chat-server/qq-imsvr/node_modules/cluster/docs/logger.md

Logger

File-based logging of both the master and worker processes.

Usage

The logger([path[, level]]) plugin accepts an optional path, and optional level to control the verbosity of the master process logs. By default the log level is info.

Outputting to ./logs:

 cluster(server)
   .use(cluster.logger())
   .listen(3000);

Outputting to ./tmp/logs:

 cluster(server)
   .use(cluster.logger('tmp/logs'))
   .listen(3000);

Outputting to /var/log/node with a log level of debug:

  cluster(server)
    .use(cluster.logger('/var/log/node', 'debug'))
    .listen(3000);

Generated files:

  master.log
  workers.access.log
  workers.error.log