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Fix MaxWorkerOpenFiles calculation on high cores nodes (#7107)

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* Fix MaxWorkerOpenFiles calculation on high cores nodes

* Add e2e test for rlimit_nofile

* Fix doc for max-worker-open-files
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Mansur Marvanov 2021-06-29 22:14:41 +09:00 • committed by GitHub
parent 8328b532f7
commit 4bdb5538a4
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3 changed files with 60 additions and 7 deletions
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7
internal/ingress/controller/nginx.go
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@ -512,12 +512,7 @@ func (n NGINXController) generateTemplate(cfg ngx_config.Configuration, ingressC
if cfg.MaxWorkerOpenFiles == 0 {
// the limit of open files is per worker process
// and we leave some room to avoid consuming all the FDs available
wp, err := strconv.Atoi(cfg.WorkerProcesses)
klog.V(3).InfoS("Worker processes", "count", wp)
if err != nil {
wp = 1
}
maxOpenFiles := (rlimitMaxNumFiles() / wp) - 1024
maxOpenFiles := rlimitMaxNumFiles() - 1024
klog.V(3).InfoS("Maximum number of open file descriptors", "value", maxOpenFiles)
if maxOpenFiles < 1024 {
// this means the value of RLIMIT_NOFILE is too low.