Merge branch 'dev' into dev

dolphinscheduler-common/pom.xml

@@ -594,5 +594,19 @@
 			<artifactId>janino</artifactId>
 			<version>${codehaus.janino.version}</version>
 		</dependency>
+		<dependency>
+			<groupId>com.github.rholder</groupId>
+			<artifactId>guava-retrying</artifactId>
+			<exclusions>
+				<exclusion>
+					<groupId>com.google.guava</groupId>
+					<artifactId>guava</artifactId>
+				</exclusion>
+				<exclusion>
+					<groupId>com.google.code.findbugs</groupId>
+					<artifactId>jsr305</artifactId>
+				</exclusion>
+			</exclusions>
+		</dependency>
 	</dependencies>
 </project>

dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/RetryerUtils.java

@@ -0,0 +1,108 @@
+/*
+ * 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.dolphinscheduler.common.utils;
+
+import com.github.rholder.retry.*;
+import org.apache.dolphinscheduler.common.Constants;
+
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * The Retryer util.
+ */
+public class RetryerUtils {
+    private static Retryer<Boolean> defaultRetryerResultCheck;
+    private static Retryer<Boolean> defaultRetryerResultNoCheck;
+
+    private RetryerUtils() {
+
+    }
+
+    private static Retryer<Boolean> getDefaultRetryerResultNoCheck() {
+        if (defaultRetryerResultNoCheck == null) {
+            defaultRetryerResultNoCheck = RetryerBuilder
+                    .<Boolean>newBuilder()
+                    .retryIfException()
+                    .withWaitStrategy(WaitStrategies.fixedWait(Constants.SLEEP_TIME_MILLIS, TimeUnit.MILLISECONDS))
+                    .withStopStrategy(StopStrategies.stopAfterAttempt(3))
+                    .build();
+        }
+        return defaultRetryerResultNoCheck;
+    }
+
+    /**
+     * Gets default retryer.
+     * the retryer will retry 3 times if exceptions throw
+     * and wait 1 second between each retry
+     *
+     * @param checkResult true means the callable must return true before retrying
+     *                    false means that retry callable only throw exceptions
+     * @return the default retryer
+     */
+    public static Retryer<Boolean> getDefaultRetryer(boolean checkResult) {
+        return checkResult ? getDefaultRetryer() : getDefaultRetryerResultNoCheck();
+    }
+
+    /**
+     * Gets default retryer.
+     * the retryer will retry 3 times if exceptions throw
+     * and wait 1 second between each retry
+     *
+     * @return the default retryer
+     */
+    public static Retryer<Boolean> getDefaultRetryer() {
+        if (defaultRetryerResultCheck == null) {
+            defaultRetryerResultCheck = RetryerBuilder
+                    .<Boolean>newBuilder()
+                    .retryIfResult(Boolean.FALSE::equals)
+                    .retryIfException()
+                    .withWaitStrategy(WaitStrategies.fixedWait(Constants.SLEEP_TIME_MILLIS, TimeUnit.MILLISECONDS))
+                    .withStopStrategy(StopStrategies.stopAfterAttempt(3))
+                    .build();
+        }
+        return defaultRetryerResultCheck;
+    }
+
+    /**
+     * Use RETRYER to invoke the Callable
+     *
+     * @param callable    the callable
+     * @param checkResult true means that retry callable before returning true
+     *                    false means that retry callable only throw exceptions
+     * @return the final result of callable
+     * @throws ExecutionException the execution exception
+     * @throws RetryException     the retry exception
+     */
+    public static Boolean retryCall(final Callable<Boolean> callable, boolean checkResult) throws ExecutionException, RetryException {
+        return getDefaultRetryer(checkResult).call(callable);
+    }
+
+    /**
+     * Use RETRYER to invoke the Callable before returning true
+     *
+     * @param callable the callable
+     * @return the boolean
+     * @throws ExecutionException the execution exception
+     * @throws RetryException     the retry exception
+     */
+    public static Boolean retryCall(final Callable<Boolean> callable) throws ExecutionException, RetryException {
+        return retryCall(callable, true);
+    }
+}

dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/utils/RetryerUtilsTest.java

@@ -0,0 +1,216 @@
+/*
+ * 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.dolphinscheduler.common.utils;
+
+import com.github.rholder.retry.RetryException;
+import com.github.rholder.retry.Retryer;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.concurrent.ExecutionException;
+
+public class RetryerUtilsTest {
+
+    @Test
+    public void testDefaultRetryer() {
+        Retryer<Boolean> retryer = RetryerUtils.getDefaultRetryer();
+        Assert.assertNotNull(retryer);
+        try {
+            boolean result = retryer.call(() -> true);
+            Assert.assertTrue(result);
+        } catch (ExecutionException | RetryException e) {
+            Assert.fail("Retry call failed " + e.getMessage());
+        }
+        Retryer<Boolean> retryer1 = RetryerUtils.getDefaultRetryer(true);
+        Assert.assertEquals(retryer, retryer1);
+    }
+
+    @Test
+    public void testDefaultRetryerResultCheck() {
+        Retryer<Boolean> retryer = RetryerUtils.getDefaultRetryer();
+        Assert.assertNotNull(retryer);
+        try {
+            for (int execTarget = 1; execTarget <= 3; execTarget++) {
+                int finalExecTarget = execTarget;
+                int[] execTime = {0};
+                boolean result = retryer.call(() -> {
+                    execTime[0]++;
+                    return execTime[0] == finalExecTarget;
+                });
+                Assert.assertEquals(finalExecTarget, execTime[0]);
+                Assert.assertTrue(result);
+            }
+        } catch (ExecutionException | RetryException e) {
+            Assert.fail("Retry call failed " + e.getMessage());
+        }
+        int[] execTime = {0};
+        try {
+            retryer.call(() -> {
+                execTime[0]++;
+                return execTime[0] == 4;
+            });
+            Assert.fail("Retry times not reached");
+        } catch (RetryException e) {
+            Assert.assertEquals(3, e.getNumberOfFailedAttempts());
+            Assert.assertEquals(3, execTime[0]);
+        } catch (ExecutionException e) {
+            Assert.fail("Retry call failed " + e.getMessage());
+        }
+    }
+
+    @Test
+    public void testDefaultRetryerResultNoCheck() {
+        Retryer<Boolean> retryer = RetryerUtils.getDefaultRetryer(false);
+        Assert.assertNotNull(retryer);
+        try {
+            for (int execTarget = 1; execTarget <= 5; execTarget++) {
+                int[] execTime = {0};
+                boolean result = retryer.call(() -> {
+                    execTime[0]++;
+                    return execTime[0] > 1;
+                });
+                Assert.assertEquals(1, execTime[0]);
+                Assert.assertFalse(result);
+            }
+        } catch (ExecutionException | RetryException e) {
+            Assert.fail("Retry call failed " + e.getMessage());
+        }
+    }
+
+    @Test
+    public void testRecallResultCheck() {
+        try {
+            for (int execTarget = 1; execTarget <= 3; execTarget++) {
+                int finalExecTarget = execTarget;
+                int[] execTime = {0};
+                boolean result = RetryerUtils.retryCall(() -> {
+                    execTime[0]++;
+                    return execTime[0] == finalExecTarget;
+                });
+                Assert.assertEquals(finalExecTarget, execTime[0]);
+                Assert.assertTrue(result);
+            }
+        } catch (ExecutionException | RetryException e) {
+            Assert.fail("Retry call failed " + e.getMessage());
+        }
+        int[] execTime = {0};
+        try {
+            RetryerUtils.retryCall(() -> {
+                execTime[0]++;
+                return execTime[0] == 4;
+            });
+            Assert.fail("Recall times not reached");
+        } catch (RetryException e) {
+            Assert.assertEquals(3, e.getNumberOfFailedAttempts());
+            Assert.assertEquals(3, execTime[0]);
+        } catch (ExecutionException e) {
+            Assert.fail("Retry call failed " + e.getMessage());
+        }
+    }
+
+    @Test
+    public void testRecallResultCheckWithPara() {
+        try {
+            for (int execTarget = 1; execTarget <= 3; execTarget++) {
+                int finalExecTarget = execTarget;
+                int[] execTime = {0};
+                boolean result = RetryerUtils.retryCall(() -> {
+                    execTime[0]++;
+                    return execTime[0] == finalExecTarget;
+                }, true);
+                Assert.assertEquals(finalExecTarget, execTime[0]);
+                Assert.assertTrue(result);
+            }
+        } catch (ExecutionException | RetryException e) {
+            Assert.fail("Retry call failed " + e.getMessage());
+        }
+        int[] execTime = {0};
+        try {
+            RetryerUtils.retryCall(() -> {
+                execTime[0]++;
+                return execTime[0] == 4;
+            }, true);
+            Assert.fail("Recall times not reached");
+        } catch (RetryException e) {
+            Assert.assertEquals(3, e.getNumberOfFailedAttempts());
+            Assert.assertEquals(3, execTime[0]);
+        } catch (ExecutionException e) {
+            Assert.fail("Retry call failed " + e.getMessage());
+        }
+    }
+
+    @Test
+    public void testRecallResultNoCheck() {
+        try {
+            for (int execTarget = 1; execTarget <= 5; execTarget++) {
+                int[] execTime = {0};
+                boolean result = RetryerUtils.retryCall(() -> {
+                    execTime[0]++;
+                    return execTime[0] > 1;
+                }, false);
+                Assert.assertEquals(1, execTime[0]);
+                Assert.assertFalse(result);
+            }
+        } catch (ExecutionException | RetryException e) {
+            Assert.fail("Retry call failed " + e.getMessage());
+        }
+    }
+
+    private void testRetryExceptionWithPara(boolean checkResult) {
+        try {
+            for (int execTarget = 1; execTarget <= 3; execTarget++) {
+                int finalExecTarget = execTarget;
+                int[] execTime = {0};
+                boolean result = RetryerUtils.retryCall(() -> {
+                    execTime[0]++;
+                    if (execTime[0] != finalExecTarget) {
+                        throw new IllegalArgumentException(String.valueOf(execTime[0]));
+                    }
+                    return true;
+                }, checkResult);
+                Assert.assertEquals(finalExecTarget, execTime[0]);
+                Assert.assertTrue(result);
+            }
+        } catch (ExecutionException | RetryException e) {
+            Assert.fail("Retry call failed " + e.getMessage());
+        }
+        int[] execTime = {0};
+        try {
+            RetryerUtils.retryCall(() -> {
+                execTime[0]++;
+                if (execTime[0] != 4) {
+                    throw new IllegalArgumentException(String.valueOf(execTime[0]));
+                }
+                return true;
+            }, checkResult);
+            Assert.fail("Recall times not reached");
+        } catch (RetryException e) {
+            Assert.assertEquals(3, e.getNumberOfFailedAttempts());
+            Assert.assertEquals(3, execTime[0]);
+            Assert.assertNotNull(e.getCause());
+            Assert.assertEquals(3, Integer.parseInt(e.getCause().getMessage()));
+        } catch (ExecutionException e) {
+            Assert.fail("Retry call failed " + e.getMessage());
+        }
+    }
+
+    @Test
+    public void testRetryException() {
+        testRetryExceptionWithPara(true);
+        testRetryExceptionWithPara(false);
+    }
+}

dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/processor/TaskExecuteProcessor.java

@@ -20,11 +20,13 @@ package org.apache.dolphinscheduler.server.worker.processor;
 import ch.qos.logback.classic.LoggerContext;
 import ch.qos.logback.classic.sift.SiftingAppender;
 import com.alibaba.fastjson.JSONObject;
+import com.github.rholder.retry.RetryException;
 import io.netty.channel.Channel;
 import org.apache.dolphinscheduler.common.Constants;
 import org.apache.dolphinscheduler.common.enums.ExecutionStatus;
 import org.apache.dolphinscheduler.common.enums.TaskType;
 import org.apache.dolphinscheduler.common.utils.OSUtils;
+import org.apache.dolphinscheduler.common.utils.RetryerUtils;
 import org.apache.dolphinscheduler.server.log.TaskLogDiscriminator;
 import org.apache.dolphinscheduler.common.thread.ThreadUtils;
 import org.apache.dolphinscheduler.common.utils.FileUtils;
@@ -43,6 +45,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.util.Date;
+import java.util.concurrent.ExecutionException;
 import java.util.concurrent.ExecutorService;
 
 /**
@@ -101,21 +104,19 @@ public class TaskExecuteProcessor implements NettyRequestProcessor {
         taskCallbackService.addRemoteChannel(taskExecutionContext.getTaskInstanceId(),
                 new NettyRemoteChannel(channel, command.getOpaque()));
 
+        // tell master that task is in executing
+        final Command ackCommand = buildAckCommand(taskExecutionContext).convert2Command();
+        
         try {
-            this.doAck(taskExecutionContext);
-        }catch (Exception e){
-            ThreadUtils.sleep(Constants.SLEEP_TIME_MILLIS);
-            this.doAck(taskExecutionContext);
+            RetryerUtils.retryCall(() -> {
+                taskCallbackService.sendAck(taskExecutionContext.getTaskInstanceId(),ackCommand);
+                return Boolean.TRUE;
+            });
+            // submit task
+            workerExecService.submit(new TaskExecuteThread(taskExecutionContext, taskCallbackService));
+        } catch (ExecutionException | RetryException e) {
+            logger.error(e.getMessage(), e);
         }
-
-        // submit task
-        workerExecService.submit(new TaskExecuteThread(taskExecutionContext, taskCallbackService));
-    }
-
-    private void doAck(TaskExecutionContext taskExecutionContext){
-        // tell master that task is in executing
-        TaskExecuteAckCommand ackCommand = buildAckCommand(taskExecutionContext);
-        taskCallbackService.sendAck(taskExecutionContext.getTaskInstanceId(), ackCommand.convert2Command());
     }
 
     /**

pom.xml

@@ -118,6 +118,7 @@
         <servlet-api.version>2.5</servlet-api.version>
         <swagger.version>1.9.3</swagger.version>
         <springfox.version>2.9.2</springfox.version>
+        <guava-retry.version>2.0.0</guava-retry.version>
     </properties>
 
     <dependencyManagement>
@@ -544,6 +545,12 @@
                 <artifactId>swagger-bootstrap-ui</artifactId>
                 <version>${swagger.version}</version>
             </dependency>
+
+            <dependency>
+                <groupId>com.github.rholder</groupId>
+                <artifactId>guava-retrying</artifactId>
+                <version>${guava-retry.version}</version>
+            </dependency>
         </dependencies>
     </dependencyManagement>
 
@@ -771,6 +778,7 @@
                         <include>**/common/utils/HttpUtilsTest.java</include>
                         <include>**/common/ConstantsTest.java</include>
                         <include>**/common/utils/HadoopUtils.java</include>
+                        <include>**/common/utils/RetryerUtilsTest.java</include>
                         <include>**/common/plugin/FilePluginManagerTest</include>
                         <include>**/common/plugin/PluginClassLoaderTest</include>
                         <include>**/dao/mapper/AccessTokenMapperTest.java</include>

tools/dependencies/known-dependencies.txt

@@ -209,3 +209,4 @@ xml-apis-1.4.01.jar
 xmlenc-0.52.jar
 xz-1.0.jar
 zookeeper-3.4.14.jar
+guava-retrying-2.0.0.jar