Files
MaxScale/Documentation/REST-API/Resources-MaxScale.md
Markus Makela 59e615eb3c Create initial REST API documentation
The Resources document lists all currently known resources and will be converted
to a list of separate resource documents once the individual resource documents
are done. The Headers and Response Codes document contains a list of request and
response headers and the HTTP return codes. This is a work in progress and will
be expanded upon.

Added initial versions of the filter, monitor, session and user resource
documents. These provide information about various parts of MaxScale and
allow interaction.

All PATCH operations expect a JSON Patch type document in the request
body. Examples modified accordingly.

Add MaxScale resource document which describes the resources that give the
global configuration options and show statistics.

The resources that link to other resources provide values as a list of
relative links. This reduces the amount of sent data when the client
doesn't require all parts of the resource.

Since the updating is not yet implement, it should be stated that the update API
will most likely be modified at some point.

The module resource is similar to `maxadmin show modules` and the log
resource contains status information about logs. The log resource also has
an "action" resource at `/maxscale/logs/flush` which flushes logs to disk
and rotates them.

Added start and stop entry points for services and monitors. Also added
missing service parameters to the list of parameters that can be updated.

The documentation lists listeners as a sub-resource of the
service. This allows the listeners of a particular service to be queried.
2016-11-07 14:20:44 +02:00

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3.6 KiB
Markdown

# MaxScale Resource
The MaxScale resource represents a MaxScale instance and it is the core on top
of which the modules build upon.
## Resource Operations
## Get global information
Retrieve global information about a MaxScale instance. This includes various
file locations, configuration options and version information.
```
GET /maxscale
```
#### Response
```
Status: 200 OK
{
"config": "/etc/maxscale.cnf",
"cachedir": "/var/cache/maxscale/",
"datadir": "/var/lib/maxscale/"
"libdir": "/usr/lib64/maxscale/",
"piddir": "/var/run/maxscale/",
"execdir": "/usr/bin/",
"languagedir": "/var/lib/maxscale/",
"user": "maxscale",
"threads": 4,
"version": "2.1.0",
"commit": "12e7f17eb361e353f7ac413b8b4274badb41b559"
"started": "Wed, 31 Aug 2016 23:29:26 +0300"
}
```
#### Supported Request Parameter
- `fields`
## Get thread information
Get detailed information and statistics about the threads.
```
GET /maxscale/threads
```
#### Response
```
Status: 200 OK
{
"load_average": {
"historic": 1.05,
"current": 1.00,
"1min": 0.00,
"5min": 0.00,
"15min": 0.00
},
"threads": [
{
"id": 0,
"state": "processing",
"file_descriptors": 1,
"event": [
"in",
"out"
],
"run_time": 300
},
{
"id": 1,
"state": "polling",
"file_descriptors": 0,
"event": [],
"run_time": 0
}
]
}
```
#### Supported Request Parameter
- `fields`
## Get logging information
Get information about the current state of logging, enabled log files and the
location where the log files are stored.
```
GET /maxscale/logs
```
#### Response
```
Status: 200 OK
{
"logdir": "/var/log/maxscale/",
"maxlog": true,
"syslog": false,
"log_levels": {
"error": true,
"warning": true,
"notice": true,
"info": false,
"debug": false
},
"log_augmentation": {
"function": true
},
"log_throttling": {
"limit": 8,
"window": 2000,
"suppression": 10000
},
"last_flushed": "Wed, 31 Aug 2016 23:29:26 +0300"
}
```
#### Supported Request Parameter
- `fields`
## Flush and rotate log files
Flushes any pending messages to disk and reopens the log files. The body of the
message is ignored.
```
POST /maxscale/logs/flush
```
#### Response
```
Status: 204 No Content
```
## Get task schedule
Retrieve all pending tasks that are queued for execution.
```
GET /maxscale/tasks
```
#### Response
```
Status: 200 OK
[
{
"name": "Load Average",
"type": "repeated",
"frequency": 10,
"next_due": "Fri Sep 9 14:12:37 2016"
}
}
```
#### Supported Request Parameter
- `fields`
## Get loaded modules
Retrieve information about all loaded modules. This includes version, API and
maturity information.
```
GET /maxscale/modules
```
#### Response
```
Status: 200 OK
[
{
"name": "MySQLBackend",
"type": "Protocol",
"version": "V2.0.0",
"api_version": "1.1.0",
"maturity": "GA"
},
{
"name": "qlafilter",
"type": "Filter",
"version": "V1.1.1",
"api_version": "1.1.0",
"maturity": "GA"
},
{
"name": "readwritesplit",
"type": "Router",
"version": "V1.1.0",
"api_version": "1.0.0",
"maturity": "GA"
}
}
```
#### Supported Request Parameter
- `fields`
- `range`
TODO: Add epoll statistics and rest of the supported methods.