| title | category |
|---|---|
Software and Hardware Requirements |
operations |
As an open source distributed NewSQL database with high performance, TiDB can be deployed in the Intel architecture server and major virtualization environments and runs well. TiDB supports most of the major hardware networks and Linux operating systems.
| Linux OS Platform | Version |
|---|---|
| Red Hat Enterprise Linux | 7.3 or later |
| CentOS | 7.3 or later |
| Oracle Enterprise Linux | 7.3 or later |
| Ubuntu LTS | 16.04 or later |
Note:
- For Oracle Enterprise Linux, TiDB supports the Red Hat Compatible Kernel (RHCK) and does not support the Unbreakable Enterprise Kernel provided by Oracle Enterprise Linux.
- The support for the Linux operating systems above includes the deployment and operation in physical servers as well as in major virtualized environments like VMware, KVM and XEM.
You can deploy and run TiDB on the 64-bit generic hardware server platform in the Intel x86-64 architecture. The requirements and recommendations about server hardware configuration for development, test and production environments are as follows:
| Component | CPU | Memory | Local Storage | Network | Instance Number (Minimum Requirement) |
|---|---|---|---|---|---|
| TiDB | 8 core+ | 16 GB+ | SAS, 200 GB+ | Gigabit network card | 1 (can be deployed on the same machine with PD) |
| PD | 8 core+ | 16 GB+ | SAS, 200 GB+ | Gigabit network card | 1 (can be deployed on the same machine with TiDB) |
| TiKV | 8 core+ | 32 GB+ | SAS, 200 GB+ | Gigabit network card | 3 |
| Total Server Number | 4 |
Note:
- In the test environment, the TiDB and PD can be deployed on the same server.
- For performance-related test, do not use low-performance storage and network hardware configuration, in order to guarantee the correctness of the test result.
| Component | CPU | Memory | Hard Disk Type | Network | Instance Number (Minimum Requirement) |
|---|---|---|---|---|---|
| TiDB | 16 core+ | 48 GB+ | SAS | 10 Gigabit network card (2 preferred) | 2 |
| PD | 8 core+ | 16 GB+ | SSD | 10 Gigabit network card (2 preferred) | 3 |
| TiKV | 16 core+ | 48 GB+ | SSD | 10 Gigabit network card (2 preferred) | 3 |
| Monitor | 8 core+ | 16 GB+ | SAS | Gigabit network card | 1 |
| Total Server Number | 9 |
Note:
- In the production environment, you can deploy and run TiDB and PD on the same server. If you have a higher requirement for performance and reliability, try to deploy them separately.
- It is strongly recommended to use higher configuration in the production environment.
- It is recommended to keep the size of TiKV hard disk within 800G in case it takes too long to restore data when the hard disk is damaged.
As an open source distributed NewSQL database, TiDB requires the following network port configuration to run. Based on the TiDB deployment in actual environments, the administrator can enable relevant ports in the network side and host side.
| Component | Default Port | Description |
|---|---|---|
| TiDB | 4000 | the communication port for the application and DBA tools |
| TiDB | 10080 | the communication port to report TiDB status |
| TiKV | 20160 | the TiKV communication port |
| PD | 2379 | the communication port between TiDB and PD |
| PD | 2380 | the inter-node communication port within the PD cluster |
| Prometheus | 9090 | the communication port for the Prometheus service |
| Pushgateway | 9091 | the aggregation and report port for TiDB, TiKV, and PD monitor |
| Node_exporter | 9100 | the communication port to report the system information of every TiDB cluster node |
| Grafana | 3000 | the port for the external Web monitoring service and client (Browser) access |
Based on the Prometheus and Grafana platform, TiDB provides a visual data monitoring solution to monitor the TiDB cluster status. To access the Grafana monitor interface, it is recommended to use a higher version of Microsoft IE, Google Chrome or Mozilla Firefox.