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Posted to commits@hive.apache.org by th...@apache.org on 2014/08/15 19:58:09 UTC

svn commit: r1618248 - in /hive/trunk/shims: 0.23/src/main/java/org/apache/hadoop/hive/thrift/HadoopThriftAuthBridge23.java common/src/main/java/org/apache/hadoop/hive/shims/ShimLoader.java

Author: thejas
Date: Fri Aug 15 17:58:09 2014
New Revision: 1618248

URL: http://svn.apache.org/r1618248
Log:
HIVE-7620 : Hive metastore fails to start in secure mode due to "java.lang.NoSuchFieldError: SASL_PROPS" error (Thejas Nair, reviewed by Jason Dere)

Added:
    hive/trunk/shims/0.23/src/main/java/org/apache/hadoop/hive/thrift/HadoopThriftAuthBridge23.java
Modified:
    hive/trunk/shims/common/src/main/java/org/apache/hadoop/hive/shims/ShimLoader.java

Added: hive/trunk/shims/0.23/src/main/java/org/apache/hadoop/hive/thrift/HadoopThriftAuthBridge23.java
URL: http://svn.apache.org/viewvc/hive/trunk/shims/0.23/src/main/java/org/apache/hadoop/hive/thrift/HadoopThriftAuthBridge23.java?rev=1618248&view=auto
==============================================================================
--- hive/trunk/shims/0.23/src/main/java/org/apache/hadoop/hive/thrift/HadoopThriftAuthBridge23.java (added)
+++ hive/trunk/shims/0.23/src/main/java/org/apache/hadoop/hive/thrift/HadoopThriftAuthBridge23.java Fri Aug 15 17:58:09 2014
@@ -0,0 +1,107 @@
+/**
+ * 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.hive.thrift;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.util.Map;
+
+import org.apache.hadoop.conf.Configurable;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.security.SaslRpcServer;
+
+/**
+ * Functions that bridge Thrift's SASL transports to Hadoop's SASL callback
+ * handlers and authentication classes.
+ *
+ * This is a 0.23/2.x specific implementation
+ */
+public class HadoopThriftAuthBridge23 extends HadoopThriftAuthBridge20S {
+
+  private static Field SASL_PROPS_FIELD;
+  private static Class<?> SASL_PROPERTIES_RESOLVER_CLASS;
+  private static Method RES_GET_INSTANCE_METHOD;
+  private static Method GET_DEFAULT_PROP_METHOD;
+  static {
+    SASL_PROPERTIES_RESOLVER_CLASS = null;
+    SASL_PROPS_FIELD = null;
+    final String SASL_PROP_RES_CLASSNAME = "org.apache.hadoop.security.SaslPropertiesResolver";
+    try {
+      SASL_PROPERTIES_RESOLVER_CLASS = Class.forName(SASL_PROP_RES_CLASSNAME);
+
+    } catch (ClassNotFoundException e) {
+    }
+
+    if (SASL_PROPERTIES_RESOLVER_CLASS != null) {
+      // found the class, so this would be hadoop version 2.4 or newer (See
+      // HADOOP-10221, HADOOP-10451)
+      try {
+        RES_GET_INSTANCE_METHOD = SASL_PROPERTIES_RESOLVER_CLASS.getMethod("getInstance",
+            Configuration.class);
+        GET_DEFAULT_PROP_METHOD = SASL_PROPERTIES_RESOLVER_CLASS.getMethod("getDefaultProperties");
+      } catch (Exception e) {
+        // this must be hadoop 2.4 , where getDefaultProperties was protected
+      }
+    }
+
+    if (SASL_PROPERTIES_RESOLVER_CLASS == null || GET_DEFAULT_PROP_METHOD == null) {
+      // this must be a hadoop 2.4 version or earlier.
+      // Resorting to the earlier method of getting the properties, which uses SASL_PROPS field
+      try {
+        SASL_PROPS_FIELD = SaslRpcServer.class.getField("SASL_PROPS");
+      } catch (NoSuchFieldException e) {
+        // Older version of hadoop should have had this field
+        throw new IllegalStateException("Error finding hadoop SASL_PROPS field in "
+            + SaslRpcServer.class.getSimpleName(), e);
+      }
+    }
+  }
+
+  /**
+   * Read and return Hadoop SASL configuration which can be configured using
+   * "hadoop.rpc.protection"
+   *
+   * @param conf
+   * @return Hadoop SASL configuration
+   */
+  @SuppressWarnings("unchecked")
+  @Override
+  public Map<String, String> getHadoopSaslProperties(Configuration conf) {
+    if (SASL_PROPS_FIELD != null) {
+      // hadoop 2.4 and earlier way of finding the sasl property settings
+      // Initialize the SaslRpcServer to ensure QOP parameters are read from
+      // conf
+      SaslRpcServer.init(conf);
+      try {
+        return (Map<String, String>) SASL_PROPS_FIELD.get(null);
+      } catch (Exception e) {
+        throw new IllegalStateException("Error finding hadoop SASL properties", e);
+      }
+    }
+    // 2.5 and later way of finding sasl property
+    try {
+      Configurable saslPropertiesResolver = (Configurable) RES_GET_INSTANCE_METHOD.invoke(null,
+          conf);
+      saslPropertiesResolver.setConf(conf);
+      return (Map<String, String>) GET_DEFAULT_PROP_METHOD.invoke(saslPropertiesResolver);
+    } catch (Exception e) {
+      throw new IllegalStateException("Error finding hadoop SASL properties", e);
+    }
+  }
+
+}

Modified: hive/trunk/shims/common/src/main/java/org/apache/hadoop/hive/shims/ShimLoader.java
URL: http://svn.apache.org/viewvc/hive/trunk/shims/common/src/main/java/org/apache/hadoop/hive/shims/ShimLoader.java?rev=1618248&r1=1618247&r2=1618248&view=diff
==============================================================================
--- hive/trunk/shims/common/src/main/java/org/apache/hadoop/hive/shims/ShimLoader.java (original)
+++ hive/trunk/shims/common/src/main/java/org/apache/hadoop/hive/shims/ShimLoader.java Fri Aug 15 17:58:09 2014
@@ -17,7 +17,6 @@
  */
 package org.apache.hadoop.hive.shims;
 
-import java.lang.IllegalArgumentException;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -33,6 +32,7 @@ public abstract class ShimLoader {
   private static HadoopShims hadoopShims;
   private static JettyShims jettyShims;
   private static AppenderSkeleton eventCounter;
+  private static HadoopThriftAuthBridge hadoopThriftAuthBridge;
 
   /**
    * The names of the classes for shimming Hadoop for each major version.
@@ -72,6 +72,22 @@ public abstract class ShimLoader {
   }
 
   /**
+   * The names of the classes for shimming {@link HadoopThriftAuthBridge}
+   */
+  private static final HashMap<String, String> HADOOP_THRIFT_AUTH_BRIDGE_CLASSES =
+      new HashMap<String, String>();
+
+  static {
+    HADOOP_THRIFT_AUTH_BRIDGE_CLASSES.put("0.20",
+        "org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge");
+    HADOOP_THRIFT_AUTH_BRIDGE_CLASSES.put("0.20S",
+        "org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge20S");
+    HADOOP_THRIFT_AUTH_BRIDGE_CLASSES.put("0.23",
+        "org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge23");
+  }
+
+
+  /**
    * Factory method to get an instance of HadoopShims based on the
    * version of Hadoop on the classpath.
    */
@@ -101,13 +117,12 @@ public abstract class ShimLoader {
   }
 
   public static synchronized HadoopThriftAuthBridge getHadoopThriftAuthBridge() {
-      if (getHadoopShims().isSecureShimImpl()) {
-          return createShim("org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge20S",
-                            HadoopThriftAuthBridge.class);
-        } else {
-          return new HadoopThriftAuthBridge();
-        }
-      }
+    if (hadoopThriftAuthBridge == null) {
+      hadoopThriftAuthBridge = loadShims(HADOOP_THRIFT_AUTH_BRIDGE_CLASSES,
+          HadoopThriftAuthBridge.class);
+    }
+    return hadoopThriftAuthBridge;
+  }
 
   private static <T> T loadShims(Map<String, String> classMap, Class<T> xface) {
     String vers = getMajorVersion();
@@ -115,13 +130,12 @@ public abstract class ShimLoader {
     return createShim(className, xface);
   }
 
-    private static <T> T createShim(String className, Class<T> xface) {
+  private static <T> T createShim(String className, Class<T> xface) {
     try {
       Class<?> clazz = Class.forName(className);
       return xface.cast(clazz.newInstance());
     } catch (Exception e) {
-      throw new RuntimeException("Could not load shims in class " +
-          className, e);
+      throw new RuntimeException("Could not load shims in class " + className, e);
     }
   }