Applications

Applications documentation

Applications

Plugin: apps.plugin Module: apps

Overview

Monitor Applications for optimal software performance and resource usage.

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.

Setup

Prerequisites

No action required.

Configuration

Options

There are no configuration options.

via File

There is no configuration file.

Examples

There are no configuration examples.

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 applications group

These metrics refer to the application group.

Labels:

Label	Description
app_group	The name of the group defined in the configuration.

Metrics:

Metric	Description	Dimensions	Unit
app.cpu_utilization	Apps CPU utilization (100% = 1 core)	user, system	percentage
app.cpu_guest_utilization	Apps CPU guest utilization (100% = 1 core)	guest	percentage
app.cpu_context_switches	Apps CPU context switches	voluntary, involuntary	switches/s
app.estimated_mem_usage	Apps estimated memory usage (RSS with shared scaling). Requires kernel 4.14+. Enabled by default, disable with –pss 0.	mem	MiB
app.mem_usage	Apps memory RSS usage	rss	MiB
app.mem_private_usage	Apps memory usage without shared	mem	MiB
app.vmem_usage	Apps virtual memory size	vmem	MiB
app.mem_page_faults	Apps memory page faults	minor, major	pgfaults/s
app.ebpf_cachestat_hit_ratio	Hit ratio	ratio	%
app.ebpf_cachestat_dirty_pages	Number of dirty pages	pages	page/s
app.ebpf_cachestat_access	Number of accessed files	hits	hits/s
app.ebpf_cachestat_misses	Files out of page cache	misses	misses/s
app.ebpf_dc_hit	Percentage of directory lookups resolved by the cache.	ratio	%
app.ebpf_dc_reference	Count file access.	files	files
app.ebpf_dc_not_cache	Files not present inside directory cache.	files	files
app.ebpf_dc_not_found	Files not found.	files	files
app.swap_usage	Apps swap usage	swap	MiB
app.disk_physical_io	Apps disk physical IO	reads, writes	KiB/s
app.disk_logical_io	Apps disk logical IO	reads, writes	KiB/s
app.processes	Apps processes	processes	processes
app.threads	Apps threads	threads	threads
app.fds_open_limit	Apps open file descriptors limit	limit	percentage
app.fds_open	Apps open file descriptors	files, sockets, pipes, inotifies, event, timer, signal, eventpolls, other	fds
app.uptime	Apps uptime	uptime	seconds
app.uptime_summary	Apps uptime summary	min, avg, max	seconds

Per apps plugin IPC

apps.plugin netipc lookup-client and lookup-server health and latency.

This scope has no labels.

Metrics:

Metric	Description	Dimensions	Unit
netdata.collector.ipc.cgroups_lookup.client.requests	CGROUPS_LOOKUP client request outcomes	requests_sent, requests_responded, requests_timeout, requests_error	requests/s
netdata.collector.ipc.cgroups_lookup.client.cache	CGROUPS_LOOKUP client cache outcomes	cache_hits, cache_misses_retry, cache_misses_permanent, cache_evictions	events/s
netdata.collector.ipc.cgroups_lookup.client.peer	CGROUPS_LOOKUP client peer connection events	peer_connect_attempts, peer_disconnects	events/s
netdata.collector.ipc.cgroups_lookup.client.request_duration_ms	CGROUPS_LOOKUP client request duration buckets	le_1ms, le_5ms, le_10ms, le_50ms, le_100ms, le_500ms, le_1000ms, gt_1000ms	requests/s
netdata.collector.ipc.cgroups_lookup.client.queue_depth	CGROUPS_LOOKUP client queued cgroup paths	queue_depth	paths
netdata.collector.ipc.apps_lookup.server.requests	APPS_LOOKUP server request outcomes	requests_responded, requests_error	requests/s
netdata.collector.ipc.apps_lookup.server.request_duration_ms	APPS_LOOKUP server request duration buckets	le_1ms, le_5ms, le_10ms, le_50ms, le_100ms, le_500ms, le_1000ms, gt_1000ms	requests/s

Alerts

There are no alerts configured by default for this integration.

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