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debug: verify diff on latest objects on source and target buckets (#15069)
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Harshavardhana
GitHub
parent
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commit
d76c508566
8
.gitignore
vendored
8
.gitignore
vendored
@ -31,4 +31,10 @@ hash-set
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minio.RELEASE*
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mc
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nancy
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inspects/*
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inspects/*
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docs/debugging/s3-verify/s3-verify
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docs/debugging/xl-meta/xl-meta
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docs/debugging/s3-check-md5/s3-check-md5
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docs/debugging/hash-set/hash-set
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docs/debugging/healing-bin/healing-bin
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docs/debugging/inspect/inspect
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260
docs/debugging/s3-verify/main.go
Normal file
260
docs/debugging/s3-verify/main.go
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@ -0,0 +1,260 @@
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// Copyright (c) 2015-2022 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 main
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import (
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"bytes"
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"context"
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"crypto/sha256"
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"flag"
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"fmt"
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"io"
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"log"
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"net/url"
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"os"
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"strings"
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"sync"
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"github.com/minio/minio-go/v7"
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"github.com/minio/minio-go/v7/pkg/credentials"
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)
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var (
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sourceEndpoint, sourceAccessKey, sourceSecretKey string
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sourceBucket, sourcePrefix string
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targetEndpoint, targetAccessKey, targetSecretKey string
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targetBucket, targetPrefix string
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debug bool
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insecure bool
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)
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func main() {
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flag.StringVar(&sourceEndpoint, "source-endpoint", "https://play.min.io", "S3 endpoint URL")
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flag.StringVar(&sourceAccessKey, "source-access-key", "Q3AM3UQ867SPQQA43P2F", "S3 Access Key")
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flag.StringVar(&sourceSecretKey, "source-secret-key", "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG", "S3 Secret Key")
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flag.StringVar(&sourceBucket, "source-bucket", "", "Select a specific bucket")
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flag.StringVar(&sourcePrefix, "source-prefix", "", "Select a prefix")
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flag.StringVar(&targetEndpoint, "target-endpoint", "https://play.min.io", "S3 endpoint URL")
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flag.StringVar(&targetAccessKey, "target-access-key", "Q3AM3UQ867SPQQA43P2F", "S3 Access Key")
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flag.StringVar(&targetSecretKey, "target-secret-key", "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG", "S3 Secret Key")
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flag.StringVar(&targetBucket, "target-bucket", "", "Select a specific bucket")
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flag.StringVar(&targetPrefix, "target-prefix", "", "Select a prefix")
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flag.BoolVar(&debug, "debug", false, "Prints HTTP network calls to S3 endpoint")
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flag.BoolVar(&insecure, "insecure", false, "Disable TLS verification")
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flag.Parse()
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if sourceEndpoint == "" {
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log.Fatalln("source Endpoint is not provided")
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}
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if sourceAccessKey == "" {
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log.Fatalln("source Access key is not provided")
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}
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if sourceSecretKey == "" {
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log.Fatalln("source Secret key is not provided")
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}
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if sourceBucket == "" && sourcePrefix != "" {
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log.Fatalln("--source-prefix is specified without --source-bucket.")
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}
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if targetEndpoint == "" {
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log.Fatalln("target Endpoint is not provided")
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}
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if targetAccessKey == "" {
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log.Fatalln("target Access key is not provided")
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}
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if targetSecretKey == "" {
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log.Fatalln("target Secret key is not provided")
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}
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if targetBucket == "" && targetPrefix != "" {
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log.Fatalln("--target-prefix is specified without --target-bucket.")
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}
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u, err := url.Parse(sourceEndpoint)
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if err != nil {
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log.Fatalln(err)
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}
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secure := strings.EqualFold(u.Scheme, "https")
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transport, err := minio.DefaultTransport(secure)
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if err != nil {
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log.Fatalln(err)
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}
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if insecure {
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// skip TLS verification
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transport.TLSClientConfig.InsecureSkipVerify = true
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}
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sclnt, err := minio.New(u.Host, &minio.Options{
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Creds: credentials.NewStaticV4(sourceAccessKey, sourceSecretKey, ""),
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Secure: secure,
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Transport: transport,
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})
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if err != nil {
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log.Fatalln(err)
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}
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tclnt, err := minio.New(u.Host, &minio.Options{
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Creds: credentials.NewStaticV4(targetAccessKey, targetSecretKey, ""),
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Secure: secure,
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Transport: transport,
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})
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if err != nil {
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log.Fatalln(err)
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}
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if debug {
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sclnt.TraceOn(os.Stderr)
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tclnt.TraceOn(os.Stderr)
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}
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sopts := minio.ListObjectsOptions{
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Recursive: true,
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Prefix: sourcePrefix,
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WithMetadata: true,
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}
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topts := minio.ListObjectsOptions{
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Recursive: true,
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Prefix: targetPrefix,
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WithMetadata: true,
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}
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srcCh := sclnt.ListObjects(context.Background(), sourceBucket, sopts)
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tgtCh := tclnt.ListObjects(context.Background(), targetBucket, topts)
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srcCtnt, srcOk := <-srcCh
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tgtCtnt, tgtOk := <-tgtCh
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var srcEOF, tgtEOF bool
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for {
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srcEOF = !srcOk
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tgtEOF = !tgtOk
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// No objects from source AND target: Finish
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if srcEOF && tgtEOF {
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break
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}
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if !srcEOF && srcCtnt.Err != nil {
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log.Fatal(srcCtnt.Err)
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}
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if !tgtEOF && tgtCtnt.Err != nil {
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log.Fatal(tgtCtnt.Err)
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}
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// If source doesn't have objects anymore, comparison becomes obvious
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if srcEOF {
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fmt.Printf("only in target: %s\n", tgtCtnt.Key)
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tgtCtnt, tgtOk = <-tgtCh
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continue
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}
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// The same for target
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if tgtEOF {
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fmt.Printf("only in source: %s\n", srcCtnt.Key)
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srcCtnt, srcOk = <-srcCh
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continue
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}
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if srcCtnt.Key == tgtCtnt.Key {
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var allgood bool
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if srcCtnt.Size != tgtCtnt.Size {
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fmt.Printf("differ in size sourceSize: %d, targetSize: %d\n", srcCtnt.Size, tgtCtnt.Size)
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} else if srcCtnt.ContentType != tgtCtnt.ContentType {
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fmt.Printf("differ in contentType source: %s, target: %s\n", srcCtnt.ContentType, tgtCtnt.ContentType)
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} else {
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opts := minio.GetObjectOptions{}
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sobj, err := sclnt.GetObject(context.Background(), sourceBucket, srcCtnt.Key, opts)
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if err == nil {
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tobj, err := tclnt.GetObject(context.Background(), targetBucket, tgtCtnt.Key, opts)
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if err != nil {
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fmt.Printf("unreadable on target: %s (%s)\n", tgtCtnt.Key, err)
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} else {
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srcSha256 := sha256.New()
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tgtSha256 := sha256.New()
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var sourceFailed, targetFailed bool
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var wg sync.WaitGroup
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wg.Add(2)
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go func() {
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defer wg.Done()
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srcSize, err := io.Copy(srcSha256, sobj)
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if err != nil {
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fmt.Printf("unreadable on source: %s (%s)\n", srcCtnt.Key, err)
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sourceFailed = true
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return
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}
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if srcSize != srcCtnt.Size {
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fmt.Printf("unreadable on source - size differs upon read: %s\n", srcCtnt.Key)
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sourceFailed = true
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}
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}()
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go func() {
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defer wg.Done()
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tgtSize, err := io.Copy(tgtSha256, tobj)
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if err != nil {
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fmt.Printf("unreadable on target: %s (%s)\n", tgtCtnt.Key, err)
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targetFailed = true
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return
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}
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if tgtSize != tgtCtnt.Size {
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fmt.Printf("unreadable on target - size differs upon read: %s\n", tgtCtnt.Key)
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targetFailed = true
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}
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}()
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wg.Wait()
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if !sourceFailed && !targetFailed {
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ssum := srcSha256.Sum(nil)
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tsum := tgtSha256.Sum(nil)
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if !bytes.Equal(ssum, tsum) {
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fmt.Printf("sha256 sum mismatch: %s -> Expected(%x), Found(%x)\n", srcCtnt.Key, ssum, tsum)
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} else {
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allgood = true
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}
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}
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}
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} else {
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fmt.Printf("unreadable on source: %s (%s)\n", srcCtnt.Key, err)
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}
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}
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if allgood {
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fmt.Printf("all readable source and target: %s -> %s\n", srcCtnt.Key, tgtCtnt.Key)
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}
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srcCtnt, srcOk = <-srcCh
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tgtCtnt, tgtOk = <-tgtCh
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continue
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}
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fmt.Printf("only in target: %s (%s)\n", tgtCtnt.Key, tgtCtnt.VersionID)
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tgtCtnt, tgtOk = <-tgtCh
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}
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}
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