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HBASE-27567 Introduce ChaosMonkey Action to print HDFS Cluster status
Signed-off-by: Reid Chan <reidchan@apache.org> Signed-off-by: Duo Zhang <zhangduo@apache.org>
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...e-it/src/test/java/org/apache/hadoop/hbase/chaos/actions/DumpHdfsClusterStatusAction.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 | ||
| * | ||
| * 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.chaos.actions; | ||
|
|
||
| import java.net.InetSocketAddress; | ||
| import java.net.URI; | ||
| import java.util.List; | ||
| import org.apache.commons.io.FileUtils; | ||
| import org.apache.hadoop.conf.Configuration; | ||
| import org.apache.hadoop.hdfs.DistributedFileSystem; | ||
| import org.apache.hadoop.hdfs.HAUtil; | ||
| import org.apache.hadoop.hdfs.HAUtilClient; | ||
| import org.apache.hadoop.hdfs.protocol.ClientProtocol; | ||
| import org.apache.hadoop.hdfs.protocol.DatanodeInfo; | ||
| import org.apache.hadoop.hdfs.protocol.HdfsConstants; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
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| public class DumpHdfsClusterStatusAction extends Action { | ||
| private static final Logger LOG = LoggerFactory.getLogger(DumpHdfsClusterStatusAction.class); | ||
| private static final String PREFIX = "\n "; | ||
|
|
||
| @Override | ||
| protected Logger getLogger() { | ||
| return LOG; | ||
| } | ||
|
|
||
| @Override | ||
| public void perform() throws Exception { | ||
| StringBuilder sb = new StringBuilder(); | ||
| try (final DistributedFileSystem dfs = HdfsActionUtils.createDfs(getConf())) { | ||
| final Configuration dfsConf = dfs.getConf(); | ||
| final URI dfsUri = dfs.getUri(); | ||
| final boolean isHaAndLogicalUri = HAUtilClient.isLogicalUri(dfsConf, dfsUri); | ||
| sb.append("Cluster status").append('\n'); | ||
| if (isHaAndLogicalUri) { | ||
| final String nsId = dfsUri.getHost(); | ||
| final List<ClientProtocol> namenodes = | ||
| HAUtil.getProxiesForAllNameNodesInNameservice(dfsConf, nsId); | ||
| final boolean atLeastOneActive = HAUtil.isAtLeastOneActive(namenodes); | ||
| final InetSocketAddress activeAddress = HAUtil.getAddressOfActive(dfs); | ||
| sb.append("Active NameNode=").append(activeAddress).append(", isAtLeastOneActive=") | ||
| .append(atLeastOneActive).append('\n'); | ||
| } | ||
| DatanodeInfo[] dns = dfs.getClient().datanodeReport(HdfsConstants.DatanodeReportType.LIVE); | ||
| sb.append("Number of live DataNodes: ").append(dns.length); | ||
| for (DatanodeInfo dni : dns) { | ||
| sb.append(PREFIX).append("name=").append(dni.getName()).append(", used%=") | ||
| .append(dni.getDfsUsedPercent()).append(", capacity=") | ||
| .append(FileUtils.byteCountToDisplaySize(dni.getCapacity())); | ||
| } | ||
| sb.append('\n'); | ||
| dns = dfs.getClient().datanodeReport(HdfsConstants.DatanodeReportType.DEAD); | ||
| sb.append("Number of dead DataNodes: ").append(dns.length); | ||
| for (DatanodeInfo dni : dns) { | ||
| sb.append(PREFIX).append(dni.getName()).append("/").append(dni.getNetworkLocation()); | ||
| } | ||
| } | ||
| // TODO: add more on NN, JNs, and ZK. | ||
| // TODO: Print how long process has been up. | ||
| getLogger().info(sb.toString()); | ||
| } | ||
| } |
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hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/actions/HdfsActionUtils.java
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|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| /* | ||
| * 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.chaos.actions; | ||
|
|
||
| import java.io.IOException; | ||
| import java.io.InterruptedIOException; | ||
| import java.security.PrivilegedExceptionAction; | ||
| import org.apache.hadoop.conf.Configuration; | ||
| import org.apache.hadoop.fs.FileSystem; | ||
| import org.apache.hadoop.fs.Path; | ||
| import org.apache.hadoop.hbase.util.CommonFSUtils; | ||
| import org.apache.hadoop.hdfs.DistributedFileSystem; | ||
| import org.apache.hadoop.security.UserGroupInformation; | ||
|
|
||
| /** | ||
| * Configuration common across the HDFS Actions. | ||
| */ | ||
| public final class HdfsActionUtils { | ||
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| private HdfsActionUtils() { | ||
| } | ||
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| /** | ||
| * Specify a user as whom HDFS actions should be run. The chaos process must have permissions | ||
| * sufficient to assume the role of the specified user. | ||
| * @see <a href= | ||
| * "https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-common/Superusers.html">Proxy | ||
| * user - Superusers Acting On Behalf Of Other Users</a> | ||
| */ | ||
| public static final String HDFS_USER_CONF_KEY = "org.apache.hadoop.hbase.chaos.actions.hdfs_user"; | ||
|
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| private static DistributedFileSystem createUnproxiedDfs(final Configuration conf) | ||
| throws IOException { | ||
| final Path rootDir = CommonFSUtils.getRootDir(conf); | ||
| final FileSystem fs = rootDir.getFileSystem(conf); | ||
| return (DistributedFileSystem) fs; | ||
| } | ||
|
|
||
| /** | ||
| * Create an instance of {@link DistributedFileSystem} that honors {@value HDFS_USER_CONF_KEY}. | ||
| */ | ||
| static DistributedFileSystem createDfs(final Configuration conf) throws IOException { | ||
| final String proxyUser = conf.get(HDFS_USER_CONF_KEY); | ||
| if (proxyUser == null) { | ||
| return createUnproxiedDfs(conf); | ||
| } | ||
| final UserGroupInformation proxyUgi = | ||
| UserGroupInformation.createProxyUser(proxyUser, UserGroupInformation.getLoginUser()); | ||
| try { | ||
| return proxyUgi | ||
| .doAs((PrivilegedExceptionAction<DistributedFileSystem>) () -> createUnproxiedDfs(conf)); | ||
| } catch (InterruptedException e) { | ||
| final InterruptedIOException iioe = new InterruptedIOException(e.getMessage()); | ||
| iioe.setStackTrace(e.getStackTrace()); | ||
| throw iioe; | ||
| } | ||
| } | ||
| } |
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