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path: root/weed/storage/erasure_coding/ec_test.go
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Diffstat (limited to 'weed/storage/erasure_coding/ec_test.go')
-rw-r--r--weed/storage/erasure_coding/ec_test.go89
1 files changed, 79 insertions, 10 deletions
diff --git a/weed/storage/erasure_coding/ec_test.go b/weed/storage/erasure_coding/ec_test.go
index b7c3ae0dd..8942bfbe5 100644
--- a/weed/storage/erasure_coding/ec_test.go
+++ b/weed/storage/erasure_coding/ec_test.go
@@ -1,9 +1,13 @@
package erasure_coding
import (
+ "fmt"
"os"
"testing"
+ "github.com/chrislusf/seaweedfs/weed/storage"
+ "github.com/chrislusf/seaweedfs/weed/storage/needle_map"
+ "github.com/chrislusf/seaweedfs/weed/storage/types"
"github.com/klauspost/reedsolomon"
)
@@ -11,8 +15,9 @@ func TestEncodingDecoding(t *testing.T) {
largeBlockSize := int64(10000)
smallBlockSize := int64(100)
bufferSize := 50
+ baseFileName := "1"
- file, err := os.OpenFile("1.dat", os.O_RDONLY, 0)
+ file, err := os.OpenFile(baseFileName+".dat", os.O_RDONLY, 0)
if err != nil {
t.Logf("failed to open dat file: %v", err)
}
@@ -22,31 +27,95 @@ func TestEncodingDecoding(t *testing.T) {
t.Logf("failed to stat dat file: %v", err)
}
- remainingSize := fi.Size()
- var processedSize int64
+ err = encodeDatFile(fi.Size(), err, baseFileName, bufferSize, largeBlockSize, file, smallBlockSize)
+ if err != nil {
+ t.Logf("failed to stat dat file: %v", err)
+ }
+ file.Close()
- enc, err := reedsolomon.New(DataShardsCount, ParityShardsCount)
+ err = writeSortedEcxFiles(baseFileName)
if err != nil {
- t.Logf("failed to create encoder: %v", err)
+ t.Logf("writeSortedEcxFiles: %v", err)
}
- buffers := make([][]byte, DataShardsCount+ParityShardsCount)
+ err = validateFiles(baseFileName)
+ if err != nil {
+ t.Logf("writeSortedEcxFiles: %v", err)
+ }
+}
+
+func encodeDatFile(remainingSize int64, err error, baseFileName string, bufferSize int, largeBlockSize int64, file *os.File, smallBlockSize int64) error {
+ var processedSize int64
+ enc, err := reedsolomon.New(DataShardsCount, ParityShardsCount)
+ if err != nil {
+ return fmt.Errorf("failed to create encoder: %v", err)
+ }
+ buffers := make([][]byte, DataShardsCount+ParityShardsCount)
+ outputs, err := openEcFiles(baseFileName)
+ defer closeEcFiles(outputs)
+ if err != nil {
+ return fmt.Errorf("failed to open dat file: %v", err)
+ }
for i, _ := range buffers {
buffers[i] = make([]byte, bufferSize)
}
-
for remainingSize > largeBlockSize*DataShardsCount {
- encodeData(file, enc, processedSize, largeBlockSize, buffers)
+ err = encodeData(file, enc, processedSize, largeBlockSize, buffers, outputs)
+ if err != nil {
+ return fmt.Errorf("failed to encode large chunk data: %v", err)
+ }
remainingSize -= largeBlockSize * DataShardsCount
processedSize += largeBlockSize * DataShardsCount
}
-
for remainingSize > 0 {
- encodeData(file, enc, processedSize, smallBlockSize, buffers)
+ encodeData(file, enc, processedSize, smallBlockSize, buffers, outputs)
+ if err != nil {
+ return fmt.Errorf("failed to encode small chunk data: %v", err)
+ }
remainingSize -= smallBlockSize * DataShardsCount
processedSize += smallBlockSize * DataShardsCount
}
+ return nil
+}
+
+func writeSortedEcxFiles(baseFileName string) (e error) {
+
+ var indexFile *os.File
+ if indexFile, e = os.OpenFile(baseFileName+".idx", os.O_RDONLY, 0644); e != nil {
+ return fmt.Errorf("cannot read Volume Index %s.idx: %v", baseFileName, e)
+ }
+
+ cm := needle_map.NewCompactMap()
+ storage.WalkIndexFile(indexFile, func(key types.NeedleId, offset types.Offset, size uint32) error {
+ if !offset.IsZero() && size != types.TombstoneFileSize {
+ cm.Set(key, offset, size)
+ } else {
+ cm.Delete(key)
+ }
+ return nil
+ })
+
+ ecxFile, err := os.OpenFile(baseFileName+".ecx", os.O_TRUNC|os.O_CREATE|os.O_WRONLY, 0644)
+ if err != nil {
+ return fmt.Errorf("failed to open dat file: %v", err)
+ }
+ defer ecxFile.Close()
+
+ err = cm.AscendingVisit(func(value needle_map.NeedleValue) error {
+ bytes := value.ToBytes()
+ _, writeErr := ecxFile.Write(bytes)
+ return writeErr
+ })
+
+ if err != nil {
+ return fmt.Errorf("failed to open dat file: %v", err)
+ }
+ return nil
}
+func validateFiles(baseFileName string) error {
+ return nil
+
+}