Lets get some additional information so others can help you faster. Can you describe the current system you have the VM set up on (RAM, Processors, Etc) as well as what has been allocated to the VM?
Here is a community article that you may also want to review to ensure the VM is set up correctly.
How to setup Cloudera Quickstart Virtual Machine
For eample in this situation:
Cloudera Manager is installed in the VM but is turned off by default. If you would like to use Cloudera Manager, open theLaunch Cloudera Manager icon on the desktop. It is strongly recommended that before you do so, you configure the VM with a minimum of 8 GiB of RAM and 2 virtual CPU cores (by default it will use 4 GiB of RAM and 1 virtual CPU core). Cloudera Manager and all of the CDH services might not launch properly with less RAM. After launching Cloudera Manager, all of the services in CDH are started, although it might take several minutes for Cloudera Manager to start all of the services. To conserve resources and improve performance, it is recommended that you stop services you do not plan to use. Changes made to configuration files before launching Cloudera Manager are not preserved.
You can start or reconfigure any installed services using the web interface that is automatically displayed when the VM starts.
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