minio/cmd/globals.go
Harshavardhana fb96779a8a Add large bucket support for erasure coded backend (#5160)
This PR implements an object layer which
combines input erasure sets of XL layers
into a unified namespace.

This object layer extends the existing
erasure coded implementation, it is assumed
in this design that providing > 16 disks is
a static configuration as well i.e if you started
the setup with 32 disks with 4 sets 8 disks per
pack then you would need to provide 4 sets always.

Some design details and restrictions:

- Objects are distributed using consistent ordering
  to a unique erasure coded layer.
- Each pack has its own dsync so locks are synchronized
  properly at pack (erasure layer).
- Each pack still has a maximum of 16 disks
  requirement, you can start with multiple
  such sets statically.
- Static sets set of disks and cannot be
  changed, there is no elastic expansion allowed.
- Static sets set of disks and cannot be
  changed, there is no elastic removal allowed.
- ListObjects() across sets can be noticeably
  slower since List happens on all servers,
  and is merged at this sets layer.

Fixes #5465
Fixes #5464
Fixes #5461
Fixes #5460
Fixes #5459
Fixes #5458
Fixes #5460
Fixes #5488
Fixes #5489
Fixes #5497
Fixes #5496
2018-02-15 17:45:57 -08:00

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/*
* Minio Cloud Storage, (C) 2015, 2016, 2017 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"crypto/tls"
"crypto/x509"
"os"
"runtime"
"time"
humanize "github.com/dustin/go-humanize"
"github.com/fatih/color"
"github.com/minio/minio/pkg/auth"
miniohttp "github.com/minio/minio/pkg/http"
)
// minio configuration related constants.
const (
globalMinioCertExpireWarnDays = time.Hour * 24 * 30 // 30 days.
globalMinioDefaultRegion = ""
// This is a sha256 output of ``arn:aws:iam::minio:user/admin``,
// this is kept in present form to be compatible with S3 owner ID
// requirements -
//
// ```
// The canonical user ID is the Amazon S3only concept.
// It is 64-character obfuscated version of the account ID.
// ```
// http://docs.aws.amazon.com/AmazonS3/latest/dev/example-walkthroughs-managing-access-example4.html
globalMinioDefaultOwnerID = "02d6176db174dc93cb1b899f7c6078f08654445fe8cf1b6ce98d8855f66bdbf4"
globalMinioDefaultStorageClass = "STANDARD"
globalWindowsOSName = "windows"
globalNetBSDOSName = "netbsd"
globalSolarisOSName = "solaris"
globalMinioModeFS = "mode-server-fs"
globalMinioModeXL = "mode-server-xl"
globalMinioModeDistXL = "mode-server-distributed-xl"
globalMinioModeGatewayPrefix = "mode-gateway-"
// Add new global values here.
)
const (
// Limit fields size (except file) to 1Mib since Policy document
// can reach that size according to https://aws.amazon.com/articles/1434
maxFormFieldSize = int64(1 * humanize.MiByte)
// Limit memory allocation to store multipart data
maxFormMemory = int64(5 * humanize.MiByte)
// The maximum allowed time difference between the incoming request
// date and server date during signature verification.
globalMaxSkewTime = 15 * time.Minute // 15 minutes skew allowed.
// Default Read/Write timeouts for each connection.
globalConnReadTimeout = 15 * time.Minute // Timeout after 15 minutes of no data sent by the client.
globalConnWriteTimeout = 15 * time.Minute // Timeout after 15 minutes if no data received by the client.
)
var (
// Indicates the total number of erasure coded sets configured.
globalXLSetCount int
// Indicates set drive count.
globalXLSetDriveCount int
// Indicates if the running minio server is distributed setup.
globalIsDistXL = false
// Indicates if the running minio server is an erasure-code backend.
globalIsXL = false
// This flag is set to 'true' by default
globalIsBrowserEnabled = true
// This flag is set to 'true' when MINIO_BROWSER env is set.
globalIsEnvBrowser = false
// Set to true if credentials were passed from env, default is false.
globalIsEnvCreds = false
// This flag is set to 'true' when MINIO_REGION env is set.
globalIsEnvRegion = false
// This flag is set to 'true' when MINIO_UPDATE env is set to 'off'. Default is false.
globalInplaceUpdateDisabled = false
// This flag is set to 'us-east-1' by default
globalServerRegion = globalMinioDefaultRegion
// Maximum size of internal objects parts
globalPutPartSize = int64(64 * 1024 * 1024)
// Minio local server address (in `host:port` format)
globalMinioAddr = ""
// Minio default port, can be changed through command line.
globalMinioPort = "9000"
// Holds the host that was passed using --address
globalMinioHost = ""
// Peer communication struct
globalS3Peers = s3Peers{}
// CA root certificates, a nil value means system certs pool will be used
globalRootCAs *x509.CertPool
// IsSSL indicates if the server is configured with SSL.
globalIsSSL bool
globalTLSCertificate *tls.Certificate
globalHTTPServer *miniohttp.Server
globalHTTPServerErrorCh = make(chan error)
globalOSSignalCh = make(chan os.Signal, 1)
// File to log HTTP request/response headers and body.
globalHTTPTraceFile *os.File
// List of admin peers.
globalAdminPeers = adminPeers{}
// Minio server user agent string.
globalServerUserAgent = "Minio/" + ReleaseTag + " (" + runtime.GOOS + "; " + runtime.GOARCH + ")"
globalEndpoints EndpointList
// Global server's network statistics
globalConnStats = newConnStats()
// Global HTTP request statisitics
globalHTTPStats = newHTTPStats()
// Time when object layer was initialized on start up.
globalBootTime time.Time
globalActiveCred auth.Credentials
globalPublicCerts []*x509.Certificate
globalIsEnvDomainName bool
globalDomainName string // Root domain for virtual host style requests
globalListingTimeout = newDynamicTimeout( /*30*/ 600*time.Second /*5*/, 600*time.Second) // timeout for listing related ops
globalObjectTimeout = newDynamicTimeout( /*1*/ 10*time.Minute /*10*/, 600*time.Second) // timeout for Object API related ops
globalOperationTimeout = newDynamicTimeout(10*time.Minute /*30*/, 600*time.Second) // default timeout for general ops
globalHealingTimeout = newDynamicTimeout(30*time.Minute /*1*/, 30*time.Minute) // timeout for healing related ops
// Keep connection active for clients actively using ListenBucketNotification.
globalSNSConnAlive = 5 * time.Second // Send a whitespace every 5 seconds.
// Storage classes
// Set to indicate if storage class is set up
globalIsStorageClass bool
// Set to store reduced redundancy storage class
globalRRStorageClass storageClass
// Set to store standard storage class
globalStandardStorageClass storageClass
// RPC version.
globalRPCAPIVersion = semVersion{1, 0, 0}
// Add new variable global values here.
)
// global colors.
var (
colorBold = color.New(color.Bold).SprintFunc()
colorBlue = color.New(color.FgBlue).SprintfFunc()
colorYellow = color.New(color.FgYellow).SprintfFunc()
colorRed = color.New(color.FgRed).SprintfFunc()
)
// Returns minio global information, as a key value map.
// returned list of global values is not an exhaustive
// list. Feel free to add new relevant fields.
func getGlobalInfo() (globalInfo map[string]interface{}) {
globalInfo = map[string]interface{}{
"isDistXL": globalIsDistXL,
"isXL": globalIsXL,
"isBrowserEnabled": globalIsBrowserEnabled,
"isEnvBrowser": globalIsEnvBrowser,
"isEnvCreds": globalIsEnvCreds,
"isEnvRegion": globalIsEnvRegion,
"isSSL": globalIsSSL,
"serverRegion": globalServerRegion,
"serverUserAgent": globalServerUserAgent,
// Add more relevant global settings here.
}
return globalInfo
}