Revert "HDDS-242. Introduce NEW_NODE, STALE_NODE and DEAD_NODE event"

This reverts commit a47ec5dac4a1cdfec788ce3296b4f610411911ea.
There was a spurious file in this commit. Revert to clean it.

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

@@ -1,47 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.hadoop.hdds.scm.container;
-
-import org.apache.hadoop.hdds.scm.node.states.Node2ContainerMap;
-import org.apache.hadoop.hdds.scm.server.SCMDatanodeHeartbeatDispatcher
-    .ContainerReportFromDatanode;
-import org.apache.hadoop.hdds.server.events.EventHandler;
-import org.apache.hadoop.hdds.server.events.EventPublisher;
-
-/**
- * Handles container reports from datanode.
- */
-public class ContainerReportHandler implements
-    EventHandler<ContainerReportFromDatanode> {
-
-  private final Mapping containerMapping;
-  private final Node2ContainerMap node2ContainerMap;
-
-  public ContainerReportHandler(Mapping containerMapping,
-                                Node2ContainerMap node2ContainerMap) {
-    this.containerMapping = containerMapping;
-    this.node2ContainerMap = node2ContainerMap;
-  }
-
-  @Override
-  public void onMessage(ContainerReportFromDatanode containerReportFromDatanode,
-                        EventPublisher publisher) {
-    // TODO: process container report.
-  }
-}

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

@@ -1,42 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.hadoop.hdds.scm.node;
-
-import org.apache.hadoop.hdds.protocol.DatanodeDetails;
-import org.apache.hadoop.hdds.scm.node.states.Node2ContainerMap;
-import org.apache.hadoop.hdds.server.events.EventHandler;
-import org.apache.hadoop.hdds.server.events.EventPublisher;
-
-/**
- * Handles Dead Node event.
- */
-public class DeadNodeHandler implements EventHandler<DatanodeDetails> {
-
-  private final Node2ContainerMap node2ContainerMap;
-
-  public DeadNodeHandler(Node2ContainerMap node2ContainerMap) {
-    this.node2ContainerMap = node2ContainerMap;
-  }
-
-  @Override
-  public void onMessage(DatanodeDetails datanodeDetails,
-                        EventPublisher publisher) {
-    //TODO: add logic to handle dead node.
-  }
-}

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

@@ -1,50 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.hadoop.hdds.scm.node;
-
-import org.apache.hadoop.hdds.protocol.DatanodeDetails;
-import org.apache.hadoop.hdds.scm.exceptions.SCMException;
-import org.apache.hadoop.hdds.scm.node.states.Node2ContainerMap;
-import org.apache.hadoop.hdds.server.events.EventHandler;
-import org.apache.hadoop.hdds.server.events.EventPublisher;
-
-import java.util.Collections;
-
-/**
- * Handles New Node event.
- */
-public class NewNodeHandler implements EventHandler<DatanodeDetails> {
-
-  private final Node2ContainerMap node2ContainerMap;
-
-  public NewNodeHandler(Node2ContainerMap node2ContainerMap) {
-    this.node2ContainerMap = node2ContainerMap;
-  }
-
-  @Override
-  public void onMessage(DatanodeDetails datanodeDetails,
-                        EventPublisher publisher) {
-    try {
-      node2ContainerMap.insertNewDatanode(datanodeDetails.getUuid(),
-          Collections.emptySet());
-    } catch (SCMException e) {
-      // TODO: log exception message.
-    }
-  }
-}

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

@@ -1,42 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.hadoop.hdds.scm.node;
-
-import org.apache.hadoop.hdds.scm.server.SCMDatanodeHeartbeatDispatcher
-    .NodeReportFromDatanode;
-import org.apache.hadoop.hdds.server.events.EventHandler;
-import org.apache.hadoop.hdds.server.events.EventPublisher;
-
-/**
- * Handles Node Reports from datanode.
- */
-public class NodeReportHandler implements EventHandler<NodeReportFromDatanode> {
-
-  private final NodeManager nodeManager;
-
-  public NodeReportHandler(NodeManager nodeManager) {
-    this.nodeManager = nodeManager;
-  }
-
-  @Override
-  public void onMessage(NodeReportFromDatanode nodeReportFromDatanode,
-                        EventPublisher publisher) {
-    //TODO: process node report.
-  }
-}

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

@@ -1,42 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.hadoop.hdds.scm.node;
-
-import org.apache.hadoop.hdds.protocol.DatanodeDetails;
-import org.apache.hadoop.hdds.scm.node.states.Node2ContainerMap;
-import org.apache.hadoop.hdds.server.events.EventHandler;
-import org.apache.hadoop.hdds.server.events.EventPublisher;
-
-/**
- * Handles Stale node event.
- */
-public class StaleNodeHandler implements EventHandler<DatanodeDetails> {
-
-  private final Node2ContainerMap node2ContainerMap;
-
-  public StaleNodeHandler(Node2ContainerMap node2ContainerMap) {
-    this.node2ContainerMap = node2ContainerMap;
-  }
-
-  @Override
-  public void onMessage(DatanodeDetails datanodeDetails,
-                        EventPublisher publisher) {
-    //TODO: logic to handle stale node.
-  }
-}

hadoop-ozone/common/src/main/bin/ozone-config.sh

@@ -1,51 +0,0 @@
-#!/usr/bin/env bash
-
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# included in all the ozone scripts with source command
-# should not be executed directly
-
-function hadoop_subproject_init
-{
-  if [[ -z "${HADOOP_OZONE_ENV_PROCESSED}" ]]; then
-    if [[ -e "${HADOOP_CONF_DIR}/hdfs-env.sh" ]]; then
-      . "${HADOOP_CONF_DIR}/hdfs-env.sh"
-      export HADOOP_OZONES_ENV_PROCESSED=true
-    fi
-  fi
-  HADOOP_OZONE_HOME="${HADOOP_OZONE_HOME:-$HADOOP_HOME}"
-
-}
-
-if [[ -z "${HADOOP_LIBEXEC_DIR}" ]]; then
-  _hd_this="${BASH_SOURCE-$0}"
-  HADOOP_LIBEXEC_DIR=$(cd -P -- "$(dirname -- "${_hd_this}")" >/dev/null && pwd -P)
-fi
-
-# shellcheck source=./hadoop-common-project/hadoop-common/src/main/bin/hadoop-config.sh
-
-if [[ -n "${HADOOP_COMMON_HOME}" ]] &&
-   [[ -e "${HADOOP_COMMON_HOME}/libexec/hadoop-config.sh" ]]; then
-  . "${HADOOP_COMMON_HOME}/libexec/hadoop-config.sh"
-elif [[ -e "${HADOOP_LIBEXEC_DIR}/hadoop-config.sh" ]]; then
-  . "${HADOOP_LIBEXEC_DIR}/hadoop-config.sh"
-elif [ -e "${HADOOP_HOME}/libexec/hadoop-config.sh" ]; then
-  . "${HADOOP_HOME}/libexec/hadoop-config.sh"
-else
-  echo "ERROR: Hadoop common not found." 2>&1
-  exit 1
-fi
-