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555 lines
18 KiB
555 lines
18 KiB
package filer
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import (
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"fmt"
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"log"
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"math"
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"math/rand"
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"strconv"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
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)
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func TestCompactFileChunks(t *testing.T) {
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chunks := []*filer_pb.FileChunk{
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{Offset: 10, Size: 100, FileId: "abc", ModifiedTsNs: 50},
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{Offset: 100, Size: 100, FileId: "def", ModifiedTsNs: 100},
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{Offset: 200, Size: 100, FileId: "ghi", ModifiedTsNs: 200},
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{Offset: 110, Size: 200, FileId: "jkl", ModifiedTsNs: 300},
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}
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compacted, garbage := CompactFileChunks(nil, chunks)
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if len(compacted) != 3 {
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t.Fatalf("unexpected compacted: %d", len(compacted))
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}
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if len(garbage) != 1 {
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t.Fatalf("unexpected garbage: %d", len(garbage))
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}
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}
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func TestCompactFileChunks2(t *testing.T) {
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chunks := []*filer_pb.FileChunk{
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{Offset: 0, Size: 100, FileId: "abc", ModifiedTsNs: 50},
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{Offset: 100, Size: 100, FileId: "def", ModifiedTsNs: 100},
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{Offset: 200, Size: 100, FileId: "ghi", ModifiedTsNs: 200},
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{Offset: 0, Size: 100, FileId: "abcf", ModifiedTsNs: 300},
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{Offset: 50, Size: 100, FileId: "fhfh", ModifiedTsNs: 400},
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{Offset: 100, Size: 100, FileId: "yuyu", ModifiedTsNs: 500},
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}
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k := 3
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for n := 0; n < k; n++ {
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chunks = append(chunks, &filer_pb.FileChunk{
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Offset: int64(n * 100), Size: 100, FileId: fmt.Sprintf("fileId%d", n), ModifiedTsNs: int64(n),
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})
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chunks = append(chunks, &filer_pb.FileChunk{
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Offset: int64(n * 50), Size: 100, FileId: fmt.Sprintf("fileId%d", n+k), ModifiedTsNs: int64(n + k),
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})
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}
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compacted, garbage := CompactFileChunks(nil, chunks)
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if len(compacted) != 4 {
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t.Fatalf("unexpected compacted: %d", len(compacted))
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}
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if len(garbage) != 8 {
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t.Fatalf("unexpected garbage: %d", len(garbage))
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}
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}
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func TestRandomFileChunksCompact(t *testing.T) {
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data := make([]byte, 1024)
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var chunks []*filer_pb.FileChunk
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for i := 0; i < 15; i++ {
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start, stop := rand.Intn(len(data)), rand.Intn(len(data))
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if start > stop {
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start, stop = stop, start
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}
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if start+16 < stop {
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stop = start + 16
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}
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chunk := &filer_pb.FileChunk{
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FileId: strconv.Itoa(i),
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Offset: int64(start),
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Size: uint64(stop - start),
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ModifiedTsNs: int64(i),
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Fid: &filer_pb.FileId{FileKey: uint64(i)},
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}
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chunks = append(chunks, chunk)
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for x := start; x < stop; x++ {
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data[x] = byte(i)
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}
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}
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visibles, _ := NonOverlappingVisibleIntervals(nil, chunks, 0, math.MaxInt64)
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for visible := visibles.Front(); visible != nil; visible = visible.Next {
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v := visible.Value
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for x := v.start; x < v.stop; x++ {
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assert.Equal(t, strconv.Itoa(int(data[x])), v.fileId)
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}
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}
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}
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func TestIntervalMerging(t *testing.T) {
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testcases := []struct {
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Chunks []*filer_pb.FileChunk
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Expected []*VisibleInterval
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}{
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// case 0: normal
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 100, FileId: "abc", ModifiedTsNs: 123},
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{Offset: 100, Size: 100, FileId: "asdf", ModifiedTsNs: 134},
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{Offset: 200, Size: 100, FileId: "fsad", ModifiedTsNs: 353},
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},
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Expected: []*VisibleInterval{
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{start: 0, stop: 100, fileId: "abc"},
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{start: 100, stop: 200, fileId: "asdf"},
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{start: 200, stop: 300, fileId: "fsad"},
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},
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},
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// case 1: updates overwrite full chunks
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 100, FileId: "abc", ModifiedTsNs: 123},
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{Offset: 0, Size: 200, FileId: "asdf", ModifiedTsNs: 134},
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},
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Expected: []*VisibleInterval{
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{start: 0, stop: 200, fileId: "asdf"},
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},
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},
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// case 2: updates overwrite part of previous chunks
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 100, FileId: "a", ModifiedTsNs: 123},
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{Offset: 0, Size: 70, FileId: "b", ModifiedTsNs: 134},
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},
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Expected: []*VisibleInterval{
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{start: 0, stop: 70, fileId: "b"},
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{start: 70, stop: 100, fileId: "a", offsetInChunk: 70},
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},
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},
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// case 3: updates overwrite full chunks
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 100, FileId: "abc", ModifiedTsNs: 123},
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{Offset: 0, Size: 200, FileId: "asdf", ModifiedTsNs: 134},
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{Offset: 50, Size: 250, FileId: "xxxx", ModifiedTsNs: 154},
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},
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Expected: []*VisibleInterval{
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{start: 0, stop: 50, fileId: "asdf"},
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{start: 50, stop: 300, fileId: "xxxx"},
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},
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},
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// case 4: updates far away from prev chunks
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 100, FileId: "abc", ModifiedTsNs: 123},
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{Offset: 0, Size: 200, FileId: "asdf", ModifiedTsNs: 134},
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{Offset: 250, Size: 250, FileId: "xxxx", ModifiedTsNs: 154},
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},
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Expected: []*VisibleInterval{
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{start: 0, stop: 200, fileId: "asdf"},
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{start: 250, stop: 500, fileId: "xxxx"},
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},
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},
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// case 5: updates overwrite full chunks
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 100, FileId: "a", ModifiedTsNs: 123},
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{Offset: 0, Size: 200, FileId: "d", ModifiedTsNs: 184},
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{Offset: 70, Size: 150, FileId: "c", ModifiedTsNs: 143},
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{Offset: 80, Size: 100, FileId: "b", ModifiedTsNs: 134},
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},
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Expected: []*VisibleInterval{
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{start: 0, stop: 200, fileId: "d"},
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{start: 200, stop: 220, fileId: "c", offsetInChunk: 130},
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},
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},
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// case 6: same updates
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 100, FileId: "abc", Fid: &filer_pb.FileId{FileKey: 1}, ModifiedTsNs: 123},
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{Offset: 0, Size: 100, FileId: "axf", Fid: &filer_pb.FileId{FileKey: 2}, ModifiedTsNs: 124},
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{Offset: 0, Size: 100, FileId: "xyz", Fid: &filer_pb.FileId{FileKey: 3}, ModifiedTsNs: 125},
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},
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Expected: []*VisibleInterval{
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{start: 0, stop: 100, fileId: "xyz"},
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},
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},
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// case 7: real updates
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 2097152, FileId: "7,0294cbb9892b", ModifiedTsNs: 123},
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{Offset: 0, Size: 3145728, FileId: "3,029565bf3092", ModifiedTsNs: 130},
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{Offset: 2097152, Size: 3145728, FileId: "6,029632f47ae2", ModifiedTsNs: 140},
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{Offset: 5242880, Size: 3145728, FileId: "2,029734c5aa10", ModifiedTsNs: 150},
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{Offset: 8388608, Size: 3145728, FileId: "5,02982f80de50", ModifiedTsNs: 160},
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{Offset: 11534336, Size: 2842193, FileId: "7,0299ad723803", ModifiedTsNs: 170},
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},
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Expected: []*VisibleInterval{
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{start: 0, stop: 2097152, fileId: "3,029565bf3092"},
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{start: 2097152, stop: 5242880, fileId: "6,029632f47ae2"},
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{start: 5242880, stop: 8388608, fileId: "2,029734c5aa10"},
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{start: 8388608, stop: 11534336, fileId: "5,02982f80de50"},
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{start: 11534336, stop: 14376529, fileId: "7,0299ad723803"},
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},
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},
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// case 8: real bug
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 77824, FileId: "4,0b3df938e301", ModifiedTsNs: 123},
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{Offset: 471040, Size: 472225 - 471040, FileId: "6,0b3e0650019c", ModifiedTsNs: 130},
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{Offset: 77824, Size: 208896 - 77824, FileId: "4,0b3f0c7202f0", ModifiedTsNs: 140},
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{Offset: 208896, Size: 339968 - 208896, FileId: "2,0b4031a72689", ModifiedTsNs: 150},
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{Offset: 339968, Size: 471040 - 339968, FileId: "3,0b416a557362", ModifiedTsNs: 160},
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},
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Expected: []*VisibleInterval{
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{start: 0, stop: 77824, fileId: "4,0b3df938e301"},
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{start: 77824, stop: 208896, fileId: "4,0b3f0c7202f0"},
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{start: 208896, stop: 339968, fileId: "2,0b4031a72689"},
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{start: 339968, stop: 471040, fileId: "3,0b416a557362"},
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{start: 471040, stop: 472225, fileId: "6,0b3e0650019c"},
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},
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},
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}
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for i, testcase := range testcases {
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log.Printf("++++++++++ merged test case %d ++++++++++++++++++++", i)
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intervals, _ := NonOverlappingVisibleIntervals(nil, testcase.Chunks, 0, math.MaxInt64)
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x := -1
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for visible := intervals.Front(); visible != nil; visible = visible.Next {
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x++
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interval := visible.Value
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log.Printf("test case %d, interval start=%d, stop=%d, fileId=%s",
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i, interval.start, interval.stop, interval.fileId)
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}
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x = -1
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for visible := intervals.Front(); visible != nil; visible = visible.Next {
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x++
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interval := visible.Value
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if interval.start != testcase.Expected[x].start {
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t.Fatalf("failed on test case %d, interval %d, start %d, expect %d",
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i, x, interval.start, testcase.Expected[x].start)
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}
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if interval.stop != testcase.Expected[x].stop {
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t.Fatalf("failed on test case %d, interval %d, stop %d, expect %d",
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i, x, interval.stop, testcase.Expected[x].stop)
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}
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if interval.fileId != testcase.Expected[x].fileId {
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t.Fatalf("failed on test case %d, interval %d, chunkId %s, expect %s",
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i, x, interval.fileId, testcase.Expected[x].fileId)
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}
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if interval.offsetInChunk != testcase.Expected[x].offsetInChunk {
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t.Fatalf("failed on test case %d, interval %d, offsetInChunk %d, expect %d",
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i, x, interval.offsetInChunk, testcase.Expected[x].offsetInChunk)
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}
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}
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if intervals.Len() != len(testcase.Expected) {
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t.Fatalf("failed to compact test case %d, len %d expected %d", i, intervals.Len(), len(testcase.Expected))
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}
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}
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}
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func TestChunksReading(t *testing.T) {
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testcases := []struct {
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Chunks []*filer_pb.FileChunk
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Offset int64
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Size int64
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Expected []*ChunkView
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}{
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// case 0: normal
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 100, FileId: "abc", ModifiedTsNs: 123},
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{Offset: 100, Size: 100, FileId: "asdf", ModifiedTsNs: 134},
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{Offset: 200, Size: 100, FileId: "fsad", ModifiedTsNs: 353},
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},
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Offset: 0,
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Size: 250,
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Expected: []*ChunkView{
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{OffsetInChunk: 0, ViewSize: 100, FileId: "abc", ViewOffset: 0},
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{OffsetInChunk: 0, ViewSize: 100, FileId: "asdf", ViewOffset: 100},
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{OffsetInChunk: 0, ViewSize: 50, FileId: "fsad", ViewOffset: 200},
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},
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},
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// case 1: updates overwrite full chunks
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 100, FileId: "abc", ModifiedTsNs: 123},
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{Offset: 0, Size: 200, FileId: "asdf", ModifiedTsNs: 134},
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},
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Offset: 50,
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Size: 100,
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Expected: []*ChunkView{
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{OffsetInChunk: 50, ViewSize: 100, FileId: "asdf", ViewOffset: 50},
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},
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},
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// case 2: updates overwrite part of previous chunks
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 3, Size: 100, FileId: "a", ModifiedTsNs: 123},
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{Offset: 10, Size: 50, FileId: "b", ModifiedTsNs: 134},
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},
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Offset: 30,
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Size: 40,
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Expected: []*ChunkView{
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{OffsetInChunk: 20, ViewSize: 30, FileId: "b", ViewOffset: 30},
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{OffsetInChunk: 57, ViewSize: 10, FileId: "a", ViewOffset: 60},
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},
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},
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// case 3: updates overwrite full chunks
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 100, FileId: "abc", ModifiedTsNs: 123},
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{Offset: 0, Size: 200, FileId: "asdf", ModifiedTsNs: 134},
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{Offset: 50, Size: 250, FileId: "xxxx", ModifiedTsNs: 154},
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},
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Offset: 0,
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Size: 200,
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Expected: []*ChunkView{
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{OffsetInChunk: 0, ViewSize: 50, FileId: "asdf", ViewOffset: 0},
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{OffsetInChunk: 0, ViewSize: 150, FileId: "xxxx", ViewOffset: 50},
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},
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},
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// case 4: updates far away from prev chunks
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 100, FileId: "abc", ModifiedTsNs: 123},
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{Offset: 0, Size: 200, FileId: "asdf", ModifiedTsNs: 134},
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{Offset: 250, Size: 250, FileId: "xxxx", ModifiedTsNs: 154},
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},
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Offset: 0,
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Size: 400,
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Expected: []*ChunkView{
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{OffsetInChunk: 0, ViewSize: 200, FileId: "asdf", ViewOffset: 0},
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{OffsetInChunk: 0, ViewSize: 150, FileId: "xxxx", ViewOffset: 250},
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},
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},
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// case 5: updates overwrite full chunks
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 100, FileId: "a", ModifiedTsNs: 123},
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{Offset: 0, Size: 200, FileId: "c", ModifiedTsNs: 184},
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{Offset: 70, Size: 150, FileId: "b", ModifiedTsNs: 143},
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{Offset: 80, Size: 100, FileId: "xxxx", ModifiedTsNs: 134},
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},
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Offset: 0,
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Size: 220,
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Expected: []*ChunkView{
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{OffsetInChunk: 0, ViewSize: 200, FileId: "c", ViewOffset: 0},
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{OffsetInChunk: 130, ViewSize: 20, FileId: "b", ViewOffset: 200},
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},
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},
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// case 6: same updates
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 100, FileId: "abc", Fid: &filer_pb.FileId{FileKey: 1}, ModifiedTsNs: 123},
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{Offset: 0, Size: 100, FileId: "def", Fid: &filer_pb.FileId{FileKey: 2}, ModifiedTsNs: 124},
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{Offset: 0, Size: 100, FileId: "xyz", Fid: &filer_pb.FileId{FileKey: 3}, ModifiedTsNs: 125},
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},
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Offset: 0,
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Size: 100,
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Expected: []*ChunkView{
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{OffsetInChunk: 0, ViewSize: 100, FileId: "xyz", ViewOffset: 0},
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},
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},
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// case 7: edge cases
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 100, FileId: "abc", ModifiedTsNs: 123},
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{Offset: 100, Size: 100, FileId: "asdf", ModifiedTsNs: 134},
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{Offset: 200, Size: 100, FileId: "fsad", ModifiedTsNs: 353},
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},
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Offset: 0,
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Size: 200,
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Expected: []*ChunkView{
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{OffsetInChunk: 0, ViewSize: 100, FileId: "abc", ViewOffset: 0},
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{OffsetInChunk: 0, ViewSize: 100, FileId: "asdf", ViewOffset: 100},
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},
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},
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// case 8: edge cases
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 100, FileId: "abc", ModifiedTsNs: 123},
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{Offset: 90, Size: 200, FileId: "asdf", ModifiedTsNs: 134},
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{Offset: 190, Size: 300, FileId: "fsad", ModifiedTsNs: 353},
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},
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Offset: 0,
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Size: 300,
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Expected: []*ChunkView{
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{OffsetInChunk: 0, ViewSize: 90, FileId: "abc", ViewOffset: 0},
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{OffsetInChunk: 0, ViewSize: 100, FileId: "asdf", ViewOffset: 90},
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{OffsetInChunk: 0, ViewSize: 110, FileId: "fsad", ViewOffset: 190},
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},
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},
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// case 9: edge cases
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{
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Chunks: []*filer_pb.FileChunk{
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{Offset: 0, Size: 43175947, FileId: "2,111fc2cbfac1", ModifiedTsNs: 1},
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{Offset: 43175936, Size: 52981771 - 43175936, FileId: "2,112a36ea7f85", ModifiedTsNs: 2},
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{Offset: 52981760, Size: 72564747 - 52981760, FileId: "4,112d5f31c5e7", ModifiedTsNs: 3},
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{Offset: 72564736, Size: 133255179 - 72564736, FileId: "1,113245f0cdb6", ModifiedTsNs: 4},
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{Offset: 133255168, Size: 137269259 - 133255168, FileId: "3,1141a70733b5", ModifiedTsNs: 5},
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{Offset: 137269248, Size: 153578836 - 137269248, FileId: "1,114201d5bbdb", ModifiedTsNs: 6},
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},
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Offset: 0,
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Size: 153578836,
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Expected: []*ChunkView{
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{OffsetInChunk: 0, ViewSize: 43175936, FileId: "2,111fc2cbfac1", ViewOffset: 0},
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{OffsetInChunk: 0, ViewSize: 52981760 - 43175936, FileId: "2,112a36ea7f85", ViewOffset: 43175936},
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{OffsetInChunk: 0, ViewSize: 72564736 - 52981760, FileId: "4,112d5f31c5e7", ViewOffset: 52981760},
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{OffsetInChunk: 0, ViewSize: 133255168 - 72564736, FileId: "1,113245f0cdb6", ViewOffset: 72564736},
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{OffsetInChunk: 0, ViewSize: 137269248 - 133255168, FileId: "3,1141a70733b5", ViewOffset: 133255168},
|
|
{OffsetInChunk: 0, ViewSize: 153578836 - 137269248, FileId: "1,114201d5bbdb", ViewOffset: 137269248},
|
|
},
|
|
},
|
|
}
|
|
|
|
for i, testcase := range testcases {
|
|
if i != 2 {
|
|
// continue
|
|
}
|
|
log.Printf("++++++++++ read test case %d ++++++++++++++++++++", i)
|
|
chunks := ViewFromChunks(nil, testcase.Chunks, testcase.Offset, testcase.Size)
|
|
x := -1
|
|
for c := chunks.Front(); c != nil; c = c.Next {
|
|
x++
|
|
chunk := c.Value
|
|
log.Printf("read case %d, chunk %d, offset=%d, size=%d, fileId=%s",
|
|
i, x, chunk.OffsetInChunk, chunk.ViewSize, chunk.FileId)
|
|
if chunk.OffsetInChunk != testcase.Expected[x].OffsetInChunk {
|
|
t.Fatalf("failed on read case %d, chunk %s, Offset %d, expect %d",
|
|
i, chunk.FileId, chunk.OffsetInChunk, testcase.Expected[x].OffsetInChunk)
|
|
}
|
|
if chunk.ViewSize != testcase.Expected[x].ViewSize {
|
|
t.Fatalf("failed on read case %d, chunk %s, ViewSize %d, expect %d",
|
|
i, chunk.FileId, chunk.ViewSize, testcase.Expected[x].ViewSize)
|
|
}
|
|
if chunk.FileId != testcase.Expected[x].FileId {
|
|
t.Fatalf("failed on read case %d, chunk %d, FileId %s, expect %s",
|
|
i, x, chunk.FileId, testcase.Expected[x].FileId)
|
|
}
|
|
if chunk.ViewOffset != testcase.Expected[x].ViewOffset {
|
|
t.Fatalf("failed on read case %d, chunk %d, ViewOffset %d, expect %d",
|
|
i, x, chunk.ViewOffset, testcase.Expected[x].ViewOffset)
|
|
}
|
|
}
|
|
if chunks.Len() != len(testcase.Expected) {
|
|
t.Fatalf("failed to read test case %d, len %d expected %d", i, chunks.Len(), len(testcase.Expected))
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
func BenchmarkCompactFileChunks(b *testing.B) {
|
|
|
|
var chunks []*filer_pb.FileChunk
|
|
|
|
k := 1024
|
|
|
|
for n := 0; n < k; n++ {
|
|
chunks = append(chunks, &filer_pb.FileChunk{
|
|
Offset: int64(n * 100), Size: 100, FileId: fmt.Sprintf("fileId%d", n), ModifiedTsNs: int64(n),
|
|
})
|
|
chunks = append(chunks, &filer_pb.FileChunk{
|
|
Offset: int64(n * 50), Size: 100, FileId: fmt.Sprintf("fileId%d", n+k), ModifiedTsNs: int64(n + k),
|
|
})
|
|
}
|
|
|
|
for n := 0; n < b.N; n++ {
|
|
CompactFileChunks(nil, chunks)
|
|
}
|
|
}
|
|
|
|
func addVisibleInterval(visibles *IntervalList[*VisibleInterval], x *VisibleInterval) {
|
|
visibles.AppendInterval(&Interval[*VisibleInterval]{
|
|
StartOffset: x.start,
|
|
StopOffset: x.stop,
|
|
TsNs: x.modifiedTsNs,
|
|
Value: x,
|
|
})
|
|
}
|
|
|
|
func TestViewFromVisibleIntervals(t *testing.T) {
|
|
visibles := NewIntervalList[*VisibleInterval]()
|
|
addVisibleInterval(visibles, &VisibleInterval{
|
|
start: 0,
|
|
stop: 25,
|
|
fileId: "fid1",
|
|
})
|
|
addVisibleInterval(visibles, &VisibleInterval{
|
|
start: 4096,
|
|
stop: 8192,
|
|
fileId: "fid2",
|
|
})
|
|
addVisibleInterval(visibles, &VisibleInterval{
|
|
start: 16384,
|
|
stop: 18551,
|
|
fileId: "fid3",
|
|
})
|
|
|
|
views := ViewFromVisibleIntervals(visibles, 0, math.MaxInt32)
|
|
|
|
if views.Len() != visibles.Len() {
|
|
assert.Equal(t, visibles.Len(), views.Len(), "ViewFromVisibleIntervals error")
|
|
}
|
|
|
|
}
|
|
|
|
func TestViewFromVisibleIntervals2(t *testing.T) {
|
|
visibles := NewIntervalList[*VisibleInterval]()
|
|
addVisibleInterval(visibles, &VisibleInterval{
|
|
start: 344064,
|
|
stop: 348160,
|
|
fileId: "fid1",
|
|
})
|
|
addVisibleInterval(visibles, &VisibleInterval{
|
|
start: 348160,
|
|
stop: 356352,
|
|
fileId: "fid2",
|
|
})
|
|
|
|
views := ViewFromVisibleIntervals(visibles, 0, math.MaxInt32)
|
|
|
|
if views.Len() != visibles.Len() {
|
|
assert.Equal(t, visibles.Len(), views.Len(), "ViewFromVisibleIntervals error")
|
|
}
|
|
|
|
}
|
|
|
|
func TestViewFromVisibleIntervals3(t *testing.T) {
|
|
visibles := NewIntervalList[*VisibleInterval]()
|
|
addVisibleInterval(visibles, &VisibleInterval{
|
|
start: 1000,
|
|
stop: 2000,
|
|
fileId: "fid1",
|
|
})
|
|
addVisibleInterval(visibles, &VisibleInterval{
|
|
start: 3000,
|
|
stop: 4000,
|
|
fileId: "fid2",
|
|
})
|
|
|
|
views := ViewFromVisibleIntervals(visibles, 1700, 1500)
|
|
|
|
if views.Len() != visibles.Len() {
|
|
assert.Equal(t, visibles.Len(), views.Len(), "ViewFromVisibleIntervals error")
|
|
}
|
|
|
|
}
|