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https://github.com/minio/minio.git
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a3e806ed61
This PR adds disk based edge caching support for minio server. Cache settings can be configured in config.json to take list of disk drives, cache expiry in days and file patterns to exclude from cache or via environment variables MINIO_CACHE_DRIVES, MINIO_CACHE_EXCLUDE and MINIO_CACHE_EXPIRY Design assumes that Atime support is enabled and the list of cache drives is fixed. - Objects are cached on both GET and PUT/POST operations. - Expiry is used as hint to evict older entries from cache, or if 80% of cache capacity is filled. - When object storage backend is down, GET, LIST and HEAD operations fetch object seamlessly from cache. Current Limitations - Bucket policies are not cached, so anonymous operations are not supported in offline mode. - Objects are distributed using deterministic hashing among list of cache drives specified.If one or more drives go offline, or cache drive configuration is altered - performance could degrade to linear lookup. Fixes #4026
216 lines
7.1 KiB
Go
216 lines
7.1 KiB
Go
/*
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* Minio Cloud Storage, (C) 2015, 2016, 2017, 2018 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 cmd
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import (
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"crypto/tls"
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"crypto/x509"
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"os"
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"runtime"
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"time"
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humanize "github.com/dustin/go-humanize"
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"github.com/fatih/color"
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"github.com/minio/minio/pkg/auth"
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miniohttp "github.com/minio/minio/pkg/http"
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)
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// minio configuration related constants.
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const (
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globalMinioCertExpireWarnDays = time.Hour * 24 * 30 // 30 days.
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globalMinioDefaultRegion = ""
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// This is a sha256 output of ``arn:aws:iam::minio:user/admin``,
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// this is kept in present form to be compatible with S3 owner ID
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// requirements -
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//
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// ```
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// The canonical user ID is the Amazon S3–only concept.
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// It is 64-character obfuscated version of the account ID.
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// ```
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// http://docs.aws.amazon.com/AmazonS3/latest/dev/example-walkthroughs-managing-access-example4.html
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globalMinioDefaultOwnerID = "02d6176db174dc93cb1b899f7c6078f08654445fe8cf1b6ce98d8855f66bdbf4"
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globalMinioDefaultStorageClass = "STANDARD"
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globalWindowsOSName = "windows"
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globalNetBSDOSName = "netbsd"
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globalSolarisOSName = "solaris"
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globalMinioModeFS = "mode-server-fs"
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globalMinioModeXL = "mode-server-xl"
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globalMinioModeDistXL = "mode-server-distributed-xl"
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globalMinioModeGatewayPrefix = "mode-gateway-"
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// Add new global values here.
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)
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const (
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// Limit fields size (except file) to 1Mib since Policy document
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// can reach that size according to https://aws.amazon.com/articles/1434
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maxFormFieldSize = int64(1 * humanize.MiByte)
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// Limit memory allocation to store multipart data
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maxFormMemory = int64(5 * humanize.MiByte)
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// The maximum allowed time difference between the incoming request
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// date and server date during signature verification.
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globalMaxSkewTime = 15 * time.Minute // 15 minutes skew allowed.
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// Default Read/Write timeouts for each connection.
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globalConnReadTimeout = 15 * time.Minute // Timeout after 15 minutes of no data sent by the client.
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globalConnWriteTimeout = 15 * time.Minute // Timeout after 15 minutes if no data received by the client.
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// Expiry duration after which the multipart uploads are deemed stale.
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globalMultipartExpiry = time.Hour * 24 * 14 // 2 weeks.
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// Cleanup interval when the stale multipart cleanup is initiated.
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globalMultipartCleanupInterval = time.Hour * 24 // 24 hrs.
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)
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var (
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// Indicates the total number of erasure coded sets configured.
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globalXLSetCount int
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// Indicates set drive count.
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globalXLSetDriveCount int
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// Indicates if the running minio server is distributed setup.
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globalIsDistXL = false
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// Indicates if the running minio server is an erasure-code backend.
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globalIsXL = false
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// This flag is set to 'true' by default
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globalIsBrowserEnabled = true
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// This flag is set to 'true' when MINIO_BROWSER env is set.
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globalIsEnvBrowser = false
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// Set to true if credentials were passed from env, default is false.
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globalIsEnvCreds = false
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// This flag is set to 'true' when MINIO_REGION env is set.
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globalIsEnvRegion = false
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// This flag is set to 'true' when MINIO_UPDATE env is set to 'off'. Default is false.
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globalInplaceUpdateDisabled = false
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// This flag is set to 'us-east-1' by default
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globalServerRegion = globalMinioDefaultRegion
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// Maximum size of internal objects parts
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globalPutPartSize = int64(64 * 1024 * 1024)
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// Minio local server address (in `host:port` format)
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globalMinioAddr = ""
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// Minio default port, can be changed through command line.
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globalMinioPort = "9000"
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// Holds the host that was passed using --address
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globalMinioHost = ""
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globalNotificationSys *NotificationSys
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// CA root certificates, a nil value means system certs pool will be used
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globalRootCAs *x509.CertPool
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// IsSSL indicates if the server is configured with SSL.
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globalIsSSL bool
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globalTLSCertificate *tls.Certificate
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globalHTTPServer *miniohttp.Server
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globalHTTPServerErrorCh = make(chan error)
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globalOSSignalCh = make(chan os.Signal, 1)
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// File to log HTTP request/response headers and body.
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globalHTTPTraceFile *os.File
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// List of admin peers.
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globalAdminPeers = adminPeers{}
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// Minio server user agent string.
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globalServerUserAgent = "Minio/" + ReleaseTag + " (" + runtime.GOOS + "; " + runtime.GOARCH + ")"
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globalEndpoints EndpointList
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// Global server's network statistics
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globalConnStats = newConnStats()
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// Global HTTP request statisitics
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globalHTTPStats = newHTTPStats()
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// Time when object layer was initialized on start up.
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globalBootTime time.Time
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globalActiveCred auth.Credentials
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globalPublicCerts []*x509.Certificate
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globalIsEnvDomainName bool
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globalDomainName string // Root domain for virtual host style requests
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globalListingTimeout = newDynamicTimeout( /*30*/ 600*time.Second /*5*/, 600*time.Second) // timeout for listing related ops
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globalObjectTimeout = newDynamicTimeout( /*1*/ 10*time.Minute /*10*/, 600*time.Second) // timeout for Object API related ops
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globalOperationTimeout = newDynamicTimeout(10*time.Minute /*30*/, 600*time.Second) // default timeout for general ops
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globalHealingTimeout = newDynamicTimeout(30*time.Minute /*1*/, 30*time.Minute) // timeout for healing related ops
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// Storage classes
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// Set to indicate if storage class is set up
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globalIsStorageClass bool
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// Set to store reduced redundancy storage class
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globalRRStorageClass storageClass
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// Set to store standard storage class
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globalStandardStorageClass storageClass
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globalWORMEnabled bool
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// Is Disk Caching set up
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globalIsDiskCacheEnabled bool
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// Disk cache drives
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globalCacheDrives []string
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// Disk cache excludes
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globalCacheExcludes []string
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// Disk cache expiry
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globalCacheExpiry = 90
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// Add new variable global values here.
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)
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// global colors.
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var (
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colorBold = color.New(color.Bold).SprintFunc()
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colorBlue = color.New(color.FgBlue).SprintfFunc()
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colorYellow = color.New(color.FgYellow).SprintfFunc()
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colorRed = color.New(color.FgRed).SprintfFunc()
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)
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// Returns minio global information, as a key value map.
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// returned list of global values is not an exhaustive
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// list. Feel free to add new relevant fields.
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func getGlobalInfo() (globalInfo map[string]interface{}) {
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globalInfo = map[string]interface{}{
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"isDistXL": globalIsDistXL,
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"isXL": globalIsXL,
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"isBrowserEnabled": globalIsBrowserEnabled,
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"isEnvBrowser": globalIsEnvBrowser,
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"isEnvCreds": globalIsEnvCreds,
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"isEnvRegion": globalIsEnvRegion,
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"isSSL": globalIsSSL,
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"serverRegion": globalServerRegion,
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"serverUserAgent": globalServerUserAgent,
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// Add more relevant global settings here.
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}
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return globalInfo
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}
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