Hardware and system requirements¶
Server requirements¶
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Disk
Approximately 1 GB of storage per monitored database node with data retention set to one week. By default, retention is 30 days.
Tip
Disable table statistics to decrease the VictoriaMetrics database size.
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Memory
A minimum of 2 GB per monitored database node. The increase in memory usage is not proportional to the number of nodes. For example, data from 20 nodes should be easily handled with 16 GB.
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Architecture
Your CPU must support the
SSE4.2instruction set, a requirement of ClickHouse, a third-party column-oriented database used by Query Analytics. If your CPU is lacking this instruction set you won’t be able to use Query Analytics.
Client requirements¶
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Disk
A minimum of 100 MB of storage is required for installing the PMM Client package. With a good connection to PMM Server, additional storage is not required. However, the client needs to store any collected data that it cannot dispatch immediately, so additional storage may be required if the connection is unstable or the throughput is low. VMagent uses 1 GB of disk space for cache during a network outage. QAN, on the other hand, uses RAM to store cache.
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Operating system
PMM Client runs on any modern 64-bit Linux distribution. It is tested on supported versions of Debian, Ubuntu, CentOS, and Red Hat Enterprise Linux. (See Percona software support life cycle).
Get expert help¶
If you need assistance, you can find comprehensive and free database knowledge on our community forum or blog posts. For professional support and services, contact our Percona Database Experts.