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HDDS-10514. Recon - Provide DN decommissioning detailed status and in…
…fo inline with current CLI command output. (#6376)
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hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/client/DecommissionUtils.java
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| /* | ||
| * 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 | ||
| * <p> | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * <p> | ||
| * 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. | ||
| */ | ||
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| package org.apache.hadoop.hdds.client; | ||
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| import com.fasterxml.jackson.core.JsonFactory; | ||
| import com.fasterxml.jackson.core.JsonParser; | ||
| import com.fasterxml.jackson.databind.JsonNode; | ||
| import com.fasterxml.jackson.databind.ObjectMapper; | ||
| import com.google.common.base.Strings; | ||
| import jakarta.annotation.Nullable; | ||
| import org.apache.hadoop.hdds.annotation.InterfaceAudience; | ||
| import org.apache.hadoop.hdds.annotation.InterfaceStability; | ||
| import org.apache.hadoop.hdds.protocol.DatanodeDetails; | ||
| import org.apache.hadoop.hdds.protocol.proto.HddsProtos; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| import java.io.IOException; | ||
| import java.text.DateFormat; | ||
| import java.text.SimpleDateFormat; | ||
| import java.util.Date; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.stream.Collectors; | ||
| import java.util.stream.Stream; | ||
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| /** | ||
| * Decommission specific stateless utility functions. | ||
| */ | ||
| @InterfaceAudience.Private | ||
| @InterfaceStability.Stable | ||
| public final class DecommissionUtils { | ||
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| private static final Logger LOG = LoggerFactory.getLogger(DecommissionUtils.class); | ||
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| private DecommissionUtils() { | ||
| } | ||
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| /** | ||
| * Returns the list of uuid or ipAddress matching decommissioning status nodes. | ||
| * | ||
| * @param allNodes All datanodes which are in decommissioning status. | ||
| * @param uuid node uuid. | ||
| * @param ipAddress node ipAddress | ||
| * @return the list of uuid or ipAddress matching decommissioning status nodes. | ||
| */ | ||
| public static List<HddsProtos.Node> getDecommissioningNodesList(Stream<HddsProtos.Node> allNodes, | ||
| String uuid, | ||
| String ipAddress) { | ||
| List<HddsProtos.Node> decommissioningNodes; | ||
| if (!Strings.isNullOrEmpty(uuid)) { | ||
| decommissioningNodes = allNodes.filter(p -> p.getNodeID().getUuid() | ||
| .equals(uuid)).collect(Collectors.toList()); | ||
| } else if (!Strings.isNullOrEmpty(ipAddress)) { | ||
| decommissioningNodes = allNodes.filter(p -> p.getNodeID().getIpAddress() | ||
| .compareToIgnoreCase(ipAddress) == 0).collect(Collectors.toList()); | ||
| } else { | ||
| decommissioningNodes = allNodes.collect(Collectors.toList()); | ||
| } | ||
| return decommissioningNodes; | ||
| } | ||
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| /** | ||
| * Returns Json node of datanode metrics. | ||
| * | ||
| * @param metricsJson | ||
| * @return Json node of datanode metrics | ||
| * @throws IOException | ||
| */ | ||
| public static JsonNode getBeansJsonNode(String metricsJson) throws IOException { | ||
| JsonNode jsonNode; | ||
| ObjectMapper objectMapper = new ObjectMapper(); | ||
| JsonFactory factory = objectMapper.getFactory(); | ||
| JsonParser parser = factory.createParser(metricsJson); | ||
| jsonNode = (JsonNode) objectMapper.readTree(parser).get("beans").get(0); | ||
| return jsonNode; | ||
| } | ||
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| /** | ||
| * Returns the number of decommissioning nodes. | ||
| * | ||
| * @param jsonNode | ||
| * @return | ||
| */ | ||
| public static int getNumDecomNodes(JsonNode jsonNode) { | ||
| int numDecomNodes; | ||
| JsonNode totalDecom = jsonNode.get("DecommissioningMaintenanceNodesTotal"); | ||
| numDecomNodes = (totalDecom == null ? -1 : Integer.parseInt(totalDecom.toString())); | ||
| return numDecomNodes; | ||
| } | ||
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| /** | ||
| * Returns the counts of following info attributes. | ||
| * - decommissionStartTime | ||
| * - numOfUnclosedPipelines | ||
| * - numOfUnderReplicatedContainers | ||
| * - numOfUnclosedContainers | ||
| * | ||
| * @param datanode | ||
| * @param counts | ||
| * @param numDecomNodes | ||
| * @param countsMap | ||
| * @param errMsg | ||
| * @return | ||
| * @throws IOException | ||
| */ | ||
| @Nullable | ||
| public static Map<String, Object> getCountsMap(DatanodeDetails datanode, JsonNode counts, int numDecomNodes, | ||
| Map<String, Object> countsMap, String errMsg) | ||
| throws IOException { | ||
| for (int i = 1; i <= numDecomNodes; i++) { | ||
| if (datanode.getHostName().equals(counts.get("tag.datanode." + i).asText())) { | ||
| JsonNode pipelinesDN = counts.get("PipelinesWaitingToCloseDN." + i); | ||
| JsonNode underReplicatedDN = counts.get("UnderReplicatedDN." + i); | ||
| JsonNode unclosedDN = counts.get("UnclosedContainersDN." + i); | ||
| JsonNode startTimeDN = counts.get("StartTimeDN." + i); | ||
| if (pipelinesDN == null || underReplicatedDN == null || unclosedDN == null || startTimeDN == null) { | ||
| throw new IOException(errMsg); | ||
| } | ||
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| int pipelines = Integer.parseInt(pipelinesDN.toString()); | ||
| double underReplicated = Double.parseDouble(underReplicatedDN.toString()); | ||
| double unclosed = Double.parseDouble(unclosedDN.toString()); | ||
| long startTime = Long.parseLong(startTimeDN.toString()); | ||
| Date date = new Date(startTime); | ||
| DateFormat formatter = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss z"); | ||
| countsMap.put("decommissionStartTime", formatter.format(date)); | ||
| countsMap.put("numOfUnclosedPipelines", pipelines); | ||
| countsMap.put("numOfUnderReplicatedContainers", underReplicated); | ||
| countsMap.put("numOfUnclosedContainers", unclosed); | ||
| return countsMap; | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
| } |
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