@xtcry/bull-arena
Version:
An interactive UI dashboard for Bee/Bull Queue
99 lines (98 loc) • 2.81 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.BULLMQ_STATES = exports.BULL_STATES = exports.BEE_STATES = exports.getStats = exports.isPaused = void 0;
const _ = require("lodash");
/**
* Formats the number into "human readable" number/
*
* @param {Number} num The number to format.
* @returns {string} The number as a string or error text if we couldn't
* format it.
*/
function formatBytes(num) {
if (!Number.isFinite(num)) {
return 'Could not retrieve value';
}
const UNITS = ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB'];
const neg = num < 0;
if (neg)
num = -num;
if (num < 1) {
return (neg ? '-' : '') + num + ' B';
}
const exponent = Math.min(Math.floor(Math.log(num) / Math.log(1024)), UNITS.length - 1);
const numStr = Number((num / Math.pow(1024, exponent)).toPrecision(3));
const unit = UNITS[exponent];
return (neg ? '-' : '') + numStr + ' ' + unit;
}
function parseRedisServerInfo(redisServerInfo) {
if (typeof redisServerInfo !== 'string') {
return {};
}
const serverInfo = {};
redisServerInfo
.split('\r\n')
.map((line) => line.trim())
.filter((line) => !!line && !line.startsWith('#')) // remove comments and empty lines
.forEach((line) => {
const idx = line.indexOf(':');
if (idx > 0) {
serverInfo[line.substring(0, idx)] = line.substring(idx + 1);
}
});
return serverInfo;
}
const isPaused = async (queue) => {
return queue.isPaused();
};
exports.isPaused = isPaused;
const _usefulMetrics = [
'redis_version',
'total_system_memory',
'used_memory',
'mem_fragmentation_ratio',
'connected_clients',
'blocked_clients',
];
const getStats = async (queue) => {
const { client } = await queue;
const info = await client.info();
const stats = _.pickBy(parseRedisServerInfo(info), (value, key) => _.includes(_usefulMetrics, key));
stats.used_memory = formatBytes(parseInt(stats.used_memory, 10));
stats.total_system_memory = formatBytes(parseInt(stats.total_system_memory, 10));
return stats;
};
exports.getStats = getStats;
/**
* Valid states for a job in bee queue
*/
exports.BEE_STATES = [
'waiting',
'active',
'succeeded',
'failed',
'delayed',
];
/**
* Valid states for a job in bull queue
*/
exports.BULL_STATES = [
'waiting',
'active',
'completed',
'failed',
'delayed',
'paused',
];
/**
* Valid states for a job in bullmq queue
*/
exports.BULLMQ_STATES = [
'waiting',
'active',
'completed',
'failed',
'delayed',
'paused',
'waiting-children',
];