Monitoring Linux Containers (LXC)
The Linux Containers (LXC) sensor is automatically installed and configured after you install the Instana agent. You can view metrics that are related to Linux Containers (LXC) sensor in the Instana UI.
Support information
To make sure that the Linux Containers (LXC) sensor is compatible with your current setup, check the following support information sections:
Supported versions and support policy
The sensor supports the following versions of Linux Containers:
- 1.0.x
- 2.0.x
- 3.0.x
- 3.1.x
The following table shows the latest supported version and support policy:
| Technology | Support policy | Latest version | Latest supported version |
|---|---|---|---|
| Linux Containers (LXC) | On demand | 6.0.1 | 3.1.x |
For more information about the support policy, see Support strategy for sensors.
Additional support information
The Instana agent can monitor only the privileged containers.
Viewing metrics
To view the metrics, complete the following steps:
- From the navigation menu in the Instana UI, select Infrastructure.
- Click a specific monitored host.
You can see a host dashboard with all the collected metrics and monitored processes.
Configuration data
- Name
- IP
- PID
- State
- Privileged
- Network Interface
- Filesystem per Device
- Mount, options, and type information
Performance metrics
| Metric | Description | Granularity |
|---|---|---|
| CPU usage (kernel, user) | CPU usage of system and user processes | 1 second |
| Active anon memory | Anonymous memory that is used recently and usually not swapped out | 1 second |
| Active file memory | Pagecache memory that is used recently and usually not reclaimed until needed | 1 second |
| Inactive anon memory | Anonymous memory that is used recently and can be swapped out | 1 second |
| Inactive file memory | Pagecache memory that can be reclaimed without huge performance impact | 1 second |
| Memory usage | Memory usage in bytes and percentage | 1 second |
| RSS memory | The resident set size (RSS) is the amount of space of physical memory (RAM) that is held by a process | 1 second |
| Cache memory | Used cache memory | 1 second |
| Swap memory | Swap memory usage in bytes and percentage | 1 second |
| Network RX/TX Bytes | Received/transmitted bytes over the network through the network interface | 1 second |
| Network RX/TX Packets | Received/transmitted packets over the network through the network interface | 1 second |
| Filesystem usage (total, free, used) | The total and free space in bytes and used percentage of the files in the system | 1 second |