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VReplication: Properly handle target shards w/o a primary in Reshard (v…
…itessio#16283) Signed-off-by: Matt Lord <mattalord@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,192 @@ | ||
| /* | ||
| Copyright 2024 The Vitess 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 workflow | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/stretchr/testify/require" | ||
|
|
||
| "vitess.io/vitess/go/sqltypes" | ||
| "vitess.io/vitess/go/vt/topo" | ||
| "vitess.io/vitess/go/vt/topo/topoproto" | ||
|
|
||
| tabletmanagerdatapb "vitess.io/vitess/go/vt/proto/tabletmanagerdata" | ||
| topodatapb "vitess.io/vitess/go/vt/proto/topodata" | ||
| vtctldatapb "vitess.io/vitess/go/vt/proto/vtctldata" | ||
| ) | ||
|
|
||
| const eol = "$" | ||
|
|
||
| func TestReshardCreate(t *testing.T) { | ||
| ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second) | ||
| defer cancel() | ||
|
|
||
| workflowName := "wf1" | ||
| tableName := "t1" | ||
| sourceKeyspaceName := "targetks" | ||
| targetKeyspaceName := "targetks" | ||
| tabletTypes := []topodatapb.TabletType{ | ||
| topodatapb.TabletType_PRIMARY, | ||
| topodatapb.TabletType_REPLICA, | ||
| topodatapb.TabletType_RDONLY, | ||
| } | ||
| tabletTypesStr := topoproto.MakeStringTypeCSV(tabletTypes) | ||
| schema := map[string]*tabletmanagerdatapb.SchemaDefinition{ | ||
| tableName: { | ||
| TableDefinitions: []*tabletmanagerdatapb.TableDefinition{ | ||
| { | ||
| Name: tableName, | ||
| Schema: fmt.Sprintf("CREATE TABLE %s (id BIGINT, name VARCHAR(64), PRIMARY KEY (id))", tableName), | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
|
|
||
| testcases := []struct { | ||
| name string | ||
| sourceKeyspace, targetKeyspace *testKeyspace | ||
| preFunc func(env *testEnv) | ||
| want *vtctldatapb.WorkflowStatusResponse | ||
| wantErr string | ||
| }{ | ||
| { | ||
| name: "basic", | ||
| sourceKeyspace: &testKeyspace{ | ||
| KeyspaceName: sourceKeyspaceName, | ||
| ShardNames: []string{"0"}, | ||
| }, | ||
| targetKeyspace: &testKeyspace{ | ||
| KeyspaceName: targetKeyspaceName, | ||
| ShardNames: []string{"-80", "80-"}, | ||
| }, | ||
| want: &vtctldatapb.WorkflowStatusResponse{ | ||
| ShardStreams: map[string]*vtctldatapb.WorkflowStatusResponse_ShardStreams{ | ||
| "targetks/-80": { | ||
| Streams: []*vtctldatapb.WorkflowStatusResponse_ShardStreamState{ | ||
| { | ||
| Id: 1, | ||
| Tablet: &topodatapb.TabletAlias{Cell: defaultCellName, Uid: startingTargetTabletUID}, | ||
| SourceShard: "targetks/0", Position: position, Status: "Running", Info: "VStream Lag: 0s", | ||
| }, | ||
| }, | ||
| }, | ||
| "targetks/80-": { | ||
| Streams: []*vtctldatapb.WorkflowStatusResponse_ShardStreamState{ | ||
| { | ||
| Id: 1, | ||
| Tablet: &topodatapb.TabletAlias{Cell: defaultCellName, Uid: startingTargetTabletUID + tabletUIDStep}, | ||
| SourceShard: "targetks/0", Position: position, Status: "Running", Info: "VStream Lag: 0s", | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| TrafficState: "Reads Not Switched. Writes Not Switched", | ||
| }, | ||
| }, | ||
| { | ||
| name: "no primary", | ||
| sourceKeyspace: &testKeyspace{ | ||
| KeyspaceName: sourceKeyspaceName, | ||
| ShardNames: []string{"0"}, | ||
| }, | ||
| targetKeyspace: &testKeyspace{ | ||
| KeyspaceName: targetKeyspaceName, | ||
| ShardNames: []string{"-80", "80-"}, | ||
| }, | ||
| preFunc: func(env *testEnv) { | ||
| _, err := env.ts.UpdateShardFields(ctx, targetKeyspaceName, "-80", func(si *topo.ShardInfo) error { | ||
| si.PrimaryAlias = nil | ||
| return nil | ||
| }) | ||
| require.NoError(t, err) | ||
| }, | ||
| wantErr: "buildResharder: target shard -80 has no primary tablet", | ||
| }, | ||
| } | ||
| for _, tc := range testcases { | ||
| t.Run(tc.name, func(t *testing.T) { | ||
| require.NotNil(t, tc.sourceKeyspace) | ||
| require.NotNil(t, tc.targetKeyspace) | ||
|
|
||
| env := newTestEnv(t, ctx, defaultCellName, tc.sourceKeyspace, tc.targetKeyspace) | ||
| defer env.close() | ||
| env.tmc.schema = schema | ||
|
|
||
| req := &vtctldatapb.ReshardCreateRequest{ | ||
| Keyspace: targetKeyspaceName, | ||
| Workflow: workflowName, | ||
| TabletTypes: tabletTypes, | ||
| SourceShards: tc.sourceKeyspace.ShardNames, | ||
| TargetShards: tc.targetKeyspace.ShardNames, | ||
| Cells: []string{env.cell}, | ||
| } | ||
|
|
||
| for i := range tc.sourceKeyspace.ShardNames { | ||
| tabletUID := startingSourceTabletUID + (tabletUIDStep * i) | ||
| env.tmc.expectVRQuery( | ||
| tabletUID, | ||
| "select distinct table_name from _vt.copy_state cs, _vt.vreplication vr where vr.id = cs.vrepl_id and vr.id = 1", | ||
| &sqltypes.Result{}, | ||
| ) | ||
| env.tmc.expectVRQuery( | ||
| tabletUID, | ||
| "select vrepl_id, table_name, lastpk from _vt.copy_state where vrepl_id in (1) and id in (select max(id) from _vt.copy_state where vrepl_id in (1) group by vrepl_id, table_name)", | ||
| &sqltypes.Result{}, | ||
| ) | ||
| } | ||
|
|
||
| for i, target := range tc.targetKeyspace.ShardNames { | ||
| tabletUID := startingTargetTabletUID + (tabletUIDStep * i) | ||
| env.tmc.expectVRQuery( | ||
| tabletUID, | ||
| insertPrefix+ | ||
| `\('`+workflowName+`', 'keyspace:"`+targetKeyspaceName+`" shard:"0" filter:{rules:{match:"/.*" filter:"`+target+`"}}', '', [0-9]*, [0-9]*, '`+ | ||
| env.cell+`', '`+tabletTypesStr+`', [0-9]*, 0, 'Stopped', 'vt_`+targetKeyspaceName+`', 4, 0, false, '{}'\)`+eol, | ||
| &sqltypes.Result{}, | ||
| ) | ||
| env.tmc.expectVRQuery( | ||
| tabletUID, | ||
| "select distinct table_name from _vt.copy_state cs, _vt.vreplication vr where vr.id = cs.vrepl_id and vr.id = 1", | ||
| &sqltypes.Result{}, | ||
| ) | ||
| env.tmc.expectVRQuery( | ||
| tabletUID, | ||
| "select vrepl_id, table_name, lastpk from _vt.copy_state where vrepl_id in (1) and id in (select max(id) from _vt.copy_state where vrepl_id in (1) group by vrepl_id, table_name)", | ||
| &sqltypes.Result{}, | ||
| ) | ||
| } | ||
|
|
||
| if tc.preFunc != nil { | ||
| tc.preFunc(env) | ||
| } | ||
|
|
||
| res, err := env.ws.ReshardCreate(ctx, req) | ||
| if tc.wantErr != "" { | ||
| require.EqualError(t, err, tc.wantErr) | ||
| return | ||
| } | ||
| require.NoError(t, err) | ||
| if tc.want != nil { | ||
| require.Equal(t, tc.want, res) | ||
| } | ||
| }) | ||
| } | ||
| } |
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