Grokbase Groups Hive commits May 2016
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Repository: hive
Updated Branches:
   refs/heads/master b420e1da9 -> 68a421080


HIVE-13561: HiveServer2 is leaking ClassLoaders when add jar / temporary functions are used (Trystan Leftwich reviewed by Vaibhav Gumashta)


Project: http://git-wip-us.apache.org/repos/asf/hive/repo
Commit: http://git-wip-us.apache.org/repos/asf/hive/commit/68a42108
Tree: http://git-wip-us.apache.org/repos/asf/hive/tree/68a42108
Diff: http://git-wip-us.apache.org/repos/asf/hive/diff/68a42108

Branch: refs/heads/master
Commit: 68a4210808ecf965d9d8bb4c934cb548c334fe72
Parents: b420e1d
Author: Vaibhav Gumashta <vgumashta@hortonworks.com>
Authored: Fri May 27 00:23:25 2016 -0700
Committer: Vaibhav Gumashta <vgumashta@hortonworks.com>
Committed: Fri May 27 00:23:25 2016 -0700

----------------------------------------------------------------------
  .../apache/hive/jdbc/TestJdbcWithMiniHS2.java | 145 +++++++++++++++++++
  .../apache/hadoop/hive/ql/exec/Registry.java | 10 +-
  2 files changed, 150 insertions(+), 5 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hive/blob/68a42108/itests/hive-unit/src/test/java/org/apache/hive/jdbc/TestJdbcWithMiniHS2.java
----------------------------------------------------------------------
diff --git a/itests/hive-unit/src/test/java/org/apache/hive/jdbc/TestJdbcWithMiniHS2.java b/itests/hive-unit/src/test/java/org/apache/hive/jdbc/TestJdbcWithMiniHS2.java
index 4aa98ca..a01daa4 100644
--- a/itests/hive-unit/src/test/java/org/apache/hive/jdbc/TestJdbcWithMiniHS2.java
+++ b/itests/hive-unit/src/test/java/org/apache/hive/jdbc/TestJdbcWithMiniHS2.java
@@ -24,7 +24,9 @@ import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertTrue;
  import static org.junit.Assert.fail;

+import java.lang.reflect.Constructor;
  import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
  import java.sql.Connection;
  import java.sql.DriverManager;
  import java.sql.ResultSet;
@@ -46,6 +48,8 @@ import java.util.concurrent.ThreadPoolExecutor;
  import java.util.concurrent.TimeUnit;
  import java.util.concurrent.TimeoutException;

+import com.google.common.cache.Cache;
+import com.google.common.cache.CacheBuilder;
  import org.apache.commons.lang.StringUtils;
  import org.apache.hadoop.fs.FileSystem;
  import org.apache.hadoop.fs.Path;
@@ -54,6 +58,7 @@ import org.apache.hadoop.hive.conf.HiveConf;
  import org.apache.hadoop.hive.conf.HiveConf.ConfVars;
  import org.apache.hadoop.hive.metastore.ObjectStore;
  import org.apache.hadoop.hive.ql.exec.FunctionRegistry;
+import org.apache.hive.common.util.ReflectionUtil;
  import org.apache.hive.jdbc.miniHS2.MiniHS2;
  import org.datanucleus.ClassLoaderResolver;
  import org.datanucleus.NucleusContext;
@@ -943,4 +948,144 @@ public class TestJdbcWithMiniHS2 {
      }
      return -1;
    }
+
+ /**
+ * Tests ADD JAR uses Hives ReflectionUtil.CONSTRUCTOR_CACHE
+ *
+ * @throws Exception
+ */
+ @Test
+ public void testAddJarConstructorUnCaching() throws Exception {
+ // This test assumes the hive-contrib JAR has been built as part of the Hive build.
+ // Also dependent on the UDFExampleAdd class within that JAR.
+ setReflectionUtilCache();
+ String udfClassName = "org.apache.hadoop.hive.contrib.udf.example.UDFExampleAdd";
+ String mvnRepo = System.getProperty("maven.local.repository");
+ String hiveVersion = System.getProperty("hive.version");
+ String jarFileName = "hive-contrib-" + hiveVersion + ".jar";
+ String[] pathParts = {
+ "org", "apache", "hive",
+ "hive-contrib", hiveVersion, jarFileName
+ };
+
+ // Create path to hive-contrib JAR on local filesystem
+ Path jarFilePath = new Path(mvnRepo);
+ for (String pathPart : pathParts) {
+ jarFilePath = new Path(jarFilePath, pathPart);
+ }
+
+ Connection conn = getConnection(miniHS2.getJdbcURL(), "foo", "bar");
+ String tableName = "testAddJar";
+ Statement stmt = conn.createStatement();
+ stmt.execute("SET hive.support.concurrency = false");
+ // Create table
+ stmt.execute("DROP TABLE IF EXISTS " + tableName);
+ stmt.execute("CREATE TABLE " + tableName + " (key INT, value STRING)");
+ // Load data
+ stmt.execute("LOAD DATA LOCAL INPATH '" + kvDataFilePath.toString() + "' INTO TABLE "
+ + tableName);
+ ResultSet res = stmt.executeQuery("SELECT * FROM " + tableName);
+ // Ensure table is populated
+ assertTrue(res.next());
+
+ long cacheBeforeAddJar, cacheAfterAddJar, cacheAfterClose;
+ // Force the cache clear so we know its empty
+ invalidateReflectionUtlCache();
+ cacheBeforeAddJar = getReflectionUtilCacheSize();
+ System.out.println("CONSTRUCTOR_CACHE size before add jar: " + cacheBeforeAddJar);
+ System.out.println("CONSTRUCTOR_CACHE as map before add jar:" + getReflectionUtilCache().asMap());
+ Assert.assertTrue("FAILED: CONSTRUCTOR_CACHE size before add jar: " + cacheBeforeAddJar,
+ cacheBeforeAddJar == 0);
+
+ // Add the jar file
+ stmt.execute("ADD JAR " + jarFilePath.toString());
+ // Create a temporary function using the jar
+ stmt.execute("CREATE TEMPORARY FUNCTION func AS '" + udfClassName + "'");
+ // Execute the UDF
+ res = stmt.executeQuery("SELECT func(value) from " + tableName);
+ assertTrue(res.next());
+
+ // Check to make sure the cache is now being used
+ cacheAfterAddJar = getReflectionUtilCacheSize();
+ System.out.println("CONSTRUCTOR_CACHE size after add jar: " + cacheAfterAddJar);
+ Assert.assertTrue("FAILED: CONSTRUCTOR_CACHE size after connection close: " + cacheAfterAddJar,
+ cacheAfterAddJar > 0);
+ conn.close();
+ TimeUnit.SECONDS.sleep(10);
+ // Have to force a cleanup of all expired entries here because its possible that the
+ // expired entries will still be counted in Cache.size().
+ // Taken from:
+ // http://docs.guava-libraries.googlecode.com/git/javadoc/com/google/common/cache/CacheBuilder.html
+ cleanUpReflectionUtlCache();
+ cacheAfterClose = getReflectionUtilCacheSize();
+ System.out.println("CONSTRUCTOR_CACHE size after connection close: " + cacheAfterClose);
+ Assert.assertTrue("FAILED: CONSTRUCTOR_CACHE size after connection close: " + cacheAfterClose,
+ cacheAfterClose == 0);
+ }
+
+ private void setReflectionUtilCache() {
+ Field constructorCacheField;
+ Cache<Class<?>, Constructor<?>> tmp;
+ try {
+ constructorCacheField = ReflectionUtil.class.getDeclaredField("CONSTRUCTOR_CACHE");
+ if (constructorCacheField != null) {
+ constructorCacheField.setAccessible(true);
+ Field modifiersField = Field.class.getDeclaredField("modifiers");
+ modifiersField.setAccessible(true);
+ modifiersField.setInt(constructorCacheField, constructorCacheField.getModifiers() & ~Modifier.FINAL);
+ tmp = CacheBuilder.newBuilder().expireAfterAccess(5, TimeUnit.SECONDS).concurrencyLevel(64).weakKeys().weakValues().build();
+ constructorCacheField.set(tmp.getClass(), tmp);
+ }
+ } catch (Exception e) {
+ System.out.println("Error when setting the CONSTRUCTOR_CACHE to expire: " + e);
+ }
+ }
+
+ private Cache getReflectionUtilCache() {
+ Field constructorCacheField;
+ try {
+ constructorCacheField = ReflectionUtil.class.getDeclaredField("CONSTRUCTOR_CACHE");
+ if (constructorCacheField != null) {
+ constructorCacheField.setAccessible(true);
+ return (Cache) constructorCacheField.get(null);
+ }
+ } catch (Exception e) {
+ System.out.println("Error when getting the CONSTRUCTOR_CACHE var: " + e);
+ }
+ return null;
+ }
+
+ private void invalidateReflectionUtlCache() {
+ try {
+ Cache constructorCache = getReflectionUtilCache();
+ if ( constructorCache != null ) {
+ constructorCache.invalidateAll();
+ }
+ } catch (Exception e) {
+ System.out.println("Error when trying to invalidate the cache: " + e);
+ }
+ }
+
+ private void cleanUpReflectionUtlCache() {
+ try {
+ Cache constructorCache = getReflectionUtilCache();
+ if ( constructorCache != null ) {
+ constructorCache.cleanUp();
+ }
+ } catch (Exception e) {
+ System.out.println("Error when trying to cleanUp the cache: " + e);
+ }
+ }
+
+ private long getReflectionUtilCacheSize() {
+ try {
+ Cache constructorCache = getReflectionUtilCache();
+ if ( constructorCache != null ) {
+ return constructorCache.size();
+ }
+ } catch (Exception e) {
+ System.out.println(e);
+ }
+ return -1;
+ }
  }

http://git-wip-us.apache.org/repos/asf/hive/blob/68a42108/ql/src/java/org/apache/hadoop/hive/ql/exec/Registry.java
----------------------------------------------------------------------
diff --git a/ql/src/java/org/apache/hadoop/hive/ql/exec/Registry.java b/ql/src/java/org/apache/hadoop/hive/ql/exec/Registry.java
index 3b54b49..891514b 100644
--- a/ql/src/java/org/apache/hadoop/hive/ql/exec/Registry.java
+++ b/ql/src/java/org/apache/hadoop/hive/ql/exec/Registry.java
@@ -47,7 +47,7 @@ import org.apache.hadoop.hive.ql.udf.generic.SimpleGenericUDAFParameterInfo;
  import org.apache.hadoop.hive.ql.udf.ptf.TableFunctionResolver;
  import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector;
  import org.apache.hadoop.hive.serde2.typeinfo.TypeInfo;
-import org.apache.hadoop.util.ReflectionUtils;
+import org.apache.hive.common.util.ReflectionUtil;

  import java.io.IOException;
  import java.util.Collections;
@@ -125,7 +125,7 @@ public class Registry {
        case GENERIC_UDAF_RESOLVER:
          return registerGenericUDAF(
              functionName, (GenericUDAFResolver)
- ReflectionUtils.newInstance(udfClass, null), resources);
+ ReflectionUtil.newInstance(udfClass, null), resources);
        case TABLE_FUNCTION_RESOLVER:
          // native or not would be decided by annotation. need to evaluate that first
          return registerTableFunction(functionName,
@@ -154,7 +154,7 @@ public class Registry {
        Class<? extends GenericUDF> genericUDFClass, FunctionResource... resources) {
      validateClass(genericUDFClass, GenericUDF.class);
      FunctionInfo fI = new FunctionInfo(isNative, functionName,
- ReflectionUtils.newInstance(genericUDFClass, null), resources);
+ ReflectionUtil.newInstance(genericUDFClass, null), resources);
      addFunction(functionName, fI);
      return fI;
    }
@@ -179,7 +179,7 @@ public class Registry {
        Class<? extends GenericUDTF> genericUDTFClass, FunctionResource... resources) {
      validateClass(genericUDTFClass, GenericUDTF.class);
      FunctionInfo fI = new FunctionInfo(isNative, functionName,
- ReflectionUtils.newInstance(genericUDTFClass, null), resources);
+ ReflectionUtil.newInstance(genericUDTFClass, null), resources);
      addFunction(functionName, fI);
      return fI;
    }
@@ -197,7 +197,7 @@ public class Registry {
        Class<? extends UDAF> udafClass, FunctionResource... resources) {
      validateClass(udafClass, UDAF.class);
      FunctionInfo function = new WindowFunctionInfo(isNative, functionName,
- new GenericUDAFBridge(ReflectionUtils.newInstance(udafClass, null)), resources);
+ new GenericUDAFBridge(ReflectionUtil.newInstance(udafClass, null)), resources);
      addFunction(functionName, function);
      addFunction(WINDOW_FUNC_PREFIX + functionName, function);
      return function;

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postedMay 27, '16 at 7:24a
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