HDDS-667. Fix TestOzoneFileInterfaces. Contributed by Mukul Kumar Singh.

hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/impl/BlockManagerImpl.java

@@ -53,6 +53,8 @@ import static org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos.Res
 public class BlockManagerImpl implements BlockManager {
 
   static final Logger LOG = LoggerFactory.getLogger(BlockManagerImpl.class);
+  private static byte[] blockCommitSequenceIdKey =
+          DFSUtil.string2Bytes(OzoneConsts.BLOCK_COMMIT_SEQUENCE_ID_PREFIX);
 
   private Configuration config;
 
@@ -89,8 +91,6 @@ public class BlockManagerImpl implements BlockManager {
     Preconditions.checkNotNull(db, "DB cannot be null here");
 
     long blockCommitSequenceId = data.getBlockCommitSequenceId();
-    byte[] blockCommitSequenceIdKey =
-        DFSUtil.string2Bytes(OzoneConsts.BLOCK_COMMIT_SEQUENCE_ID_PREFIX);
     byte[] blockCommitSequenceIdValue = db.get(blockCommitSequenceIdKey);
 
     // default blockCommitSequenceId for any block is 0. It the putBlock

hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/MiniOzoneClusterImpl.java

@@ -35,6 +35,7 @@ import org.apache.hadoop.ozone.client.OzoneClient;
 import org.apache.hadoop.ozone.client.OzoneClientFactory;
 import org.apache.hadoop.ozone.client.rest.OzoneException;
 import org.apache.hadoop.ozone.common.Storage.StorageState;
+import org.apache.hadoop.ozone.container.common.utils.ContainerCache;
 import org.apache.hadoop.ozone.om.OMConfigKeys;
 import org.apache.hadoop.ozone.om.OzoneManager;
 import org.apache.hadoop.hdds.scm.server.SCMStorage;
@@ -283,6 +284,7 @@ public final class MiniOzoneClusterImpl implements MiniOzoneCluster {
               scm.getClientProtocolServer().getScmInfo().getClusterId()));
       stop();
       FileUtils.deleteDirectory(baseDir);
+      ContainerCache.getInstance(conf).shutdownCache();
     } catch (IOException e) {
       LOG.error("Exception while shutting down the cluster.", e);
     }