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Migrate Materialize command to vtctldclient (vitessio#14184)
Signed-off-by: Matt Lord <[email protected]>
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189 changes: 189 additions & 0 deletions
189
go/cmd/vtctldclient/command/vreplication/materialize/create.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,189 @@ | ||
| /* | ||
| Copyright 2023 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 materialize | ||
|
|
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| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "strings" | ||
|
|
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| "github.com/spf13/cobra" | ||
|
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| "vitess.io/vitess/go/cmd/vtctldclient/cli" | ||
| "vitess.io/vitess/go/cmd/vtctldclient/command/vreplication/common" | ||
| "vitess.io/vitess/go/vt/sqlparser" | ||
| "vitess.io/vitess/go/vt/topo/topoproto" | ||
|
|
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| vtctldatapb "vitess.io/vitess/go/vt/proto/vtctldata" | ||
| ) | ||
|
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| var ( | ||
| createOptions = struct { | ||
| SourceKeyspace string | ||
| TableSettings tableSettings | ||
| }{} | ||
|
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| // create makes a MaterializeCreate gRPC call to a vtctld. | ||
| create = &cobra.Command{ | ||
| Use: "create", | ||
| Short: "Create and run a Materialize VReplication workflow.", | ||
| Example: `vtctldclient --server localhost:15999 materialize --workflow product_sales --target-keyspace commerce create --source-keyspace commerce --table-settings '[{"target_table": "sales_by_sku", "create_ddl": "create table sales_by_sku (sku varbinary(128) not null primary key, orders bigint, revenue bigint)", "source_expression": "select sku, count(*) as orders, sum(price) as revenue from corder group by sku"}]' --cells zone1 --cells zone2 --tablet-types replica`, | ||
| Long: `Materialize is a lower level VReplication command that allows for generalized materialization | ||
| of tables. The target tables can be copies, aggregations, or views. The target tables are kept | ||
| in sync in near-realtime. The primary flag used to define the materializations (you can have | ||
| multiple per workflow) is table-settings which is a JSON array where each value must contain | ||
| two key/value pairs. The first required key is 'target_table' and it is the name of the table | ||
| in the target-keyspace to store the results in. The second required key is 'source_expression' | ||
| and its value is the select query to run against the source table. An optional key/value pair | ||
| can also be specified for 'create_ddl' which provides the DDL to create the target table if it | ||
| does not exist -- you can alternatively specify a value of 'copy' if the target table schema | ||
| should be copied as-is from the source keyspace. Here's an example value for table-settings: | ||
| [ | ||
| { | ||
| "target_table": "customer_one_email", | ||
| "source_expression": "select email from customer where customer_id = 1" | ||
| }, | ||
| { | ||
| "target_table": "states", | ||
| "source_expression": "select * from states", | ||
| "create_ddl": "copy" | ||
| }, | ||
| { | ||
| "target_table": "sales_by_sku", | ||
| "source_expression": "select sku, count(*) as orders, sum(price) as revenue from corder group by sku", | ||
| "create_ddl": "create table sales_by_sku (sku varbinary(128) not null primary key, orders bigint, revenue bigint)" | ||
| } | ||
| ] | ||
| `, | ||
| SilenceUsage: true, | ||
| DisableFlagsInUseLine: true, | ||
| Aliases: []string{"Create"}, | ||
| Args: cobra.NoArgs, | ||
| PreRunE: func(cmd *cobra.Command, args []string) error { | ||
| if err := common.ParseAndValidateCreateOptions(cmd); err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| }, | ||
| RunE: commandCreate, | ||
| } | ||
| ) | ||
|
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| func commandCreate(cmd *cobra.Command, args []string) error { | ||
| format, err := common.GetOutputFormat(cmd) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| tsp := common.GetTabletSelectionPreference(cmd) | ||
| cli.FinishedParsing(cmd) | ||
|
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| ms := &vtctldatapb.MaterializeSettings{ | ||
| Workflow: common.BaseOptions.Workflow, | ||
| TargetKeyspace: common.BaseOptions.TargetKeyspace, | ||
| SourceKeyspace: createOptions.SourceKeyspace, | ||
| TableSettings: createOptions.TableSettings.val, | ||
| StopAfterCopy: common.CreateOptions.StopAfterCopy, | ||
| Cell: strings.Join(common.CreateOptions.Cells, ","), | ||
| TabletTypes: topoproto.MakeStringTypeCSV(common.CreateOptions.TabletTypes), | ||
| TabletSelectionPreference: tsp, | ||
| } | ||
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| req := &vtctldatapb.MaterializeCreateRequest{ | ||
| Settings: ms, | ||
| } | ||
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| _, err = common.GetClient().MaterializeCreate(common.GetCommandCtx(), req) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| if format == "json" { | ||
| resp := struct { | ||
| Action string | ||
| Status string | ||
| }{ | ||
| Action: "create", | ||
| Status: "success", | ||
| } | ||
| jsonText, _ := cli.MarshalJSONPretty(resp) | ||
| fmt.Println(string(jsonText)) | ||
| } else { | ||
| fmt.Printf("Materialization workflow %s successfully created in the %s keyspace. Use show to view the status.\n", | ||
| common.BaseOptions.Workflow, common.BaseOptions.TargetKeyspace) | ||
| } | ||
|
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| return nil | ||
| } | ||
|
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| // tableSettings is a wrapper around a slice of TableMaterializeSettings | ||
| // proto messages that implements the pflag.Value interface. | ||
| type tableSettings struct { | ||
| val []*vtctldatapb.TableMaterializeSettings | ||
| } | ||
|
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| func (ts *tableSettings) String() string { | ||
| tsj, _ := json.Marshal(ts.val) | ||
| return string(tsj) | ||
| } | ||
|
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| func (ts *tableSettings) Set(v string) error { | ||
| ts.val = make([]*vtctldatapb.TableMaterializeSettings, 0) | ||
| err := json.Unmarshal([]byte(v), &ts.val) | ||
| if err != nil { | ||
| return fmt.Errorf("table-settings is not valid JSON") | ||
| } | ||
| if len(ts.val) == 0 { | ||
| return fmt.Errorf("empty table-settings") | ||
| } | ||
|
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||
| // Validate the provided queries. | ||
| seenSourceTables := make(map[string]bool) | ||
| for _, tms := range ts.val { | ||
| if tms.TargetTable == "" || tms.SourceExpression == "" { | ||
| return fmt.Errorf("missing target_table or source_expression") | ||
| } | ||
| // Validate that the query is valid. | ||
| stmt, err := sqlparser.Parse(tms.SourceExpression) | ||
| if err != nil { | ||
| return fmt.Errorf("invalid source_expression: %q", tms.SourceExpression) | ||
| } | ||
| // Validate that each source-expression uses a different table. | ||
| // If any of them query the same table the materialize workflow | ||
| // will fail. | ||
| err = sqlparser.Walk(func(node sqlparser.SQLNode) (kontinue bool, err error) { | ||
| switch node := node.(type) { | ||
| case sqlparser.TableName: | ||
| if !node.Name.IsEmpty() { | ||
| if seenSourceTables[node.Name.String()] { | ||
| return false, fmt.Errorf("multiple source_expression queries use the same table: %q", node.Name.String()) | ||
| } | ||
| seenSourceTables[node.Name.String()] = true | ||
| } | ||
| } | ||
| return true, nil | ||
| }, stmt) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
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||
| return nil | ||
| } | ||
|
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| func (ts *tableSettings) Type() string { | ||
| return "JSON" | ||
| } |
64 changes: 64 additions & 0 deletions
64
go/cmd/vtctldclient/command/vreplication/materialize/materialize.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| /* | ||
| Copyright 2023 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. | ||
| */ | ||
|
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| package materialize | ||
|
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| import ( | ||
| "github.com/spf13/cobra" | ||
|
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| "vitess.io/vitess/go/cmd/vtctldclient/command/vreplication/common" | ||
| "vitess.io/vitess/go/vt/topo/topoproto" | ||
| ) | ||
|
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| var ( | ||
| // base is the base command for all actions related to Materialize. | ||
| base = &cobra.Command{ | ||
| Use: "Materialize --workflow <workflow> --target-keyspace <keyspace> [command] [command-flags]", | ||
| Short: "Perform commands related to materializing query results from the source keyspace into tables in the target keyspace.", | ||
| DisableFlagsInUseLine: true, | ||
| Aliases: []string{"materialize"}, | ||
| Args: cobra.ExactArgs(1), | ||
| } | ||
| ) | ||
|
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| func registerCommands(root *cobra.Command) { | ||
| common.AddCommonFlags(base) | ||
| root.AddCommand(base) | ||
|
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| create.Flags().StringSliceVarP(&common.CreateOptions.Cells, "cells", "c", nil, "Cells and/or CellAliases to copy table data from.") | ||
| create.Flags().Var((*topoproto.TabletTypeListFlag)(&common.CreateOptions.TabletTypes), "tablet-types", "Source tablet types to replicate table data from (e.g. PRIMARY,REPLICA,RDONLY).") | ||
| create.Flags().BoolVar(&common.CreateOptions.TabletTypesInPreferenceOrder, "tablet-types-in-preference-order", true, "When performing source tablet selection, look for candidates in the type order as they are listed in the tablet-types flag.") | ||
| create.Flags().StringVar(&createOptions.SourceKeyspace, "source-keyspace", "", "Keyspace where the tables queried in the 'source_expression' values within table-settings live.") | ||
| create.MarkFlagRequired("source-keyspace") | ||
| create.Flags().Var(&createOptions.TableSettings, "table-settings", "A JSON array defining what tables to materialize using what select statements. See the --help output for more details.") | ||
| create.MarkFlagRequired("table-settings") | ||
| create.Flags().BoolVar(&common.CreateOptions.StopAfterCopy, "stop-after-copy", false, "Stop the workflow after it's finished copying the existing rows and before it starts replicating changes.") | ||
| base.AddCommand(create) | ||
|
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| // Generic workflow commands. | ||
| opts := &common.SubCommandsOpts{ | ||
| SubCommand: "Materialize", | ||
| Workflow: "product_sales", | ||
| } | ||
| base.AddCommand(common.GetCancelCommand(opts)) | ||
| base.AddCommand(common.GetShowCommand(opts)) | ||
| base.AddCommand(common.GetStartCommand(opts)) | ||
| base.AddCommand(common.GetStopCommand(opts)) | ||
| } | ||
|
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| func init() { | ||
| common.RegisterCommandHandler("Materialize", registerCommands) | ||
| } |
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