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mcs, tso: change keyspace group primary path. #6526
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| // Copyright 2023 TiKV Project Authors. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package tso | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "regexp" | ||
| "strconv" | ||
| ) | ||
|
|
||
| // ExtractKeyspaceGroupIDFromPath extracts keyspace group id from the given path, which contains | ||
| // the pattern of `tso/keyspace_groups/membership/(\d{5})$`. | ||
| func ExtractKeyspaceGroupIDFromPath(compiledRegexp *regexp.Regexp, path string) (uint32, error) { | ||
| match := compiledRegexp.FindStringSubmatch(path) | ||
| if match == nil { | ||
| return 0, fmt.Errorf("invalid keyspace group id path: %s", path) | ||
| } | ||
| id, err := strconv.ParseUint(match[1], 10, 32) | ||
| if err != nil { | ||
| return 0, fmt.Errorf("failed to parse keyspace group ID: %v", err) | ||
| } | ||
| return uint32(id), nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| // Copyright 2023 TiKV Project Authors. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package tso | ||
|
|
||
| import ( | ||
| "path" | ||
| "testing" | ||
|
|
||
| "github.com/stretchr/testify/require" | ||
| "github.com/tikv/pd/pkg/storage/endpoint" | ||
| ) | ||
|
|
||
| func TestExtractKeyspaceGroupIDFromKeyspaceGroupMembershipPath(t *testing.T) { | ||
| re := require.New(t) | ||
|
|
||
| compiledRegexp := endpoint.GetCompiledKeyspaceGroupIDRegexp() | ||
|
|
||
| rightCases := []struct { | ||
| path string | ||
| id uint32 | ||
| }{ | ||
| {path: "/pd/{cluster_id}/tso/keyspace_groups/membership/00000", id: 0}, | ||
| {path: "/pd/{cluster_id}/tso/keyspace_groups/membership/00001", id: 1}, | ||
| {path: "/pd/{cluster_id}/tso/keyspace_groups/membership/12345", id: 12345}, | ||
| {path: "/pd/{cluster_id}/tso/keyspace_groups/membership/99999", id: 99999}, | ||
| {path: "tso/keyspace_groups/membership/00000", id: 0}, | ||
| {path: "tso/keyspace_groups/membership/00001", id: 1}, | ||
| {path: "tso/keyspace_groups/membership/12345", id: 12345}, | ||
| {path: "tso/keyspace_groups/membership/99999", id: 99999}, | ||
| } | ||
|
|
||
| for _, tt := range rightCases { | ||
| id, err := ExtractKeyspaceGroupIDFromPath(compiledRegexp, tt.path) | ||
| re.Equal(tt.id, id) | ||
| re.NoError(err) | ||
| } | ||
|
|
||
| wrongCases := []struct { | ||
| path string | ||
| }{ | ||
| {path: ""}, | ||
| {path: "00001"}, | ||
| {path: "xxx/keyspace_groups/membership/00001"}, | ||
| {path: "tso/xxxxxxxxxxxxxxx/membership/00001"}, | ||
| {path: "tso/keyspace_groups/xxxxxxxxxx/00001"}, | ||
| {path: "/pd/{cluster_id}/tso/keyspace_groups/xxxxxxxxxx/00001"}, | ||
| {path: "/pd/{cluster_id}/xxx/keyspace_groups/membership/00001"}, | ||
| {path: "/pd/{cluster_id}/tso/xxxxxxxxxxxxxxx/membership/00001"}, | ||
| {path: "/pd/{cluster_id}/tso/keyspace_groups/membership/"}, | ||
| {path: "/pd/{cluster_id}/tso/keyspace_groups/membership/0"}, | ||
| {path: "/pd/{cluster_id}/tso/keyspace_groups/membership/0001"}, | ||
| {path: "/pd/{cluster_id}/tso/keyspace_groups/membership/123456"}, | ||
| {path: "/pd/{cluster_id}/tso/keyspace_groups/membership/1234a"}, | ||
| {path: "/pd/{cluster_id}/tso/keyspace_groups/membership/12345a"}, | ||
| } | ||
|
|
||
| for _, tt := range wrongCases { | ||
| _, err := ExtractKeyspaceGroupIDFromPath(compiledRegexp, tt.path) | ||
| re.Error(err) | ||
| } | ||
| } | ||
|
|
||
| func TestExtractKeyspaceGroupIDFromKeyspaceGroupPrimaryPath(t *testing.T) { | ||
| re := require.New(t) | ||
|
|
||
| tsoSvcRootPath := "/ms/111/tso" | ||
| primaryPathBuilder := &kgPrimaryPathBuilder{ | ||
| rootPath: tsoSvcRootPath, | ||
| defaultKeyspaceGroupIDPath: path.Join(tsoSvcRootPath, "00000"), | ||
| } | ||
|
|
||
| compiledRegexp := primaryPathBuilder.getCompiledNonDefaultIDRegexp() | ||
|
|
||
| rightCases := []struct { | ||
| path string | ||
| id uint32 | ||
| }{ | ||
| {path: "/ms/111/tso/keyspace_groups/election/00001/primary", id: 1}, | ||
| {path: "/ms/111/tso/keyspace_groups/election/12345/primary", id: 12345}, | ||
| {path: "/ms/111/tso/keyspace_groups/election/99999/primary", id: 99999}, | ||
| } | ||
|
|
||
| for _, tt := range rightCases { | ||
| id, err := ExtractKeyspaceGroupIDFromPath(compiledRegexp, tt.path) | ||
| re.Equal(tt.id, id) | ||
| re.NoError(err) | ||
| } | ||
| } |
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Why do we need to separate it into two functions?
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performance concern. Compile the patten once and use it every time for matching to boost performance. It should save time for loading all the existing keyspace groups before starting watch loop, thus speed up server bootstrap.