When starting a MATLAB® worker, a licensing problem might result in the message
If the number of threads created by the server services on a
machine running a UNIX® operating system (Linux® or Macintosh)
exceeds the limitation set by the
maxproc value, the services fail and generate an out-of-memory error.
Many networks are configured not to allow
LocalSystem to have access to UNC or mapped network shares.
mdce_def file specifies and describes the ports required by the job manager and all workers.
If you use the job manager on a cluster of nodes running Windows® operating systems, you must make sure that a large number of ephemeral TCP ports are available on the job manager machine.
If a worker is not able to make a connection with its MATLAB job scheduler (MJS, or job manager), or if a client session cannot validate a profile that uses that scheduler, this might indicate communications problems between nodes.
If you want to use the discover cluster capabilities in Parallel Computing Toolbox™, your network must be configured with at least one of the following: