org.elasticsearch.xpack.core.ilm.CleanupSnapshotStep 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.action.admin.cluster.snapshots.delete.DeleteSnapshotRequest;
import org.elasticsearch.action.support.master.AcknowledgedResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.metadata.IndexMetadata;
import org.elasticsearch.common.Strings;
import org.elasticsearch.repositories.RepositoryMissingException;
import org.elasticsearch.snapshots.SnapshotMissingException;
import static org.elasticsearch.xpack.core.ilm.LifecycleExecutionState.fromIndexMetadata;
/**
* Deletes the snapshot designated by the repository and snapshot name present in the lifecycle execution state.
*/
public class CleanupSnapshotStep extends AsyncRetryDuringSnapshotActionStep {
public static final String NAME = "cleanup-snapshot";
public CleanupSnapshotStep(StepKey key, StepKey nextStepKey, Client client) {
super(key, nextStepKey, client);
}
@Override
public boolean isRetryable() {
return true;
}
@Override
void performDuringNoSnapshot(IndexMetadata indexMetadata, ClusterState currentClusterState, Listener listener) {
final String indexName = indexMetadata.getIndex().getName();
LifecycleExecutionState lifecycleState = fromIndexMetadata(indexMetadata);
final String repositoryName = lifecycleState.getSnapshotRepository();
// if the snapshot information is missing from the ILM execution state there is nothing to delete so we move on
if (Strings.hasText(repositoryName) == false) {
listener.onResponse(true);
return;
}
final String snapshotName = lifecycleState.getSnapshotName();
if (Strings.hasText(snapshotName) == false) {
listener.onResponse(true);
return;
}
DeleteSnapshotRequest deleteSnapshotRequest = new DeleteSnapshotRequest(repositoryName, snapshotName);
getClient().admin().cluster().deleteSnapshot(deleteSnapshotRequest, new ActionListener() {
@Override
public void onResponse(AcknowledgedResponse acknowledgedResponse) {
if (acknowledgedResponse.isAcknowledged() == false) {
String policyName = indexMetadata.getSettings().get(LifecycleSettings.LIFECYCLE_NAME);
throw new ElasticsearchException("cleanup snapshot step request for repository [" + repositoryName + "] and snapshot " +
"[" + snapshotName + "] policy [" + policyName + "] and index [" + indexName + "] failed to be acknowledged");
}
listener.onResponse(true);
}
@Override
public void onFailure(Exception e) {
if (e instanceof SnapshotMissingException) {
// during the happy flow we generate a snapshot name and that snapshot doesn't exist in the repository
listener.onResponse(true);
} else {
if (e instanceof RepositoryMissingException) {
String policyName = indexMetadata.getSettings().get(LifecycleSettings.LIFECYCLE_NAME);
listener.onFailure(new IllegalStateException("repository [" + repositoryName + "] is missing. [" + policyName +
"] policy for index [" + indexName + "] cannot continue until the repository is created", e));
} else {
listener.onFailure(e);
}
}
}
});
}
}