Fix bugs.

Change-Id: Iedb11b51244968ff4f7c147301af266f926759e4

Author: jojochuang

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

@@ -96,7 +96,7 @@ public SCMStateMachine(final StorageContainerManager scm,
     this.scm = scm;
     this.handlers = new EnumMap<>(RequestType.class);
     this.transactionBuffer = buffer;
-    this.metrics = StorageContainerManager.getMetrics();
+    this.metrics = scm.getMetrics();
     TransactionInfo latestTrxInfo = this.transactionBuffer.getLatestTrxInfo();
     if (!latestTrxInfo.isDefault()) {
       updateLastAppliedTermIndex(latestTrxInfo.getTerm(),

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

@@ -25,7 +25,6 @@
 import static org.apache.hadoop.hdds.scm.exceptions.SCMException.ResultCodes.IO_EXCEPTION;
 import static org.apache.hadoop.hdds.scm.net.NetConstants.NODE_COST_DEFAULT;
 import static org.apache.hadoop.hdds.scm.net.NetConstants.ROOT;
-import static org.apache.hadoop.hdds.scm.server.StorageContainerManager.getPerfMetrics;
 import static org.apache.hadoop.hdds.scm.server.StorageContainerManager.startRpcServer;
 import static org.apache.hadoop.hdds.server.ServerUtils.getRemoteUserName;
 import static org.apache.hadoop.hdds.server.ServerUtils.updateRPCListenAddress;
@@ -108,7 +107,7 @@ public class SCMBlockProtocolServer implements
   public SCMBlockProtocolServer(OzoneConfiguration conf,
       StorageContainerManager scm) throws IOException {
     this.scm = scm;
-    this.perfMetrics = getPerfMetrics();
+    this.perfMetrics = scm.getPerfMetrics();
     final int handlerCount = conf.getInt(OZONE_SCM_BLOCK_HANDLER_COUNT_KEY,
         OZONE_SCM_HANDLER_COUNT_KEY, OZONE_SCM_HANDLER_COUNT_DEFAULT,
             LOG::info);

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

@@ -226,8 +226,8 @@ public final class StorageContainerManager extends ServiceRuntimeInfoImpl
   /**
    * SCM metrics.
    */
-  private static SCMMetrics metrics;
-  private static SCMPerformanceMetrics perfMetrics;
+  private SCMMetrics metrics;
+  private SCMPerformanceMetrics perfMetrics;
   private SCMHAMetrics scmHAMetrics;
   private final NettyMetrics nettyMetrics;
 
@@ -1434,21 +1434,21 @@ public void initMetrics() {
   /**
    * Return SCM metrics instance.
    */
-  public static SCMMetrics getMetrics() {
+  public SCMMetrics getMetrics() {
     return metrics;
   }
 
   /**
    * Initialize SCMPerformance metrics.
    */
-  public static void initPerfMetrics() {
+  public void initPerfMetrics() {
     perfMetrics = SCMPerformanceMetrics.create();
   }
 
   /**
    * Return SCMPerformance metrics instance.
    */
-  public static SCMPerformanceMetrics getPerfMetrics() {
+  public SCMPerformanceMetrics getPerfMetrics() {
     return perfMetrics == null ? SCMPerformanceMetrics.create() : perfMetrics;
   }
 

hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/hdds/scm/TestSCMDbCheckpointServlet.java

@@ -87,7 +87,7 @@ public void init() throws Exception {
         .build();
     cluster.waitForClusterToBeReady();
     StorageContainerManager scm = cluster.getStorageContainerManager();
-    scmMetrics = StorageContainerManager.getMetrics();
+    scmMetrics = scm.getMetrics();
 
     requestMock = mock(HttpServletRequest.class);
     when(requestMock.getParameter(OZONE_DB_CHECKPOINT_REQUEST_FLUSH))

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

@@ -188,7 +188,6 @@ public class TestSnapshotDiffManager {
   private final List<String> snapshotNames = new ArrayList<>();
   private final List<SnapshotInfo> snapshotInfoList = new ArrayList<>();
   private final List<SnapshotDiffJob> snapDiffJobs = new ArrayList<>();
-  private OMMetrics omMetrics;
   @TempDir
   private File dbDir;
   @Mock
@@ -230,7 +229,7 @@ public void init() throws RocksDBException, IOException, ExecutionException {
     ExitUtil.disableSystemExit();
 
     OzoneConfiguration conf = new OzoneConfiguration();
-    omMetrics = OMMetrics.create(conf);
+    OMMetrics omMetrics = OMMetrics.create(conf);
 
     dbOptions = new ManagedDBOptions();
     dbOptions.setCreateIfMissing(true);