Conntrack

Plugin: proc.plugin Module: /proc/net/stat/nf_conntrack

Overview

This integration monitors the connection tracking mechanism of Netfilter in the Linux Kernel.

This collector is supported on all platforms.

This collector supports collecting metrics from multiple instances of this integration, including remote instances.

Default Behavior

Auto-Detection

This integration doesn't support auto-detection.

Limits

The default configuration for this integration does not impose any limits on data collection.

Performance Impact

The default configuration for this integration is not expected to impose a significant performance impact on the system.

Metrics

Metrics grouped by scope.

The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.

Per Conntrack instance

This scope has no labels.

Metrics:

Metric	Dimensions	Unit
netfilter.conntrack_sockets	connections	active connections
netfilter.conntrack_new	new, ignore, invalid	connections/s
netfilter.conntrack_changes	inserted, deleted, delete_list	changes/s
netfilter.conntrack_expect	created, deleted, new	expectations/s
netfilter.conntrack_search	searched, restarted, found	searches/s
netfilter.conntrack_errors	icmp_error, error_failed, drop, early_drop	events/s

Alerts

The following alerts are available:

Alert name	On metric	Description
netfilter_conntrack_full	netfilter.conntrack_sockets	netfilter connection tracker table size utilization

Setup

Prerequisites

No action required.

Configuration

File

There is no configuration file.

Options

There are no configuration options.

Examples

There are no configuration examples.