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[8.18] Retry ILM async action after reindexing data stream (elastic#124149) (elastic#124270)
* Retry ILM async action after reindexing data stream (elastic#124149) When reindexing a data stream, the ILM metadata is copied from the index metadata of the source index to the destination index. But the ILM state of the new index can be stuck if the source index was in an AsyncAction at the time of reindexing. To un-stick the new index, we call TransportRetryAction to retry the AsyncAction. In the past this action would only run if the index were in the error phase. This change includes an update to TransportRetryAction, which allows it to be run when the index is not in an error phase, if the parameter requireError is set to false. (cherry picked from commit 10a8dcf) # Conflicts: # server/src/main/java/org/elasticsearch/TransportVersions.java # x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/security/user/InternalUsers.java # x-pack/plugin/ilm/src/main/java/org/elasticsearch/xpack/ilm/action/TransportRetryAction.java # x-pack/qa/rolling-upgrade/src/test/java/org/elasticsearch/upgrades/DataStreamsUpgradeIT.java * index mode cannot be set on v7 indices
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‎docs/changelog/124149.yaml‎

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pr: 124149
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summary: Retry ILM async action after reindexing data stream
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area: Data streams
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type: enhancement
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issues: []

‎server/src/main/java/org/elasticsearch/TransportVersions.java‎

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@@ -183,6 +183,7 @@ static TransportVersion def(int id) {
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public static final TransportVersion INFERENCE_REQUEST_ADAPTIVE_RATE_LIMITING = def(8_839_0_00);
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public static final TransportVersion ML_INFERENCE_IBM_WATSONX_RERANK_ADDED = def(8_840_00_0);
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public static final TransportVersion REMOVE_ALL_APPLICABLE_SELECTOR_BACKPORT_8_18 = def(8_840_00_1);
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public static final TransportVersion RETRY_ILM_ASYNC_ACTION_REQUIRE_ERROR_8_18 = def(8_840_0_02);
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/*
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* STOP! READ THIS FIRST! No, really,

‎x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/ilm/action/RetryActionRequest.java‎

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/*
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* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
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* or more contributor license agreements. Licensed under the Elastic License
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* 2.0; you may not use this file except in compliance with the Elastic License
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* 2.0.
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*/
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package org.elasticsearch.xpack.core.ilm.action;
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import org.elasticsearch.TransportVersions;
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import org.elasticsearch.action.ActionRequestValidationException;
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import org.elasticsearch.action.IndicesRequest;
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import org.elasticsearch.action.support.IndicesOptions;
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import org.elasticsearch.action.support.master.AcknowledgedRequest;
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import org.elasticsearch.common.io.stream.StreamInput;
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import org.elasticsearch.common.io.stream.StreamOutput;
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import org.elasticsearch.core.TimeValue;
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import java.io.IOException;
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import java.util.Arrays;
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import java.util.Objects;
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public class RetryActionRequest extends AcknowledgedRequest<RetryActionRequest> implements IndicesRequest.Replaceable {
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private String[] indices;
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private IndicesOptions indicesOptions = IndicesOptions.strictExpandOpen();
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private boolean requireError = true;
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public RetryActionRequest(TimeValue masterNodeTimeout, TimeValue ackTimeout, String... indices) {
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super(masterNodeTimeout, ackTimeout);
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this.indices = indices;
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}
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public RetryActionRequest(StreamInput in) throws IOException {
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super(in);
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this.indices = in.readStringArray();
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this.indicesOptions = IndicesOptions.readIndicesOptions(in);
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if (in.getTransportVersion().onOrAfter(TransportVersions.RETRY_ILM_ASYNC_ACTION_REQUIRE_ERROR_8_18)) {
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this.requireError = in.readBoolean();
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}
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}
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@Override
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public RetryActionRequest indices(String... indices) {
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this.indices = indices;
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return this;
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}
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@Override
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public String[] indices() {
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return indices;
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}
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@Override
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public IndicesOptions indicesOptions() {
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return indicesOptions;
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}
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public RetryActionRequest indicesOptions(IndicesOptions indicesOptions) {
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this.indicesOptions = indicesOptions;
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return this;
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}
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public void requireError(boolean requireError) {
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this.requireError = requireError;
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}
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public boolean requireError() {
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return requireError;
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}
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@Override
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public ActionRequestValidationException validate() {
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return null;
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}
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@Override
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public void writeTo(StreamOutput out) throws IOException {
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super.writeTo(out);
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out.writeStringArray(indices);
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indicesOptions.writeIndicesOptions(out);
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if (out.getTransportVersion().onOrAfter(TransportVersions.RETRY_ILM_ASYNC_ACTION_REQUIRE_ERROR_8_18)) {
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out.writeBoolean(requireError);
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}
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}
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@Override
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public int hashCode() {
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return Objects.hash(Arrays.hashCode(indices), indicesOptions, requireError);
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}
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@Override
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public boolean equals(Object obj) {
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if (obj == null) {
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return false;
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}
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if (obj.getClass() != getClass()) {
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return false;
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}
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RetryActionRequest other = (RetryActionRequest) obj;
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return Objects.deepEquals(indices, other.indices)
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&& Objects.equals(indicesOptions, other.indicesOptions)
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&& requireError == other.requireError;
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}
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}

‎x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/security/user/InternalUsers.java‎

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@@ -31,6 +31,7 @@
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import org.elasticsearch.index.reindex.ReindexAction;
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import org.elasticsearch.xpack.core.XPackPlugin;
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import org.elasticsearch.xpack.core.frozen.action.FreezeIndexAction;
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import org.elasticsearch.xpack.core.ilm.action.ILMActions;
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import org.elasticsearch.xpack.core.security.authz.RoleDescriptor;
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import org.elasticsearch.xpack.core.security.support.MetadataUtils;
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@@ -224,7 +225,8 @@ public class InternalUsers {
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TransportBulkAction.NAME,
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TransportIndexAction.NAME,
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TransportSearchScrollAction.TYPE.name(),
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ModifyDataStreamsAction.NAME
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ModifyDataStreamsAction.NAME,
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ILMActions.RETRY.name()
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)
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.allowRestrictedIndices(false)
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.build() },

‎x-pack/plugin/ilm/src/main/java/org/elasticsearch/xpack/ilm/IndexLifecycleRunner.java‎

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@@ -322,7 +322,11 @@ void maybeRunAsyncAction(ClusterState currentState, IndexMetadata indexMetadata,
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logger.warn("current step [{}] for index [{}] with policy [{}] is not recognized", currentStepKey, index, policy);
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return;
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}
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if (expectedStepKey.phase() == null && expectedStepKey.name() == null && expectedStepKey.action() == null) {
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// ILM is stopped, so do not try to run async action
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logger.debug("expected step for index [{}] with policy [{}] is [{}], not running async action", index, policy, expectedStepKey);
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return;
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}
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logger.trace(
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"[{}] maybe running async action step ({}) with current step {}",
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index,

‎x-pack/plugin/ilm/src/main/java/org/elasticsearch/xpack/ilm/action/RestRetryAction.java‎

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import org.elasticsearch.rest.RestRequest;
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import org.elasticsearch.rest.action.RestToXContentListener;
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import org.elasticsearch.xpack.core.ilm.action.ILMActions;
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import org.elasticsearch.xpack.core.ilm.action.RetryActionRequest;
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import java.util.List;
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@Override
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protected RestChannelConsumer prepareRequest(RestRequest restRequest, NodeClient client) {
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final var indices = Strings.splitStringByCommaToArray(restRequest.param("index"));
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final var request = new TransportRetryAction.Request(getMasterNodeTimeout(restRequest), getAckTimeout(restRequest), indices);
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final var request = new RetryActionRequest(getMasterNodeTimeout(restRequest), getAckTimeout(restRequest), indices);
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request.indices(indices);
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request.indicesOptions(IndicesOptions.fromRequest(restRequest, IndicesOptions.strictExpandOpen()));
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return channel -> client.execute(ILMActions.RETRY, request, new RestToXContentListener<>(channel));

‎x-pack/plugin/ilm/src/main/java/org/elasticsearch/xpack/ilm/action/TransportRetryAction.java‎

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@@ -10,11 +10,7 @@
1010
import org.apache.logging.log4j.LogManager;
1111
import org.apache.logging.log4j.Logger;
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import org.elasticsearch.action.ActionListener;
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import org.elasticsearch.action.ActionRequestValidationException;
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import org.elasticsearch.action.IndicesRequest;
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import org.elasticsearch.action.support.ActionFilters;
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import org.elasticsearch.action.support.IndicesOptions;
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import org.elasticsearch.action.support.master.AcknowledgedRequest;
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import org.elasticsearch.action.support.master.AcknowledgedResponse;
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import org.elasticsearch.action.support.master.TransportMasterNodeAction;
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import org.elasticsearch.cluster.AckedClusterStateUpdateTask;
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import org.elasticsearch.cluster.metadata.IndexNameExpressionResolver;
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import org.elasticsearch.cluster.metadata.LifecycleExecutionState;
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import org.elasticsearch.cluster.service.ClusterService;
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import org.elasticsearch.common.io.stream.StreamInput;
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import org.elasticsearch.common.io.stream.StreamOutput;
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import org.elasticsearch.common.util.concurrent.EsExecutors;
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import org.elasticsearch.core.SuppressForbidden;
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import org.elasticsearch.core.TimeValue;
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import org.elasticsearch.injection.guice.Inject;
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import org.elasticsearch.tasks.Task;
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import org.elasticsearch.threadpool.ThreadPool;
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import org.elasticsearch.transport.TransportService;
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import org.elasticsearch.xpack.core.ilm.Step.StepKey;
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import org.elasticsearch.xpack.core.ilm.action.ILMActions;
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import org.elasticsearch.xpack.core.ilm.action.RetryActionRequest;
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import org.elasticsearch.xpack.ilm.IndexLifecycleService;
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42-
import java.io.IOException;
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import java.util.Arrays;
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import java.util.Objects;
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public class TransportRetryAction extends TransportMasterNodeAction<TransportRetryAction.Request, AcknowledgedResponse> {
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public class TransportRetryAction extends TransportMasterNodeAction<RetryActionRequest, AcknowledgedResponse> {
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4838
private static final Logger logger = LogManager.getLogger(TransportRetryAction.class);
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@@ -64,15 +54,25 @@ public TransportRetryAction(
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clusterService,
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threadPool,
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actionFilters,
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Request::new,
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RetryActionRequest::new,
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AcknowledgedResponse::readFrom,
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EsExecutors.DIRECT_EXECUTOR_SERVICE
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);
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this.indexLifecycleService = indexLifecycleService;
7262
}
7363

7464
@Override
75-
protected void masterOperation(Task task, Request request, ClusterState state, ActionListener<AcknowledgedResponse> listener) {
65+
protected void masterOperation(
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Task task,
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RetryActionRequest request,
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ClusterState state,
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ActionListener<AcknowledgedResponse> listener
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) {
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if (request.requireError() == false) {
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maybeRunAsyncAction(state, request.indices());
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listener.onResponse(AcknowledgedResponse.TRUE);
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return;
75+
}
7676
submitUnbatchedTask("ilm-re-run", new AckedClusterStateUpdateTask(request, listener) {
7777
@Override
7878
public ClusterState execute(ClusterState currentState) {
@@ -81,101 +81,33 @@ public ClusterState execute(ClusterState currentState) {
8181

8282
@Override
8383
public void clusterStateProcessed(ClusterState oldState, ClusterState newState) {
84-
for (String index : request.indices()) {
85-
IndexMetadata idxMeta = newState.metadata().index(index);
86-
LifecycleExecutionState lifecycleState = idxMeta.getLifecycleExecutionState();
87-
StepKey retryStep = new StepKey(lifecycleState.phase(), lifecycleState.action(), lifecycleState.step());
88-
if (idxMeta == null) {
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// The index has somehow been deleted - there shouldn't be any opportunity for this to happen, but just in case.
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logger.debug(
91-
"index ["
92-
+ index
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+ "] has been deleted after moving to step ["
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+ lifecycleState.step()
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+ "], skipping async action check"
96-
);
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return;
98-
}
99-
indexLifecycleService.maybeRunAsyncAction(newState, idxMeta, retryStep);
100-
}
84+
maybeRunAsyncAction(newState, request.indices());
10185
}
10286
});
10387
}
10488

89+
private void maybeRunAsyncAction(ClusterState state, String[] indices) {
90+
for (String index : indices) {
91+
IndexMetadata idxMeta = state.metadata().index(index);
92+
if (idxMeta == null) {
93+
// The index has somehow been deleted - there shouldn't be any opportunity for this to happen, but just in case.
94+
logger.debug("index [" + index + "] has been deleted, skipping async action check");
95+
return;
96+
}
97+
LifecycleExecutionState lifecycleState = idxMeta.getLifecycleExecutionState();
98+
StepKey retryStep = new StepKey(lifecycleState.phase(), lifecycleState.action(), lifecycleState.step());
99+
indexLifecycleService.maybeRunAsyncAction(state, idxMeta, retryStep);
100+
}
101+
}
102+
105103
@SuppressForbidden(reason = "legacy usage of unbatched task") // TODO add support for batching here
106104
private void submitUnbatchedTask(@SuppressWarnings("SameParameterValue") String source, ClusterStateUpdateTask task) {
107105
clusterService.submitUnbatchedStateUpdateTask(source, task);
108106
}
109107

110108
@Override
111-
protected ClusterBlockException checkBlock(Request request, ClusterState state) {
109+
protected ClusterBlockException checkBlock(RetryActionRequest request, ClusterState state) {
112110
return state.blocks().globalBlockedException(ClusterBlockLevel.METADATA_WRITE);
113111
}
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115-
public static class Request extends AcknowledgedRequest<Request> implements IndicesRequest.Replaceable {
116-
private String[] indices;
117-
private IndicesOptions indicesOptions = IndicesOptions.strictExpandOpen();
118-
119-
public Request(TimeValue masterNodeTimeout, TimeValue ackTimeout, String... indices) {
120-
super(masterNodeTimeout, ackTimeout);
121-
this.indices = indices;
122-
}
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124-
public Request(StreamInput in) throws IOException {
125-
super(in);
126-
this.indices = in.readStringArray();
127-
this.indicesOptions = IndicesOptions.readIndicesOptions(in);
128-
}
129-
130-
@Override
131-
public Request indices(String... indices) {
132-
this.indices = indices;
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return this;
134-
}
135-
136-
@Override
137-
public String[] indices() {
138-
return indices;
139-
}
140-
141-
@Override
142-
public IndicesOptions indicesOptions() {
143-
return indicesOptions;
144-
}
145-
146-
public Request indicesOptions(IndicesOptions indicesOptions) {
147-
this.indicesOptions = indicesOptions;
148-
return this;
149-
}
150-
151-
@Override
152-
public ActionRequestValidationException validate() {
153-
return null;
154-
}
155-
156-
@Override
157-
public void writeTo(StreamOutput out) throws IOException {
158-
super.writeTo(out);
159-
out.writeStringArray(indices);
160-
indicesOptions.writeIndicesOptions(out);
161-
}
162-
163-
@Override
164-
public int hashCode() {
165-
return Objects.hash(Arrays.hashCode(indices), indicesOptions);
166-
}
167-
168-
@Override
169-
public boolean equals(Object obj) {
170-
if (obj == null) {
171-
return false;
172-
}
173-
if (obj.getClass() != getClass()) {
174-
return false;
175-
}
176-
Request other = (Request) obj;
177-
return Objects.deepEquals(indices, other.indices) && Objects.equals(indicesOptions, other.indicesOptions);
178-
}
179-
180-
}
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}

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