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cluster-ipc-logger
Advanced tools
This logger is designed to collect logs from cluster workers, child processes even independent node.js processes through IPC (Inter-Process Communication).
This logger is designed to collect logs from cluster workers, child processes even independent node.js processes through IPC (Inter-Process Communication).
npm i cluster-ipc-logger
import { loggerServer, loggerClient } from 'cluster-ipc-logger';
import * as cluster from 'cluster';
if (cluster.isMaster) /* master */ {
// logger master
const logger = new loggerServer({
debug: true,
directory: './logs',
saveInterval: 60000 // 1 minute
});
// logger for master
const log = new loggerClient({
system: 'master',
cluster: 0
})
// log listeners
logger
.on('fatal', (msg) => {
// on fatal logs
})
.on('error', (msg) => {
// on error logs
})
.on('all', (msg) => {
// on all logs
});
// detect ^c and save logs before exiting
process.on('SIGINT', () => {
logger.save().then(() => {
process.exit();
}).catch((err) => {
throw err;
});
});
// fork workers
for (let i = 6; i--;) {
cluster.fork({ workerId: i });
log.info(`forking worker ${i}`);
}
log.debug('debug logs only show up when debug option is set to true');
log.info('every severity of logs will be save to local storage');
log.warn('when an error or fatal log occured,');
log.error('the log content is also saved to another file with prefix [error],');
log.error('so it is easier to examine the major flaws');
} else /* worker */ {
// logger for worker
const log = new loggerClient({
system: 'worker',
cluster: process.env.workerId
});
log.debug(`worker ${process.env.workerId} standing by`);
}
//log json
log.info({
eBooks: [
{
language: 'Pascal',
edition: 'third'
},
{
language: 'Python',
edition: 'four'
},
{
language: 'SQL',
edition: 'second'
}
]
});
loggerClient
will catch unhandledRejection
& uncaughtException
and log it as fatal. After sending it to loggerMaster
it will automatically kill the client process with process.exit()
(as it should be).
FAQs
This logger is designed to collect logs from cluster workers, child processes even independent node.js processes through IPC (Inter-Process Communication).
We found that cluster-ipc-logger demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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