API Stability Short-Term

The setMinHostAlivePercentageToEnableClusterRebalancing() GraphQL mutation is used to set the percentage of all hosts relevant to a particular cluster rebalance operation that need to be alive before we allow the system to execute automatically the operation to the supplied value. Cluster rebalance operations currently include reassigning digest work, and moving existing segments to balance disk usage.

Syntax

Below is the syntax for setMinHostAlivePercentageToEnableClusterRebalancing():

graphql
setMinHostAlivePercentageToEnableClusterRebalancing(
      minHostAlivePercentageToEnableClusterRebalancing: integer!
   ): integer

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

Raw
graphql
mutation {
  setMinHostAlivePercentageToEnableClusterRebalancing( 
       minHostAlivePercentageToEnableClusterRebalancing: 50
  )
}
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 {
  setMinHostAlivePercentageToEnableClusterRebalancing( 
       minHostAlivePercentageToEnableClusterRebalancing: 50
  )
}"
}
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 {
  setMinHostAlivePercentageToEnableClusterRebalancing( 
       minHostAlivePercentageToEnableClusterRebalancing: 50
  )
}"
}
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 { ^
  setMinHostAlivePercentageToEnableClusterRebalancing(  ^
       minHostAlivePercentageToEnableClusterRebalancing: 50 ^
  ) ^
}" ^
} '
Windows Powershell and curl
powershell
curl.exe -X POST 
    -H "Authorization: Bearer $TOKEN"
    -H "Content-Type: application/json"
    -d '{"query" : "mutation {
  setMinHostAlivePercentageToEnableClusterRebalancing( 
       minHostAlivePercentageToEnableClusterRebalancing: 50
  )
}"
}'
    "$YOUR_LOGSCALE_URL/graphql"
Perl
perl
#!/usr/bin/perl

use HTTP::Request;
use LWP;

my $TOKEN = "TOKEN";

my $uri = '$YOUR_LOGSCALE_URL/graphql';

my $query = "mutation {
  setMinHostAlivePercentageToEnableClusterRebalancing( 
       minHostAlivePercentageToEnableClusterRebalancing: 50
  )
}";
$query =~ s/\n/ /g;
my $json = sprintf('{"query" : "%s"}',$query);
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 {
  setMinHostAlivePercentageToEnableClusterRebalancing( 
       minHostAlivePercentageToEnableClusterRebalancing: 50
  )
}"
}'''

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 {
  setMinHostAlivePercentageToEnableClusterRebalancing( 
       minHostAlivePercentageToEnableClusterRebalancing: 50
  )
}"
}
);


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": {
    "setMinHostAlivePercentageToEnableClusterRebalancing": 50
  }
}

This mutation field has no special datatypes. It uses integer for both the input and the return datatype.

For the given data, enter the percentage of all hosts relevant to a particular cluster rebalance operation that need to be alive before we allow the system to automatically execute the operation. Cluster rebalance operations currently include reassigning digest work, and moving existing segments to balance disk usage. Must be between 0 and 100, both inclusive.