Error: ENOENT with Bunyan rotating-file logging (NodeJS)

I am using the Bunyan module for NodeJS logging. When I try using the rotating-file type, it makes my app crash every time and outputs this error:

Error: ENOENT, rename 'logs/info.log.3'

However, it never happens at the same time so I can't find any logic... This is how I instanciate my logger:

var log = Bunyan.createLogger(config.log.config);
log.info('App started, ' + process.env.NODE_ENV);

And here is my config.json:

  {
    "name"    : "app",
    "streams" : [
        {
            "type"  : "rotating-file",
            "period": "5000ms",        //Low period is for testing purposes
            "count" : 12,
            "level" : "info",
            "path"  : "logs/info.log"
        },
        {
            "type"  : "rotating-file",
            "period": "5000ms",
            "count" : 12,
            "level" : "error",
            "path"  : "logs/error.log"
        },
        {
            "type"  : "rotating-file",
            "period": "5000ms",
            "count" : 12,
            "level" : "trace",
            "path"  : "logs/trace.log"
        }
    ]
  }

Can anyone advise how to fix my issue? Thanks in advance.

I have experienced the same issue without using clustering. I believe the problem is being caused by old files sitting in the log directory. While the main logger can open and append to existing files, the file rotation logic uses rename, which files when it steps on an existing file. (e.g. an existing info.log.3 file).

I'm still digging into the source to figure out what needs to be changed to recover from the rolling error.

One additional thought as I review the source. If you have multiple Bunyan log instances that use the same log file (in my case, a common error.log), the rename calls could be happening nearly concurrently from the OS level (asynchronous and separate calls from a Node.js perspective, but concurrently from the OS perspective).