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91d8bddbd1
sendfile implementation to perform DMA on all platforms Go stdlib already supports sendfile/splice implementations for - Linux - Windows - *BSD - Solaris Along with this change however O_DIRECT for reads() must be removed as well since we need to use sendfile() implementation The main reason to add O_DIRECT for reads was to reduce the chances of page-cache causing OOMs for MinIO, however it would seem that avoiding buffer copies from user-space to kernel space this issue is not a problem anymore. There is no Go based memory allocation required, and neither the page-cache is referenced back to MinIO. This page- cache reference is fully owned by kernel at this point, this essentially should solve the problem of page-cache build up. With this now we also support SG - when NIC supports Scatter/Gather https://en.wikipedia.org/wiki/Gather/scatter_(vector_addressing)
115 lines
4.2 KiB
Go
115 lines
4.2 KiB
Go
// Copyright (c) 2015-2023 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package api
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import "github.com/minio/minio/internal/config"
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// Help template for storageclass feature.
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var (
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defaultHelpPostfix = func(key string) string {
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return config.DefaultHelpPostfix(DefaultKVS, key)
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}
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Help = config.HelpKVS{
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config.HelpKV{
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Key: apiRequestsMax,
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Description: `set the maximum number of concurrent requests` + defaultHelpPostfix(apiRequestsMax),
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Optional: true,
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Type: "number",
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},
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config.HelpKV{
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Key: apiRequestsDeadline,
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Description: `set the deadline for API requests waiting to be processed` + defaultHelpPostfix(apiRequestsDeadline),
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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: apiClusterDeadline,
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Description: `set the deadline for cluster readiness check` + defaultHelpPostfix(apiClusterDeadline),
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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: apiCorsAllowOrigin,
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Description: `set comma separated list of origins allowed for CORS requests` + defaultHelpPostfix(apiCorsAllowOrigin),
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Optional: true,
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Type: "csv",
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},
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config.HelpKV{
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Key: apiRemoteTransportDeadline,
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Description: `set the deadline for API requests on remote transports while proxying between federated instances e.g. "2h"` + defaultHelpPostfix(apiRemoteTransportDeadline),
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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: apiListQuorum,
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Description: `set the acceptable quorum expected for list operations e.g. "optimal", "reduced", "disk", "strict"` + defaultHelpPostfix(apiListQuorum),
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Optional: true,
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Type: "string",
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},
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config.HelpKV{
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Key: apiReplicationPriority,
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Description: `set replication priority` + defaultHelpPostfix(apiReplicationPriority),
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Optional: true,
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Type: "string",
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},
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config.HelpKV{
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Key: apiTransitionWorkers,
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Description: `set the number of transition workers` + defaultHelpPostfix(apiTransitionWorkers),
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Optional: true,
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Type: "number",
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},
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config.HelpKV{
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Key: apiStaleUploadsExpiry,
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Description: `set to expire stale multipart uploads older than this values` + defaultHelpPostfix(apiStaleUploadsExpiry),
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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: apiStaleUploadsCleanupInterval,
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Description: `set to change intervals when stale multipart uploads are expired` + defaultHelpPostfix(apiStaleUploadsCleanupInterval),
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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: apiDeleteCleanupInterval,
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Description: `set to change intervals when deleted objects are permanently deleted from ".trash" folder` + defaultHelpPostfix(apiDeleteCleanupInterval),
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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: apiODirect,
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Description: "set to enable or disable O_DIRECT for writes under special conditions. NOTE: do not disable O_DIRECT without prior testing" + defaultHelpPostfix(apiODirect),
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Optional: true,
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Type: "boolean",
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},
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config.HelpKV{
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Key: apiRootAccess,
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Description: "turn 'off' root credential access for all API calls including s3, admin operations" + defaultHelpPostfix(apiRootAccess),
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Optional: true,
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Type: "boolean",
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},
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config.HelpKV{
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Key: apiSyncEvents,
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Description: "set to enable synchronous bucket notifications" + defaultHelpPostfix(apiSyncEvents),
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Optional: true,
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Type: "boolean",
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},
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}
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)
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