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Code Issues Releases Wiki Activity

Added server watchdog feature.

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Ylian Saint-Hilaire 2020-07-03 11:03:15 -07:00
parent f4cb0f2d72
commit fbabddee79
4 changed files with 42 additions and 20 deletions
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30
meshcentral.js
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@ -435,7 +435,7 @@ function CreateMeshCentralServer(config, args) {
try {
var errlogpath = null;
if (typeof obj.args.mesherrorlogpath == 'string') { errlogpath = obj.path.join(obj.args.mesherrorlogpath, 'mesherrors.txt'); } else { errlogpath = obj.getConfigFilePath('mesherrors.txt'); }
obj.fs.appendFileSync(obj.getConfigFilePath('mesherrors.txt'), '-------- ' + new Date().toLocaleString() + ' ---- ' + getCurrentVerion() + ' --------\r\n\r\n' + data + '\r\n\r\n\r\n');
obj.fs.appendFileSync(errlogpath, '-------- ' + new Date().toLocaleString() + ' ---- ' + getCurrentVerion() + ' --------\r\n\r\n' + data + '\r\n\r\n\r\n');
} catch (ex) { console.log('ERROR: Unable to write to mesherrors.txt.'); }
});
childProcess.on('close', function (code) { if ((code != 0) && (code != 123)) { /* console.log("Exited with code " + code); */ } });
@ -1431,6 +1431,34 @@ function CreateMeshCentralServer(config, args) {
}
}
}
// Start watchdog timer if needed
// This is used to monitor if NodeJS is servicing IO correctly or getting held up a lot. Add this line to the settings section of config.json
// "watchDog": { "interval": 100, "timeout": 150 }
// This will check every 100ms, if the timer is more than 150ms late, it will warn.
if ((typeof config.settings.watchdog == 'object') && (typeof config.settings.watchdog.interval == 'number') && (typeof config.settings.watchdog.timeout == 'number') && (config.settings.watchdog.interval >= 50) && (config.settings.watchdog.timeout >= 50)) {
obj.watchdogtime = Date.now();
obj.watchdogmax = 0;
obj.watchdogmaxtime = null;
obj.watchdogtable = [];
obj.watchdog = setInterval(function () {
var now = Date.now(), delta = now - obj.watchdogtime - config.settings.watchdog.interval;
if (delta > obj.watchdogmax) { obj.watchdogmax = delta; obj.watchdogmaxtime = new Date().toLocaleString(); }
if (delta > config.settings.watchdog.timeout) {
const msg = obj.common.format("Watchdog timer timeout, {0}ms.", delta);
obj.watchdogtable.push(new Date().toLocaleString() + ', ' + delta + 'ms');
while (obj.watchdogtable.length > 10) { obj.watchdogtable.shift(); }
obj.debug('main', msg);
try {
var errlogpath = null;
if (typeof obj.args.mesherrorlogpath == 'string') { errlogpath = obj.path.join(obj.args.mesherrorlogpath, 'mesherrors.txt'); } else { errlogpath = obj.getConfigFilePath('mesherrors.txt'); }
obj.fs.appendFileSync(errlogpath, new Date().toLocaleString() + ': ' + msg + '\r\n');
} catch (ex) { console.log('ERROR: Unable to write to mesherrors.txt.'); }
}
obj.watchdogtime = now;
}, config.settings.watchdog.interval);
obj.debug('main', "Started watchdog timer.");
}
});
});
};