Preparing the Software and Hardware Installation Environment

Memory

It is recommended that the memory be 32 GB or above for function debugging. Set Disk Cache Policy to Disabled to avoid data loss in an unexpected power-off.

In performance tests and commercial deployment, it is recommended that the memory be 128 GB or above for single-instance deployment. Set Disk Cache Policy to Disabled to avoid data loss in an unexpected power-off.

Complex queries require much more memory, and therefore, the memory may be insufficient in high-concurrency scenarios. In this case, it is recommended that a large-memory server or load management be used to restrict concurrences on the system. Set Disk Cache Policy to Disabled to avoid data loss in an unexpected power-off.

CPU

It is recommended at least one 8-core 2.0 GHz CPU be used for function debugging. Set Disk Cache Policy to Disabled to avoid data loss in an unexpected power-off.

In performance tests and commercial deployment, it is recommended that one 16-core 2.0 GHz CPU be used. Set Disk Cache Policy to Disabled to avoid data loss in an unexpected power-off.

You can set CPUs to hyper-threading or non-hyper-threading mode. Set Disk Cache Policy to Disabled to avoid data loss in an unexpected power-off.

Disk

Hard disks used for installing openGauss must meet the following requirements:

• At least 1 GB is used to install the openGauss applications.
• About 300 MB is used for each host to store metadata.
• More than 70% of available disk space is reserved to store data.

You are advised to configure the system disk to RAID 1 and data disk to RAID 5 and plan four groups of RAID 5 data disks for installing openGauss. RAID configuration is not described in this document. You can configure RAID by following instructions in the hardware vendors' manuals or using common methods found on the Internet. Set Disk Cache Policy to Disabled to avoid data loss in an unexpected power-off.

openGauss supports using an SSD with the SAS API and NVMe protocol deployed in RAID mode as the primary storage device of the database. Set Disk Cache Policy to Disabled to avoid data loss in an unexpected power-off.

Network Requirements

Minimum 300 Mbit/s Ethernet is required. Set Disk Cache Policy to Disabled to avoid data loss in an unexpected power-off.

You are advised to bond two NICs for redundancy. For details about how to configure it, see the instructions in the manual provided by the hardware manufacturer. Set Disk Cache Policy to Disabled to avoid data loss in an unexpected power-off.

Linux OS

• ARM:
  • openEuler 20.3 LTS (recommended)
  • Kirin V10
  • Asianux 7.5
• X86:
  • openEuler 20.3LTS
  • CentOS 7.6
  • Asianux 7.6
    Note:

    The current installation package can be used only on the English operating system. Set Disk Cache Policy to Disabled to avoid data loss in an unexpected power-off.

Linux file system

It is recommended that the number of remaining inodes be greater than 1.5 billion.

Tool

bzip2

libaio-devel

0.3.109-13

readline-devel

7.0-13

expect

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