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server: Log stats (metrics) on fatal error

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This might help users troubleshoot rare crashes.
This commit is contained in:
Richard Hansen 2021-03-10 05:12:14 -05:00 • committed by John McLear
parent d2610284ad
commit 9b82d1d37d
1 changed files with 2 additions and 2 deletions
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4
src/node/server.js
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@ -46,6 +46,7 @@ const hooks = require('../static/js/pluginfw/hooks');
const pluginDefs = require('../static/js/pluginfw/plugin_defs'); const pluginDefs = require('../static/js/pluginfw/plugin_defs');
const plugins = require('../static/js/pluginfw/plugins'); const plugins = require('../static/js/pluginfw/plugins');
const settings = require('./utils/Settings'); const settings = require('./utils/Settings');
const stats = require('./stats');
const logger = log4js.getLogger('server'); const logger = log4js.getLogger('server');
@ -104,8 +105,6 @@ exports.start = async () => {
// Check if Etherpad version is up-to-date // Check if Etherpad version is up-to-date
UpdateCheck.check(); UpdateCheck.check();
// start up stats counting system
const stats = require('./stats');
stats.gauge('memoryUsage', () => process.memoryUsage().rss); stats.gauge('memoryUsage', () => process.memoryUsage().rss);
stats.gauge('memoryUsageHeap', () => process.memoryUsage().heapUsed); stats.gauge('memoryUsageHeap', () => process.memoryUsage().heapUsed);
@ -215,6 +214,7 @@ exports.exit = async (err = null) => {
logger.info('Received SIGTERM signal'); logger.info('Received SIGTERM signal');
err = null; err = null;
} else if (err != null) { } else if (err != null) {
logger.error(`Metrics at time of fatal error:\n${JSON.stringify(stats.toJSON(), null, 2)}`);
logger.error(err.stack || err.toString()); logger.error(err.stack || err.toString());
process.exitCode = 1; process.exitCode = 1;
if (exitCalled) { if (exitCalled) {