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c7a623ff81
### Summary Introduce Clickhouse for data statistics. Signed-off-by: Jin Hai <haijin.chn@gmail.com>
103 lines
2.3 KiB
Go
103 lines
2.3 KiB
Go
//
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// Copyright 2026 The InfiniFlow Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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package clickhouse
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import (
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//"context"
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//"crypto/tls"
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//"fmt"
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//"log"
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"context"
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"fmt"
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"ragflow/internal/server"
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"sync"
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"time"
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"github.com/ClickHouse/clickhouse-go/v2"
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"github.com/ClickHouse/clickhouse-go/v2/lib/driver"
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)
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var (
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globalDriver *Driver
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once sync.Once
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)
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// GetDriver gets global ClickHouse client instance
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func GetDriver() *Driver {
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return globalDriver
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}
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type Driver struct {
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conn driver.Conn
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config *clickhouse.Options
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}
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func Init(config *server.ClickhouseConfig, ctx context.Context) error {
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var err error
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once.Do(func() {
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address := fmt.Sprintf("%s:%d", config.Host, config.Port)
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globalDriver = &Driver{}
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globalDriver.config = &clickhouse.Options{
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Addr: []string{address},
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Auth: clickhouse.Auth{
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Database: config.Database,
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Username: config.User,
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Password: config.Password,
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},
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DialTimeout: 5 * time.Second,
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MaxOpenConns: 10,
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MaxIdleConns: 5,
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ConnMaxLifetime: time.Hour,
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}
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globalDriver.conn, err = clickhouse.Open(globalDriver.config)
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if err != nil {
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return
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}
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if err = globalDriver.conn.Ping(ctx); err != nil {
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return
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}
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})
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return err
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}
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func (d *Driver) Ping(ctx context.Context) error {
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return d.conn.Ping(ctx)
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}
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func (d *Driver) Status() (map[string]interface{}, error) {
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stats := d.conn.Stats()
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version, err := d.conn.ServerVersion()
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if err != nil {
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return nil, fmt.Errorf("failed to get server version: %w", err)
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}
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return map[string]interface{}{
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"max_open_conns": stats.MaxOpenConns,
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"max_idle_conns": stats.MaxIdleConns,
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"open": stats.Open,
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"idle": stats.Idle,
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"server_version": version.String(),
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}, nil
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}
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func Close() error {
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return globalDriver.conn.Close()
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}
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