Make startup properties logging optional.

Off by default, but enabled in the example config files. See also apache#2452.

docs/content/configuration/index.md

@@ -74,6 +74,16 @@ The following path is used for service discovery. It is **not** affected by `dru
 |--------|-----------|-------|
 |`druid.discovery.curator.path`|Services announce themselves under this ZooKeeper path.|`/druid/discovery`|
 
+### Startup Logging
+
+All nodes can log debugging information on startup.
+
+|Property|Description|Default|
+|--------|-----------|-------|
+|`druid.startup.logging.logProperties`|Log all properties on startup (from common.runtime.properties, runtime.properties, and the JVM command line).|false|
+
+Note that some sensitive information may be logged if these settings are enabled.
+
 ### Request Logging
 
 All nodes that can serve queries can also log the query requests they see.

examples/conf-quickstart/druid/_common/common.runtime.properties

@@ -30,6 +30,13 @@ druid.extensions.loadList=[]
 # and uncomment the line below to point to your directory.
 #druid.extensions.hadoopDependenciesDir=/my/dir/hadoop-dependencies
 
+#
+# Logging
+#
+
+# Log all runtime properties on startup. Disable to avoid logging properties on startup:
+druid.startup.logging.logProperties=true
+
 #
 # Zookeeper
 #
@@ -41,6 +48,7 @@ druid.zk.paths.base=/druid
 # Metadata storage
 #
 
+# For Derby server on your Druid Coordinator (only viable in a cluster with a single Coordinator, no fail-over):
 druid.metadata.storage.type=derby
 druid.metadata.storage.connector.connectURI=jdbc:derby://localhost:1527/var/druid/metadata.db;create=true
 druid.metadata.storage.connector.host=localhost
@@ -62,6 +70,7 @@ druid.metadata.storage.connector.port=1527
 # Deep storage
 #
 
+# For local disk (only viable in a cluster if this is a network mount):
 druid.storage.type=local
 druid.storage.storageDirectory=var/druid/segments
 
@@ -80,6 +89,7 @@ druid.storage.storageDirectory=var/druid/segments
 # Indexing service logs
 #
 
+# For local disk (only viable in a cluster if this is a network mount):
 druid.indexer.logs.type=file
 druid.indexer.logs.directory=var/druid/indexing-logs
 
@@ -105,4 +115,4 @@ druid.selectors.coordinator.serviceName=druid/coordinator
 
 druid.monitoring.monitors=["com.metamx.metrics.JvmMonitor"]
 druid.emitter=logging
-druid.emitter.logging.logLevel=debug
+druid.emitter.logging.logLevel=info

examples/conf/druid/_common/common.runtime.properties

@@ -29,6 +29,13 @@ druid.extensions.loadList=["druid-kafka-eight", "druid-s3-extensions", "druid-hi
 # and uncomment the line below to point to your directory.
 #druid.extensions.hadoopDependenciesDir=/my/dir/hadoop-dependencies
 
+#
+# Logging
+#
+
+# Log all runtime properties on startup. Disable to avoid logging properties on startup:
+druid.startup.logging.logProperties=true
+
 #
 # Zookeeper
 #
@@ -40,6 +47,7 @@ druid.zk.paths.base=/druid
 # Metadata storage
 #
 
+# For Derby server on your Druid Coordinator (only viable in a cluster with a single Coordinator, no fail-over):
 druid.metadata.storage.type=derby
 druid.metadata.storage.connector.connectURI=jdbc:derby://metadata.store.ip:1527/var/druid/metadata.db;create=true
 druid.metadata.storage.connector.host=metadata.store.ip
@@ -61,6 +69,7 @@ druid.metadata.storage.connector.port=1527
 # Deep storage
 #
 
+# For local disk (only viable in a cluster if this is a network mount):
 druid.storage.type=local
 druid.storage.storageDirectory=var/druid/segments
 
@@ -79,12 +88,13 @@ druid.storage.storageDirectory=var/druid/segments
 # Indexing service logs
 #
 
+# For local disk (only viable in a cluster if this is a network mount):
 druid.indexer.logs.type=file
 druid.indexer.logs.directory=var/druid/indexing-logs
 
 # For HDFS (make sure to include the HDFS extension and that your Hadoop config files in the cp):
 #druid.indexer.logs.type=hdfs
-#druid.indexer.logs.directory=hdfs://namenode.example.com:9000/druid/indexing-logs
+#druid.indexer.logs.directory=/druid/indexing-logs
 
 # For S3:
 #druid.indexer.logs.type=s3

processing/src/main/java/io/druid/guice/PropertiesModule.java

@@ -87,16 +87,6 @@ public void configure(Binder binder)
       }
     }
 
-    log.info(
-        "Loaded properties into JVM with processors[%,d], memory[%,d].",
-        Runtime.getRuntime().availableProcessors(),
-        Runtime.getRuntime().totalMemory()
-    );
-
-    for (String propertyName : Ordering.natural().sortedCopy(props.stringPropertyNames())) {
-      log.info("* %s: %s", propertyName, props.getProperty(propertyName));
-    }
-
     binder.bind(Properties.class).toInstance(props);
   }
 }

server/src/main/java/io/druid/guice/StartupLoggingModule.java

@@ -0,0 +1,33 @@
+/*
+ * Licensed to Metamarkets Group Inc. (Metamarkets) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. Metamarkets 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 io.druid.guice;
+
+import com.google.inject.Binder;
+import com.google.inject.Module;
+import io.druid.server.log.StartupLoggingConfig;
+
+public class StartupLoggingModule implements Module
+{
+  @Override
+  public void configure(Binder binder)
+  {
+    JsonConfigProvider.bind(binder, "druid.startup.logging", StartupLoggingConfig.class);
+  }
+}

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

@@ -50,6 +50,7 @@
 import io.druid.guice.QueryableModule;
 import io.druid.guice.ServerModule;
 import io.druid.guice.ServerViewModule;
+import io.druid.guice.StartupLoggingModule;
 import io.druid.guice.StorageNodeModule;
 import io.druid.guice.annotations.Client;
 import io.druid.guice.annotations.Json;
@@ -302,7 +303,8 @@ public static Injector makeInjectorWithModules(final Injector baseInjector, Iter
         new CoordinatorDiscoveryModule(),
         new LocalDataStorageDruidModule(),
         new FirehoseModule(),
-        new ParsersModule()
+        new ParsersModule(),
+        new StartupLoggingModule()
     );
 
     ModuleList actualModules = new ModuleList(baseInjector);

server/src/main/java/io/druid/server/log/StartupLoggingConfig.java

@@ -0,0 +1,33 @@
+/*
+ * Licensed to Metamarkets Group Inc. (Metamarkets) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. Metamarkets 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 io.druid.server.log;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class StartupLoggingConfig
+{
+  @JsonProperty
+  private boolean logProperties = false;
+
+  public boolean isLogProperties()
+  {
+    return logProperties;
+  }
+}

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

@@ -20,15 +20,18 @@
 package io.druid.cli;
 
 import com.google.common.base.Throwables;
+import com.google.common.collect.Ordering;
 import com.google.inject.Inject;
 import com.google.inject.Injector;
 import com.google.inject.Module;
 import com.metamx.common.lifecycle.Lifecycle;
 import com.metamx.common.logger.Logger;
 import io.druid.initialization.Initialization;
 import io.druid.initialization.LogLevelAdjuster;
+import io.druid.server.log.StartupLoggingConfig;
 
 import java.util.List;
+import java.util.Properties;
 
 /**
  */
@@ -68,6 +71,21 @@ public Lifecycle initLifecycle(Injector injector)
     try {
       LogLevelAdjuster.register();
       final Lifecycle lifecycle = injector.getInstance(Lifecycle.class);
+      final StartupLoggingConfig startupLoggingConfig = injector.getInstance(StartupLoggingConfig.class);
+
+      log.info(
+          "Starting up with processors[%,d], memory[%,d].",
+          Runtime.getRuntime().availableProcessors(),
+          Runtime.getRuntime().totalMemory()
+      );
+
+      if (startupLoggingConfig.isLogProperties()) {
+        final Properties props = injector.getInstance(Properties.class);
+
+        for (String propertyName : Ordering.natural().sortedCopy(props.stringPropertyNames())) {
+          log.info("* %s: %s", propertyName, props.getProperty(propertyName));
+        }
+      }
 
       try {
         lifecycle.start();