When the logging library has a failure the callback is never called.

[Binarytales]

When the logging library has a failure the callback is never called. The same is true from the promiseified version. Below is basic sample code with garbage credentials, but I have seen the same issue with seemingly valid credentials and unknown failures.

Environment details

• OS: OS X 10.11.6
• Node.js version: 6.9.1
• npm version: 3.10.8
• google-cloud-node version: @google-cloud/logging@0.6.1

Steps to reproduce

var logging = require('@google-cloud/logging')({
    projectId: 'projectx',
    keyFilename: false
});

var syslog = logging.log('syslog');

var metadata = {
  resource: {
    type: 'global',
  }
};

var entry = syslog.entry(metadata, {
  logMsg: 'something happened'
});

syslog.write(entry, function(err, resp) {
  console.log(err, resp);
});

I've tried stepping through the code to debug the the root cause of the issue but get stuck when grpc starts calling into native code blocks (call.startBatch)

[stephenplusplus]

Please try upgrading to the latest version of google-cloud or @google-cloud/logging.

[stephenplusplus]

This is likely a duplicate of #1955. Please follow along there. Thank you and sorry for the trouble.