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96c0ce1f0c
supports `mc admin config set <alias> heal sleep=100ms` to enable more aggressive healing under certain times. also optimize some areas that were doing extra checks than necessary when bitrotscan was enabled, avoid double sleeps make healing more predictable. fixes #10497
107 lines
2.8 KiB
Go
107 lines
2.8 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2020 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package heal
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import (
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"fmt"
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"strconv"
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"time"
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"github.com/minio/minio/cmd/config"
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"github.com/minio/minio/pkg/env"
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)
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// Compression environment variables
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const (
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Bitrot = "bitrotscan"
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Sleep = "max_sleep"
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IOCount = "max_io"
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EnvBitrot = "MINIO_HEAL_BITROTSCAN"
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EnvSleep = "MINIO_HEAL_MAX_SLEEP"
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EnvIOCount = "MINIO_HEAL_MAX_IO"
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)
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// Config represents the heal settings.
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type Config struct {
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// Bitrot will perform bitrot scan on local disk when checking objects.
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Bitrot bool `json:"bitrotscan"`
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// maximum sleep duration between objects to slow down heal operation.
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Sleep time.Duration `json:"sleep"`
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IOCount int `json:"iocount"`
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}
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var (
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// DefaultKVS - default KV config for heal settings
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DefaultKVS = config.KVS{
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config.KV{
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Key: Bitrot,
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Value: config.EnableOff,
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},
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config.KV{
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Key: Sleep,
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Value: "1s",
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},
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config.KV{
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Key: IOCount,
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Value: "10",
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},
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}
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// Help provides help for config values
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Help = config.HelpKVS{
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config.HelpKV{
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Key: Bitrot,
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Description: `perform bitrot scan on disks when checking objects during crawl`,
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Optional: true,
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Type: "on|off",
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},
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config.HelpKV{
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Key: Sleep,
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Description: `maximum sleep duration between objects to slow down heal operation. eg. 2s`,
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Optional: true,
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Type: "duration",
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},
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config.HelpKV{
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Key: IOCount,
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Description: `maximum IO requests allowed between objects to slow down heal operation. eg. 3`,
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Optional: true,
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Type: "int",
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},
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}
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)
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// LookupConfig - lookup config and override with valid environment settings if any.
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func LookupConfig(kvs config.KVS) (cfg Config, err error) {
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if err = config.CheckValidKeys(config.HealSubSys, kvs, DefaultKVS); err != nil {
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return cfg, err
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}
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cfg.Bitrot, err = config.ParseBool(env.Get(EnvBitrot, kvs.Get(Bitrot)))
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if err != nil {
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return cfg, fmt.Errorf("'heal:bitrotscan' value invalid: %w", err)
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}
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cfg.Sleep, err = time.ParseDuration(env.Get(EnvSleep, kvs.Get(Sleep)))
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if err != nil {
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return cfg, fmt.Errorf("'heal:max_sleep' value invalid: %w", err)
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}
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cfg.IOCount, err = strconv.Atoi(env.Get(EnvIOCount, kvs.Get(IOCount)))
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if err != nil {
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return cfg, fmt.Errorf("'heal:max_io' value invalid: %w", err)
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}
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return cfg, nil
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}
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