This topic shows you test data on on-demand service instances managed in a deployment.
VMware tested the on-demand broker (ODB) with 500 on-demand service instances using the example Kafka on-demand tile. We recorded how long it took to create, upgrade all, and delete all, with 50, 101, and 500 dedicated service instances. The setup and results are shown here.
Set up
| Environment | |
|---|---|
| IaaS | Google Cloud Platform |
| Tanzu Operations Manager | v1.9.7 |
| Elastic Runtime | v1.9.13 |
| Example Kafka On-Demand Tile | v0.15.1 |
| BOSH Director Configuration | |
|---|---|
| Workers | 3 |
| Dedicated status worker | enabled |
| On-demand plan configuration | |
|---|---|
| Zookeeper VM type | small (1 CPU, 2GB RAM, 8GB Disk) |
| Kafka VM type | small (1 CPU, 2GB RAM, 8GB Disk) |
Test
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Upload the example Kafka on-demand tile.
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Configure the on-demand plan.
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Apply changes to install the on-demand service, ensuring that Register On-Demand Broker is checked.
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Create N dedicated service instances using the cf CLI.
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Make a change to the plan configuration.
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Apply pending changes, ensuring that Upgrade All On-Demand Service Instances is selected.
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Delete the tile and apply changes, ensuring that Delete All On-Demand Service Instances is selected.
Results
Durations presented in HH:MM:SS format.
| Create | 50 | 101 | 500 |
|---|---|---|---|
| average create | 00:01:02 | 00:01:03 | 00:01:02 |
| total | 00:51:28 | 01:45:40 | 08:33:37 |
| Upgrade All | 50 | 101 | 500 |
|---|---|---|---|
| average upgarde | 00:01:10 | 00:01:05 | 00:01:00 |
| total | 00:58:37 | 01:49:42 | 08:21:08 |
| Delete All | 50 | 101 | 500 |
|---|---|---|---|
| average delete | 00:05:09 | 00:05:04 | 0:05:00 |
| total | 04:17:38 | 08:31:10 | 41:38:26 |
These durations might vary for a number of reasons, for example:
- Number of BOSH director workers
- IaaS performance
- Network latency
- Service instance BOSH release(s)
- Service instance deployment configuration
- VM type of service instance
- Activity of Elastic Runtime
- Activity of BOSH Director
Notes
For create operations, the on-demand broker creates a BOSH deployment for each service instance. By default, the BOSH Director in Tanzu Operations Manager v1.9 has three workers with a dedicated status worker, so only two workers are available to process deployment tasks. Therefore, only two service instances can be created at the same time.
For upgrade all and delete all operations, Tanzu Operations Manager runs a BOSH errand. This errand task occupies a BOSH Director worker, leaving one worker available to upgrade, or delete deployments.
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