To enable and configure static service pools, you enter the percentage of resources
to allocate to each service and then restart the cluster.
Minimum Required Role:
Cluster
Administrator (also provided by Full
Administrator) This feature is not available when using Cloudera
Manager to manage Data Hub clusters.
- Select
.
- Click the Configuration tab.
The
Step 1 of 4: Basic Allocation Setup page displays. In each
field in the basic allocation table, enter the percentage of resources
to give to each service. The total must add up to
100%.
- Click Continue to
proceed.
Step 2: Review Changes - The
allocation of resources for each resource type and role displays with
the new values as well as the values previously in effect. The values
for each role are set by role group; if there is more than one role
group for a given role type (for example, for RegionServers or
DataNodes) then resources will be allocated separately for the hosts
in each role group.
- Take note of changed settings. If you have previously
customized these settings, check these over carefully:
- Click the to the right of each
percentage to display the allocations for a single service. Click
to the right of the Total (100%) to view
all the allocations in a single page.
- Click the Back button to go to the previous page and
change your allocations.
- When you are satisfied with the allocations, click
Continue.
The Step 3 of
4: Restart Services page displays.
- To apply the new allocation percentages, click Restart Now to restart the
cluster. To skip this step, click Restart Later. If HDFS High Availability is
enabled, you will have the option to choose a rolling restart.
- Step 4 of 4: Progress displays the status of the restart
commands. Click Finished after the restart commands
complete.
After you enable static service pools, there are three
additional tasks:
- Delete everything under the local directory path on NodeManager
hosts. The local directory path is configurable, and can be verified
in Cloudera Manager with .
- Enable cgroups for resource management. You can enable cgroups
in Cloudera Manager with .
- If you are using the optional Impala scratch directory, delete
all files in the Impala scratch directory. The directory path is
configurable, and can be verified in Cloudera Manager with .