Issues Identified in MMCloud 1.1 Release

Known Issues and Limitations

  • Application memory footprint limitation for Spot Instance use case

    If the cloud provider signals that the Spot Instance will be reclaimed, the checkpoint image must be created and written to persistent storage before the Spot Instance terminates when the warning period expires. For AWS and AliCloud, this warning period is two minutes and five minutes, respectively. This limits the size of the application's in-memory state to 120 GB for AWS and 256 GB for AliCloud.

  • Single node applications only — clustered applications are not supported.
  • CPU-only VMs — VMs with GPUs or FPGAs are not supported.