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Optimize startup time with adaptive server pinging #9782

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Optimize startup time with adaptive server pinging #9782

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bf654af
Update pgadmin.js
dev-hari-prasad Mar 21, 2026
a85ae2e
Fix exponential backoff logic and ping race condition in desktop startup
dev-hari-prasad Mar 26, 2026
fe1d794
Merge branch 'master' into performance/reduce-startup-delay
dev-hari-prasad Mar 26, 2026
a95ecee
Merge branch 'master' into performance/reduce-startup-delay
dev-hari-prasad Mar 26, 2026
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27 changes: 19 additions & 8 deletions runtime/src/js/pgadmin.js
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Original file line number Diff line number Diff line change
Expand Up @@ -163,7 +163,7 @@ function showErrorDialog(intervalID) {
if(!splashWindow.isVisible()) {
return;
}
clearInterval(intervalID);
clearTimeout(intervalID);
splashWindow.close();

new BrowserWindow({
Expand Down Expand Up @@ -299,22 +299,27 @@ function startDesktopMode() {
let midTime1 = currentTime + (connectionTimeout / 2);
let midTime2 = currentTime + (connectionTimeout * 2 / 3);
let pingInProgress = false;
let currentPingInterval = 100;

// ping pgAdmin server every 1 second.
// ping pgAdmin server with adaptive polling.
let pingStartTime = (new Date).getTime();
pingIntervalID = setInterval(function () {

function performPing() {
// If ping request is already send and response is not
// received no need to send another request.
if (pingInProgress)
if (pingInProgress) {
pingIntervalID = setTimeout(performPing, currentPingInterval);
return;
}

pingInProgress = true;
pingServer().then(() => {
pingInProgress = false;
splashWindow.webContents.executeJavaScript('document.getElementById(\'loader-text-status\').innerHTML = \'pgAdmin 4 started\';', true);
// Set the pgAdmin process object to misc
misc.setProcessObject(pgadminServerProcess);

clearInterval(pingIntervalID);
clearTimeout(pingIntervalID);
let appEndTime = (new Date).getTime();
misc.writeServerLog('------------------------------------------');
misc.writeServerLog('Total time taken to ping pgAdmin4 server: ' + (appEndTime - pingStartTime) / 1000 + ' Sec');
Expand All @@ -329,6 +334,7 @@ function startDesktopMode() {
// and stop pinging the server.
if (curTime >= endTime) {
showErrorDialog(pingIntervalID);
return;
}

if (curTime > midTime1) {
Expand All @@ -338,10 +344,15 @@ function startDesktopMode() {
splashWindow.webContents.executeJavaScript('document.getElementById(\'loader-text-status\').innerHTML = \'Almost there...\';', true);
}
}
});

pingInProgress = true;
}, 1000);
pingIntervalID = setTimeout(performPing, currentPingInterval);
if (currentPingInterval < 1000) {
currentPingInterval = Math.min(currentPingInterval * 2, 1000);
}
});
}

performPing();
}

// This function is used to hide the splash screen and create/launch
Expand Down
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