gsh-digital-services/seaweedFS
5
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Account for replication placement settings when balancing EC shards within the same rack. (#6317)

Browse Source 
* Account for replication placement settings when balancing EC shards within racks.

* Update help contents for `ec.balance`.

* Add a few more representative test cases for `pickEcNodeToBalanceShardsInto()`.
This commit is contained in:
Lisandro Pin
2024-12-04 19:47:51 +01:00
committed by GitHub
parent 351efa134d
commit edef485333
3 changed files with 57 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

72
weed/shell/command_ec_common_test.go
View File

@@ -193,25 +193,27 @@ func TestPickRackToBalanceShardsInto(t *testing.T) {
}
func TestPickEcNodeToBalanceShardsInto(t *testing.T) {
testCases := []struct {
topology *master_pb.TopologyInfo
nodeId string
vid string
wantOneOf []string
wantErr string
topology *master_pb.TopologyInfo
nodeId string
vid string
replicaPlacement string
wantOneOf []string
wantErr string
}{
{topologyEc, "", "", nil, "INTERNAL: missing source nodes"},
{topologyEc, "idontexist", "12737", nil, "INTERNAL: missing source nodes"},
{topologyEc, "", "", "", nil, "INTERNAL: missing source nodes"},
{topologyEc, "idontexist", "12737", "", nil, "INTERNAL: missing source nodes"},
// Non-EC nodes. We don't care about these, but the function should return all available target nodes as a safeguard.
{
topologyEc, "172.19.0.10:8702", "6225", []string{
topologyEc, "172.19.0.10:8702", "6225", "123",
[]string{
"172.19.0.13:8701", "172.19.0.14:8711", "172.19.0.16:8704", "172.19.0.17:8703",
"172.19.0.19:8700", "172.19.0.20:8706", "172.19.0.21:8710", "172.19.0.3:8708",
"172.19.0.4:8707", "172.19.0.5:8705", "172.19.0.6:8713", "172.19.0.8:8709",
"172.19.0.9:8712"},
"",
},
{
topologyEc, "172.19.0.8:8709", "6226", []string{
}, {
topologyEc, "172.19.0.8:8709", "6226", "123",
[]string{
"172.19.0.10:8702", "172.19.0.13:8701", "172.19.0.14:8711", "172.19.0.16:8704",
"172.19.0.17:8703", "172.19.0.19:8700", "172.19.0.20:8706", "172.19.0.21:8710",
"172.19.0.3:8708", "172.19.0.4:8707", "172.19.0.5:8705", "172.19.0.6:8713",
@@ -219,23 +221,45 @@ func TestPickEcNodeToBalanceShardsInto(t *testing.T) {
"",
},
// EC volumes.
{topologyEc, "172.19.0.10:8702", "14322", []string{
"172.19.0.14:8711", "172.19.0.5:8705", "172.19.0.6:8713"},
""},
{topologyEc, "172.19.0.13:8701", "10457", []string{
"172.19.0.10:8702", "172.19.0.6:8713"},
""},
{topologyEc, "172.19.0.17:8703", "12737", []string{
"172.19.0.13:8701"},
""},
{topologyEc, "172.19.0.20:8706", "14322", []string{
"172.19.0.14:8711", "172.19.0.5:8705", "172.19.0.6:8713"},
""},
{
topologyEc, "172.19.0.10:8702", "14322", "",
nil, "Skipped 172.19.0.13:8701 because shards 1 >= replica placement limit for the rack (0)",
}, {
topologyEc, "172.19.0.10:8702", "14322", "210",
nil, "Skipped 172.19.0.5:8705 because shards 0 >= replica placement limit for the rack (0)",
}, {
topologyEc, "172.19.0.10:8702", "9577", "110",
nil, "Skipped 172.19.0.4:8707 because shards 1 >= replica placement limit for the rack (0)",
}, {
topologyEc, "172.19.0.10:8702", "9577", "111",
nil, "Skipped 172.19.0.4:8707 because shards 1 >= replica placement limit for the rack (1)",
}, {
topologyEc, "172.19.0.10:8702", "9577", "113",
[]string{
"172.19.0.13:8701", "172.19.0.14:8711", "172.19.0.16:8704", "172.19.0.17:8703",
"172.19.0.19:8700", "172.19.0.20:8706", "172.19.0.21:8710", "172.19.0.3:8708",
"172.19.0.4:8707", "172.19.0.5:8705", "172.19.0.6:8713", "172.19.0.8:8709",
"172.19.0.9:8712"},
"",
}, {
topologyEc, "172.19.0.10:8702", "14322", "222",
[]string{"172.19.0.14:8711", "172.19.0.5:8705", "172.19.0.6:8713"}, "",
}, {
topologyEc, "172.19.0.13:8701", "10457", "222",
[]string{"172.19.0.10:8702", "172.19.0.6:8713"}, "",
}, {
topologyEc, "172.19.0.17:8703", "12737", "222",
[]string{"172.19.0.13:8701"}, "",
}, {
topologyEc, "172.19.0.20:8706", "14322", "222",
[]string{"172.19.0.14:8711", "172.19.0.5:8705", "172.19.0.6:8713"}, "",
},
}
for _, tc := range testCases {
vid, _ := needle.NewVolumeId(tc.vid)
allEcNodes, _ := collectEcVolumeServersByDc(tc.topology, "")
rp, _ := super_block.NewReplicaPlacementFromString(tc.replicaPlacement)
// Resolve target node by name
var ecNode *EcNode
@@ -247,7 +271,7 @@ func TestPickEcNodeToBalanceShardsInto(t *testing.T) {
}
averageShardsPerEcNode := 5
got, gotErr := pickEcNodeToBalanceShardsInto(vid, ecNode, allEcNodes, nil, averageShardsPerEcNode)
got, gotErr := pickEcNodeToBalanceShardsInto(vid, ecNode, allEcNodes, rp, averageShardsPerEcNode)
if err := errorCheck(gotErr, tc.wantErr); err != nil {
t.Errorf("node %q, volume %q: %s", tc.nodeId, tc.vid, err.Error())
continue