| /* |
| * Copyright 2010 The Apache Software Foundation |
| * |
| * 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.hbase.rest.model; |
| |
| import java.io.IOException; |
| import java.io.Serializable; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import javax.xml.bind.annotation.XmlAttribute; |
| import javax.xml.bind.annotation.XmlElement; |
| import javax.xml.bind.annotation.XmlElementWrapper; |
| import javax.xml.bind.annotation.XmlRootElement; |
| |
| import org.apache.hadoop.hbase.rest.ProtobufMessageHandler; |
| import org.apache.hadoop.hbase.rest.protobuf.generated.StorageClusterStatusMessage.StorageClusterStatus; |
| import org.apache.hadoop.hbase.util.Bytes; |
| |
| import com.google.protobuf.ByteString; |
| |
| /** |
| * Representation of the status of a storage cluster: |
| * <p> |
| * <ul> |
| * <li>regions: the total number of regions served by the cluster</li> |
| * <li>requests: the total number of requests per second handled by the |
| * cluster in the last reporting interval</li> |
| * <li>averageLoad: the average load of the region servers in the cluster</li> |
| * <li>liveNodes: detailed status of the live region servers</li> |
| * <li>deadNodes: the names of region servers declared dead</li> |
| * </ul> |
| * |
| * <pre> |
| * <complexType name="StorageClusterStatus"> |
| * <sequence> |
| * <element name="liveNode" type="tns:Node" |
| * maxOccurs="unbounded" minOccurs="0"> |
| * </element> |
| * <element name="deadNode" type="string" maxOccurs="unbounded" |
| * minOccurs="0"> |
| * </element> |
| * </sequence> |
| * <attribute name="regions" type="int"></attribute> |
| * <attribute name="requests" type="int"></attribute> |
| * <attribute name="averageLoad" type="float"></attribute> |
| * </complexType> |
| * |
| * <complexType name="Node"> |
| * <sequence> |
| * <element name="region" type="tns:Region" |
| * maxOccurs="unbounded" minOccurs="0"></element> |
| * </sequence> |
| * <attribute name="name" type="string"></attribute> |
| * <attribute name="startCode" type="int"></attribute> |
| * <attribute name="requests" type="int"></attribute> |
| * <attribute name="heapSizeMB" type="int"></attribute> |
| * <attribute name="maxHeapSizeMB" type="int"></attribute> |
| * </complexType> |
| * |
| * <complexType name="Region"> |
| * <attribute name="name" type="base64Binary"></attribute> |
| * <attribute name="stores" type="int"></attribute> |
| * <attribute name="storefiles" type="int"></attribute> |
| * <attribute name="storefileSizeMB" type="int"></attribute> |
| * <attribute name="memstoreSizeMB" type="int"></attribute> |
| * <attribute name="storefileIndexSizeMB" type="int"></attribute> |
| * </complexType> |
| * </pre> |
| */ |
| @XmlRootElement(name="ClusterStatus") |
| public class StorageClusterStatusModel |
| implements Serializable, ProtobufMessageHandler { |
| private static final long serialVersionUID = 1L; |
| |
| /** |
| * Represents a region server. |
| */ |
| public static class Node { |
| |
| /** |
| * Represents a region hosted on a region server. |
| */ |
| public static class Region { |
| private byte[] name; |
| private int stores; |
| private int storefiles; |
| private int storefileSizeMB; |
| private int memstoreSizeMB; |
| private int storefileIndexSizeMB; |
| |
| /** |
| * Default constructor |
| */ |
| public Region() {} |
| |
| /** |
| * Constructor |
| * @param name the region name |
| */ |
| public Region(byte[] name) { |
| this.name = name; |
| } |
| |
| /** |
| * Constructor |
| * @param name the region name |
| * @param stores the number of stores |
| * @param storefiles the number of store files |
| * @param storefileSizeMB total size of store files, in MB |
| * @param memstoreSizeMB total size of memstore, in MB |
| * @param storefileIndexSizeMB total size of store file indexes, in MB |
| */ |
| public Region(byte[] name, int stores, int storefiles, |
| int storefileSizeMB, int memstoreSizeMB, int storefileIndexSizeMB) { |
| this.name = name; |
| this.stores = stores; |
| this.storefiles = storefiles; |
| this.storefileSizeMB = storefileSizeMB; |
| this.memstoreSizeMB = memstoreSizeMB; |
| this.storefileIndexSizeMB = storefileIndexSizeMB; |
| } |
| |
| /** |
| * @return the region name |
| */ |
| @XmlAttribute |
| public byte[] getName() { |
| return name; |
| } |
| |
| /** |
| * @return the number of stores |
| */ |
| @XmlAttribute |
| public int getStores() { |
| return stores; |
| } |
| |
| /** |
| * @return the number of store files |
| */ |
| @XmlAttribute |
| public int getStorefiles() { |
| return storefiles; |
| } |
| |
| /** |
| * @return the total size of store files, in MB |
| */ |
| @XmlAttribute |
| public int getStorefileSizeMB() { |
| return storefileSizeMB; |
| } |
| |
| /** |
| * @return memstore size, in MB |
| */ |
| @XmlAttribute |
| public int getMemstoreSizeMB() { |
| return memstoreSizeMB; |
| } |
| |
| /** |
| * @return the total size of store file indexes, in MB |
| */ |
| @XmlAttribute |
| public int getStorefileIndexSizeMB() { |
| return storefileIndexSizeMB; |
| } |
| |
| /** |
| * @param name the region name |
| */ |
| public void setName(byte[] name) { |
| this.name = name; |
| } |
| |
| /** |
| * @param stores the number of stores |
| */ |
| public void setStores(int stores) { |
| this.stores = stores; |
| } |
| |
| /** |
| * @param storefiles the number of store files |
| */ |
| public void setStorefiles(int storefiles) { |
| this.storefiles = storefiles; |
| } |
| |
| /** |
| * @param storefileSizeMB total size of store files, in MB |
| */ |
| public void setStorefileSizeMB(int storefileSizeMB) { |
| this.storefileSizeMB = storefileSizeMB; |
| } |
| |
| /** |
| * @param memstoreSizeMB memstore size, in MB |
| */ |
| public void setMemstoreSizeMB(int memstoreSizeMB) { |
| this.memstoreSizeMB = memstoreSizeMB; |
| } |
| |
| /** |
| * @param storefileIndexSizeMB total size of store file indexes, in MB |
| */ |
| public void setStorefileIndexSizeMB(int storefileIndexSizeMB) { |
| this.storefileIndexSizeMB = storefileIndexSizeMB; |
| } |
| } |
| |
| private String name; |
| private long startCode; |
| private int requests; |
| private int heapSizeMB; |
| private int maxHeapSizeMB; |
| private List<Region> regions = new ArrayList<Region>(); |
| |
| /** |
| * Add a region name to the list |
| * @param name the region name |
| */ |
| public void addRegion(byte[] name, int stores, int storefiles, |
| int storefileSizeMB, int memstoreSizeMB, int storefileIndexSizeMB) { |
| regions.add(new Region(name, stores, storefiles, storefileSizeMB, |
| memstoreSizeMB, storefileIndexSizeMB)); |
| } |
| |
| /** |
| * @param index the index |
| * @return the region name |
| */ |
| public Region getRegion(int index) { |
| return regions.get(index); |
| } |
| |
| /** |
| * Default constructor |
| */ |
| public Node() {} |
| |
| /** |
| * Constructor |
| * @param name the region server name |
| * @param startCode the region server's start code |
| */ |
| public Node(String name, long startCode) { |
| this.name = name; |
| this.startCode = startCode; |
| } |
| |
| /** |
| * @return the region server's name |
| */ |
| @XmlAttribute |
| public String getName() { |
| return name; |
| } |
| |
| /** |
| * @return the region server's start code |
| */ |
| @XmlAttribute |
| public long getStartCode() { |
| return startCode; |
| } |
| |
| /** |
| * @return the current heap size, in MB |
| */ |
| @XmlAttribute |
| public int getHeapSizeMB() { |
| return heapSizeMB; |
| } |
| |
| /** |
| * @return the maximum heap size, in MB |
| */ |
| @XmlAttribute |
| public int getMaxHeapSizeMB() { |
| return maxHeapSizeMB; |
| } |
| |
| /** |
| * @return the list of regions served by the region server |
| */ |
| @XmlElement(name="Region") |
| public List<Region> getRegions() { |
| return regions; |
| } |
| |
| /** |
| * @return the number of requests per second processed by the region server |
| */ |
| @XmlAttribute |
| public int getRequests() { |
| return requests; |
| } |
| |
| /** |
| * @param name the region server's hostname |
| */ |
| public void setName(String name) { |
| this.name = name; |
| } |
| |
| /** |
| * @param startCode the region server's start code |
| */ |
| public void setStartCode(long startCode) { |
| this.startCode = startCode; |
| } |
| |
| /** |
| * @param heapSizeMB the current heap size, in MB |
| */ |
| public void setHeapSizeMB(int heapSizeMB) { |
| this.heapSizeMB = heapSizeMB; |
| } |
| |
| /** |
| * @param maxHeapSizeMB the maximum heap size, in MB |
| */ |
| public void setMaxHeapSizeMB(int maxHeapSizeMB) { |
| this.maxHeapSizeMB = maxHeapSizeMB; |
| } |
| |
| /** |
| * @param regions a list of regions served by the region server |
| */ |
| public void setRegions(List<Region> regions) { |
| this.regions = regions; |
| } |
| |
| /** |
| * @param requests the number of requests per second processed by the |
| * region server |
| */ |
| public void setRequests(int requests) { |
| this.requests = requests; |
| } |
| } |
| |
| private List<Node> liveNodes = new ArrayList<Node>(); |
| private List<String> deadNodes = new ArrayList<String>(); |
| private int regions; |
| private int requests; |
| private double averageLoad; |
| |
| /** |
| * Add a live node to the cluster representation. |
| * @param name the region server name |
| * @param startCode the region server's start code |
| * @param heapSizeMB the current heap size, in MB |
| * @param maxHeapSizeMB the maximum heap size, in MB |
| */ |
| public Node addLiveNode(String name, long startCode, int heapSizeMB, |
| int maxHeapSizeMB) { |
| Node node = new Node(name, startCode); |
| node.setHeapSizeMB(heapSizeMB); |
| node.setMaxHeapSizeMB(maxHeapSizeMB); |
| liveNodes.add(node); |
| return node; |
| } |
| |
| /** |
| * @param index the index |
| * @return the region server model |
| */ |
| public Node getLiveNode(int index) { |
| return liveNodes.get(index); |
| } |
| |
| /** |
| * Add a dead node to the cluster representation. |
| * @param node the dead region server's name |
| */ |
| public void addDeadNode(String node) { |
| deadNodes.add(node); |
| } |
| |
| /** |
| * @param index the index |
| * @return the dead region server's name |
| */ |
| public String getDeadNode(int index) { |
| return deadNodes.get(index); |
| } |
| |
| /** |
| * Default constructor |
| */ |
| public StorageClusterStatusModel() {} |
| |
| /** |
| * @return the list of live nodes |
| */ |
| @XmlElement(name="Node") |
| @XmlElementWrapper(name="LiveNodes") |
| public List<Node> getLiveNodes() { |
| return liveNodes; |
| } |
| |
| /** |
| * @return the list of dead nodes |
| */ |
| @XmlElement(name="Node") |
| @XmlElementWrapper(name="DeadNodes") |
| public List<String> getDeadNodes() { |
| return deadNodes; |
| } |
| |
| /** |
| * @return the total number of regions served by the cluster |
| */ |
| @XmlAttribute |
| public int getRegions() { |
| return regions; |
| } |
| |
| /** |
| * @return the total number of requests per second handled by the cluster in |
| * the last reporting interval |
| */ |
| @XmlAttribute |
| public int getRequests() { |
| return requests; |
| } |
| |
| /** |
| * @return the average load of the region servers in the cluster |
| */ |
| @XmlAttribute |
| public double getAverageLoad() { |
| return averageLoad; |
| } |
| |
| /** |
| * @param nodes the list of live node models |
| */ |
| public void setLiveNodes(List<Node> nodes) { |
| this.liveNodes = nodes; |
| } |
| |
| /** |
| * @param nodes the list of dead node names |
| */ |
| public void setDeadNodes(List<String> nodes) { |
| this.deadNodes = nodes; |
| } |
| |
| /** |
| * @param regions the total number of regions served by the cluster |
| */ |
| public void setRegions(int regions) { |
| this.regions = regions; |
| } |
| |
| /** |
| * @param requests the total number of requests per second handled by the |
| * cluster |
| */ |
| public void setRequests(int requests) { |
| this.requests = requests; |
| } |
| |
| /** |
| * @param averageLoad the average load of region servers in the cluster |
| */ |
| public void setAverageLoad(double averageLoad) { |
| this.averageLoad = averageLoad; |
| } |
| |
| /* (non-Javadoc) |
| * @see java.lang.Object#toString() |
| */ |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(); |
| sb.append(String.format("%d live servers, %d dead servers, " + |
| "%.4f average load\n\n", liveNodes.size(), deadNodes.size(), |
| averageLoad)); |
| if (!liveNodes.isEmpty()) { |
| sb.append(liveNodes.size()); |
| sb.append(" live servers\n"); |
| for (Node node: liveNodes) { |
| sb.append(" "); |
| sb.append(node.name); |
| sb.append(' '); |
| sb.append(node.startCode); |
| sb.append("\n requests="); |
| sb.append(node.requests); |
| sb.append(", regions="); |
| sb.append(node.regions.size()); |
| sb.append("\n heapSizeMB="); |
| sb.append(node.heapSizeMB); |
| sb.append("\n maxHeapSizeMB="); |
| sb.append(node.maxHeapSizeMB); |
| sb.append("\n\n"); |
| for (Node.Region region: node.regions) { |
| sb.append(" "); |
| sb.append(Bytes.toString(region.name)); |
| sb.append("\n stores="); |
| sb.append(region.stores); |
| sb.append("\n storefiless="); |
| sb.append(region.storefiles); |
| sb.append("\n storefileSizeMB="); |
| sb.append(region.storefileSizeMB); |
| sb.append("\n memstoreSizeMB="); |
| sb.append(region.memstoreSizeMB); |
| sb.append("\n storefileIndexSizeMB="); |
| sb.append(region.storefileIndexSizeMB); |
| sb.append('\n'); |
| } |
| sb.append('\n'); |
| } |
| } |
| if (!deadNodes.isEmpty()) { |
| sb.append('\n'); |
| sb.append(deadNodes.size()); |
| sb.append(" dead servers\n"); |
| for (String node: deadNodes) { |
| sb.append(" "); |
| sb.append(node); |
| sb.append('\n'); |
| } |
| } |
| return sb.toString(); |
| } |
| |
| @Override |
| public byte[] createProtobufOutput() { |
| StorageClusterStatus.Builder builder = StorageClusterStatus.newBuilder(); |
| builder.setRegions(regions); |
| builder.setRequests(requests); |
| builder.setAverageLoad(averageLoad); |
| for (Node node: liveNodes) { |
| StorageClusterStatus.Node.Builder nodeBuilder = |
| StorageClusterStatus.Node.newBuilder(); |
| nodeBuilder.setName(node.name); |
| nodeBuilder.setStartCode(node.startCode); |
| nodeBuilder.setRequests(node.requests); |
| nodeBuilder.setHeapSizeMB(node.heapSizeMB); |
| nodeBuilder.setMaxHeapSizeMB(node.maxHeapSizeMB); |
| for (Node.Region region: node.regions) { |
| StorageClusterStatus.Region.Builder regionBuilder = |
| StorageClusterStatus.Region.newBuilder(); |
| regionBuilder.setName(ByteString.copyFrom(region.name)); |
| regionBuilder.setStores(region.stores); |
| regionBuilder.setStorefiles(region.storefiles); |
| regionBuilder.setStorefileSizeMB(region.storefileSizeMB); |
| regionBuilder.setMemstoreSizeMB(region.memstoreSizeMB); |
| regionBuilder.setStorefileIndexSizeMB(region.storefileIndexSizeMB); |
| nodeBuilder.addRegions(regionBuilder); |
| } |
| builder.addLiveNodes(nodeBuilder); |
| } |
| for (String node: deadNodes) { |
| builder.addDeadNodes(node); |
| } |
| return builder.build().toByteArray(); |
| } |
| |
| @Override |
| public ProtobufMessageHandler getObjectFromMessage(byte[] message) |
| throws IOException { |
| StorageClusterStatus.Builder builder = StorageClusterStatus.newBuilder(); |
| builder.mergeFrom(message); |
| if (builder.hasRegions()) { |
| regions = builder.getRegions(); |
| } |
| if (builder.hasRequests()) { |
| requests = builder.getRequests(); |
| } |
| if (builder.hasAverageLoad()) { |
| averageLoad = builder.getAverageLoad(); |
| } |
| for (StorageClusterStatus.Node node: builder.getLiveNodesList()) { |
| long startCode = node.hasStartCode() ? node.getStartCode() : -1; |
| StorageClusterStatusModel.Node nodeModel = |
| addLiveNode(node.getName(), startCode, node.getHeapSizeMB(), |
| node.getMaxHeapSizeMB()); |
| int requests = node.hasRequests() ? node.getRequests() : 0; |
| nodeModel.setRequests(requests); |
| for (StorageClusterStatus.Region region: node.getRegionsList()) { |
| nodeModel.addRegion( |
| region.getName().toByteArray(), |
| region.getStores(), |
| region.getStorefiles(), |
| region.getStorefileSizeMB(), |
| region.getMemstoreSizeMB(), |
| region.getStorefileIndexSizeMB()); |
| } |
| } |
| for (String node: builder.getDeadNodesList()) { |
| addDeadNode(node); |
| } |
| return this; |
| } |
| } |