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on darwin fallback to maximum possible rlimit (#9859)

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fixes #9857
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Harshavardhana 2020-06-17 07:47:42 -07:00 committed by GitHub
parent f5e1b3d09e
commit 7c061fa3b6
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1 changed files with 11 additions and 1 deletions
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12
pkg/sys/rlimit-file_nix.go
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@ -18,7 +18,10 @@
package sys
import "syscall"
import (
"runtime"
"syscall"
)
// GetMaxOpenFileLimit - returns maximum file descriptor number that can be opened by this process.
func GetMaxOpenFileLimit() (curLimit, maxLimit uint64, err error) {
@ -33,6 +36,13 @@ func GetMaxOpenFileLimit() (curLimit, maxLimit uint64, err error) {
// SetMaxOpenFileLimit - sets maximum file descriptor number that can be opened by this process.
func SetMaxOpenFileLimit(curLimit, maxLimit uint64) error {
if runtime.GOOS == "darwin" && curLimit > 10240 {
// The max file limit is 10240, even though
// the max returned by Getrlimit is 1<<63-1.
// This is OPEN_MAX in sys/syslimits.h.
// refer https://github.com/golang/go/issues/30401
curLimit = 10240
}
rlimit := syscall.Rlimit{Cur: curLimit, Max: maxLimit}
return syscall.Setrlimit(syscall.RLIMIT_NOFILE, &rlimit)
}