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Fix round-robin index calculation and job rejection.

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If no render nodes were registered, the modulo on nodes.length
would push NaN into index, causing an unrecoverable state.
Not deleting rejected jobs also leaked memory.
This commit is contained in:
Jan Groß
2023-06-16 12:26:36 +02:00
parent 28c5f821d8
commit fc6647e873
1 changed files with 5 additions and 3 deletions
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8
src/index.js
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@@ -58,12 +58,14 @@ app.post("/jobs", async (req, res) => {
jobs['queued'][jobId] = req.body;
jobs['queued'][jobId]['jobId'] = jobId;
console.log(`Queued Job ${jobId}`);
console.log(`Received Job ${jobId}`);
let nodes = Array.from(wss.clients);
nodeIndex = (nodeIndex + 1) % nodes.length;
nodeIndex = nodes.length === 0 ? 0 : ++nodeIndex % nodes.length;
var client = nodes[nodeIndex];
if(!client) {
res.status(503).json({ 'message': 'No render nodes available', 'jobId': jobId, 'details': JSON.stringify(nodes) });
res.status(503).json({ 'message': 'No render nodes available', 'jobId': jobId });
delete jobs['queued'][jobId];
console.log(`Rejected Job ${jobId}! No render nodes available`);
return;
}
client.send(JSON.stringify({"job": req.body}));