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Simplify data verification with HashReader. (#5071)

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Verify() was being called by caller after the data
has been successfully read after io.EOF. This disconnection
opens a race under concurrent access to such an object.
Verification is not necessary outside of Read() call,
we can simply just do checksum verification right inside
Read() call at io.EOF.

This approach simplifies the usage.
This commit is contained in:
Harshavardhana
2017-10-21 22:30:34 -07:00
committed by Nitish Tiwari
parent 65a817fe8c
commit 1d8a8c63db
51 changed files with 749 additions and 499 deletions
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18
cmd/xl-v1-object_test.go
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@@ -53,12 +53,12 @@ func TestRepeatPutObjectPart(t *testing.T) {
}
fiveMBBytes := bytes.Repeat([]byte("a"), 5*humanize.MiByte)
md5Hex := getMD5Hash(fiveMBBytes)
_, err = objLayer.PutObjectPart("bucket1", "mpartObj1", uploadID, 1, NewHashReader(bytes.NewReader(fiveMBBytes), 5*humanize.MiByte, md5Hex, ""))
_, err = objLayer.PutObjectPart("bucket1", "mpartObj1", uploadID, 1, mustGetHashReader(t, bytes.NewReader(fiveMBBytes), 5*humanize.MiByte, md5Hex, ""))
if err != nil {
t.Fatal(err)
}
// PutObjectPart should succeed even if part already exists. ref: https://github.com/minio/minio/issues/1930
_, err = objLayer.PutObjectPart("bucket1", "mpartObj1", uploadID, 1, NewHashReader(bytes.NewReader(fiveMBBytes), 5*humanize.MiByte, md5Hex, ""))
_, err = objLayer.PutObjectPart("bucket1", "mpartObj1", uploadID, 1, mustGetHashReader(t, bytes.NewReader(fiveMBBytes), 5*humanize.MiByte, md5Hex, ""))
if err != nil {
t.Fatal(err)
}
@@ -92,7 +92,7 @@ func TestXLDeleteObjectBasic(t *testing.T) {
}
// Create object "obj" under bucket "bucket" for Test 7 to pass
_, err = xl.PutObject("bucket", "obj", NewHashReader(bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), nil)
_, err = xl.PutObject("bucket", "obj", mustGetHashReader(t, bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), nil)
if err != nil {
t.Fatalf("XL Object upload failed: <ERROR> %s", err)
}
@@ -128,7 +128,7 @@ func TestXLDeleteObjectDiskNotFound(t *testing.T) {
bucket := "bucket"
object := "object"
// Create object "obj" under bucket "bucket".
_, err = obj.PutObject(bucket, object, NewHashReader(bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), nil)
_, err = obj.PutObject(bucket, object, mustGetHashReader(t, bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), nil)
if err != nil {
t.Fatal(err)
}
@@ -143,7 +143,7 @@ func TestXLDeleteObjectDiskNotFound(t *testing.T) {
}
// Create "obj" under "bucket".
_, err = obj.PutObject(bucket, object, NewHashReader(bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), nil)
_, err = obj.PutObject(bucket, object, mustGetHashReader(t, bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), nil)
if err != nil {
t.Fatal(err)
}
@@ -178,7 +178,7 @@ func TestGetObjectNoQuorum(t *testing.T) {
bucket := "bucket"
object := "object"
// Create "object" under "bucket".
_, err = obj.PutObject(bucket, object, NewHashReader(bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), nil)
_, err = obj.PutObject(bucket, object, mustGetHashReader(t, bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), nil)
if err != nil {
t.Fatal(err)
}
@@ -230,7 +230,7 @@ func TestPutObjectNoQuorum(t *testing.T) {
bucket := "bucket"
object := "object"
// Create "object" under "bucket".
_, err = obj.PutObject(bucket, object, NewHashReader(bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), nil)
_, err = obj.PutObject(bucket, object, mustGetHashReader(t, bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), nil)
if err != nil {
t.Fatal(err)
}
@@ -253,7 +253,7 @@ func TestPutObjectNoQuorum(t *testing.T) {
}
}
// Upload new content to same object "object"
_, err = obj.PutObject(bucket, object, NewHashReader(bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), nil)
_, err = obj.PutObject(bucket, object, mustGetHashReader(t, bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), nil)
err = errorCause(err)
if err != toObjectErr(errXLWriteQuorum, bucket, object) {
t.Errorf("Expected putObject to fail with %v, but failed with %v", toObjectErr(errXLWriteQuorum, bucket, object), err)
@@ -294,7 +294,7 @@ func TestHealing(t *testing.T) {
t.Fatal(err)
}
_, err = obj.PutObject(bucket, object, NewHashReader(bytes.NewReader(data), length, "", ""), nil)
_, err = obj.PutObject(bucket, object, mustGetHashReader(t, bytes.NewReader(data), length, "", ""), nil)
if err != nil {
t.Fatal(err)
}