https://github.com/printercu/cluster_master

Simple and powerful cluster manager
https://github.com/printercu/cluster_master

Last synced: 27 days ago
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Simple and powerful cluster manager

• Host: GitHub
• URL: https://github.com/printercu/cluster_master
• Owner: printercu
• Created: 2013-07-16T17:14:37.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2013-09-03T15:54:12.000Z (about 11 years ago)
• Last Synced: 2024-10-03T04:32:26.961Z (about 1 month ago)
• Language: CoffeeScript
• Homepage:
• Size: 105 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# ClusterMaster

Basic cluster management in one line:

```coffee

return if require('cluster_master').runMaster()

# worker's code here

```

By default it'll spawn `os.cpus().length` workers and respawn every dead worker.

Out of box you'll get safe zero downtime reload:

- send `SIGHUP` to process

- cluster will try to spawn new worker

- if new worker is ok then cluster will gracefully close one running worker & 'll reload all old workers

- if new forker failed it won't destroy old workers

For more stuff see source.

## Use forever

Oops! Seems like forever still does not have proper support for specifying kill signal.

However you can specify pid file for ClusterMaster and send hups yourself:

```

return if require('cluster_master').runMaster(pidfile: 'pids/cluster.pid')

```

May be later:

Once cluster is started with [forever](https://github.com/nodejitsu/forever)

```sh

forever start -c coffee server.coffee

```

it can be reloaded with

```sh

forever stop --killSignal SIGHUP -c coffee server.coffee

```

## License

MIT