merge: try to avoid insert
races in FederatedInstanceService
(!683)
View MR for information: https://activitypub.software/TransFem-org/Sharkey/-/merge_requests/683 Approved-by: Hazelnoot <acomputerdog@gmail.com> Approved-by: Marie <github@yuugi.dev>
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commit
45974a53f8
1 changed files with 20 additions and 5 deletions
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@ -12,6 +12,8 @@ import { IdService } from '@/core/IdService.js';
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import { DI } from '@/di-symbols.js';
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import { UtilityService } from '@/core/UtilityService.js';
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import { bindThis } from '@/decorators.js';
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import { QueryFailedError } from 'typeorm';
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import { isDuplicateKeyValueError } from '@/misc/is-duplicate-key-value-error.js';
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@Injectable()
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export class FederatedInstanceService implements OnApplicationShutdown {
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@ -56,11 +58,24 @@ export class FederatedInstanceService implements OnApplicationShutdown {
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const index = await this.instancesRepository.findOneBy({ host });
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if (index == null) {
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const i = await this.instancesRepository.insertOne({
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id: this.idService.gen(),
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host,
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firstRetrievedAt: new Date(),
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});
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let i;
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try {
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i = await this.instancesRepository.insertOne({
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id: this.idService.gen(),
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host,
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firstRetrievedAt: new Date(),
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});
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} catch (e: unknown) {
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if (e instanceof QueryFailedError) {
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if (isDuplicateKeyValueError(e)) {
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i = await this.instancesRepository.findOneBy({ host });
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}
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}
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if (i == null) {
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throw e;
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}
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}
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this.federatedInstanceCache.set(host, i);
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return i;
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