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onlineddl.go
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onlineddl.go
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// Copyright 2021 PingCAP, Inc.
//
// 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package checker
import (
"context"
"database/sql"
"github.com/pingcap/tidb/pkg/util/dbutil"
"github.com/pingcap/tidb/pkg/util/filter"
onlineddl "github.com/pingcap/tiflow/dm/syncer/online-ddl-tools"
)
type OnlineDDLChecker struct {
db *sql.DB
onlineDDL onlineddl.OnlinePlugin
bwlist *filter.Filter
checkSchemas map[string]struct{}
}
func NewOnlineDDLChecker(db *sql.DB, checkSchemas map[string]struct{}, onlineDDL onlineddl.OnlinePlugin, bwlist *filter.Filter) RealChecker {
return &OnlineDDLChecker{
db: db,
checkSchemas: checkSchemas,
onlineDDL: onlineDDL,
bwlist: bwlist,
}
}
func (c *OnlineDDLChecker) Check(ctx context.Context) *Result {
r := &Result{
Name: c.Name(),
Desc: "check if in online ddl phase",
State: StateSuccess,
Extra: "online ddl",
}
for schema := range c.checkSchemas {
tableList, err := dbutil.GetTables(ctx, c.db, schema)
if err != nil {
markCheckError(r, err)
return r
}
realTables := []*filter.Table{}
for _, table := range tableList {
if c.onlineDDL.TableType(table) == onlineddl.GhostTable {
realTable := c.onlineDDL.RealName(table)
realTables = append(realTables, &filter.Table{
Schema: schema,
Name: realTable,
})
}
}
tables := c.bwlist.Apply(realTables)
if len(tables) != 0 {
r.State = StateFailure
r.Extra = "please wait the online-ddl over"
r.Errors = append(r.Errors, NewError("your ddl is in pt/ghost online-ddl"))
return r
}
}
return r
}
func (c *OnlineDDLChecker) Name() string {
return "online ddl checker"
}