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Code Issues Activity

Added queue depth to requests (#19987)

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refs
[CFR-14](https://linear.app/tryghost/issue/CFR-14/ensure-queue-depth-is-always-set-on-req)

Added queue depth to any request that passes through the request queue
middleware instead of only adding it to the request if it is queued.
This makes it easier to report on the queue depth within Elastic.
This commit is contained in:
Michael Barrett 2024-04-11 09:24:04 +01:00 • committed by GitHub
parent d12b79e036
commit 9e78412268
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2 changed files with 11 additions and 25 deletions
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4
ghost/core/core/server/web/parent/middleware/queue-request.js
View file

@ -38,8 +38,6 @@ module.exports = function queueRequest(
*/
queue.queue.on('queue', (job) => {
debug(`Request queued: ${job.data.req.path}`);
job.data.req.queueDepth = job.queue.getLength();
});
queue.queue.on('complete', (job) => {
@ -47,6 +45,8 @@ module.exports = function queueRequest(
});
return (req, res, next) => {
req.queueDepth = queue.queue.getLength();
// Do not queue requests for static assets - We assume that any path
// with a file extension is a static asset
if (path.extname(req.path)) {

32
ghost/core/test/unit/server/web/parent/middleware/queue-request.test.js
View file

@ -16,7 +16,8 @@ describe('Queue request middleware', function () {
queue = sinon.stub();
queue.queue = {
on: sinon.stub()
on: sinon.stub(),
getLength: sinon.stub().returns(0)
};
queueFactory = sinon.stub().returns(queue);
@ -60,33 +61,18 @@ describe('Queue request middleware', function () {
assert(queue.calledWith(req, res, next), 'queue should be called with the correct arguments');
});
it('should record the queue depth on a request when it has queued', function () {
const queueEvent = 'queue';
it('should record the queue depth on a request', function () {
const queueLength = 123;
// Assert event listener is added
queueRequest(config, queueFactory);
queue.queue.getLength.returns(queueLength);
assert(queue.queue.on.calledWith(queueEvent), `"${queueEvent}" event listener should be added`);
req.path = '/foo/bar';
const listener = queue.queue.on.args.find(arg => arg[0] === queueEvent)[1];
const mw = queueRequest(config, queueFactory);
// Assert event listener implementation
const queueJob = {
data: {
req: {
path: '/foo/bar'
}
},
queue: {
getLength() {
return queueLength;
}
}
};
mw(req, res, next);
listener(queueJob);
assert(queueJob.data.req.queueDepth === queueLength, 'queueDepth should be set on the request');
assert(queue.queue.getLength, 'queue should be called once');
assert(req.queueDepth === queueLength, 'queue depth should be set on the request');
});
});