minio/internal/config/api/help.go
Harshavardhana 70e1cbda21
allow disabling O_DIRECT in certain environments for reads (#14115)
repeated reads on single large objects in HPC like
workloads, need the following option to disable
O_DIRECT for a more effective usage of the kernel
page-cache.

However this optional should be used in very specific
situations only, and shouldn't be enabled on all
servers.

NVMe servers benefit always from keeping O_DIRECT on.
2022-01-17 08:34:14 -08:00

105 lines
3.6 KiB
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// 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 api
import "github.com/minio/minio/internal/config"
// Help template for storageclass feature.
var (
Help = config.HelpKVS{
config.HelpKV{
Key: apiRequestsMax,
Description: `set the maximum number of concurrent requests, e.g. "1600"`,
Optional: true,
Type: "number",
},
config.HelpKV{
Key: apiRequestsDeadline,
Description: `set the deadline for API requests waiting to be processed e.g. "1m"`,
Optional: true,
Type: "duration",
},
config.HelpKV{
Key: apiClusterDeadline,
Description: `set the deadline for cluster readiness check e.g. "10s"`,
Optional: true,
Type: "duration",
},
config.HelpKV{
Key: apiCorsAllowOrigin,
Description: `set comma separated list of origins allowed for CORS requests e.g. "https://example1.com,https://example2.com"`,
Optional: true,
Type: "csv",
},
config.HelpKV{
Key: apiRemoteTransportDeadline,
Description: `set the deadline for API requests on remote transports while proxying between federated instances e.g. "2h"`,
Optional: true,
Type: "duration",
},
config.HelpKV{
Key: apiListQuorum,
Description: `set the acceptable quorum expected for list operations e.g. "optimal", "reduced", "disk", "strict", defaults to "strict"`,
Optional: true,
Type: "string",
},
config.HelpKV{
Key: apiReplicationWorkers,
Description: `set the number of replication workers, defaults to 100`,
Optional: true,
Type: "number",
},
config.HelpKV{
Key: apiReplicationFailedWorkers,
Description: `set the number of replication workers for recently failed replicas, defaults to 4`,
Optional: true,
Type: "number",
},
config.HelpKV{
Key: apiTransitionWorkers,
Description: `set the number of transition workers, defaults to 100`,
Optional: true,
Type: "number",
},
config.HelpKV{
Key: apiStaleUploadsExpiry,
Description: `set to expire stale multipart uploads older than this value, defaults to 24 hours`,
Optional: true,
Type: "duration",
},
config.HelpKV{
Key: apiStaleUploadsCleanupInterval,
Description: `set to change intervals when stale multipart uploads are expired, defaults to every 6 hours`,
Optional: true,
Type: "duration",
},
config.HelpKV{
Key: apiDeleteCleanupInterval,
Description: `set to change intervals when deleted objects are permanently deleted from ".trash" folder, defaults to every 5 minutes`,
Optional: true,
Type: "duration",
},
config.HelpKV{
Key: apiDisableODirect,
Description: "set to disable O_DIRECT for reads under special conditions. NOTE: it is not recommended to disable O_DIRECT without prior testing.",
Optional: true,
Type: "boolean",
},
}
)