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373 lines
10 KiB
Go
373 lines
10 KiB
Go
// Copyright (c) 2015-2021 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 cmd
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import (
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"bytes"
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"testing"
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"time"
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"github.com/google/uuid"
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"github.com/minio/minio/internal/bucket/lifecycle"
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xhttp "github.com/minio/minio/internal/http"
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)
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func TestXLV2FormatData(t *testing.T) {
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failOnErr := func(err error) {
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t.Helper()
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if err != nil {
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t.Fatal(err)
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}
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}
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data := []byte("some object data")
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data2 := []byte("some other object data")
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xl := xlMetaV2{}
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fi := FileInfo{
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Volume: "volume",
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Name: "object-name",
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VersionID: "756100c6-b393-4981-928a-d49bbc164741",
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IsLatest: true,
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Deleted: false,
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TransitionStatus: "",
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DataDir: "bffea160-ca7f-465f-98bc-9b4f1c3ba1ef",
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XLV1: false,
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ModTime: time.Now(),
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Size: 0,
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Mode: 0,
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Metadata: nil,
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Parts: nil,
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Erasure: ErasureInfo{
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Algorithm: ReedSolomon.String(),
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DataBlocks: 4,
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ParityBlocks: 2,
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BlockSize: 10000,
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Index: 1,
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Distribution: []int{1, 2, 3, 4, 5, 6, 7, 8},
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Checksums: []ChecksumInfo{{
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PartNumber: 1,
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Algorithm: HighwayHash256S,
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Hash: nil,
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}},
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},
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MarkDeleted: false,
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DeleteMarkerReplicationStatus: "",
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VersionPurgeStatus: "",
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Data: data,
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NumVersions: 1,
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SuccessorModTime: time.Time{},
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}
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failOnErr(xl.AddVersion(fi))
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fi.VersionID = mustGetUUID()
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fi.DataDir = mustGetUUID()
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fi.Data = data2
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failOnErr(xl.AddVersion(fi))
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serialized, err := xl.AppendTo(nil)
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failOnErr(err)
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// Roundtrip data
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var xl2 xlMetaV2
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failOnErr(xl2.Load(serialized))
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// We should have one data entry
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list, err := xl2.data.list()
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failOnErr(err)
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if len(list) != 2 {
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t.Fatalf("want 1 entry, got %d", len(list))
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}
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if !bytes.Equal(xl2.data.find("756100c6-b393-4981-928a-d49bbc164741"), data) {
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t.Fatal("Find data returned", xl2.data.find("756100c6-b393-4981-928a-d49bbc164741"))
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}
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if !bytes.Equal(xl2.data.find(fi.VersionID), data2) {
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t.Fatal("Find data returned", xl2.data.find(fi.VersionID))
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}
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// Remove entry
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xl2.data.remove(fi.VersionID)
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failOnErr(xl2.data.validate())
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if xl2.data.find(fi.VersionID) != nil {
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t.Fatal("Data was not removed:", xl2.data.find(fi.VersionID))
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}
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if xl2.data.entries() != 1 {
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t.Fatal("want 1 entry, got", xl2.data.entries())
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}
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// Re-add
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xl2.data.replace(fi.VersionID, fi.Data)
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failOnErr(xl2.data.validate())
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if xl2.data.entries() != 2 {
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t.Fatal("want 2 entries, got", xl2.data.entries())
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}
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// Replace entry
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xl2.data.replace("756100c6-b393-4981-928a-d49bbc164741", data2)
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failOnErr(xl2.data.validate())
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if xl2.data.entries() != 2 {
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t.Fatal("want 2 entries, got", xl2.data.entries())
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}
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if !bytes.Equal(xl2.data.find("756100c6-b393-4981-928a-d49bbc164741"), data2) {
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t.Fatal("Find data returned", xl2.data.find("756100c6-b393-4981-928a-d49bbc164741"))
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}
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if !xl2.data.rename("756100c6-b393-4981-928a-d49bbc164741", "new-key") {
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t.Fatal("old key was not found")
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}
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failOnErr(xl2.data.validate())
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if !bytes.Equal(xl2.data.find("new-key"), data2) {
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t.Fatal("Find data returned", xl2.data.find("756100c6-b393-4981-928a-d49bbc164741"))
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}
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if xl2.data.entries() != 2 {
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t.Fatal("want 2 entries, got", xl2.data.entries())
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}
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if !bytes.Equal(xl2.data.find(fi.VersionID), data2) {
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t.Fatal("Find data returned", xl2.data.find(fi.DataDir))
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}
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// Test trimmed
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xl2 = xlMetaV2{}
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trimmed := xlMetaV2TrimData(serialized)
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failOnErr(xl2.Load(trimmed))
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if len(xl2.data) != 0 {
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t.Fatal("data, was not trimmed, bytes left:", len(xl2.data))
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}
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// Corrupt metadata, last 5 bytes is the checksum, so go a bit further back.
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trimmed[len(trimmed)-10] += 10
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if err := xl2.Load(trimmed); err == nil {
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t.Fatal("metadata corruption not detected")
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}
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}
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// TestUsesDataDir tests xlMetaV2.UsesDataDir
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func TestUsesDataDir(t *testing.T) {
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vID := uuid.New()
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dataDir := uuid.New()
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transitioned := make(map[string][]byte)
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transitioned[ReservedMetadataPrefixLower+TransitionStatus] = []byte(lifecycle.TransitionComplete)
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toBeRestored := make(map[string]string)
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toBeRestored[xhttp.AmzRestore] = ongoingRestoreObj().String()
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restored := make(map[string]string)
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restored[xhttp.AmzRestore] = completedRestoreObj(time.Now().UTC().Add(time.Hour)).String()
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restoredExpired := make(map[string]string)
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restoredExpired[xhttp.AmzRestore] = completedRestoreObj(time.Now().UTC().Add(-time.Hour)).String()
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testCases := []struct {
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xlmeta xlMetaV2Object
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uses bool
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}{
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{ // transitioned object version
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xlmeta: xlMetaV2Object{
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VersionID: vID,
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DataDir: dataDir,
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MetaSys: transitioned,
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},
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uses: false,
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},
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{ // to be restored (requires object version to be transitioned)
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xlmeta: xlMetaV2Object{
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VersionID: vID,
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DataDir: dataDir,
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MetaSys: transitioned,
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MetaUser: toBeRestored,
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},
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uses: false,
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},
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{ // restored object version (requires object version to be transitioned)
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xlmeta: xlMetaV2Object{
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VersionID: vID,
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DataDir: dataDir,
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MetaSys: transitioned,
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MetaUser: restored,
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},
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uses: true,
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},
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{ // restored object version expired an hour back (requires object version to be transitioned)
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xlmeta: xlMetaV2Object{
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VersionID: vID,
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DataDir: dataDir,
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MetaSys: transitioned,
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MetaUser: restoredExpired,
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},
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uses: false,
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},
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{ // object version with no ILM applied
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xlmeta: xlMetaV2Object{
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VersionID: vID,
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DataDir: dataDir,
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},
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uses: true,
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},
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}
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for i, tc := range testCases {
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if got := tc.xlmeta.UsesDataDir(); got != tc.uses {
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t.Fatalf("Test %d: Expected %v but got %v for %v", i+1, tc.uses, got, tc.xlmeta)
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}
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}
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}
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func TestDeleteVersionWithSharedDataDir(t *testing.T) {
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failOnErr := func(i int, err error) {
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t.Helper()
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if err != nil {
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t.Fatalf("Test %d: failed with %v", i, err)
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}
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}
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data := []byte("some object data")
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data2 := []byte("some other object data")
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xl := xlMetaV2{}
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fi := FileInfo{
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Volume: "volume",
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Name: "object-name",
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VersionID: "756100c6-b393-4981-928a-d49bbc164741",
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IsLatest: true,
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Deleted: false,
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TransitionStatus: "",
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DataDir: "bffea160-ca7f-465f-98bc-9b4f1c3ba1ef",
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XLV1: false,
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ModTime: time.Now(),
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Size: 0,
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Mode: 0,
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Metadata: nil,
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Parts: nil,
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Erasure: ErasureInfo{
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Algorithm: ReedSolomon.String(),
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DataBlocks: 4,
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ParityBlocks: 2,
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BlockSize: 10000,
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Index: 1,
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Distribution: []int{1, 2, 3, 4, 5, 6, 7, 8},
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Checksums: []ChecksumInfo{{
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PartNumber: 1,
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Algorithm: HighwayHash256S,
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Hash: nil,
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}},
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},
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MarkDeleted: false,
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DeleteMarkerReplicationStatus: "",
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VersionPurgeStatus: "",
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Data: data,
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NumVersions: 1,
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SuccessorModTime: time.Time{},
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}
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d0, d1, d2 := mustGetUUID(), mustGetUUID(), mustGetUUID()
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testCases := []struct {
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versionID string
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dataDir string
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data []byte
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shares int
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transitionStatus string
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restoreObjStatus string
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expireRestored bool
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expectedDataDir string
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}{
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{ // object versions with inlined data don't count towards shared data directory
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versionID: mustGetUUID(),
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dataDir: d0,
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data: data,
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shares: 0,
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},
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{ // object versions with inlined data don't count towards shared data directory
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versionID: mustGetUUID(),
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dataDir: d1,
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data: data2,
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shares: 0,
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},
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{ // transitioned object version don't count towards shared data directory
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versionID: mustGetUUID(),
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dataDir: d2,
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shares: 3,
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transitionStatus: lifecycle.TransitionComplete,
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},
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{ // transitioned object version with an ongoing restore-object request.
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versionID: mustGetUUID(),
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dataDir: d2,
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shares: 3,
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transitionStatus: lifecycle.TransitionComplete,
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restoreObjStatus: ongoingRestoreObj().String(),
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},
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// The following versions are on-disk.
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{ // restored object version expiring 10 hours from now.
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versionID: mustGetUUID(),
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dataDir: d2,
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shares: 2,
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transitionStatus: lifecycle.TransitionComplete,
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restoreObjStatus: completedRestoreObj(time.Now().Add(10 * time.Hour)).String(),
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expireRestored: true,
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},
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{
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versionID: mustGetUUID(),
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dataDir: d2,
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shares: 2,
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},
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{
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versionID: mustGetUUID(),
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dataDir: d2,
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shares: 2,
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expectedDataDir: d2,
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},
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}
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var fileInfos []FileInfo
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for i, tc := range testCases {
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fi := fi
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fi.VersionID = tc.versionID
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fi.DataDir = tc.dataDir
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fi.Data = tc.data
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if tc.data == nil {
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fi.Size = 42 // to prevent inlining of data
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}
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if tc.restoreObjStatus != "" {
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fi.Metadata = map[string]string{
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xhttp.AmzRestore: tc.restoreObjStatus,
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}
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}
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fi.TransitionStatus = tc.transitionStatus
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failOnErr(i+1, xl.AddVersion(fi))
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fi.ExpireRestored = tc.expireRestored
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fileInfos = append(fileInfos, fi)
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}
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for i, tc := range testCases {
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version := xl.Versions[i]
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if actual := xl.SharedDataDirCount(version.ObjectV2.VersionID, version.ObjectV2.DataDir); actual != tc.shares {
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t.Fatalf("Test %d: For %#v, expected sharers of data directory %d got %d", i+1, version.ObjectV2, tc.shares, actual)
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}
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}
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// Deleting fileInfos[4].VersionID, fileInfos[5].VersionID should return empty data dir; there are other object version sharing the data dir.
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// Subsequently deleting fileInfos[6].versionID should return fileInfos[6].dataDir since there are no other object versions sharing this data dir.
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count := len(testCases)
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for i := 4; i < len(testCases); i++ {
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tc := testCases[i]
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dataDir, _, err := xl.DeleteVersion(fileInfos[i])
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failOnErr(count+1, err)
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if dataDir != tc.expectedDataDir {
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t.Fatalf("Expected %s but got %s", tc.expectedDataDir, dataDir)
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}
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count++
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}
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}
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