[ML] retry bulk indexing of state docs (elastic#50149)

This exchanges the direct use of the `Client` for `ResultsPersisterService`. State doc persistence will now retry. Failures to persist state will still not throw, but will be audited and logged.

x-pack/plugin/ml/src/main/java/org/elasticsearch/xpack/ml/MachineLearning.java

@@ -559,11 +559,17 @@ public Collection<Object> createComponents(Client client, ClusterService cluster
                     environment,
                     settings,
                     nativeController,
-                    client,
-                    clusterService);
+                    clusterService,
+                    resultsPersisterService,
+                    anomalyDetectionAuditor);
                 normalizerProcessFactory = new NativeNormalizerProcessFactory(environment, nativeController, clusterService);
-                analyticsProcessFactory = new NativeAnalyticsProcessFactory(environment, client, nativeController, clusterService,
-                    xContentRegistry);
+                analyticsProcessFactory = new NativeAnalyticsProcessFactory(
+                    environment,
+                    nativeController,
+                    clusterService,
+                    xContentRegistry,
+                    resultsPersisterService,
+                    dataFrameAnalyticsAuditor);
                 memoryEstimationProcessFactory =
                     new NativeMemoryUsageEstimationProcessFactory(environment, nativeController, clusterService);
                 mlController = nativeController;

x-pack/plugin/ml/src/main/java/org/elasticsearch/xpack/ml/dataframe/process/NativeAnalyticsProcessFactory.java

@@ -7,7 +7,6 @@
 
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
-import org.elasticsearch.client.Client;
 import org.elasticsearch.cluster.service.ClusterService;
 import org.elasticsearch.common.Nullable;
 import org.elasticsearch.common.bytes.BytesReference;
@@ -20,10 +19,12 @@
 import org.elasticsearch.xpack.core.ml.utils.ExceptionsHelper;
 import org.elasticsearch.xpack.ml.MachineLearning;
 import org.elasticsearch.xpack.ml.dataframe.process.results.AnalyticsResult;
+import org.elasticsearch.xpack.ml.notifications.DataFrameAnalyticsAuditor;
 import org.elasticsearch.xpack.ml.process.IndexingStateProcessor;
 import org.elasticsearch.xpack.ml.process.NativeController;
 import org.elasticsearch.xpack.ml.process.ProcessPipes;
 import org.elasticsearch.xpack.ml.utils.NamedPipeHelper;
+import org.elasticsearch.xpack.ml.utils.persistence.ResultsPersisterService;
 
 import java.io.IOException;
 import java.nio.file.Path;
@@ -40,18 +41,24 @@ public class NativeAnalyticsProcessFactory implements AnalyticsProcessFactory<An
 
     private static final NamedPipeHelper NAMED_PIPE_HELPER = new NamedPipeHelper();
 
-    private final Client client;
     private final Environment env;
     private final NativeController nativeController;
     private final NamedXContentRegistry namedXContentRegistry;
+    private final ResultsPersisterService resultsPersisterService;
+    private final DataFrameAnalyticsAuditor auditor;
     private volatile Duration processConnectTimeout;
 
-    public NativeAnalyticsProcessFactory(Environment env, Client client, NativeController nativeController, ClusterService clusterService,
-                                         NamedXContentRegistry namedXContentRegistry) {
+    public NativeAnalyticsProcessFactory(Environment env,
+                                         NativeController nativeController,
+                                         ClusterService clusterService,
+                                         NamedXContentRegistry namedXContentRegistry,
+                                         ResultsPersisterService resultsPersisterService,
+                                         DataFrameAnalyticsAuditor auditor) {
         this.env = Objects.requireNonNull(env);
-        this.client = Objects.requireNonNull(client);
         this.nativeController = Objects.requireNonNull(nativeController);
         this.namedXContentRegistry = Objects.requireNonNull(namedXContentRegistry);
+        this.auditor = auditor;
+        this.resultsPersisterService = resultsPersisterService;
         setProcessConnectTimeout(MachineLearning.PROCESS_CONNECT_TIMEOUT.get(env.settings()));
         clusterService.getClusterSettings().addSettingsUpdateConsumer(MachineLearning.PROCESS_CONNECT_TIMEOUT,
             this::setProcessConnectTimeout);
@@ -96,7 +103,7 @@ public NativeAnalyticsProcess createAnalyticsProcess(DataFrameAnalyticsConfig co
     private void startProcess(DataFrameAnalyticsConfig config, ExecutorService executorService, ProcessPipes processPipes,
                                                 NativeAnalyticsProcess process) {
         if (config.getAnalysis().persistsState()) {
-            IndexingStateProcessor stateProcessor = new IndexingStateProcessor(client, config.getId());
+            IndexingStateProcessor stateProcessor = new IndexingStateProcessor(config.getId(), resultsPersisterService, auditor);
             process.start(executorService, stateProcessor, processPipes.getPersistStream().get());
         } else {
             process.start(executorService);

x-pack/plugin/ml/src/main/java/org/elasticsearch/xpack/ml/job/process/autodetect/NativeAutodetectProcessFactory.java

@@ -7,7 +7,6 @@
 
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
-import org.elasticsearch.client.Client;
 import org.elasticsearch.cluster.service.ClusterService;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.common.unit.TimeValue;
@@ -20,11 +19,13 @@
 import org.elasticsearch.xpack.ml.MachineLearning;
 import org.elasticsearch.xpack.ml.job.process.autodetect.params.AutodetectParams;
 import org.elasticsearch.xpack.ml.job.results.AutodetectResult;
+import org.elasticsearch.xpack.ml.notifications.AnomalyDetectionAuditor;
 import org.elasticsearch.xpack.ml.process.IndexingStateProcessor;
 import org.elasticsearch.xpack.ml.process.NativeController;
 import org.elasticsearch.xpack.ml.process.ProcessPipes;
 import org.elasticsearch.xpack.ml.process.ProcessResultsParser;
 import org.elasticsearch.xpack.ml.utils.NamedPipeHelper;
+import org.elasticsearch.xpack.ml.utils.persistence.ResultsPersisterService;
 
 import java.io.IOException;
 import java.nio.file.Path;
@@ -40,20 +41,26 @@ public class NativeAutodetectProcessFactory implements AutodetectProcessFactory
     private static final Logger LOGGER = LogManager.getLogger(NativeAutodetectProcessFactory.class);
     private static final NamedPipeHelper NAMED_PIPE_HELPER = new NamedPipeHelper();
 
-    private final Client client;
     private final Environment env;
     private final Settings settings;
     private final NativeController nativeController;
     private final ClusterService clusterService;
+    private final ResultsPersisterService resultsPersisterService;
+    private final AnomalyDetectionAuditor auditor;
     private volatile Duration processConnectTimeout;
 
-    public NativeAutodetectProcessFactory(Environment env, Settings settings, NativeController nativeController, Client client,
-                                          ClusterService clusterService) {
+    public NativeAutodetectProcessFactory(Environment env,
+                                          Settings settings,
+                                          NativeController nativeController,
+                                          ClusterService clusterService,
+                                          ResultsPersisterService resultsPersisterService,
+                                          AnomalyDetectionAuditor auditor) {
         this.env = Objects.requireNonNull(env);
         this.settings = Objects.requireNonNull(settings);
         this.nativeController = Objects.requireNonNull(nativeController);
-        this.client = client;
         this.clusterService = clusterService;
+        this.resultsPersisterService = resultsPersisterService;
+        this.auditor = auditor;
         setProcessConnectTimeout(MachineLearning.PROCESS_CONNECT_TIMEOUT.get(settings));
         clusterService.getClusterSettings().addSettingsUpdateConsumer(MachineLearning.PROCESS_CONNECT_TIMEOUT,
             this::setProcessConnectTimeout);
@@ -78,7 +85,7 @@ public AutodetectProcess createAutodetectProcess(Job job,
         // The extra 1 is the control field
         int numberOfFields = job.allInputFields().size() + (includeTokensField ? 1 : 0) + 1;
 
-        IndexingStateProcessor stateProcessor = new IndexingStateProcessor(client, job.getId());
+        IndexingStateProcessor stateProcessor = new IndexingStateProcessor(job.getId(), resultsPersisterService, auditor);
         ProcessResultsParser<AutodetectResult> resultsParser = new ProcessResultsParser<>(AutodetectResult.PARSER,
             NamedXContentRegistry.EMPTY);
         NativeAutodetectProcess autodetect = new NativeAutodetectProcess(

x-pack/plugin/ml/src/main/java/org/elasticsearch/xpack/ml/process/IndexingStateProcessor.java

@@ -7,21 +7,22 @@
 
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
+import org.apache.logging.log4j.message.ParameterizedMessage;
 import org.elasticsearch.action.bulk.BulkRequest;
-import org.elasticsearch.client.Client;
 import org.elasticsearch.common.bytes.BytesArray;
 import org.elasticsearch.common.bytes.BytesReference;
 import org.elasticsearch.common.bytes.CompositeBytesReference;
-import org.elasticsearch.common.util.concurrent.ThreadContext;
 import org.elasticsearch.common.xcontent.XContentType;
+import org.elasticsearch.xpack.core.common.notifications.AbstractAuditMessage;
+import org.elasticsearch.xpack.core.common.notifications.AbstractAuditor;
 import org.elasticsearch.xpack.core.ml.job.persistence.AnomalyDetectorsIndex;
+import org.elasticsearch.xpack.ml.utils.persistence.ResultsPersisterService;
 
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.List;
 
-import static org.elasticsearch.xpack.core.ClientHelper.ML_ORIGIN;
 
 /**
  * Reads state documents of a stream, splits them and persists to an index via a bulk request
@@ -32,12 +33,16 @@ public class IndexingStateProcessor implements StateProcessor {
 
     private static final int READ_BUF_SIZE = 8192;
 
-    private final Client client;
     private final String jobId;
+    private final AbstractAuditor<? extends AbstractAuditMessage> auditor;
+    private final ResultsPersisterService resultsPersisterService;
 
-    public IndexingStateProcessor(Client client, String jobId) {
-        this.client = client;
+    public IndexingStateProcessor(String jobId,
+                                  ResultsPersisterService resultsPersisterService,
+                                  AbstractAuditor<? extends AbstractAuditMessage> auditor) {
         this.jobId = jobId;
+        this.resultsPersisterService = resultsPersisterService;
+        this.auditor = auditor;
     }
 
     @Override
@@ -98,8 +103,15 @@ void persist(BytesReference bytes) throws IOException {
         bulkRequest.add(bytes, AnomalyDetectorsIndex.jobStateIndexWriteAlias(), XContentType.JSON);
         if (bulkRequest.numberOfActions() > 0) {
             LOGGER.trace("[{}] Persisting job state document", jobId);
-            try (ThreadContext.StoredContext ignore = client.threadPool().getThreadContext().stashWithOrigin(ML_ORIGIN)) {
-                client.bulk(bulkRequest).actionGet();
+            try {
+                resultsPersisterService.bulkIndexWithRetry(bulkRequest,
+                    jobId,
+                    () -> true,
+                    (msg) -> auditor.warning(jobId, "Bulk indexing of state failed " + msg));
+            } catch (Exception ex) {
+                String msg = "failed indexing updated state docs";
+                LOGGER.error(() -> new ParameterizedMessage("[{}] {}", jobId, msg), ex);
+                auditor.error(jobId, msg + " error: " + ex.getMessage());
             }
         }
     }

x-pack/plugin/ml/src/test/java/org/elasticsearch/xpack/ml/job/process/autodetect/NativeAutodetectProcessFactoryTests.java

@@ -5,7 +5,6 @@
  */
 package org.elasticsearch.xpack.ml.job.process.autodetect;
 
-import org.elasticsearch.client.Client;
 import org.elasticsearch.cluster.service.ClusterService;
 import org.elasticsearch.common.settings.ClusterSettings;
 import org.elasticsearch.common.settings.Settings;
@@ -16,8 +15,10 @@
 import org.elasticsearch.xpack.core.ml.job.config.Job;
 import org.elasticsearch.xpack.ml.MachineLearning;
 import org.elasticsearch.xpack.ml.job.process.autodetect.params.AutodetectParams;
+import org.elasticsearch.xpack.ml.notifications.AnomalyDetectionAuditor;
 import org.elasticsearch.xpack.ml.process.NativeController;
 import org.elasticsearch.xpack.ml.process.ProcessPipes;
+import org.elasticsearch.xpack.ml.utils.persistence.ResultsPersisterService;
 
 import java.io.IOException;
 import java.time.Duration;
@@ -41,7 +42,8 @@ public void testSetProcessConnectTimeout() throws IOException {
             .build();
         Environment env = TestEnvironment.newEnvironment(settings);
         NativeController nativeController = mock(NativeController.class);
-        Client client = mock(Client.class);
+        ResultsPersisterService resultsPersisterService = mock(ResultsPersisterService.class);
+        AnomalyDetectionAuditor anomalyDetectionAuditor = mock(AnomalyDetectionAuditor.class);
         ClusterSettings clusterSettings = new ClusterSettings(settings,
             Set.of(MachineLearning.PROCESS_CONNECT_TIMEOUT, AutodetectBuilder.MAX_ANOMALY_RECORDS_SETTING_DYNAMIC));
         ClusterService clusterService = mock(ClusterService.class);
@@ -51,8 +53,13 @@ public void testSetProcessConnectTimeout() throws IOException {
         AutodetectParams autodetectParams = mock(AutodetectParams.class);
         ProcessPipes processPipes = mock(ProcessPipes.class);
 
-        NativeAutodetectProcessFactory nativeAutodetectProcessFactory =
-            new NativeAutodetectProcessFactory(env, settings, nativeController, client, clusterService);
+        NativeAutodetectProcessFactory nativeAutodetectProcessFactory = new NativeAutodetectProcessFactory(
+            env,
+            settings,
+            nativeController,
+            clusterService,
+            resultsPersisterService,
+            anomalyDetectionAuditor);
         nativeAutodetectProcessFactory.setProcessConnectTimeout(TimeValue.timeValueSeconds(timeoutSeconds));
         nativeAutodetectProcessFactory.createNativeProcess(job, autodetectParams, processPipes, Collections.emptyList());
 

x-pack/plugin/ml/src/test/java/org/elasticsearch/xpack/ml/process/IndexingStateProcessorTests.java

@@ -6,16 +6,16 @@
 package org.elasticsearch.xpack.ml.process;
 
 import com.carrotsearch.randomizedtesting.annotations.Timeout;
-import org.elasticsearch.action.ActionFuture;
 import org.elasticsearch.action.bulk.BulkRequest;
 import org.elasticsearch.action.bulk.BulkResponse;
-import org.elasticsearch.client.Client;
 import org.elasticsearch.common.bytes.BytesReference;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.common.util.concurrent.ThreadContext;
 import org.elasticsearch.mock.orig.Mockito;
 import org.elasticsearch.test.ESTestCase;
 import org.elasticsearch.threadpool.ThreadPool;
+import org.elasticsearch.xpack.ml.notifications.AnomalyDetectionAuditor;
+import org.elasticsearch.xpack.ml.utils.persistence.ResultsPersisterService;
 import org.junit.After;
 import org.junit.Before;
 import org.mockito.ArgumentCaptor;
@@ -54,24 +54,22 @@ public class IndexingStateProcessorTests extends ESTestCase {
     private static final int NUM_LARGE_DOCS = 2;
     private static final int LARGE_DOC_SIZE = 1000000;
 
-    private Client client;
     private IndexingStateProcessor stateProcessor;
+    private ResultsPersisterService resultsPersisterService;
 
     @Before
-    public void initialize() throws IOException {
-        client = mock(Client.class);
-        @SuppressWarnings("unchecked")
-        ActionFuture<BulkResponse> bulkResponseFuture = mock(ActionFuture.class);
-        stateProcessor = spy(new IndexingStateProcessor(client, JOB_ID));
-        when(client.bulk(any(BulkRequest.class))).thenReturn(bulkResponseFuture);
+    public void initialize() {
+        resultsPersisterService = mock(ResultsPersisterService.class);
+        AnomalyDetectionAuditor auditor = mock(AnomalyDetectionAuditor.class);
+        stateProcessor = spy(new IndexingStateProcessor(JOB_ID, resultsPersisterService, auditor));
+        when(resultsPersisterService.bulkIndexWithRetry(any(BulkRequest.class), any(), any(), any())).thenReturn(mock(BulkResponse.class));
         ThreadPool threadPool = mock(ThreadPool.class);
-        when(client.threadPool()).thenReturn(threadPool);
         when(threadPool.getThreadContext()).thenReturn(new ThreadContext(Settings.EMPTY));
     }
 
     @After
     public void verifyNoMoreClientInteractions() {
-        Mockito.verifyNoMoreInteractions(client);
+        Mockito.verifyNoMoreInteractions(resultsPersisterService);
     }
 
     public void testStateRead() throws IOException {
@@ -85,8 +83,7 @@ public void testStateRead() throws IOException {
         assertEquals(threeStates[0], capturedBytes.get(0).utf8ToString());
         assertEquals(threeStates[1], capturedBytes.get(1).utf8ToString());
         assertEquals(threeStates[2], capturedBytes.get(2).utf8ToString());
-        verify(client, times(3)).bulk(any(BulkRequest.class));
-        verify(client, times(3)).threadPool();
+        verify(resultsPersisterService, times(3)).bulkIndexWithRetry(any(BulkRequest.class), any(), any(), any());
     }
 
     public void testStateReadGivenConsecutiveZeroBytes() throws IOException {
@@ -96,7 +93,7 @@ public void testStateReadGivenConsecutiveZeroBytes() throws IOException {
         stateProcessor.process(stream);
 
         verify(stateProcessor, never()).persist(any());
-        Mockito.verifyNoMoreInteractions(client);
+        Mockito.verifyNoMoreInteractions(resultsPersisterService);
     }
 
     public void testStateReadGivenConsecutiveSpacesFollowedByZeroByte() throws IOException {
@@ -106,7 +103,7 @@ public void testStateReadGivenConsecutiveSpacesFollowedByZeroByte() throws IOExc
         stateProcessor.process(stream);
 
         verify(stateProcessor, times(1)).persist(any());
-        Mockito.verifyNoMoreInteractions(client);
+        Mockito.verifyNoMoreInteractions(resultsPersisterService);
     }
 
     /**
@@ -128,7 +125,6 @@ public void testLargeStateRead() throws Exception {
         ByteArrayInputStream stream = new ByteArrayInputStream(builder.toString().getBytes(StandardCharsets.UTF_8));
         stateProcessor.process(stream);
         verify(stateProcessor, times(NUM_LARGE_DOCS)).persist(any());
-        verify(client, times(NUM_LARGE_DOCS)).bulk(any(BulkRequest.class));
-        verify(client, times(NUM_LARGE_DOCS)).threadPool();
+        verify(resultsPersisterService, times(NUM_LARGE_DOCS)).bulkIndexWithRetry(any(BulkRequest.class), any(), any(), any());
     }
 }