blob: 58d9e462178b7e67bb58cb56af8e196c2db0c430 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
plugin_name: go.d.plugin
modules:
- meta:
id: collector-go.d.plugin-dmcache
plugin_name: go.d.plugin
module_name: dmcache
monitored_instance:
name: DMCache devices
link: ""
icon_filename: filesystem.svg
categories:
- data-collection.storage-mount-points-and-filesystems
keywords:
- dmcache
related_resources:
integrations:
list: []
info_provided_to_referring_integrations:
description: ""
most_popular: false
overview:
data_collection:
metrics_description: >
This collector monitors DMCache, providing insights into capacity usage, efficiency, and activity.
It relies on the [`dmsetup`](https://man7.org/linux/man-pages/man8/dmsetup.8.html) CLI tool but avoids directly executing the binary.
Instead, it utilizes `ndsudo`, a Netdata helper specifically designed to run privileged commands securely within the Netdata environment.
This approach eliminates the need to use `sudo`, improving security and potentially simplifying permission management.
method_description: ""
supported_platforms:
include: []
exclude: []
multi_instance: false
additional_permissions:
description: ""
default_behavior:
auto_detection:
description: ""
limits:
description: ""
performance_impact:
description: ""
setup:
prerequisites:
list: []
configuration:
file:
name: go.d/dmcache.conf
options:
description: |
The following options can be defined globally: update_every.
folding:
title: Config options
enabled: true
list:
- name: update_every
description: Data collection frequency.
default_value: 10
required: false
- name: timeout
description: dmsetup binary execution timeout.
default_value: 2
required: false
examples:
folding:
title: Config
enabled: true
list:
- name: Custom update_every
description: Allows you to override the default data collection interval.
config: |
jobs:
- name: dmcache
update_every: 5 # Collect DMCache statistics every 5 seconds
troubleshooting:
problems:
list: []
alerts: []
metrics:
folding:
title: Metrics
enabled: false
description: ""
availability: []
scopes:
- name: dmcache device
description: These metrics refer to the DMCache device.
labels:
- name: device
description: Device name
metrics:
- name: dmcache.device_cache_space_usage
description: DMCache space usage
unit: bytes
chart_type: stacked
dimensions:
- name: free
- name: used
- name: dmcache.device_metadata_space_usage
description: DMCache metadata space usage
unit: bytes
chart_type: stacked
dimensions:
- name: free
- name: used
- name: dmcache.device_cache_read_efficiency
description: DMCache read efficiency
unit: requests/s
chart_type: stacked
dimensions:
- name: hits
- name: misses
- name: dmcache.device_cache_write_efficiency
description: DMCache write efficiency
unit: requests/s
chart_type: stacked
dimensions:
- name: hits
- name: misses
- name: dmcache.device_cache_activity
description: DMCache activity
unit: bytes/s
chart_type: area
dimensions:
- name: promotions
- name: demotions
- name: dmcache.device_cache_dirty_size
description: DMCache dirty data size
unit: bytes
chart_type: area
dimensions:
- name: dirty
|
