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# Keycloak Performance Testsuite - Provisioning Parameters
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## Overview of Provisioned Services
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### Testing
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| Deployment | Keycloak Server | Database | Load Balancer | Infinispan Server |
|-----------------|------------------------------------------|--------------------|--------------------|--------------------|
| *Singlenode* | 1 instance | 1 instance | - | - |
| *Cluster* | N instances | 1 instance | 1 instance | - |
| *Cross-DC* | K instances in DC1 + L instances in DC2 | 1 instance per DC | 1 instance per DC | 1 instance per DC |
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### Monitoring
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| Deployment | CAdvisor | Influx DB | Grafana |
|-----------------|-------------|-------------|-------------|
| *Monitoring* | 1 instance | 1 instance | 1 instance |
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## Service Parameters
### Keycloak Server
| Category | Setting | Property | Default Value |
|-------------|-------------------------------|------------------------------------|--------------------------------------------------------------------|
| Scaling< sup > [1]</ sup > | Scale for cluster | `keycloak.scale` | Maximum size< sup > [2]</ sup > of cluster. |
| | Scale for DC1 | `keycloak.dc1.scale` | Maximum size of DC1. |
| | Scale for DC2 | `keycloak.dc2.scale` | Maximum size of DC2. |
| Docker | Allocated CPUs | `keycloak.docker.cpusets` | `2-3` for singlenode, `2 3` for cluster deployment |
| | Allocated CPUs for DC1 | `keycloak.dc1.docker.cpusets` | `2` |
| | Allocated CPUs for DC2 | `keycloak.dc2.docker.cpusets` | `3` |
| | Available memory | `keycloak.docker.memlimit` | `2500m` |
| JVM | Memory settings | `keycloak.jvm.memory` | `-Xms64m -Xmx2g -XX:MetaspaceSize=96M -XX:MaxMetaspaceSize=256m` |
| Undertow | HTTP Listener max connections | `keycloak.http.max-connections` | `50000` |
| | AJP Listener max connections | `keycloak.ajp.max-connections` | `50000` |
| IO | Worker IO thread pool | `keycloak.worker.io-threads` | `2` |
| | Worker Task thread pool | `keycloak.worker.task-max-threads` | `16` |
| Datasources | Connection pool min size | `keycloak.ds.min-pool-size` | `10` |
| | Connection pool max size | `keycloak.ds.max-pool-size` | `100` |
| | Connection pool prefill | `keycloak.ds.pool-prefill` | `true` |
| | Prepared statement cache size | `keycloak.ds.ps-cache-size` | `100` |
**[ 1 ]** The scaling parameters are optional. They can be set within interval from 1 to the maximum cluster size].
If not set they are automatically set to the maximum size of the cluster (DC1/DC2 respectively).
**[ 2 ]** Maximum cluster size is determined by provisioner-specific parameter such as `keycloak.docker.cpusets` for the default *docker-compose* provisioner.
The maximum cluster size corresponds to the number of cpusets.
### Database
| Category | Setting | Property | Default Value |
|-------------|-------------------------------|------------------------------------|--------------------------------------------------------------------|
| Docker | Allocated CPUs | `db.docker.cpusets` | `1` |
| | Allocated CPUs for DC1 | `db.dc1.docker.cpusets` | `1` |
| | Allocated CPUs for DC2 | `db.dc2.docker.cpusets` | `1` |
| | Available memory | `db.docker.memlimit` | `2g` |
### Load Balancer
| Category | Setting | Property | Default Value |
|-------------|-------------------------------|------------------------------|--------------------------------------------------------------------|
| Docker | Allocated CPUs | `lb.docker.cpusets` | `1` |
| | Allocated CPUs for DC1 | `lb.dc1.docker.cpusets` | `1` |
| | Allocated CPUs for DC2 | `lb.dc2.docker.cpusets` | `1` |
| | Available memory | `lb.docker.memlimit` | `1g` |
| JVM | Memory settings | `lb.jvm.memory` | `-Xms64m -Xmx512m -XX:MetaspaceSize=96M -XX:MaxMetaspaceSize=256m` |
| Undertow | HTTP Listener max connections | `lb.http.max-connections` | `50000` |
| IO | Worker IO thread pool | `lb.worker.io-threads` | `2` |
| | Worker Task thread pool | `lb.worker.task-max-threads` | `16` |
### Infinispan Server
| Category | Setting | Property | Default Value |
|-------------|-------------------------------|---------------------------------|-------------------------------------------------------------------------------------------|
| Docker | Allocated CPUs for DC1 | `infinispan.dc1.docker.cpusets` | `1` |
| | Allocated CPUs for DC2 | `infinispan.dc2.docker.cpusets` | `1` |
| | Available memory | `infinispan.docker.memlimit` | `1500m` |
| JVM | Memory settings | `infinispan.jvm.memory` | `-Xms64m -Xmx1g -XX:MetaspaceSize=96M -XX:MaxMetaspaceSize=256m -XX:+DisableExplicitGC` |
### Monitoring
| Category | Setting | Property | Default Value |
|-------------|-------------------------------|-----------------------------|-----------------|
| Docker | Allocated CPUs | `monitoring.docker.cpusets` | `0` |
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| JMX | Management user | `management.user` | Not set. |
| | Management user's password | `management.user.password` | Not set. |
By setting the `managemen.user` and `management.user.password` parameters it is possible
to add a management user to all WildFly-backed services (*Keycloak Server*, *Infinispan Server* and the *Load Balancer* ).
Unless both parameters are explicitly provided during the provisioning phase the user will not be added
and it won't be possible to log into the management console or access JMX.
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## Note on Docker settings
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By default, there are 4 CPU cores allocated: core 0 for monitoring, core 1 for database (MariaDB), and cores 2 and 3 for Keycloak server.
Default memory limits for database and Keycloak server are 2g. The `cpuset` and `memlimit` parameters set here are set to `cpuset` and
`mem_limit` parameters of docker-compose configuration. See docker-compose documentation for meaning of the values. How to set the parameters
correctly depends on number of factors - number of cpu cores, NUMA, available memory etc., hence it is out of scope of this document.
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### Example CPU Settings
| HW | Development Machine | "Fat Box" |
|-------------|----------------------|--------------|
| Cores | 4 | 48 |
| NUMA Nodes | 0-3 | 0-23, 24-47 |
#### Cluster
| Setting | Development Machine | "Fat Box" |
|------------------------------------|----------------------|-----------------------------|
| `monitoring.docker.cpusets` | 0 | 0 |
| `db.docker.cpusets` | 1 | 1 |
| `lb.docker.cpusets` | 1 | 2 |
| `keycloak.docker.cpusets` | 2-3 | 3-6 7-10 11-16 … 43-46 |
#### Cross-DC
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| Setting | Development Machine | "Fat Box" |
|------------------------------------|----------------------|--------------------------------|
| `monitoring.docker.cpusets` | 0 | 0 |
| `db.dc1.docker.cpusets` | 1 | 1 |
| `lb.dc1.docker.cpusets` | 1 | 2 |
| `infinispan.dc1.docker.cpusets` | 1 | 3 |
| `keycloak.dc1.docker.cpusets` | 2 | 4-7 8-11 12-15 16-19 20-23 |
| `db.dc2.docker.cpusets` | 1 | 24 |
| `lb.dc2.docker.cpusets` | 1 | 25 |
| `infinispan.dc2.docker.cpusets` | 1 | 26 |
| `keycloak.dc2.docker.cpusets` | 3 | 27-30 31-34 35-38 39-42 43-46 |
