[#231] Fix get latest version node

Signed-off-by: Roman Loginov <r.loginov@yadro.com>
This commit is contained in:
Roman Loginov 2023-10-06 11:00:16 +03:00
parent 51e591877b
commit 670576248a
3 changed files with 160 additions and 3 deletions

View file

@ -30,6 +30,7 @@ This document outlines major changes between releases.
- Implement chunk uploading (#106)
- Add new `kludge.bypass_content_encoding_check_in_chunks` config param (#146)
- Add new `frostfs.client_cut` config param (#192)
- Add selection of the node of the latest version of the object (#231)
### Changed
- Update prometheus to v1.15.0 (#94)

View file

@ -586,7 +586,7 @@ func (c *Tree) GetLatestVersion(ctx context.Context, bktInfo *data.BucketInfo, o
TreeID: versionTree,
Path: path,
Meta: meta,
LatestOnly: true,
LatestOnly: false,
AllAttrs: false,
}
nodes, err := c.service.GetNodes(ctx, p)
@ -594,11 +594,43 @@ func (c *Tree) GetLatestVersion(ctx context.Context, bktInfo *data.BucketInfo, o
return nil, err
}
if len(nodes) == 0 {
latestNode, err := getLatestNode(nodes)
if err != nil {
return nil, err
}
return newNodeVersion(objectName, latestNode)
}
func getLatestNode(nodes []NodeResponse) (NodeResponse, error) {
var (
maxCreationTime uint64
targetIndexNode = -1
)
for i, node := range nodes {
currentCreationTime := node.GetTimestamp()
if checkExistOID(node.GetMeta()) && currentCreationTime > maxCreationTime {
maxCreationTime = currentCreationTime
targetIndexNode = i
}
}
if targetIndexNode == -1 {
return nil, layer.ErrNodeNotFound
}
return newNodeVersion(objectName, nodes[0])
return nodes[targetIndexNode], nil
}
func checkExistOID(meta []Meta) bool {
for _, kv := range meta {
if kv.GetKey() == "OID" {
return true
}
}
return false
}
// pathFromName splits name by '/'.

View file

@ -168,3 +168,127 @@ func TestTreeServiceAddVersion(t *testing.T) {
require.Len(t, versions, 1)
require.Equal(t, storedNode, versions[0])
}
func TestGetLatestNode(t *testing.T) {
for _, tc := range []struct {
name string
nodes []NodeResponse
exceptedNodeID uint64
error bool
}{
{
name: "empty",
nodes: []NodeResponse{},
error: true,
},
{
name: "one node of the object version",
nodes: []NodeResponse{
nodeResponse{
nodeID: 1,
parentID: 0,
timestamp: 1,
meta: []nodeMeta{
{
key: oidKV,
value: []byte(oidtest.ID().String()),
},
},
},
},
exceptedNodeID: 1,
},
{
name: "one node of the object version and one node of the secondary object",
nodes: []NodeResponse{
nodeResponse{
nodeID: 2,
parentID: 0,
timestamp: 3,
meta: []nodeMeta{},
},
nodeResponse{
nodeID: 1,
parentID: 0,
timestamp: 1,
meta: []nodeMeta{
{
key: oidKV,
value: []byte(oidtest.ID().String()),
},
},
},
},
exceptedNodeID: 1,
},
{
name: "all nodes represent a secondary object",
nodes: []NodeResponse{
nodeResponse{
nodeID: 2,
parentID: 0,
timestamp: 3,
meta: []nodeMeta{},
},
nodeResponse{
nodeID: 4,
parentID: 0,
timestamp: 5,
meta: []nodeMeta{},
},
},
error: true,
},
{
name: "several nodes of different types and with different timestamp",
nodes: []NodeResponse{
nodeResponse{
nodeID: 1,
parentID: 0,
timestamp: 1,
meta: []nodeMeta{
{
key: oidKV,
value: []byte(oidtest.ID().String()),
},
},
},
nodeResponse{
nodeID: 3,
parentID: 0,
timestamp: 3,
meta: []nodeMeta{},
},
nodeResponse{
nodeID: 4,
parentID: 0,
timestamp: 4,
meta: []nodeMeta{
{
key: oidKV,
value: []byte(oidtest.ID().String()),
},
},
},
nodeResponse{
nodeID: 6,
parentID: 0,
timestamp: 6,
meta: []nodeMeta{},
},
},
exceptedNodeID: 4,
},
} {
t.Run(tc.name, func(t *testing.T) {
actualNode, err := getLatestNode(tc.nodes)
if tc.error {
require.Error(t, err)
return
}
require.NoError(t, err)
require.Equal(t, tc.exceptedNodeID, actualNode.GetNodeID())
})
}
}