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Merge pull request #4890 from overleaf/jpa-clsi-maint

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[clsi] put server into maintenance mode when reaching zero capacity

GitOrigin-RevId: d1af260a3bfba7852519b3bc369a6747e79f3b18
This commit is contained in:
Jakob Ackermann 2021-08-26 14:02:09 +02:00 committed by Copybot
parent 18192e4559
commit 1dc9f428fa
1 changed files with 11 additions and 3 deletions
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14
services/clsi/app.js
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@ -330,11 +330,19 @@ const loadTcpServer = net.createServer(function (socket) {
}
const freeLoad = availableWorkingCpus - currentLoad
let freeLoadPercentage = Math.round((freeLoad / availableWorkingCpus) * 100)
const freeLoadPercentage = Math.round(
(freeLoad / availableWorkingCpus) * 100
)
if (freeLoadPercentage <= 0) {
freeLoadPercentage = 0 // when its 0 the server is set to drain and will move projects to different servers
// When its 0 the server is set to drain implicitly.
// Drain will move new projects to different servers.
// Drain will keep existing projects assigned to the same server.
// Maint will more existing and new projects to different servers.
socket.write(`maint, 0%\n`, 'ASCII')
} else {
// Ready will cancel the maint state.
socket.write(`up, ready, ${freeLoadPercentage}%\n`, 'ASCII')
}
socket.write(`up, ${freeLoadPercentage}%\n`, 'ASCII')
return socket.end()
} else {
socket.write(`${STATE}\n`, 'ASCII')