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NodeJS cluster fix: Only save disk cache to disk when master.

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fixes #108
This commit is contained in:
softsimon 2020-09-22 04:07:47 +07:00
parent d6744c07f9
commit c2288c31e6
2 changed files with 11 additions and 9 deletions
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19
backend/src/api/disk-cache.ts
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@ -1,4 +1,5 @@
import * as fs from 'fs'; import * as fs from 'fs';
import * as cluster from 'cluster';
import memPool from './mempool'; import memPool from './mempool';
import blocks from './blocks'; import blocks from './blocks';
@ -6,15 +7,17 @@ class DiskCache {
static FILE_NAME = './cache.json'; static FILE_NAME = './cache.json';
constructor() { constructor() {
process.on('SIGINT', () => { if (cluster.isMaster) {
this.saveCacheToDisk(); process.on('SIGINT', () => {
process.exit(2); this.saveCacheToDisk();
}); process.exit(2);
});
process.on('SIGTERM', () => { process.on('SIGTERM', () => {
this.saveCacheToDisk(); this.saveCacheToDisk();
process.exit(2); process.exit(2);
}); });
}
} }
saveCacheToDisk() { saveCacheToDisk() {

1
backend/src/index.ts
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@ -7,7 +7,6 @@ import * as http from 'http';
import * as https from 'https'; import * as https from 'https';
import * as WebSocket from 'ws'; import * as WebSocket from 'ws';
import * as cluster from 'cluster'; import * as cluster from 'cluster';
import * as os from 'os';
import { checkDbConnection } from './database'; import { checkDbConnection } from './database';
import routes from './routes'; import routes from './routes';