Manage Nodes in a Cluster

Add a Node

See Adding a Node for information on adding nodes.

Show Information about a Node in a Cluster

You can fetch/re-post the object representing the node in the cluster using GET/PUT requests. $NODE_ID is the integer ID of the new node.

Description	Shows a node in the cluster
Method	`GET /api/v1/clusterconfig/members/id`
Response Data	`node`
Authentication Required	yes
Path Arguments	Description	Data type	Required?
`id`	ID of the bucket storage configuration	`string`	required
Return Codes
200	Request complete
400	Bad authentication
500	Request failed

To redirect the output to a JSON file, run the script like this:

shell

$ script>$YOUR_FILE_NAME.json

You can then use this as the payload in further requests when updating the information.

http

GET /api/v1/clusterconfig/members/$NODE_ID

Show:

shell

curl -v -X GET $YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID \
    -H "Authorization: Bearer $TOKEN" \
    -H "Content-Type: application/json"

shell

curl -v -X GET $YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID \
    -H "Authorization: Bearer $TOKEN" \
    -H "Content-Type: application/json"

shell

curl -v -X GET $YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID ^
    -H "Authorization: Bearer $TOKEN" ^
    -H "Content-Type: application/json"

powershell

curl.exe -X GET 
    -H "Authorization: Bearer $TOKEN"
    -H "Content-Type: application/json"
    "$YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID"

perl

#!/usr/bin/perl

use HTTP::Request;
use LWP;

my $INGEST_TOKEN = "TOKEN";

my $uri = '$YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID';

my $req = HTTP::Request->new("GET", $uri );

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


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

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

print $result->{"_content"},"\n";

python

#! /usr/local/bin/python3

import requests

url = '$YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID'

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

print(resp.text)

javascript

const https = require('https');

let request = https.get('$YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID', (res) => {
  if (res.statusCode !== 200) {
    console.error(`Error from server. Code: ${res.statusCode}`);
    res.resume();
    return;
  }

  let data = '';

  res.on('data', (chunk) => {
    data += chunk;
  });

  res.on('close', () => {
    console.log('Response:');
    console.log(JSON.parse(data));
  });
});

    return(undef,undef);
}

Example Responses

Show:

json

[
  {
    "vhost": 1,
    "uuid": "7q2LwHv6q3C5jmdGj3EYL1n56olAYcQy",
    "internalHostUri": "$YOUR_LOGSCALE_URL",
    "displayName": "host-1"
  }
]

The returned JSON has the following structure:

Table:

Field	Type	Description
displayName	string	User configurable name for this host
internalHostUri	uri	Internal URI for this node
uuid	string	Universally unique ID for this node; not user configurable
vhost	integer	Node ID; not user configurable

Modify information about a node in a cluster

Description	Update the configuration of a node in the cluster.
Method	`PUT /api/v1/clusterconfig/members/id`
Request Data	`node`
Response Data	`node`
Authentication Required	yes
Path Arguments	Description	Data type	Required?
`id`	ID of the bucket storage configuration	`string`	required
Return Codes
200	Request complete
400	Bad authentication
500	Request failed

http

PUT /api/v1/clusterconfig/members/$NODE_ID

Show:

shell

curl -v -X PUT $YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID \
    -H "Authorization: Bearer $TOKEN" \
    -H "Content-Type: application/json"

shell

curl -v -X PUT $YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID \
    -H "Authorization: Bearer $TOKEN" \
    -H "Content-Type: application/json"

shell

curl -v -X PUT $YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID ^
    -H "Authorization: Bearer $TOKEN" ^
    -H "Content-Type: application/json"

powershell

curl.exe -X PUT 
    -H "Authorization: Bearer $TOKEN"
    -H "Content-Type: application/json"
    "$YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID"

perl

#!/usr/bin/perl

use HTTP::Request;
use LWP;

my $INGEST_TOKEN = "TOKEN";

my $uri = '$YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID';

my $req = HTTP::Request->new("PUT", $uri );

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


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

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

print $result->{"_content"},"\n";

python

#! /usr/local/bin/python3

import requests

url = '$YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID'

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

print(resp.text)

javascript

const https = require('https');

let request = https.put('$YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID', (res) => {
  if (res.statusCode !== 200) {
    console.error(`Error from server. Code: ${res.statusCode}`);
    res.resume();
    return;
  }

  let data = '';

  res.on('data', (chunk) => {
    data += chunk;
  });

  res.on('close', () => {
    console.log('Response:');
    console.log(JSON.parse(data));
  });
});

    return(undef,undef);
}

Example Responses

Show:

json

[
  {
    "vhost": 1,
    "uuid": "7q2LwHv6q3C5jmdGj3EYL1n56olAYcQy",
    "internalHostUri": "$YOUR_LOGSCALE_URL",
    "displayName": "host-1"
  }
]

The returned JSON has the following structure:

Table:

Field	Type	Description
displayName	string	User configurable name for this host
internalHostUri	uri	Internal URI for this node
uuid	string	Universally unique ID for this node; not user configurable
vhost	integer	Node ID; not user configurable

You can edit the fields internalHostUri and displayName in this structure and POST the resulting changes back to the server, preserving the vhost and uuid fields.

Delete a Node from a Cluster

See Removing a Node documentation on removing a node from a cluster.

Description	Delete the configuration of a node in the cluster.
Method	`DELETE /api/v1/clusterconfig/members/id`
Authentication Required	yes
Path Arguments	Description	Data type	Required?
`id`	ID of the bucket storage configuration	`string`	required
Query Arguments	Description	Data type	Required?
`accept-data-loss`	Force deletion of the node configuration	`boolean`	optional
	Supported Values
	`false`	Deletes only if no data or partitions are assigned
	`true`	Force deletion even if it has data and assigned partitions
Return Codes
200	Request complete
400	Bad authentication
500	Request failed

If the host does not have any segment files, and no assigned partitions, there is no data loss when deleting a node.

http

DELETE /api/v1/clusterconfig/members/$NODE_ID

Show:

shell

curl -v -X DELETE $YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID \
    -H "Authorization: Bearer $TOKEN" \
    -H "Content-Type: application/json"

shell

curl -v -X DELETE $YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID \
    -H "Authorization: Bearer $TOKEN" \
    -H "Content-Type: application/json"

shell

curl -v -X DELETE $YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID ^
    -H "Authorization: Bearer $TOKEN" ^
    -H "Content-Type: application/json"

powershell

curl.exe -X DELETE 
    -H "Authorization: Bearer $TOKEN"
    -H "Content-Type: application/json"
    "$YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID"

perl

#!/usr/bin/perl

use HTTP::Request;
use LWP;

my $INGEST_TOKEN = "TOKEN";

my $uri = '$YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID';

my $req = HTTP::Request->new("DELETE", $uri );

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


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

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

print $result->{"_content"},"\n";

python

#! /usr/local/bin/python3

import requests

url = '$YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID'

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

print(resp.text)

javascript

const https = require('https');

let request = https.delete('$YOUR_LOGSCALE_URL/api/v1/clusterconfig/members/$NODE_ID', (res) => {
  if (res.statusCode !== 200) {
    console.error(`Error from server. Code: ${res.statusCode}`);
    res.resume();
    return;
  }

  let data = '';

  res.on('data', (chunk) => {
    data += chunk;
  });

  res.on('close', () => {
    console.log('Response:');
    console.log(JSON.parse(data));
  });
});

    return(undef,undef);
}

It is possible to drop a host, even if it has data and assigned partitions, by adding the query parameter accept-data-loss with the value true.

Warning

This procedure silently drops your data.

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