The assignTasks() GraphQL mutation is used to assign node tasks.

For more information on common node tasks, see the LogScale Logical Architecture page in the Training section.

Syntax

Below is the syntax for the assignTasks() mutation field:

graphql
assignTasks(
      nodeID: integer! tasks: [NodeTaskEnum!]!
   ): [NodeTaskEnum!]!

Below is an example of how this mutation field might be used:

Raw
graphql
mutation {
  assignTasks(nodeID: 1, tasks: [query,storage])
}
Mac OS or Linux (curl)
shell
curl -v -X POST $YOUR_LOGSCALE_URL/graphql \
    -H "Authorization: Bearer $TOKEN" \
    -H "Content-Type: application/json" \
    -d @- << EOF
{"query" : "mutation {
  assignTasks(nodeID: 1, tasks: [query,storage])
}"
}
EOF
Mac OS or Linux (curl) One-line
shell
curl -v -X POST $YOUR_LOGSCALE_URL/graphql \
    -H "Authorization: Bearer $TOKEN" \
    -H "Content-Type: application/json" \
    -d @- << EOF
{"query" : "mutation {
  assignTasks(nodeID: 1, tasks: [query,storage])
}"
}
EOF
Windows Cmd and curl
shell
curl -v -X POST $YOUR_LOGSCALE_URL/graphql ^
    -H "Authorization: Bearer $TOKEN" ^
    -H "Content-Type: application/json" ^
    -d @'{"query" : "mutation { ^
  assignTasks(nodeID: 1, tasks: [query,storage]) ^
}" ^
} '
Windows Powershell and curl
powershell
curl.exe -X POST 
    -H "Authorization: Bearer $TOKEN"
    -H "Content-Type: application/json"
    -d '{"query" : "mutation {
  assignTasks(nodeID: 1, tasks: [query,storage])
}"
}'
    "$YOUR_LOGSCALE_URL/graphql"
Perl
perl
#!/usr/bin/perl

use HTTP::Request;
use LWP;

my $INGEST_TOKEN = "TOKEN";

my $uri = '$YOUR_LOGSCALE_URL/graphql';

my $json = '{"query" : "mutation {
  assignTasks(nodeID: 1, tasks: [query,storage])
}"
}';
my $req = HTTP::Request->new("POST", $uri );

$req->header("Authorization" => "Bearer $TOKEN");
$req->header("Content-Type" => "application/json");

$req->content( $json );

my $lwp = LWP::UserAgent->new;

my $result = $lwp->request( $req );

print $result->{"_content"},"\n";
Python
python
#! /usr/local/bin/python3

import requests

url = '$YOUR_LOGSCALE_URL/graphql'
mydata = r'''{"query" : "mutation {
  assignTasks(nodeID: 1, tasks: [query,storage])
}"
}'''

resp = requests.post(url,
                     data = mydata,
                     headers = {
   "Authorization" : "Bearer $TOKEN",
   "Content-Type" : "application/json"
}
)

print(resp.text)
Node.js
javascript
const https = require('https');

const data = JSON.stringify(
    {"query" : "mutation {
  assignTasks(nodeID: 1, tasks: [query,storage])
}"
}
);


const options = {
  hostname: '$YOUR_LOGSCALE_URL/graphql',
  path: '/graphql',
  port: 443,
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Content-Length': data.length,
    Authorization: 'BEARER ' + process.env.TOKEN,
    'User-Agent': 'Node',
  },
};

const req = https.request(options, (res) => {
  let data = '';
  console.log(`statusCode: ${res.statusCode}`);

  res.on('data', (d) => {
    data += d;
  });
  res.on('end', () => {
    console.log(JSON.parse(data).data);
  });
});

req.on('error', (error) => {
  console.error(error);
});

req.write(data);
req.end();
Example Responses
Success (HTTP Response Code 200 OK)
json
{
  "data": {
    "assignTasks": [
      "storage",
      "digest",
      "query"
    ]
  }
}

Given and Returned Datatypes

For nodeID, give the unique identifier of the node to which to assign tasks. For the NodeTaskEnum, there are only a few choices from an enumerated list:

Table: AssignSystemRoleToGroupInput

ParameterTypeRequiredDefaultDescription
Some arguments may be required, as indicated in the Required column. For some fields, this column indicates that a result will always be returned for this column.
Table last updated: Sep 16, 2024
digestbooleanyes Indicates a digest task.
querybooleanyes Represents a query task.
storagebooleanyes Indicates a storage task.