Verify that your environment meets the system requirements for MongoDB.
Application
MongoDB
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3.2.x
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3.4.x
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3.6.x
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4.0.x
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4.2.x
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4.4.x
Percona Server for MongoDB
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4.2.x
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4.4.x
Operating System
Linux
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Operating system |
Processor architecture |
|---|---|
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Amazon Linux 2 AMI (HVM) - Kernel 5.10, SSD Volume Type |
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Debian 10.x |
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Debian 9.x |
|
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Debian 8.x |
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Red Hat Enterprise Linux/CentOS 8.x with glibc 2.17.x |
|
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Red Hat Enterprise Linux/CentOS 7.x with glibc 2.17.x or a more recent version |
|
|
Red Hat Enterprise Linux/CentOS 6.x with glibc 2.12.x |
x64 |
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SuSE Linux 12 (Initial Release/SP1/SP2/SP3/SP4/SP5) with glibc 2.19.x |
|
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Ubuntu 20.04 LTS |
|
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Ubuntu 18.04 LTS |
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Ubuntu 16.04 LTS |
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Windows
|
Operating system |
Processor architecture |
|---|---|
|
Microsoft Windows Server 2019 Core Editions |
All Windows-compatible processors are supported |
|
Microsoft Windows Server 2012 R2 Editions |
All Windows-compatible processors are supported |
|
Microsoft Windows Server 2016 Editions |
All Windows-compatible processors are supported |
Other Requirements
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A secondary node is required to perform backups in a replica set configuration. In a sharded cluster configuration, each sharded server has to be a replica set with at least one secondary node.
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Verify that all mongod and mongos instances are running with config files. The config files must be in YAML format on all the operating system platforms.
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For MongoDB databases that have authentication enabled, use a database user that has any of the following roles on the admin database:
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The Root role. This is a superuser role.
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A subset of roles (backup, restore, clusterMonitor, hostManager). These roles should be used if the you do not want to assign the superuser role to the database user.
In a sharded cluster deployments, verify that the same database user is created on all the sharded servers and on the config server.
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Commvault software is not required on the arbitor node of the MongoDB cluster.
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On Linux platforms, by default, the default subclient uses the IntelliSnap Native engine (Logical Volume Manager (LVM) snapshots) for the snapshot operations.
For Linux LVM snaps, there must be adequate free space in the LVM volume group for snapshot creation. The default COW cache size is set to 4096 MB or 5% of the volume size, whichever is greater. To increase the COW cache size, configure the nSnapCowSizeMB additional setting. For instructions about adding the additional setting, see Adding a Setting for a CommCell Entity.