdds.scm.protocolPB.ScmBlockLocationProtocolPB;
@@ -72,7 +73,7 @@ public final class ObjectStoreHandler implements Closeable {
   private final OzoneManagerProtocol ozoneManagerClient;
   private final StorageContainerLocationProtocol
       storageContainerLocationClient;
-  private final ScmBlockLocationProtocolClientSideTranslatorPB
+  private final ScmBlockLocationProtocol
       scmBlockLocationClient;
   private final StorageHandler storageHandler;
   private ClientId clientId = ClientId.randomId();
@@ -108,11 +109,13 @@ public ObjectStoreHandler(Configuration conf) throws IOException {
     InetSocketAddress scmBlockAddress =
         getScmAddressForBlockClients(conf);
     this.scmBlockLocationClient =
-        new ScmBlockLocationProtocolClientSideTranslatorPB(
+        TracingUtil.createProxy(
-            RPC.getProxy(ScmBlockLocationProtocolPB.class, scmVersion,
+            new ScmBlockLocationProtocolClientSideTranslatorPB(
-                scmBlockAddress, UserGroupInformation.getCurrentUser(), conf,
+                RPC.getProxy(ScmBlockLocationProtocolPB.class, scmVersion,
-                NetUtils.getDefaultSocketFactory(conf),
+                    scmBlockAddress, UserGroupInformation.getCurrentUser(),
-                Client.getRpcTimeout(conf)));
+                    conf, NetUtils.getDefaultSocketFactory(conf),
+                    Client.getRpcTimeout(conf))),
+            ScmBlockLocationProtocol.class);
 
     RPC.setProtocolEngine(conf, OzoneManagerProtocolPB.class,
         ProtobufRpcEngine.class);

hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/OzoneManager.java

@@ -724,7 +724,8 @@ private static ScmBlockLocationProtocol getScmBlockClient(
                 scmBlockAddress, UserGroupInformation.getCurrentUser(), conf,
                 NetUtils.getDefaultSocketFactory(conf),
                 Client.getRpcTimeout(conf)));
-    return scmBlockLocationClient;
+    return TracingUtil
+        .createProxy(scmBlockLocationClient, ScmBlockLocationProtocol.class);
   }
 
   /**

hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ScmBlockLocationTestIngClient.java

@@ -178,4 +178,9 @@ public ScmInfo getScmInfo() throws IOException {
             .setScmId(scmId);
     return builder.build();
   }
+
+  @Override
+  public void close() throws IOException {
+
+  }
 }