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Search: fix cache in the frontend search engine (#55681)

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Artur Wierzbicki 2022-09-23 19:13:14 +02:00 committed by GitHub
parent 2fadeeff4c
commit af9e58eeeb
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1 changed files with 20 additions and 12 deletions
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32
public/app/features/search/service/frontend.ts
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@ -4,7 +4,7 @@ import { TermCount } from 'app/core/components/TagFilter/TagFilter';
import { DashboardQueryResult, GrafanaSearcher, QueryResponse, SearchQuery } from '.';
export class FrontendSearcher implements GrafanaSearcher {
readonly cache = new Map<string, FullResultCache>();
readonly cache = new Map<string, Promise<FullResultCache>>();
constructor(private parent: GrafanaSearcher) {}
@ -29,20 +29,28 @@ export class FrontendSearcher implements GrafanaSearcher {
}
async getCache(kind?: string[]): Promise<FullResultCache> {
const key = kind ? kind.join(',') : '*';
let res = this.cache.get(key);
if (res) {
return Promise.resolve(res);
const key = kind ? kind.sort().join(',') : '*';
const cacheHit = this.cache.get(key);
if (cacheHit) {
try {
return await cacheHit;
} catch (e) {
// delete the cache key so that the next request will retry
this.cache.delete(key);
return new FullResultCache(new DataFrameView({ name: 'error', fields: [], length: 0 }));
}
}
const v = await this.parent.search({
kind, // match the request
limit: 5000, // max for now
});
const resultPromise = this.parent
.search({
kind, // match the request
limit: 5000, // max for now
})
.then((res) => new FullResultCache(res.view));
res = new FullResultCache(v.view);
this.cache.set(key, res);
return res;
this.cache.set(key, resultPromise);
return resultPromise;
}
async starred(query: SearchQuery): Promise<QueryResponse> {