Low resource mode requirements
Review the requirements needed to run Cloudera Data Warehouse (CDW) service on Red Hat OpenShift 4.6 and Embedded Container Service (ECS) clusters using the low resource mode. This mode reduces the minimum amount of hardware needed.
- CDP Cloudera Manager must be installed and running.
- CDP Private Cloud must be installed and running. See Private Cloud Installation Overview and Requirements for more details.
- An environment must have been registered with Management Console on the private cloud. See CDP Private Cloud Environments for more details.
- In addition to the general requirements listed in the Private Cloud Installation Requirements documentation, CDW also has the following minimum memory, storage, and hardware requirements for each OpenShift worker node using the standard resource mode:
| Component | Low resource mode deployment |
|---|---|
| Nodes | 4 |
| CPU | 4 |
| Memory | 48 GB |
| Storage | 3 x 100 GB (SATA) or 2 x 200 GB (SATA) |
| Network Bandwidth | 1 GB/s guaranteed bandwidth to every CDP Private Cloud Base node |
Virtual Warehouse low resource mode resource requirements
The following requirements are in addition to the low resource mode requirements listed in the previous section.
| Component | vCPU | Memory | Local Storage | Number of pods in XSMALL Virtual Warehouse |
|---|---|---|---|---|
| Coordinator (2) | 2 x 0.4 | 2 x 24 GB | 2 x 100 GB | 2 |
| Executor (2) | 2 x 3 | 2 x 24 GB | 2 x 100 GB | 2 |
| Statestore | 0.1 | 512 MB | -- | 1 |
| Catalogd | 0.4 | 16 GB | -- | 1 |
| Auto-scaler | 0.1 | 1 GB | -- | 1 |
| Hue (backend) | 0.5 | 8 GB | -- | 1 |
| Hue (frontend) | -- | -- | -- | 1 |
| Total for XSMALL Virtual Warehouse | 8 (7.9) | 121.5 GB | 400 GB - 3 volumes | -- |
Impala Admission Control Configuration
- Maximum concurrent queries per executor: 4
- Maximum query memory limit: 8 GB
| Component | vCPU | Memory | Local Storage | Number of pods in XSMALL Virtual Warehouse |
|---|---|---|---|---|
| Coordinator (2) | 2 x 1 | 2 x 4 GB | 2 x 100 GB | 2 |
| Executor (2) | 2 x 4 | 2 x 48 GB (16 GB heap; 32 GB off-heap) | 2 x 100 GB | 2 |
| HiveServer2 | 1 | 16 GB | -- | 1 |
| DAS | 0.5 | 4 GB | -- | 1 |
| Hue (backend) | 0.5 | 8 GB | -- | 1 |
| Hue (frontend) | -- | -- | -- | 1 |
| Standalone compute operator | 0.1 | 100 MB (.1 GB) | -- | -- |
| Standalone query executor (separate) | Same as executor | Same as executor | Same as executor | -- |
| Data Visualization (optional) | 0.5 | 8 GB | -- | 1 |
| Total for XSMALL Virtual Warehouse | 21 (20.6) | 237 GB (236.1) | 400 GB - 4 volumes | -- |
Database Catalog low resource mode requirements
The metastore and the DAS event processor each use 2 CPUs and 8 GB of memory.
Security Requirements
The CDW service requires the "cluster-admin" role on the OpenShift and ECS cluster in order to install correctly. The "cluster-admin" role enables namespace creation and the use of the OpenShift Local Storage Operator for local storage.
