minio/cmd/server-rlimit.go
Harshavardhana 293d261cf9
use available memory to restrict API calls (#13047)
also choose 90% of the available memory
to calculate maximum API calls.
2021-08-24 09:14:46 -07:00

61 lines
1.8 KiB
Go

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"runtime/debug"
"github.com/minio/minio/internal/logger"
"github.com/minio/pkg/sys"
)
func setMaxResources() (err error) {
// Set the Go runtime max threads threshold to 90% of kernel setting.
sysMaxThreads, mErr := sys.GetMaxThreads()
if mErr == nil {
minioMaxThreads := (sysMaxThreads * 90) / 100
// Only set max threads if it is greater than the default one
if minioMaxThreads > 10000 {
debug.SetMaxThreads(minioMaxThreads)
}
}
var maxLimit uint64
// Set open files limit to maximum.
if _, maxLimit, err = sys.GetMaxOpenFileLimit(); err != nil {
return err
}
if maxLimit < 4096 {
logger.Info("WARNING: maximum file descriptor limit %d is too low for production servers. At least 4096 is recommended. Fix with \"ulimit -n 4096\"", maxLimit)
}
if err = sys.SetMaxOpenFileLimit(maxLimit, maxLimit); err != nil {
return err
}
// Set max memory limit as current memory limit.
if _, maxLimit, err = sys.GetMaxMemoryLimit(); err != nil {
return err
}
err = sys.SetMaxMemoryLimit(maxLimit, maxLimit)
return err
}