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retry_call_cluster.ts
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retry_call_cluster.ts
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/*
* Licensed to Elasticsearch B.V. under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch B.V. 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.
*/
import { retryWhen, concatMap } from 'rxjs/operators';
import { defer, throwError, iif, timer } from 'rxjs';
import * as legacyElasticsearch from 'elasticsearch';
import { CallAPIOptions } from '.';
import { APICaller } from './api_types';
import { Logger } from '../logging';
const esErrors = legacyElasticsearch.errors;
/**
* Retries the provided Elasticsearch API call when an error such as
* `AuthenticationException` `NoConnections`, `ConnectionFault`,
* `ServiceUnavailable` or `RequestTimeout` are encountered. The API call will
* be retried once a second, indefinitely, until a successful response or a
* different error is received.
*
* @param apiCaller
* @param log
* @param delay
*/
export function migrationsRetryCallCluster(
apiCaller: APICaller,
log: Logger,
delay: number = 2500
) {
const previousErrors: string[] = [];
return (endpoint: string, clientParams: Record<string, any> = {}, options?: CallAPIOptions) => {
return defer(() => apiCaller(endpoint, clientParams, options))
.pipe(
retryWhen((error$) =>
error$.pipe(
concatMap((error, i) => {
if (!previousErrors.includes(error.message)) {
log.warn(`Unable to connect to Elasticsearch. Error: ${error.message}`);
previousErrors.push(error.message);
}
return iif(
() => {
return (
error instanceof esErrors.NoConnections ||
error instanceof esErrors.ConnectionFault ||
error instanceof esErrors.ServiceUnavailable ||
error instanceof esErrors.RequestTimeout ||
error instanceof esErrors.AuthenticationException ||
error instanceof esErrors.AuthorizationException ||
// @ts-ignore
error instanceof esErrors.Gone ||
error?.body?.error?.type === 'snapshot_in_progress_exception'
);
},
timer(delay),
throwError(error)
);
})
)
)
)
.toPromise();
};
}
/**
* Retries the provided Elasticsearch API call when a `NoConnections` error is
* encountered. The API call will be retried once a second, indefinitely, until
* a successful response or a different error is received.
*
* @param apiCaller
*/
export function retryCallCluster(apiCaller: APICaller) {
return (endpoint: string, clientParams: Record<string, any> = {}, options?: CallAPIOptions) => {
return defer(() => apiCaller(endpoint, clientParams, options))
.pipe(
retryWhen((errors) =>
errors.pipe(
concatMap((error, i) =>
iif(
() => error instanceof legacyElasticsearch.errors.NoConnections,
timer(1000),
throwError(error)
)
)
)
)
)
.toPromise();
};
}