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303 lines
9.9 KiB
303 lines
9.9 KiB
/*
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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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"net/http"
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"os"
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"os/signal"
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"runtime"
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"syscall"
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"github.com/minio/cli"
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"github.com/minio/dsync"
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"github.com/minio/minio/pkg/errors"
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miniohttp "github.com/minio/minio/pkg/http"
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)
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var serverFlags = []cli.Flag{
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cli.StringFlag{
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Name: "address",
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Value: ":" + globalMinioPort,
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Usage: "Bind to a specific ADDRESS:PORT, ADDRESS can be an IP or hostname.",
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},
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}
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var serverCmd = cli.Command{
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Name: "server",
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Usage: "Start object storage server.",
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Flags: append(serverFlags, globalFlags...),
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Action: serverMain,
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CustomHelpTemplate: `NAME:
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{{.HelpName}} - {{.Usage}}
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USAGE:
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{{.HelpName}} {{if .VisibleFlags}}[FLAGS] {{end}}DIR1 [DIR2..]
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{{.HelpName}} {{if .VisibleFlags}}[FLAGS] {{end}}DIR{1...64}
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DIR:
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DIR points to a directory on a filesystem. When you want to combine
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multiple drives into a single large system, pass one directory per
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filesystem separated by space. You may also use a '...' convention
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to abbreviate the directory arguments. Remote directories in a
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distributed setup are encoded as HTTP(s) URIs.
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{{if .VisibleFlags}}
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FLAGS:
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{{range .VisibleFlags}}{{.}}
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{{end}}{{end}}
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ENVIRONMENT VARIABLES:
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ACCESS:
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MINIO_ACCESS_KEY: Custom username or access key of minimum 3 characters in length.
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MINIO_SECRET_KEY: Custom password or secret key of minimum 8 characters in length.
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BROWSER:
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MINIO_BROWSER: To disable web browser access, set this value to "off".
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CACHE:
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MINIO_CACHE_DRIVES: List of mounted drives or directories delimited by ";".
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MINIO_CACHE_EXCLUDE: List of cache exclusion patterns delimited by ";".
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MINIO_CACHE_EXPIRY: Cache expiry duration in days.
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REGION:
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MINIO_REGION: To set custom region. By default all regions are accepted.
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UPDATE:
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MINIO_UPDATE: To turn off in-place upgrades, set this value to "off".
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DOMAIN:
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MINIO_DOMAIN: To enable virtual-host-style requests, set this value to Minio host domain name.
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WORM:
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MINIO_WORM: To turn on Write-Once-Read-Many in server, set this value to "on".
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EXAMPLES:
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1. Start minio server on "/home/shared" directory.
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$ {{.HelpName}} /home/shared
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2. Start minio server bound to a specific ADDRESS:PORT.
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$ {{.HelpName}} --address 192.168.1.101:9000 /home/shared
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3. Start minio server and enable virtual-host-style requests.
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$ export MINIO_DOMAIN=mydomain.com
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$ {{.HelpName}} --address mydomain.com:9000 /mnt/export
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3. Start minio server on a 12 disks server.
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$ {{.HelpName}} /mnt/export1/ /mnt/export2/ /mnt/export3/ /mnt/export4/ \
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/mnt/export5/ /mnt/export6/ /mnt/export7/ /mnt/export8/ /mnt/export9/ \
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/mnt/export10/ /mnt/export11/ /mnt/export12/
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4. Start distributed minio server on a 4 node setup with 1 drive each. Run following commands on all the 4 nodes.
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$ export MINIO_ACCESS_KEY=minio
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$ export MINIO_SECRET_KEY=miniostorage
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$ {{.HelpName}} http://192.168.1.11/mnt/export/ http://192.168.1.12/mnt/export/ \
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http://192.168.1.13/mnt/export/ http://192.168.1.14/mnt/export/
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5. Start minio server on 64 disks server.
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$ {{.HelpName}} /mnt/export{1...64}
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6. Start distributed minio server on an 8 node setup with 8 drives each. Run following command on all the 8 nodes.
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$ export MINIO_ACCESS_KEY=minio
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$ export MINIO_SECRET_KEY=miniostorage
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$ {{.HelpName}} http://node{1...8}.example.com/mnt/export/{1...8}
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7. Start minio server with edge caching enabled.
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$ export MINIO_CACHE_DRIVES="/mnt/drive1;/mnt/drive2;/mnt/drive3;/mnt/drive4"
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$ export MINIO_CACHE_EXCLUDE="bucket1/*;*.png"
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$ export MINIO_CACHE_EXPIRY=40
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$ {{.HelpName}} /home/shared
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`,
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}
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func serverHandleCmdArgs(ctx *cli.Context) {
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// Handle common command args.
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handleCommonCmdArgs(ctx)
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// Server address.
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serverAddr := ctx.String("address")
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fatalIf(CheckLocalServerAddr(serverAddr), "Invalid address ‘%s’ in command line argument.", serverAddr)
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var setupType SetupType
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var err error
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if len(ctx.Args()) > serverCommandLineArgsMax {
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fatalIf(errInvalidArgument, "Invalid total number of arguments (%d) passed, supported upto 32 unique arguments", len(ctx.Args()))
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}
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globalMinioAddr, globalEndpoints, setupType, globalXLSetCount, globalXLSetDriveCount, err = createServerEndpoints(serverAddr, ctx.Args()...)
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fatalIf(err, "Invalid command line arguments server=‘%s’, args=%s", serverAddr, ctx.Args())
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globalMinioHost, globalMinioPort = mustSplitHostPort(globalMinioAddr)
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if runtime.GOOS == "darwin" {
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// On macOS, if a process already listens on LOCALIPADDR:PORT, net.Listen() falls back
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// to IPv6 address ie minio will start listening on IPv6 address whereas another
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// (non-)minio process is listening on IPv4 of given port.
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// To avoid this error sutiation we check for port availability only for macOS.
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fatalIf(checkPortAvailability(globalMinioPort), "Port %d already in use", globalMinioPort)
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}
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globalIsXL = (setupType == XLSetupType)
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globalIsDistXL = (setupType == DistXLSetupType)
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if globalIsDistXL {
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globalIsXL = true
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}
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}
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func serverHandleEnvVars() {
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// Handle common environment variables.
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handleCommonEnvVars()
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if serverRegion := os.Getenv("MINIO_REGION"); serverRegion != "" {
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// region Envs are set globally.
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globalIsEnvRegion = true
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globalServerRegion = serverRegion
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}
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}
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// serverMain handler called for 'minio server' command.
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func serverMain(ctx *cli.Context) {
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if (!ctx.IsSet("sets") && !ctx.Args().Present()) || ctx.Args().First() == "help" {
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cli.ShowCommandHelpAndExit(ctx, "server", 1)
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}
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// Get "json" flag from command line argument and
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// enable json and quite modes if jason flag is turned on.
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jsonFlag := ctx.IsSet("json") || ctx.GlobalIsSet("json")
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if jsonFlag {
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log.EnableJSON()
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}
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// Get quiet flag from command line argument.
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quietFlag := ctx.IsSet("quiet") || ctx.GlobalIsSet("quiet")
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if quietFlag {
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log.EnableQuiet()
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}
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// Handle all server command args.
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serverHandleCmdArgs(ctx)
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// Handle all server environment vars.
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serverHandleEnvVars()
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// Create certs path.
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fatalIf(createConfigDir(), "Unable to create configuration directories.")
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// Initialize server config.
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initConfig()
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// Init the error tracing module.
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errors.Init(GOPATH, "github.com/minio/minio")
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// Check and load SSL certificates.
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var err error
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globalPublicCerts, globalRootCAs, globalTLSCertificate, globalIsSSL, err = getSSLConfig()
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fatalIf(err, "Invalid SSL certificate file")
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// Is distributed setup, error out if no certificates are found for HTTPS endpoints.
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if globalIsDistXL && globalEndpoints.IsHTTPS() && !globalIsSSL {
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fatalIf(errInvalidArgument, "No certificates found for HTTPS endpoints (%s)", globalEndpoints)
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}
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if !quietFlag {
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// Check for new updates from dl.minio.io.
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mode := globalMinioModeFS
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if globalIsDistXL {
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mode = globalMinioModeDistXL
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} else if globalIsXL {
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mode = globalMinioModeXL
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}
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checkUpdate(mode)
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}
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// Set system resources to maximum.
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errorIf(setMaxResources(), "Unable to change resource limit")
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// Set nodes for dsync for distributed setup.
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if globalIsDistXL {
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globalDsync, err = dsync.New(newDsyncNodes(globalEndpoints))
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fatalIf(err, "Unable to initialize distributed locking on %s", globalEndpoints)
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}
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// Initialize name space lock.
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initNSLock(globalIsDistXL)
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// Init global heal state
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initAllHealState(globalIsXL)
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// Configure server.
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var handler http.Handler
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handler, err = configureServerHandler(globalEndpoints)
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fatalIf(err, "Unable to configure one of server's RPC services.")
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// Initialize notification system.
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globalNotificationSys, err = NewNotificationSys(globalServerConfig, globalEndpoints)
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fatalIf(err, "Unable to initialize notification system.")
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// Initialize Admin Peers inter-node communication only in distributed setup.
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initGlobalAdminPeers(globalEndpoints)
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globalHTTPServer = miniohttp.NewServer([]string{globalMinioAddr}, handler, globalTLSCertificate)
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globalHTTPServer.ReadTimeout = globalConnReadTimeout
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globalHTTPServer.WriteTimeout = globalConnWriteTimeout
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globalHTTPServer.UpdateBytesReadFunc = globalConnStats.incInputBytes
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globalHTTPServer.UpdateBytesWrittenFunc = globalConnStats.incOutputBytes
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globalHTTPServer.ErrorLogFunc = errorIf
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go func() {
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globalHTTPServerErrorCh <- globalHTTPServer.Start()
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}()
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signal.Notify(globalOSSignalCh, os.Interrupt, syscall.SIGTERM)
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newObject, err := newObjectLayer(globalEndpoints)
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if err != nil {
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errorIf(err, "Initializing object layer failed")
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err = globalHTTPServer.Shutdown()
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errorIf(err, "Unable to shutdown http server")
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os.Exit(1)
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}
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globalObjLayerMutex.Lock()
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globalObjectAPI = newObject
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globalObjLayerMutex.Unlock()
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// Prints the formatted startup message once object layer is initialized.
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apiEndpoints := getAPIEndpoints(globalMinioAddr)
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printStartupMessage(apiEndpoints)
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// Set uptime time after object layer has initialized.
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globalBootTime = UTCNow()
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handleSignals()
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}
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// Initialize object layer with the supplied disks, objectLayer is nil upon any error.
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func newObjectLayer(endpoints EndpointList) (newObject ObjectLayer, err error) {
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// For FS only, directly use the disk.
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isFS := len(endpoints) == 1
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if isFS {
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// Initialize new FS object layer.
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return NewFSObjectLayer(endpoints[0].Path)
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}
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format, err := waitForFormatXL(endpoints[0].IsLocal, endpoints, globalXLSetCount, globalXLSetDriveCount)
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if err != nil {
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return nil, err
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}
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return newXLSets(endpoints, format, len(format.XL.Sets), len(format.XL.Sets[0]))
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}
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