Merge pull request #250 from metamx/guice-is

Make the indexing service work with new framework

indexing-service/src/main/java/io/druid/indexing/common/TaskToolboxFactory.java

@@ -24,6 +24,7 @@ import com.google.inject.Inject;
 import com.metamx.emitter.service.ServiceEmitter;
 import com.metamx.metrics.MonitorScheduler;
 import io.druid.client.ServerView;
+import io.druid.guice.annotations.Json;
 import io.druid.guice.annotations.Processing;
 import io.druid.indexing.common.actions.TaskActionClientFactory;
 import io.druid.indexing.common.config.TaskConfig;

indexing-service/src/main/java/io/druid/indexing/common/actions/RemoteTaskActionClient.java

@@ -132,14 +132,6 @@ public class RemoteTaskActionClient implements TaskActionClient
       throw new ISE("Cannot find instance of indexer to talk to!");
     }
 
-    return new URI(
+    return new URI(String.format("%s://%s%s", instance.getScheme(), instance.getHost(), "/druid/indexer/v1/action"));
-        instance.getScheme(),
-        null,
-        instance.getHost(),
-        instance.getPort(),
-        "/druid/indexer/v1/action",
-        null,
-        null
-    );
   }
 }

indexing-service/src/main/java/io/druid/indexing/common/task/MergeTaskBase.java

@@ -125,7 +125,6 @@ public abstract class MergeTaskBase extends AbstractTask
     final File taskDir = toolbox.getTaskWorkDir();
 
     try {
-
       final long startTime = System.currentTimeMillis();
 
       log.info(

indexing-service/src/main/java/io/druid/indexing/coordinator/config/ForkingTaskRunnerConfig.java

@@ -55,12 +55,19 @@ public class ForkingTaskRunnerConfig
   private String classpath = System.getProperty("java.class.path");
 
   @JsonProperty
-  @Min(1024) @Max(65535)
+  @Min(1024)
+  @Max(65535)
   private int startPort = 8080;
 
   @JsonProperty
   @NotNull
-  List<String> allowedPrefixes = Lists.newArrayList("com.metamx", "druid", "io.druid");
+  List<String> allowedPrefixes = Lists.newArrayList(
+      "com.metamx",
+      "druid",
+      "io.druid",
+      "user.timezone",
+      "file.encoding"
+  );
 
   public int maxForks()
   {

indexing-service/src/main/java/io/druid/indexing/coordinator/http/IndexerCoordinatorResource.java

@@ -19,7 +19,6 @@
 
 package io.druid.indexing.coordinator.http;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.common.base.Function;
 import com.google.common.base.Optional;
 import com.google.common.collect.Collections2;
@@ -89,7 +88,6 @@ public class IndexerCoordinatorResource
   private final TaskStorageQueryAdapter taskStorageQueryAdapter;
   private final TaskLogStreamer taskLogStreamer;
   private final JacksonConfigManager configManager;
-  private final ObjectMapper jsonMapper;
 
   private AtomicReference<WorkerSetupData> workerSetupDataRef = null;
 
@@ -98,21 +96,20 @@ public class IndexerCoordinatorResource
       TaskMaster taskMaster,
       TaskStorageQueryAdapter taskStorageQueryAdapter,
       TaskLogStreamer taskLogStreamer,
-      JacksonConfigManager configManager,
+      JacksonConfigManager configManager
-      ObjectMapper jsonMapper
   ) throws Exception
   {
     this.taskMaster = taskMaster;
     this.taskStorageQueryAdapter = taskStorageQueryAdapter;
     this.taskLogStreamer = taskLogStreamer;
     this.configManager = configManager;
-    this.jsonMapper = jsonMapper;
   }
 
   @POST
   @Path("/merge")
   @Consumes("application/json")
   @Produces("application/json")
+  @Deprecated
   public Response doMerge(final Task task)
   {
     // legacy endpoint
@@ -123,6 +120,7 @@ public class IndexerCoordinatorResource
   @Path("/index")
   @Consumes("application/json")
   @Produces("application/json")
+  @Deprecated
   public Response doIndex(final Task task)
   {
     return taskPost(task);

indexing-service/src/main/java/io/druid/indexing/coordinator/http/OldIndexerCoordinatorResource.java

@@ -19,7 +19,6 @@
 
 package io.druid.indexing.coordinator.http;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.inject.Inject;
 import io.druid.common.config.JacksonConfigManager;
 import io.druid.indexing.common.tasklogs.TaskLogStreamer;
@@ -39,10 +38,9 @@ public class OldIndexerCoordinatorResource extends IndexerCoordinatorResource
       TaskMaster taskMaster,
       TaskStorageQueryAdapter taskStorageQueryAdapter,
       TaskLogStreamer taskLogStreamer,
-      JacksonConfigManager configManager,
+      JacksonConfigManager configManager
-      ObjectMapper jsonMapper
   ) throws Exception
   {
-    super(taskMaster, taskStorageQueryAdapter, taskLogStreamer, configManager, jsonMapper);
+    super(taskMaster, taskStorageQueryAdapter, taskLogStreamer, configManager);
   }
 }

indexing-service/src/main/java/io/druid/indexing/coordinator/scaling/EC2AutoScalingStrategy.java

@@ -34,6 +34,7 @@ import com.google.common.base.Supplier;
 import com.google.common.collect.Lists;
 import com.google.inject.Inject;
 import com.metamx.emitter.EmittingLogger;
+import io.druid.guice.annotations.Json;
 import io.druid.indexing.coordinator.setup.EC2NodeData;
 import io.druid.indexing.coordinator.setup.GalaxyUserData;
 import io.druid.indexing.coordinator.setup.WorkerSetupData;
@@ -55,7 +56,7 @@ public class EC2AutoScalingStrategy implements AutoScalingStrategy
 
   @Inject
   public EC2AutoScalingStrategy(
-      ObjectMapper jsonMapper,
+      @Json ObjectMapper jsonMapper,
       AmazonEC2 amazonEC2Client,
       SimpleResourceManagementConfig config,
       Supplier<WorkerSetupData> workerSetupDataRef

indexing-service/src/main/java/io/druid/indexing/coordinator/scaling/ScalingStats.java

@@ -54,11 +54,15 @@ public class ScalingStats
 
   public ScalingStats(int capacity)
   {
+    if (capacity == 0) {
+      this.recentEvents = MinMaxPriorityQueue.orderedBy(comparator).create();
+    } else {
       this.recentEvents = MinMaxPriorityQueue
           .orderedBy(comparator)
           .maximumSize(capacity)
           .create();
     }
+  }
 
   public void addProvisionEvent(AutoScalingData data)
   {

indexing-service/src/main/java/io/druid/indexing/worker/config/WorkerConfig.java

@@ -36,10 +36,6 @@ public class WorkerConfig
   @NotNull
   private String version = null;
 
-  @JsonProperty
-  @NotNull
-  private String overlordService = null;
-
   @JsonProperty
   @Min(1)
   private int capacity = Runtime.getRuntime().availableProcessors() - 1;
@@ -54,11 +50,6 @@ public class WorkerConfig
     return version;
   }
 
-  public String getOverlordService()
-  {
-    return overlordService;
-  }
-
   public int getCapacity()
   {
     return capacity;

indexing-service/src/main/java/io/druid/indexing/worker/executor/ExecutorLifecycle.java

@@ -123,6 +123,7 @@ public class ExecutorLifecycle
               jsonMapper.writerWithDefaultPrettyPrinter().writeValueAsString(taskStatus)
           );
 
+          statusFile.getParentFile().mkdirs();
           jsonMapper.writeValue(statusFile, taskStatus);
 
           return taskStatus;

indexing-service/src/main/resources/indexer_static/js/console-0.0.1.js

@@ -3,22 +3,22 @@
 var oTable = [];
 
 $(document).ready(function() {
-  $.get('/mmx/merger/v1/runningTasks', function(data) {
+  $.get('/druid/indexer/v1/runningTasks', function(data) {
     $('.running_loading').hide();
     buildTable(data, $('#runningTable'), ["segments"]);
   });
 
-  $.get('/mmx/merger/v1/pendingTasks', function(data) {
+  $.get('/druid/indexer/v1/pendingTasks', function(data) {
     $('.pending_loading').hide();
     buildTable(data, $('#pendingTable'), ["segments"]);
   });
 
-  $.get('/mmx/merger/v1/workers', function(data) {
+  $.get('/druid/indexer/v1/workers', function(data) {
     $('.workers_loading').hide();
     buildTable(data, $('#workerTable'));
   });
 
-  $.get('/mmx/merger/v1/scaling', function(data) {
+  $.get('/druid/indexer/v1/scaling', function(data) {
     $('.events_loading').hide();
     buildTable(data, $('#eventTable'));
   });

server/src/main/java/io/druid/client/DruidServerConfig.java

@@ -29,7 +29,7 @@ public class DruidServerConfig
 {
   @JsonProperty
   @Min(0)
-  private long maxSize = -1;
+  private long maxSize = 0;
 
   @JsonProperty
   private String tier = "_default_tier";

server/src/main/java/io/druid/client/indexing/IndexingServiceClient.java

@@ -72,28 +72,28 @@ public class IndexingServiceClient
       }
     }
 
-    runQuery("merge", new ClientAppendQuery(dataSource, segments));
+    runQuery(new ClientAppendQuery(dataSource, segments));
   }
 
   public void killSegments(String dataSource, Interval interval)
   {
-    runQuery("index", new ClientKillQuery(dataSource, interval));
+    runQuery(new ClientKillQuery(dataSource, interval));
   }
 
   public void upgradeSegment(DataSegment dataSegment)
   {
-    runQuery("task", new ClientConversionQuery(dataSegment));
+    runQuery(new ClientConversionQuery(dataSegment));
   }
 
   public void upgradeSegments(String dataSource, Interval interval)
   {
-    runQuery("task", new ClientConversionQuery(dataSource, interval));
+    runQuery(new ClientConversionQuery(dataSource, interval));
   }
 
-  private InputStream runQuery(String endpoint, Object queryObject)
+  private InputStream runQuery(Object queryObject)
   {
     try {
-      return client.post(new URL(String.format("%s/%s", baseUrl(), endpoint)))
+      return client.post(new URL(String.format("%s/task", baseUrl())))
                    .setContent("application/json", jsonMapper.writeValueAsBytes(queryObject))
                    .go(RESPONSE_HANDLER)
                    .get();
@@ -111,7 +111,7 @@ public class IndexingServiceClient
         throw new ISE("Cannot find instance of indexingService");
       }
 
-      return String.format("http://%s:%s/druid/indexer/v1", instance.getHost(), instance.getPort());
+      return String.format("http://%s/druid/indexer/v1", instance.getHost());
     }
     catch (Exception e) {
       throw Throwables.propagate(e);

server/src/main/java/io/druid/curator/discovery/DiscoveryModule.java

@@ -121,7 +121,7 @@ public class DiscoveryModule implements Module
   public static void registerKey(Binder binder, Key<DruidNode> key)
   {
     DruidBinders.discoveryAnnouncementBinder(binder).addBinding().toInstance(new KeyHolder<>(key));
-    LifecycleModule.registerKey(binder, key);
+    LifecycleModule.register(binder, ServiceAnnouncer.class);
   }
 
   @Override
@@ -134,7 +134,6 @@ public class DiscoveryModule implements Module
     // Build the binder so that it will at a minimum inject an empty set.
     DruidBinders.discoveryAnnouncementBinder(binder);
 
-    // We bind this eagerly so that it gets instantiated and registers stuff with Lifecycle as a side-effect
     binder.bind(ServiceAnnouncer.class)
           .to(Key.get(CuratorServiceAnnouncer.class, Names.named(NAME)))
           .in(LazySingleton.class);

server/src/main/java/io/druid/server/QueryServlet.java

@@ -116,11 +116,9 @@ public class QueryServlet extends HttpServlet
       emitter.emit(
           new ServiceMetricEvent.Builder()
               .setUser2(query.getDataSource())
-                  //.setUser3(originatorType)
               .setUser4(query.getType())
               .setUser5(query.getIntervals().get(0).toString())
               .setUser6(String.valueOf(query.hasFilters()))
-                  //.setUser8(originatorId)
               .setUser9(query.getDuration().toPeriod().toStandardMinutes().toString())
               .build("request/time", requestTime)
       );

server/src/main/java/io/druid/server/initialization/JettyServerModule.java

@@ -19,6 +19,8 @@
 
 package io.druid.server.initialization;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider;
 import com.google.common.collect.Iterables;
 import com.google.common.primitives.Ints;
 import com.google.inject.Binder;
@@ -28,6 +30,7 @@ import com.google.inject.Injector;
 import com.google.inject.Provides;
 import com.google.inject.ProvisionException;
 import com.google.inject.Scopes;
+import com.google.inject.Singleton;
 import com.metamx.common.lifecycle.Lifecycle;
 import com.metamx.common.logger.Logger;
 import com.sun.jersey.api.core.DefaultResourceConfig;
@@ -39,7 +42,9 @@ import io.druid.guice.Jerseys;
 import io.druid.guice.JsonConfigProvider;
 import io.druid.guice.LazySingleton;
 import io.druid.guice.annotations.JSR311Resource;
+import io.druid.guice.annotations.Json;
 import io.druid.guice.annotations.Self;
+import io.druid.jackson.DefaultObjectMapper;
 import io.druid.server.DruidNode;
 import io.druid.server.StatusResource;
 import org.eclipse.jetty.server.Connector;
@@ -95,7 +100,8 @@ public class JettyServerModule extends JerseyServletModule
     }
   }
 
-  @Provides @LazySingleton
+  @Provides
+  @LazySingleton
   public Server getServer(Injector injector, Lifecycle lifecycle, @Self DruidNode node, ServerConfig config)
   {
     JettyServerInitializer initializer = injector.getInstance(JettyServerInitializer.class);
@@ -133,6 +139,15 @@ public class JettyServerModule extends JerseyServletModule
     return server;
   }
 
+  @Provides
+  @Singleton
+  public JacksonJsonProvider getJacksonJsonProvider(@Json ObjectMapper objectMapper)
+  {
+    final JacksonJsonProvider provider = new JacksonJsonProvider();
+    provider.setMapper(objectMapper);
+    return provider;
+  }
+
   private static Server makeJettyServer(@Self DruidNode node, ServerConfig config)
   {
     final QueuedThreadPool threadPool = new QueuedThreadPool();

server/src/main/java/io/druid/server/master/DruidMaster.java

@@ -471,10 +471,13 @@ public class DruidMaster
         serverInventoryView.start();
 
         final List<Pair<? extends MasterRunnable, Duration>> masterRunnables = Lists.newArrayList();
-        segmentSettingsAtomicReference = configManager.watch(MasterSegmentSettings.CONFIG_KEY, MasterSegmentSettings.class,new MasterSegmentSettings.Builder().build());
+        segmentSettingsAtomicReference = configManager.watch(
+            MasterSegmentSettings.CONFIG_KEY,
+            MasterSegmentSettings.class,
+            new MasterSegmentSettings.Builder().build()
+        );
         masterRunnables.add(Pair.of(new MasterComputeManagerRunnable(), config.getMasterPeriod()));
         if (indexingServiceClient != null) {
-
           masterRunnables.add(
               Pair.of(
                   new MasterIndexingServiceRunnable(

server/src/main/java/io/druid/server/master/DruidMasterConfig.java

@@ -42,7 +42,7 @@ public abstract class DruidMasterConfig
   @Default("PT1800s")
   public abstract Duration getMasterSegmentMergerPeriod();
 
-  @Config("druid.master.merger.on")
+  @Config("druid.master.merge.on")
   public boolean isMergeSegments()
   {
     return false;

server/src/main/java/io/druid/server/master/MasterSegmentSettings.java

@@ -81,7 +81,6 @@ public class MasterSegmentSettings
     return maxSegmentsToMove;
   }
 
-
   public static class Builder
   {
     public static final String CONFIG_KEY = "master.dynamicConfigs";
@@ -93,14 +92,16 @@ public class MasterSegmentSettings
 
     public Builder()
     {
-      this.millisToWaitBeforeDeleting=15 * 60 * 1000L;
+      this(15 * 60 * 1000L, 100000000L, Integer.MAX_VALUE, 5, false);
-      this.mergeBytesLimit= 100000000L;
-      this.mergeSegmentsLimit= Integer.MAX_VALUE;
-      this.maxSegmentsToMove = 5;
-      this.emitBalancingStats = false;
     }
 
-    public Builder(long millisToWaitBeforeDeleting, long mergeBytesLimit, int mergeSegmentsLimit, int maxSegmentsToMove, boolean emitBalancingStats)
+    public Builder(
+        long millisToWaitBeforeDeleting,
+        long mergeBytesLimit,
+        int mergeSegmentsLimit,
+        int maxSegmentsToMove,
+        boolean emitBalancingStats
+    )
     {
       this.millisToWaitBeforeDeleting = millisToWaitBeforeDeleting;
       this.mergeBytesLimit = mergeBytesLimit;
@@ -135,7 +136,13 @@ public class MasterSegmentSettings
 
     public MasterSegmentSettings build()
     {
-      return new MasterSegmentSettings(millisToWaitBeforeDeleting,mergeBytesLimit,mergeSegmentsLimit,maxSegmentsToMove, emitBalancingStats);
+      return new MasterSegmentSettings(
+          millisToWaitBeforeDeleting,
+          mergeBytesLimit,
+          mergeSegmentsLimit,
+          maxSegmentsToMove,
+          emitBalancingStats
+      );
     }
   }
 }

services/src/main/java/io/druid/cli/CliHadoopIndexer.java

@@ -52,7 +52,7 @@ import java.util.List;
 )
 public class CliHadoopIndexer extends GuiceRunnable
 {
-  @Arguments(description = "A JSON object or the path to a file that contains a JSON object")
+  @Arguments(description = "A JSON object or the path to a file that contains a JSON object", required = true)
   private String argumentSpec;
 
   private static final Logger log = new Logger(CliHadoopIndexer.class);
@@ -78,8 +78,6 @@ public class CliHadoopIndexer extends GuiceRunnable
           @LazySingleton
           public HadoopDruidIndexerConfig getHadoopDruidIndexerConfig()
           {
-            Preconditions.checkNotNull(argumentSpec, "argumentSpec");
-
             try {
               if (argumentSpec.startsWith("{")) {
                 return HadoopDruidIndexerConfig.fromString(argumentSpec);

services/src/main/java/io/druid/cli/CliOverlord.java

@@ -57,6 +57,7 @@ import io.druid.indexing.coordinator.TaskRunnerFactory;
 import io.druid.indexing.coordinator.TaskStorage;
 import io.druid.indexing.coordinator.TaskStorageQueryAdapter;
 import io.druid.indexing.coordinator.http.IndexerCoordinatorResource;
+import io.druid.indexing.coordinator.http.OldIndexerCoordinatorResource;
 import io.druid.indexing.coordinator.http.OverlordRedirectInfo;
 import io.druid.indexing.coordinator.scaling.AutoScalingStrategy;
 import io.druid.indexing.coordinator.scaling.EC2AutoScalingStrategy;
@@ -139,6 +140,7 @@ public class CliOverlord extends ServerRunnable
 
             binder.bind(JettyServerInitializer.class).toInstance(new OverlordJettyServerInitializer());
             Jerseys.addResource(binder, IndexerCoordinatorResource.class);
+            Jerseys.addResource(binder, OldIndexerCoordinatorResource.class);
 
             LifecycleModule.register(binder, Server.class);
           }

services/src/main/java/io/druid/cli/CliPeon.java

@@ -22,7 +22,6 @@ package io.druid.cli;
 import com.google.common.base.Throwables;
 import com.google.common.collect.ImmutableList;
 import com.google.inject.Binder;
-import com.google.inject.Inject;
 import com.google.inject.Injector;
 import com.google.inject.Key;
 import com.google.inject.Module;
@@ -35,6 +34,7 @@ import io.airlift.command.Option;
 import io.druid.guice.Jerseys;
 import io.druid.guice.JsonConfigProvider;
 import io.druid.guice.LazySingleton;
+import io.druid.guice.LifecycleModule;
 import io.druid.guice.ManageLifecycle;
 import io.druid.guice.NodeTypeConfig;
 import io.druid.guice.PolyBind;
@@ -52,13 +52,13 @@ import io.druid.indexing.coordinator.ThreadPoolTaskRunner;
 import io.druid.indexing.worker.executor.ChatHandlerResource;
 import io.druid.indexing.worker.executor.ExecutorLifecycle;
 import io.druid.indexing.worker.executor.ExecutorLifecycleConfig;
-import io.druid.initialization.LogLevelAdjuster;
 import io.druid.query.QuerySegmentWalker;
 import io.druid.segment.loading.DataSegmentKiller;
 import io.druid.segment.loading.S3DataSegmentKiller;
 import io.druid.segment.loading.SegmentLoaderConfig;
 import io.druid.segment.loading.StorageLocationConfig;
 import io.druid.server.initialization.JettyServerInitializer;
+import org.eclipse.jetty.server.Server;
 
 import java.io.File;
 import java.util.Arrays;
@@ -71,7 +71,7 @@ import java.util.List;
     description = "Runs a Peon, this is an individual forked \"task\" used as part of the indexing service. "
                   + "This should rarely, if ever, be used directly."
 )
-public class CliPeon implements Runnable
+public class CliPeon extends GuiceRunnable
 {
   @Arguments(description = "task.json status.json", required = true)
   public List<String> taskAndStatusFile;
@@ -79,21 +79,17 @@ public class CliPeon implements Runnable
   @Option(name = "--nodeType", title = "nodeType", description = "Set the node type to expose on ZK")
   public String nodeType = "indexer-executor";
 
-  private Injector injector;
-
-  @Inject
-  public void configure(Injector injector)
-  {
-    this.injector = injector;
-  }
-
   private static final Logger log = new Logger(CliPeon.class);
 
-  protected Injector getInjector()
+  public CliPeon()
   {
-    return Initialization.makeInjectorWithModules(
+    super(log);
-        injector,
+  }
-        ImmutableList.<Object>of(
+
+  @Override
+  protected List<Object> getModules()
+  {
+    return ImmutableList.<Object>of(
         new Module()
         {
           @Override
@@ -144,9 +140,10 @@ public class CliPeon implements Runnable
             binder.bind(JettyServerInitializer.class).to(QueryJettyServerInitializer.class);
             Jerseys.addResource(binder, ChatHandlerResource.class);
             binder.bind(NodeTypeConfig.class).toInstance(new NodeTypeConfig(nodeType));
+
+            LifecycleModule.register(binder, Server.class);
           }
         }
-        )
     );
   }
 
@@ -154,13 +151,11 @@ public class CliPeon implements Runnable
   public void run()
   {
     try {
-      LogLevelAdjuster.register();
+      Injector injector = makeInjector();
-
-      final Injector injector = getInjector();
-      final Lifecycle lifecycle = injector.getInstance(Lifecycle.class);
 
       try {
-        lifecycle.start();
+        Lifecycle lifecycle = initLifecycle(injector);
+
         injector.getInstance(ExecutorLifecycle.class).join();
         lifecycle.stop();
       }

services/src/main/java/io/druid/cli/convert/ConvertProperties.java

@@ -91,7 +91,7 @@ public class ConvertProperties implements Runnable
       new Rename("druid.indexer.maxPendingTaskDuration", "druid.indexer.autoscale.pendingTaskTimeout"),
       new Rename("druid.indexer.worker.version", "druid.indexer.autoscale.workerVersion"),
       new Rename("druid.indexer.worker.port", "druid.indexer.autoscale.workerPort"),
-      new Rename("druid.worker.masterService", "druid.worker.overlordService"),
+      new Rename("druid.worker.masterService", "druid.selectors.indexing.serviceName"),
       new ChatHandlerConverter(),
       new Rename("druid.indexer.baseDir", "druid.indexer.task.baseDir"),
       new Rename("druid.indexer.taskDir", "druid.indexer.task.taskDir"),
@@ -100,6 +100,7 @@ public class ConvertProperties implements Runnable
       new Rename("druid.worker.taskActionClient.retry.minWaitMillis", "druid.worker.taskActionClient.retry.minWait"),
       new Rename("druid.worker.taskActionClient.retry.maxWaitMillis", "druid.worker.taskActionClient.retry.maxWait"),
       new Rename("druid.master.merger.service", "druid.selectors.indexing.serviceName"),
+      new Rename("druid.master.merger.on", "druid.master.merge.on"),
       new DataSegmentPusherDefaultConverter(),
       new Rename("druid.pusher.hdfs.storageDirectory", "druid.pusher.storageDirectory"),
       new Rename("druid.pusher.cassandra.host", "druid.pusher.host"),