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larvitamsync
Advanced tools
Sync data between minions
const Intercom = require('larvitamintercom'),
winston = require('winston'),
options = {'exchange': 'test_dataDump'}, // RabbitMQ exchange, must be unique on the queue
amsync = require('larvitamsync'),
log = winston.createLogger({'transports': [new winston.transports.Console()]});
options.intercom = new Intercom({'conStr': 'AMQP connection string', 'log': log});
// Set the log instance for the amsync server
// This is optional, but recommended
options.log = log;
// The stdout from this command will be piped to the data slave
// This will be be the input for the
// https://nodejs.org/api/child_process.html#child_process_child_process_spawn_command_args_options
options.dataDumpCmd = {
'command': 'cat',
'args': ['/home/myself/dbdump.sql'],
'options': {}
};
// or pipe directly from mysqldump:
options.dataDumpCmd = {
'command': 'mysqldump',
'args': ['-u', 'root', '-psecret', '--single-transaction', 'dbname', 'table1', 'table2'],
'options': {}
};
// You can set range of network ports to be used.
// By not declaring port range a random free port will be used.
options.minPort = 5000;
options.maxPort = 5100;
new amsync.SyncServer(options, function(err) {
if (err) throw err;
console.log('Server active');
});
On each data dump request there is a http request and this can be handled manually
const winston = require('winston'),
Intercom = require('larvitamintercom'),
options = {'exchange': 'test_dataDump'}, // RabbitMQ exchange, must be unique on the queue
amsync = require('larvitamsync'),
log = winston.createLogger({'transports': [new winston.transports.Console()]});
let syncServer;
options.intercom = new Intercom({'conStr': 'AMQP connection string', 'log': log});
options.log = log;
syncServer = new amsync.SyncServer(options, function(err) {
if (err) throw err;
console.log('Server active');
});
syncServer.handleHttpReq_original = syncServer.handleHttpReq;
syncServer.handleHttpReq = function(req, res) {
// Set custom content type
res.setHeader('Content-Type', 'text/plain');
// Run different commands depending on request url
if (req.url === '/') {
syncServer.options.dataDumpCmd = {'command': 'echo', 'args': ['blergh']};
} else {
syncServer.options.dataDumpCmd = {'command': 'echo', 'args': [req.url]};
}
// Run the original request handler
syncServer.handleHttpReq_original(req, res);
}
For this to work, larvitamintercom must be configured and up and running!
const Intercom = require('larvitamintercom'),
options = {},
amsync = require('larvitamsync');
options.intercom = new Intercom('AMQP connection string');
options.exchange = 'test_dataDump'; // RabbitMQ exchange, must be unique on the queue
options.requestOptions = {'path': '/foobar'}; // Optional extra options to
// https://www.npmjs.com/package/request that
// is used to request stuff from the server
new amsync.SyncClient(options, function(err, res) {
let syncData = Buffer.from('');
if (err) throw err;
// res is an instance of https://nodejs.org/api/http.html#http_class_http_incomingmessage
res.on('data', function(chunk) {
syncData = Buffer.concat([syncData, chunk], syncData.length + chunk.length);
});
res.on('end', function() {
console.log('Got sync data:');
console.log(syncData.toString());
});
res.on('error', function(err) {
throw err;
});
});
For this to work, both larvitamintercom and larvitdb must be configured and up and running!
const winston = require('winston'),
Intercom = require('larvitamintercom'),
options = {'exchange': 'test_dataDump'}, // RabbitMQ exchange, must be unique on the queue
amsync = require('larvitamsync'),
log = winston.createLogger({'transports': [new winston.transports.Console()]}),
db = require('larvitdb');
// See how to configure larvitdb here: https://github.com/larvit/larvitdb#larvitdb
db.setup(someConfig);
options.intercom = new Intercom('AMQP connection string');
options.log = log;
options.db = db;
amsync.mariadb(options, function(err) {
if (err) throw err;
console.log('Data synced!');
});
FAQs
Sync data between minions
The npm package larvitamsync receives a total of 6 weekly downloads. As such, larvitamsync popularity was classified as not popular.
We found that larvitamsync demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 3 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
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