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const PgBoss = require('pg-boss')
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const { DynamicThreadPool } = require('poolifier')
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const os = require('node:os')
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/* global WIKI */
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module.exports = {
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pool: null,
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scheduler: null,
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async init () {
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WIKI.logger.info('Initializing Scheduler...')
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this.scheduler = new PgBoss({
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db: {
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close: () => Promise.resolve('ok'),
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executeSql: async (text, values) => {
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try {
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const resource = await WIKI.models.knex.client.pool.acquire().promise
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const res = await resource.query(text, values)
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WIKI.models.knex.client.pool.release(resource)
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return res
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} catch (err) {
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WIKI.logger.error('Failed to acquire DB connection during scheduler query execution.')
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WIKI.logger.error(err)
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}
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}
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},
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// ...WIKI.models.knex.client.connectionSettings,
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application_name: 'Wiki.js Scheduler',
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schema: WIKI.config.db.schemas.scheduler,
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uuid: 'v4'
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})
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const maxWorkers = WIKI.config.workers === 'auto' ? os.cpus().length : WIKI.config.workers
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WIKI.logger.info(`Initializing Worker Pool (Max ${maxWorkers})...`)
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this.pool = new DynamicThreadPool(1, maxWorkers, './server/worker.js', {
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errorHandler: (err) => WIKI.logger.warn(err),
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exitHandler: () => WIKI.logger.debug('A worker has gone offline.'),
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onlineHandler: () => WIKI.logger.debug('New worker is online.')
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})
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return this
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},
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async start () {
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WIKI.logger.info('Starting Scheduler...')
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await this.scheduler.start()
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this.scheduler.work('*', async job => {
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return this.pool.execute({
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id: job.id,
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name: job.name,
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data: job.data
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})
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})
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WIKI.logger.info('Scheduler: [ STARTED ]')
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},
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async stop () {
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WIKI.logger.info('Stopping Scheduler...')
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await this.scheduler.stop()
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await this.pool.destroy()
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WIKI.logger.info('Scheduler: [ STOPPED ]')
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}
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}
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