org.elasticsearch.xpack.core.ilm.PauseFollowerIndexStep Maven / Gradle / Ivy
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0; you may not use this file except in compliance with the Elastic License
* 2.0.
*/
package org.elasticsearch.xpack.core.ilm;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.client.Client;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.persistent.PersistentTasksCustomMetadata;
import org.elasticsearch.xpack.core.ccr.action.PauseFollowAction;
import org.elasticsearch.xpack.core.ccr.action.ShardFollowTask;
import java.util.List;
import java.util.stream.Collectors;
final class PauseFollowerIndexStep extends AbstractUnfollowIndexStep {
static final String NAME = "pause-follower-index";
PauseFollowerIndexStep(StepKey key, StepKey nextStepKey, Client client) {
super(key, nextStepKey, client);
}
@Override
public boolean isRetryable() {
return true;
}
@Override
void innerPerformAction(String followerIndex, ClusterState currentClusterState, Listener listener) {
PersistentTasksCustomMetadata persistentTasksMetadata = currentClusterState.metadata().custom(PersistentTasksCustomMetadata.TYPE);
if (persistentTasksMetadata == null) {
listener.onResponse(true);
return;
}
List> shardFollowTasks = persistentTasksMetadata.tasks().stream()
.filter(persistentTask -> ShardFollowTask.NAME.equals(persistentTask.getTaskName()))
.filter(persistentTask -> {
ShardFollowTask shardFollowTask = (ShardFollowTask) persistentTask.getParams();
return shardFollowTask.getFollowShardId().getIndexName().equals(followerIndex);
})
.collect(Collectors.toList());
if (shardFollowTasks.isEmpty()) {
listener.onResponse(true);
return;
}
PauseFollowAction.Request request = new PauseFollowAction.Request(followerIndex);
getClient().execute(PauseFollowAction.INSTANCE, request, ActionListener.wrap(
r -> {
if (r.isAcknowledged() == false) {
throw new ElasticsearchException("pause follow request failed to be acknowledged");
}
listener.onResponse(true);
},
listener::onFailure
));
}
}