Github user srdo commented on a diff in the pull request:
https://github.com/apache/storm/pull/1744#discussion_r90510263
--- Diff: storm-core/src/jvm/org/apache/storm/daemon/nimbus/Nimbus.java ---
@@ -0,0 +1,3729 @@
+/**
+ * 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.storm.daemon.nimbus;
+
+import static org.apache.storm.metric.StormMetricsRegistry.registerMeter;
+import static org.apache.storm.utils.Utils.OR;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InterruptedIOException;
+import java.io.OutputStream;
+import java.net.BindException;
+import java.net.ServerSocket;
+import java.nio.ByteBuffer;
+import java.nio.channels.Channels;
+import java.nio.channels.WritableByteChannel;
+import java.security.Principal;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicLong;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.function.UnaryOperator;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import javax.security.auth.Subject;
+
+import org.apache.storm.Config;
+import org.apache.storm.StormTimer;
+import org.apache.storm.blobstore.AtomicOutputStream;
+import org.apache.storm.blobstore.BlobStore;
+import org.apache.storm.blobstore.BlobStoreAclHandler;
+import org.apache.storm.blobstore.BlobSynchronizer;
+import org.apache.storm.blobstore.InputStreamWithMeta;
+import org.apache.storm.blobstore.KeySequenceNumber;
+import org.apache.storm.blobstore.LocalFsBlobStore;
+import org.apache.storm.cluster.ClusterStateContext;
+import org.apache.storm.cluster.ClusterUtils;
+import org.apache.storm.cluster.DaemonType;
+import org.apache.storm.cluster.IStormClusterState;
+import org.apache.storm.daemon.DaemonCommon;
+import org.apache.storm.daemon.Shutdownable;
+import org.apache.storm.daemon.StormCommon;
+import org.apache.storm.generated.AlreadyAliveException;
+import org.apache.storm.generated.Assignment;
+import org.apache.storm.generated.AuthorizationException;
+import org.apache.storm.generated.BeginDownloadResult;
+import org.apache.storm.generated.ClusterSummary;
+import org.apache.storm.generated.CommonAggregateStats;
+import org.apache.storm.generated.ComponentAggregateStats;
+import org.apache.storm.generated.ComponentPageInfo;
+import org.apache.storm.generated.ComponentType;
+import org.apache.storm.generated.Credentials;
+import org.apache.storm.generated.DebugOptions;
+import org.apache.storm.generated.ErrorInfo;
+import org.apache.storm.generated.ExecutorInfo;
+import org.apache.storm.generated.ExecutorStats;
+import org.apache.storm.generated.ExecutorSummary;
+import org.apache.storm.generated.GetInfoOptions;
+import org.apache.storm.generated.InvalidTopologyException;
+import org.apache.storm.generated.KeyAlreadyExistsException;
+import org.apache.storm.generated.KeyNotFoundException;
+import org.apache.storm.generated.KillOptions;
+import org.apache.storm.generated.LSTopoHistory;
+import org.apache.storm.generated.ListBlobsResult;
+import org.apache.storm.generated.LogConfig;
+import org.apache.storm.generated.LogLevel;
+import org.apache.storm.generated.LogLevelAction;
+import org.apache.storm.generated.Nimbus.Iface;
+import org.apache.storm.generated.Nimbus.Processor;
+import org.apache.storm.generated.NimbusSummary;
+import org.apache.storm.generated.NodeInfo;
+import org.apache.storm.generated.NotAliveException;
+import org.apache.storm.generated.NumErrorsChoice;
+import org.apache.storm.generated.ProfileAction;
+import org.apache.storm.generated.ProfileRequest;
+import org.apache.storm.generated.ReadableBlobMeta;
+import org.apache.storm.generated.RebalanceOptions;
+import org.apache.storm.generated.SettableBlobMeta;
+import org.apache.storm.generated.StormBase;
+import org.apache.storm.generated.StormTopology;
+import org.apache.storm.generated.SubmitOptions;
+import org.apache.storm.generated.SupervisorInfo;
+import org.apache.storm.generated.SupervisorPageInfo;
+import org.apache.storm.generated.SupervisorSummary;
+import org.apache.storm.generated.TopologyActionOptions;
+import org.apache.storm.generated.TopologyHistoryInfo;
+import org.apache.storm.generated.TopologyInfo;
+import org.apache.storm.generated.TopologyInitialStatus;
+import org.apache.storm.generated.TopologyPageInfo;
+import org.apache.storm.generated.TopologyStatus;
+import org.apache.storm.generated.TopologySummary;
+import org.apache.storm.generated.WorkerResources;
+import org.apache.storm.generated.WorkerSummary;
+import org.apache.storm.logging.ThriftAccessLogger;
+import org.apache.storm.metric.ClusterMetricsConsumerExecutor;
+import org.apache.storm.metric.StormMetricsRegistry;
+import org.apache.storm.metric.api.DataPoint;
+import org.apache.storm.metric.api.IClusterMetricsConsumer;
+import org.apache.storm.metric.api.IClusterMetricsConsumer.ClusterInfo;
+import org.apache.storm.nimbus.DefaultTopologyValidator;
+import org.apache.storm.nimbus.ILeaderElector;
+import org.apache.storm.nimbus.ITopologyActionNotifierPlugin;
+import org.apache.storm.nimbus.ITopologyValidator;
+import org.apache.storm.nimbus.NimbusInfo;
+import org.apache.storm.scheduler.Cluster;
+import org.apache.storm.scheduler.DefaultScheduler;
+import org.apache.storm.scheduler.ExecutorDetails;
+import org.apache.storm.scheduler.INimbus;
+import org.apache.storm.scheduler.IScheduler;
+import org.apache.storm.scheduler.SchedulerAssignment;
+import org.apache.storm.scheduler.SchedulerAssignmentImpl;
+import org.apache.storm.scheduler.SupervisorDetails;
+import org.apache.storm.scheduler.Topologies;
+import org.apache.storm.scheduler.TopologyDetails;
+import org.apache.storm.scheduler.WorkerSlot;
+import org.apache.storm.scheduler.resource.ResourceUtils;
+import org.apache.storm.security.INimbusCredentialPlugin;
+import org.apache.storm.security.auth.AuthUtils;
+import org.apache.storm.security.auth.IAuthorizer;
+import org.apache.storm.security.auth.ICredentialsRenewer;
+import org.apache.storm.security.auth.IGroupMappingServiceProvider;
+import org.apache.storm.security.auth.IPrincipalToLocal;
+import org.apache.storm.security.auth.NimbusPrincipal;
+import org.apache.storm.security.auth.ReqContext;
+import org.apache.storm.security.auth.ThriftConnectionType;
+import org.apache.storm.security.auth.ThriftServer;
+import org.apache.storm.stats.StatsUtil;
+import org.apache.storm.utils.BufferInputStream;
+import org.apache.storm.utils.ConfigUtils;
+import org.apache.storm.utils.LocalState;
+import org.apache.storm.utils.Time;
+import org.apache.storm.utils.TimeCacheMap;
+import org.apache.storm.utils.TupleUtils;
+import org.apache.storm.utils.Utils;
+import org.apache.storm.utils.Utils.UptimeComputer;
+import org.apache.storm.utils.VersionInfo;
+import org.apache.storm.validation.ConfigValidation;
+import org.apache.storm.zookeeper.Zookeeper;
+import org.apache.thrift.TException;
+import org.apache.zookeeper.ZooDefs;
+import org.apache.zookeeper.data.ACL;
+import org.json.simple.JSONValue;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.codahale.metrics.Meter;
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.collect.ImmutableMap;
+
+public class Nimbus implements Iface, Shutdownable, DaemonCommon {
+ private final static Logger LOG =
LoggerFactory.getLogger(Nimbus.class);
+
+ // Metrics
+ private static final Meter submitTopologyWithOptsCalls =
registerMeter("nimbus:num-submitTopologyWithOpts-calls");
+ private static final Meter submitTopologyCalls =
registerMeter("nimbus:num-submitTopology-calls");
+ private static final Meter killTopologyWithOptsCalls =
registerMeter("nimbus:num-killTopologyWithOpts-calls");
+ private static final Meter killTopologyCalls =
registerMeter("nimbus:num-killTopology-calls");
+ private static final Meter rebalanceCalls =
registerMeter("nimbus:num-rebalance-calls");
+ private static final Meter activateCalls =
registerMeter("nimbus:num-activate-calls");
+ private static final Meter deactivateCalls =
registerMeter("nimbus:num-deactivate-calls");
+ private static final Meter debugCalls =
registerMeter("nimbus:num-debug-calls");
+ private static final Meter setWorkerProfilerCalls =
registerMeter("nimbus:num-setWorkerProfiler-calls");
+ private static final Meter getComponentPendingProfileActionsCalls =
registerMeter("nimbus:num-getComponentPendingProfileActions-calls");
+ private static final Meter setLogConfigCalls =
registerMeter("nimbus:num-setLogConfig-calls");
+ private static final Meter uploadNewCredentialsCalls =
registerMeter("nimbus:num-uploadNewCredentials-calls");
+ private static final Meter beginFileUploadCalls =
registerMeter("nimbus:num-beginFileUpload-calls");
+ private static final Meter uploadChunkCalls =
registerMeter("nimbus:num-uploadChunk-calls");
+ private static final Meter finishFileUploadCalls =
registerMeter("nimbus:num-finishFileUpload-calls");
+ private static final Meter beginFileDownloadCalls =
registerMeter("nimbus:num-beginFileDownload-calls");
+ private static final Meter downloadChunkCalls =
registerMeter("nimbus:num-downloadChunk-calls");
+ private static final Meter getNimbusConfCalls =
registerMeter("nimbus:num-getNimbusConf-calls");
+ private static final Meter getLogConfigCalls =
registerMeter("nimbus:num-getLogConfig-calls");
+ private static final Meter getTopologyConfCalls =
registerMeter("nimbus:num-getTopologyConf-calls");
+ private static final Meter getTopologyCalls =
registerMeter("nimbus:num-getTopology-calls");
+ private static final Meter getUserTopologyCalls =
registerMeter("nimbus:num-getUserTopology-calls");
+ private static final Meter getClusterInfoCalls =
registerMeter("nimbus:num-getClusterInfo-calls");
+ private static final Meter getTopologyInfoWithOptsCalls =
registerMeter("nimbus:num-getTopologyInfoWithOpts-calls");
+ private static final Meter getTopologyInfoCalls =
registerMeter("nimbus:num-getTopologyInfo-calls");
+ private static final Meter getTopologyPageInfoCalls =
registerMeter("nimbus:num-getTopologyPageInfo-calls");
+ private static final Meter getSupervisorPageInfoCalls =
registerMeter("nimbus:num-getSupervisorPageInfo-calls");
+ private static final Meter getComponentPageInfoCalls =
registerMeter("nimbus:num-getComponentPageInfo-calls");
+ private static final Meter shutdownCalls =
registerMeter("nimbus:num-shutdown-calls");
+ // END Metrics
+
+ private static final String STORM_VERSION = VersionInfo.getVersion();
+ @VisibleForTesting
+ public static final List<ACL> ZK_ACLS =
Arrays.asList(ZooDefs.Ids.CREATOR_ALL_ACL.get(0),
+ new ACL(ZooDefs.Perms.READ | ZooDefs.Perms.CREATE,
ZooDefs.Ids.ANYONE_ID_UNSAFE));
+ private static final Subject NIMBUS_SUBJECT = new Subject();
+ static {
+ NIMBUS_SUBJECT.getPrincipals().add(new NimbusPrincipal());
+ NIMBUS_SUBJECT.setReadOnly();
+ }
+
+ // TOPOLOGY STATE TRANSITIONS
+ private static StormBase make(TopologyStatus status) {
+ StormBase ret = new StormBase();
+ ret.set_status(status);
+ //The following are required for backwards compatibility with
clojure code
+ ret.set_component_executors(Collections.emptyMap());
+ ret.set_component_debug(Collections.emptyMap());
+ return ret;
+ }
+
+ private static final TopologyStateTransition NOOP_TRANSITION = (arg,
nimbus, topoId, base) -> null;
+ private static final TopologyStateTransition INACTIVE_TRANSITION =
(arg, nimbus, topoId, base) -> Nimbus.make(TopologyStatus.INACTIVE);
+ private static final TopologyStateTransition ACTIVE_TRANSITION = (arg,
nimbus, topoId, base) -> Nimbus.make(TopologyStatus.ACTIVE);
+ private static final TopologyStateTransition KILL_TRANSITION =
(killTime, nimbus, topoId, base) -> {
+ int delay = 0;
+ if (killTime != null) {
+ delay = ((Number)killTime).intValue();
+ } else {
+ delay = Utils.getInt(Nimbus.readTopoConf(topoId,
nimbus.getBlobStore()).get(Config.TOPOLOGY_MESSAGE_TIMEOUT_SECS));
+ }
+ nimbus.delayEvent(topoId, delay, TopologyActions.REMOVE, null);
+ StormBase sb = new StormBase();
+ sb.set_status(TopologyStatus.KILLED);
+ TopologyActionOptions tao = new TopologyActionOptions();
+ KillOptions opts = new KillOptions();
+ opts.set_wait_secs(delay);
+ tao.set_kill_options(opts);
+ sb.set_topology_action_options(tao);
+ sb.set_component_executors(Collections.emptyMap());
+ sb.set_component_debug(Collections.emptyMap());
+ return sb;
+ };
+
+ private static final TopologyStateTransition REBALANCE_TRANSITION =
(args, nimbus, topoId, base) -> {
+ RebalanceOptions rbo = ((RebalanceOptions) args).deepCopy();
+ int delay = 0;
+ if (rbo.is_set_wait_secs()) {
+ delay = rbo.get_wait_secs();
+ } else {
+ delay = Utils.getInt(Nimbus.readTopoConf(topoId,
nimbus.getBlobStore()).get(Config.TOPOLOGY_MESSAGE_TIMEOUT_SECS));
+ }
+ nimbus.delayEvent(topoId, delay, TopologyActions.DO_REBALANCE,
null);
+
+ rbo.set_wait_secs(delay);
+ if (!rbo.is_set_num_executors()) {
+ rbo.set_num_executors(Collections.emptyMap());
+ }
+
+ StormBase sb = new StormBase();
+ sb.set_status(TopologyStatus.REBALANCING);
+ sb.set_prev_status(base.get_status());
+ TopologyActionOptions tao = new TopologyActionOptions();
+ tao.set_rebalance_options(rbo);
+ sb.set_topology_action_options(tao);
+ sb.set_component_executors(Collections.emptyMap());
+ sb.set_component_debug(Collections.emptyMap());
+
+ return sb;
+ };
+
+ private static final TopologyStateTransition
STARTUP_WHEN_KILLED_TRANSITION = (args, nimbus, topoId, base) -> {
+ int delay =
base.get_topology_action_options().get_kill_options().get_wait_secs();
+ nimbus.delayEvent(topoId, delay, TopologyActions.REMOVE, null);
+ return null;
+ };
+
+ private static final TopologyStateTransition REMOVE_TRANSITION =
(args, nimbus, topoId, base) -> {
+ LOG.info("Killing topology: {}", topoId);
+ IStormClusterState state = nimbus.getStormClusterState();
+ state.removeStorm(topoId);
+ BlobStore store = nimbus.getBlobStore();
+ if (store instanceof LocalFsBlobStore) {
+ for (String key: Nimbus.getKeyListFromId(nimbus.getConf(),
topoId)) {
+ state.removeBlobstoreKey(key);
+ state.removeKeyVersion(key);
+ }
+ }
+ return null;
+ };
+
+ private static final TopologyStateTransition
STARTUP_WHEN_REBALANCING_TRANSITION = (args, nimbus, topoId, base) -> {
+ int delay =
base.get_topology_action_options().get_rebalance_options().get_wait_secs();
+ nimbus.delayEvent(topoId, delay, TopologyActions.DO_REBALANCE,
null);
+ return null;
+ };
+
+ private static final TopologyStateTransition DO_REBALANCE_TRANSITION =
(args, nimbus, topoId, base) -> {
+ nimbus.doRebalance(topoId, base);
+ return Nimbus.make(base.get_prev_status());
+ };
+
+ private static final Map<TopologyStatus, Map<TopologyActions,
TopologyStateTransition>> TOPO_STATE_TRANSITIONS =
+ new ImmutableMap.Builder<TopologyStatus, Map<TopologyActions,
TopologyStateTransition>>()
+ .put(TopologyStatus.ACTIVE, new
ImmutableMap.Builder<TopologyActions, TopologyStateTransition>()
+ .put(TopologyActions.INACTIVATE, INACTIVE_TRANSITION)
+ .put(TopologyActions.ACTIVATE, NOOP_TRANSITION)
+ .put(TopologyActions.REBALANCE, REBALANCE_TRANSITION)
+ .put(TopologyActions.KILL, KILL_TRANSITION)
+ .build())
+ .put(TopologyStatus.INACTIVE, new
ImmutableMap.Builder<TopologyActions, TopologyStateTransition>()
+ .put(TopologyActions.ACTIVATE, ACTIVE_TRANSITION)
+ .put(TopologyActions.INACTIVATE, NOOP_TRANSITION)
+ .put(TopologyActions.REBALANCE, REBALANCE_TRANSITION)
+ .put(TopologyActions.KILL, KILL_TRANSITION)
+ .build())
+ .put(TopologyStatus.KILLED, new
ImmutableMap.Builder<TopologyActions, TopologyStateTransition>()
+ .put(TopologyActions.STARTUP,
STARTUP_WHEN_KILLED_TRANSITION)
+ .put(TopologyActions.KILL, KILL_TRANSITION)
+ .put(TopologyActions.REMOVE, REMOVE_TRANSITION)
+ .build())
+ .put(TopologyStatus.REBALANCING, new
ImmutableMap.Builder<TopologyActions, TopologyStateTransition>()
+ .put(TopologyActions.STARTUP,
STARTUP_WHEN_REBALANCING_TRANSITION)
+ .put(TopologyActions.KILL, KILL_TRANSITION)
+ .put(TopologyActions.DO_REBALANCE,
DO_REBALANCE_TRANSITION)
+ .build())
+ .build();
+
+ // END TOPOLOGY STATE TRANSITIONS
+
+ private static final class Assoc<K,V> implements UnaryOperator<Map<K,
V>> {
+ private final K key;
+ private final V value;
+
+ public Assoc(K key, V value) {
+ this.key = key;
+ this.value = value;
+ }
+
+ @Override
+ public Map<K, V> apply(Map<K, V> t) {
+ Map<K, V> ret = new HashMap<>(t);
+ ret.put(key, value);
+ return ret;
+ }
+ }
+
+ private static final class Dissoc<K,V> implements UnaryOperator<Map<K,
V>> {
+ private final K key;
+
+ public Dissoc(K key) {
+ this.key = key;
+ }
+
+ @Override
+ public Map<K, V> apply(Map<K, V> t) {
+ Map<K, V> ret = new HashMap<>(t);
+ ret.remove(key);
+ return ret;
+ }
+ }
+
+ @VisibleForTesting
+ public static class StandaloneINimbus implements INimbus {
+
+ @Override
+ public void prepare(@SuppressWarnings("rawtypes") Map stormConf,
String schedulerLocalDir) {
+ //NOOP
+ }
+
+ @SuppressWarnings("unchecked")
+ @Override
+ public Collection<WorkerSlot>
allSlotsAvailableForScheduling(Collection<SupervisorDetails> supervisors,
+ Topologies topologies, Set<String>
topologiesMissingAssignments) {
+ Set<WorkerSlot> ret = new HashSet<>();
+ for (SupervisorDetails sd: supervisors) {
+ String id = sd.getId();
+ for (Number port: (Collection<Number>)sd.getMeta()) {
+ ret.add(new WorkerSlot(id, port));
+ }
+ }
+ return ret;
+ }
+
+ @Override
+ public void assignSlots(Topologies topologies, Map<String,
Collection<WorkerSlot>> newSlotsByTopologyId) {
+ //NOOP
+ }
+
+ @Override
+ public String getHostName(Map<String, SupervisorDetails>
supervisors, String nodeId) {
+ SupervisorDetails sd = supervisors.get(nodeId);
+ if (sd != null) {
+ return sd.getHost();
+ }
+ return null;
+ }
+
+ @Override
+ public IScheduler getForcedScheduler() {
+ return null;
+ }
+
+ };
+
+ private static class CommonTopoInfo {
+ public Map<String, Object> topoConf;
+ public String topoName;
+ public StormTopology topology;
+ public Map<Integer, String> taskToComponent;
+ public StormBase base;
+ public int launchTimeSecs;
+ public Assignment assignment;
+ public Map<List<Integer>, Map<String, Object>> beats;
+ public HashSet<String> allComponents;
+
+ }
+
+ @SuppressWarnings("deprecation")
+ private static <T extends AutoCloseable> TimeCacheMap<String, T>
fileCacheMap(Map<String, Object> conf) {
+ return new
TimeCacheMap<>(Utils.getInt(conf.get(Config.NIMBUS_FILE_COPY_EXPIRATION_SECS),
600),
+ (id, stream) -> {
+ try {
+ stream.close();
+ } catch (Exception e) {
+ throw new RuntimeException(e);
+ }
+ });
+ }
+
+ private static <K, V> Map<K, V> merge(Map<? extends K, ? extends V>
first, Map<? extends K, ? extends V> other) {
--- End diff --
I can't tell if this would ever be a problem, but this will throw an NPE if
first is null, where Clojure's merge would return other.
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