Github user abhishekagarwal87 commented on a diff in the pull request:
https://github.com/apache/storm/pull/1184#discussion_r55938170
--- Diff:
storm-core/src/jvm/org/apache/storm/daemon/supervisor/Supervisor.java ---
@@ -0,0 +1,178 @@
+/**
+ * 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.supervisor;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.storm.Config;
+import org.apache.storm.StormTimer;
+import org.apache.storm.daemon.supervisor.timer.RunProfilerActions;
+import org.apache.storm.daemon.supervisor.timer.SupervisorHealthCheck;
+import org.apache.storm.daemon.supervisor.timer.SupervisorHeartbeat;
+import org.apache.storm.daemon.supervisor.timer.UpdateBlobs;
+import org.apache.storm.event.EventManagerImp;
+import org.apache.storm.localizer.Localizer;
+import org.apache.storm.messaging.IContext;
+import org.apache.storm.metric.StormMetricsRegistry;
+import org.apache.storm.scheduler.ISupervisor;
+import org.apache.storm.utils.ConfigUtils;
+import org.apache.storm.utils.Utils;
+import org.apache.storm.utils.VersionInfo;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.InterruptedIOException;
+import java.util.Collection;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.Callable;
+
+public class Supervisor {
+ private static Logger LOG = LoggerFactory.getLogger(Supervisor.class);
+
+ // TODO: to be removed after porting worker.clj. localSyncProcess is
intended to start local supervisor
+ private SyncProcessEvent localSyncProcess;
+
+ public void setLocalSyncProcess(SyncProcessEvent localSyncProcess) {
+ this.localSyncProcess = localSyncProcess;
+ }
+
+ /**
+ * in local state, supervisor stores who its current assignments are
another thread launches events to restart any dead processes if necessary
+ *
+ * @param conf
+ * @param sharedContext
+ * @param iSupervisor
+ * @return
+ * @throws Exception
+ */
+ public SupervisorManger mkSupervisor(final Map conf, IContext
sharedContext, ISupervisor iSupervisor) throws Exception {
+ SupervisorManger supervisorManger = null;
+ try {
+ LOG.info("Starting Supervisor with conf {}", conf);
+ iSupervisor.prepare(conf,
ConfigUtils.supervisorIsupervisorDir(conf));
+ String path = ConfigUtils.supervisorTmpDir(conf);
+ FileUtils.cleanDirectory(new File(path));
+
+ final SupervisorData supervisorData = new SupervisorData(conf,
sharedContext, iSupervisor);
+ Localizer localizer = supervisorData.getLocalizer();
+
+ SupervisorHeartbeat hb = new SupervisorHeartbeat(conf,
supervisorData);
+ hb.run();
+ // should synchronize supervisor so it doesn't launch anything
after being down (optimization)
+ Integer heartbeatFrequency =
Utils.getInt(conf.get(Config.SUPERVISOR_HEARTBEAT_FREQUENCY_SECS));
+ supervisorData.getHeartbeatTimer().scheduleRecurring(0,
heartbeatFrequency, hb);
+
+ Set<String> downdedStormId =
SupervisorUtils.readDownLoadedStormIds(conf);
--- End diff --
nit. downloadedStormIds
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