Fix SNMP unit tests on OSX, improve tag config doc

closes #592
This commit is contained in:
Cameron Sparr 2016-01-27 11:09:14 -07:00
parent be95dfdd0e
commit 6ebb6bc7ee
5 changed files with 78 additions and 67 deletions

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@ -2,27 +2,46 @@
## Generating a Configuration File
A default Telegraf config file can be generated using the `-sample-config` flag,
like this: `telegraf -sample-config`
A default Telegraf config file can be generated using the -sample-config flag:
`telegraf -sample-config > telegraf.conf`
To generate a file with specific inputs and outputs, you can use the
`-input-filter` and `-output-filter` flags, like this:
-input-filter and -output-filter flags:
`telegraf -sample-config -input-filter cpu:mem:net:swap -output-filter influxdb:kafka`
## Telegraf Agent Configuration
## `[tags]` Configuration
Global tags can be specific in the `[tags]` section of the config file in
key="value" format. All metrics being gathered on this host will be tagged
with the tags specified here.
## `[agent]` Configuration
Telegraf has a few options you can configure under the `agent` section of the
config.
* **hostname**: The hostname is passed as a tag. By default this will be
the value returned by `hostname` on the machine running Telegraf.
You can override that value here.
* **interval**: How often to gather metrics. Uses a simple number +
unit parser, e.g. "10s" for 10 seconds or "5m" for 5 minutes.
* **debug**: Set to true to gather and send metrics to STDOUT as well as
InfluxDB.
* **interval**: Default data collection interval for all inputs
* **round_interval**: Rounds collection interval to 'interval'
ie, if interval="10s" then always collect on :00, :10, :20, etc.
* **metric_buffer_limit**: Telegraf will cache metric_buffer_limit metrics
for each output, and will flush this buffer on a successful write.
* **collection_jitter**: Collection jitter is used to jitter
the collection by a random amount.
Each plugin will sleep for a random time within jitter before collecting.
This can be used to avoid many plugins querying things like sysfs at the
same time, which can have a measurable effect on the system.
* **flush_interval**: Default data flushing interval for all outputs.
You should not set this below
interval. Maximum flush_interval will be flush_interval + flush_jitter
* **flush_jitter**: Jitter the flush interval by a random amount.
This is primarily to avoid
large write spikes for users running a large number of telegraf instances.
ie, a jitter of 5s and flush_interval 10s means flushes will happen every 10-15s.
* **debug**: Run telegraf in debug mode.
* **quiet**: Run telegraf in quiet mode.
* **hostname**: Override default hostname, if empty use os.Hostname().
## Input Configuration
## `[inputs.xxx]` Configuration
There are some configuration options that are configurable per input:
@ -35,7 +54,7 @@ There are some configuration options that are configurable per input:
global interval, but if one particular input should be run less or more often,
you can configure that here.
### Input Filters
#### Input Filters
There are also filters that can be configured per input:
@ -49,7 +68,7 @@ match against the tag name, and if it matches the measurement is emitted.
* **tagdrop**: The inverse of tagpass. If a tag matches, the measurement is not
emitted. This is tested on measurements that have passed the tagpass test.
### Input Configuration Examples
#### Input Configuration Examples
This is a full working config that will output CPU data to an InfluxDB instance
at 192.168.59.103:8086, tagging measurements with dc="denver-1". It will output
@ -77,7 +96,7 @@ fields which begin with `time_`.
drop = ["time_*"]
```
### Input Config: tagpass and tagdrop
#### Input Config: tagpass and tagdrop
```toml
[[inputs.cpu]]
@ -98,7 +117,7 @@ fields which begin with `time_`.
path = [ "/opt", "/home*" ]
```
### Input Config: pass and drop
#### Input Config: pass and drop
```toml
# Drop all metrics for guest & steal CPU usage
@ -112,7 +131,7 @@ fields which begin with `time_`.
pass = ["inodes*"]
```
### Input config: prefix, suffix, and override
#### Input config: prefix, suffix, and override
This plugin will emit measurements with the name `cpu_total`
@ -132,7 +151,7 @@ This will emit measurements with the name `foobar`
totalcpu = true
```
### Input config: tags
#### Input config: tags
This plugin will emit measurements with two additional tags: `tag1=foo` and
`tag2=bar`
@ -146,7 +165,7 @@ This plugin will emit measurements with two additional tags: `tag1=foo` and
tag2 = "bar"
```
### Multiple inputs of the same type
#### Multiple inputs of the same type
Additional inputs (or outputs) of the same type can be specified,
just define more instances in the config file. It is highly recommended that
@ -165,7 +184,7 @@ to avoid measurement collisions:
drop = ["cpu_time*"]
```
## Output Configuration
## `[outputs.xxx]` Configuration
Telegraf also supports specifying multiple output sinks to send data to,
configuring each output sink is different, but examples can be

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@ -1,27 +1,18 @@
# Telegraf configuration
# Telegraf is entirely plugin driven. All metrics are gathered from the
# declared inputs.
# declared inputs, and sent to the declared outputs.
# Even if a plugin has no configuration, it must be declared in here
# to be active. Declaring a plugin means just specifying the name
# as a section with no variables. To deactivate a plugin, comment
# out the name and any variables.
# Plugins must be declared in here to be active.
# To deactivate a plugin, comment out the name and any variables.
# Use 'telegraf -config telegraf.toml -test' to see what metrics a config
# Use 'telegraf -config telegraf.conf -test' to see what metrics a config
# file would generate.
# One rule that plugins conform to is wherever a connection string
# can be passed, the values '' and 'localhost' are treated specially.
# They indicate to the plugin to use their own builtin configuration to
# connect to the local system.
# NOTE: The configuration has a few required parameters. They are marked
# with 'required'. Be sure to edit those to make this configuration work.
# Tags can also be specified via a normal map, but only one form at a time:
# Global tags can be specified here in key="value" format.
[tags]
# dc = "us-east-1"
# dc = "us-east-1" # will tag all metrics with dc=us-east-1
# rack = "1a"
# Configuration for telegraf agent
[agent]
@ -97,9 +88,9 @@
# By default, telegraf will gather stats for all devices including
# disk partitions.
# Setting devices will restrict the stats to the specified devices.
# Devices=["sda","sdb"]
# devices = ["sda", "sdb"]
# Uncomment the following line if you do not need disk serial numbers.
# SkipSerialNumber = true
# skip_serial_number = true
# Read metrics about memory usage
[[inputs.mem]]

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@ -136,9 +136,10 @@ var header = `# Telegraf configuration
# Use 'telegraf -config telegraf.conf -test' to see what metrics a config
# file would generate.
# Tags can also be specified via a normal map, but only one form at a time:
# Global tags can be specified here in key="value" format.
[tags]
# dc = "us-east-1"
# dc = "us-east-1" # will tag all metrics with dc=us-east-1
# rack = "1a"
# Configuration for telegraf agent
[agent]

View File

@ -55,7 +55,7 @@ func TestSNMPErrorBulk(t *testing.T) {
Oid: ".1.3.6.1.2.1.2.2.1.16",
}
h := Host{
Address: "127.0.0.1",
Address: testutil.GetLocalHost(),
Collect: []string{"oid1"},
}
s := Snmp{
@ -75,7 +75,7 @@ func TestSNMPGet1(t *testing.T) {
Oid: ".1.3.6.1.2.1.2.2.1.16.1",
}
h := Host{
Address: "127.0.0.1:31161",
Address: testutil.GetLocalHost() + ":31161",
Community: "telegraf",
Version: 2,
Timeout: 2.0,
@ -98,7 +98,7 @@ func TestSNMPGet1(t *testing.T) {
},
map[string]string{
"unit": "octets",
"host": "127.0.0.1",
"host": testutil.GetLocalHost(),
},
)
}
@ -109,7 +109,7 @@ func TestSNMPGet2(t *testing.T) {
Oid: "ifNumber",
}
h := Host{
Address: "127.0.0.1:31161",
Address: testutil.GetLocalHost() + ":31161",
Community: "telegraf",
Version: 2,
Timeout: 2.0,
@ -133,7 +133,7 @@ func TestSNMPGet2(t *testing.T) {
},
map[string]string{
"instance": "0",
"host": "127.0.0.1",
"host": testutil.GetLocalHost(),
},
)
}
@ -146,7 +146,7 @@ func TestSNMPGet3(t *testing.T) {
Instance: "1",
}
h := Host{
Address: "127.0.0.1:31161",
Address: testutil.GetLocalHost() + ":31161",
Community: "telegraf",
Version: 2,
Timeout: 2.0,
@ -171,7 +171,7 @@ func TestSNMPGet3(t *testing.T) {
map[string]string{
"unit": "octets",
"instance": "1",
"host": "127.0.0.1",
"host": testutil.GetLocalHost(),
},
)
}
@ -184,7 +184,7 @@ func TestSNMPEasyGet4(t *testing.T) {
Instance: "1",
}
h := Host{
Address: "127.0.0.1:31161",
Address: testutil.GetLocalHost() + ":31161",
Community: "telegraf",
Version: 2,
Timeout: 2.0,
@ -210,7 +210,7 @@ func TestSNMPEasyGet4(t *testing.T) {
map[string]string{
"unit": "octets",
"instance": "1",
"host": "127.0.0.1",
"host": testutil.GetLocalHost(),
},
)
@ -221,7 +221,7 @@ func TestSNMPEasyGet4(t *testing.T) {
},
map[string]string{
"instance": "0",
"host": "127.0.0.1",
"host": testutil.GetLocalHost(),
},
)
}
@ -234,7 +234,7 @@ func TestSNMPEasyGet5(t *testing.T) {
Instance: "1",
}
h := Host{
Address: "127.0.0.1:31161",
Address: testutil.GetLocalHost() + ":31161",
Community: "telegraf",
Version: 2,
Timeout: 2.0,
@ -260,7 +260,7 @@ func TestSNMPEasyGet5(t *testing.T) {
map[string]string{
"unit": "octets",
"instance": "1",
"host": "127.0.0.1",
"host": testutil.GetLocalHost(),
},
)
@ -271,14 +271,14 @@ func TestSNMPEasyGet5(t *testing.T) {
},
map[string]string{
"instance": "0",
"host": "127.0.0.1",
"host": testutil.GetLocalHost(),
},
)
}
func TestSNMPEasyGet6(t *testing.T) {
h := Host{
Address: "127.0.0.1:31161",
Address: testutil.GetLocalHost() + ":31161",
Community: "telegraf",
Version: 2,
Timeout: 2.0,
@ -301,7 +301,7 @@ func TestSNMPEasyGet6(t *testing.T) {
},
map[string]string{
"instance": "0",
"host": "127.0.0.1",
"host": testutil.GetLocalHost(),
},
)
}
@ -314,7 +314,7 @@ func TestSNMPBulk1(t *testing.T) {
MaxRepetition: 2,
}
h := Host{
Address: "127.0.0.1:31161",
Address: testutil.GetLocalHost() + ":31161",
Community: "telegraf",
Version: 2,
Timeout: 2.0,
@ -339,7 +339,7 @@ func TestSNMPBulk1(t *testing.T) {
map[string]string{
"unit": "octets",
"instance": "1",
"host": "127.0.0.1",
"host": testutil.GetLocalHost(),
},
)
@ -351,7 +351,7 @@ func TestSNMPBulk1(t *testing.T) {
map[string]string{
"unit": "octets",
"instance": "2",
"host": "127.0.0.1",
"host": testutil.GetLocalHost(),
},
)
@ -363,7 +363,7 @@ func TestSNMPBulk1(t *testing.T) {
map[string]string{
"unit": "octets",
"instance": "3",
"host": "127.0.0.1",
"host": testutil.GetLocalHost(),
},
)
@ -375,7 +375,7 @@ func TestSNMPBulk1(t *testing.T) {
map[string]string{
"unit": "octets",
"instance": "36",
"host": "127.0.0.1",
"host": testutil.GetLocalHost(),
},
)
}
@ -392,7 +392,7 @@ func dTestSNMPBulk2(t *testing.T) {
MaxRepetition: 2,
}
h := Host{
Address: "127.0.0.1:31161",
Address: testutil.GetLocalHost() + ":31161",
Community: "telegraf",
Version: 2,
Timeout: 2.0,
@ -417,7 +417,7 @@ func dTestSNMPBulk2(t *testing.T) {
map[string]string{
"unit": "octets",
"instance": "1",
"host": "127.0.0.1",
"host": testutil.GetLocalHost(),
},
)
@ -429,7 +429,7 @@ func dTestSNMPBulk2(t *testing.T) {
map[string]string{
"unit": "octets",
"instance": "2",
"host": "127.0.0.1",
"host": testutil.GetLocalHost(),
},
)
@ -441,7 +441,7 @@ func dTestSNMPBulk2(t *testing.T) {
map[string]string{
"unit": "octets",
"instance": "3",
"host": "127.0.0.1",
"host": testutil.GetLocalHost(),
},
)
@ -453,7 +453,7 @@ func dTestSNMPBulk2(t *testing.T) {
map[string]string{
"unit": "octets",
"instance": "36",
"host": "127.0.0.1",
"host": testutil.GetLocalHost(),
},
)
}

View File

@ -80,8 +80,8 @@ func (_ *DiskIOStats) Description() string {
var diskIoSampleConfig = `
# By default, telegraf will gather stats for all devices including
# disk partitions.
# Setting devices will restrict the stats to the specified devcies.
# devices = ["sda","sdb"]
# Setting devices will restrict the stats to the specified devices.
# devices = ["sda", "sdb"]
# Uncomment the following line if you do not need disk serial numbers.
# skip_serial_number = true
`