github.com/matrixorigin/matrixone@v0.7.0/pkg/tests/txn/cluster_mo_ctl_test.go (about)

     1  // Copyright 2021 - 2022 Matrix Origin
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package txn
    16  
    17  import (
    18  	"database/sql"
    19  	"fmt"
    20  	"testing"
    21  
    22  	"github.com/lni/goutils/leaktest"
    23  	pb "github.com/matrixorigin/matrixone/pkg/pb/ctl"
    24  	"github.com/matrixorigin/matrixone/pkg/pb/timestamp"
    25  	"github.com/matrixorigin/matrixone/pkg/util/json"
    26  	"github.com/stretchr/testify/require"
    27  )
    28  
    29  func TestMoCtlGetSnapshot(t *testing.T) {
    30  	defer leaktest.AfterTest(t)()
    31  	if testing.Short() {
    32  		t.Skip("skipping in short mode.")
    33  		return
    34  	}
    35  
    36  	// this case will start a mo cluster with 1 CNService, 1 DNService and 3 LogService.
    37  	// A Txn read and write will success.
    38  	for name, options := range testOptionsSet {
    39  		t.Run(name, func(t *testing.T) {
    40  			c, err := NewCluster(t,
    41  				getBasicClusterOptions(options...))
    42  			require.NoError(t, err)
    43  			defer c.Stop()
    44  			c.Start()
    45  
    46  			cli := c.NewClient()
    47  			v := mustGetSnapshot(t, cli)
    48  			ts, err := timestamp.ParseTimestamp(v)
    49  			require.NoError(t, err)
    50  			require.NotEqual(t, timestamp.Timestamp{}, ts)
    51  		})
    52  	}
    53  }
    54  
    55  func TestMoCtlUseSnapshot(t *testing.T) {
    56  	defer leaktest.AfterTest(t)()
    57  	if testing.Short() {
    58  		t.Skip("skipping in short mode.")
    59  		return
    60  	}
    61  
    62  	// this case will start a mo cluster with 1 CNService, 1 DNService and 3 LogService.
    63  	// A Txn read and write will success.
    64  	for name, options := range testOptionsSet {
    65  		t.Run(name, func(t *testing.T) {
    66  			c, err := NewCluster(t,
    67  				getBasicClusterOptions(options...))
    68  			require.NoError(t, err)
    69  			defer c.Stop()
    70  			c.Start()
    71  
    72  			cli := c.NewClient()
    73  
    74  			k1 := "k1"
    75  			checkWrite(t, mustNewTxn(t, cli), k1, "1", nil, true)
    76  			checkRead(t, mustNewTxn(t, cli), k1, "1", nil, true)
    77  
    78  			v := mustGetSnapshot(t, cli)
    79  
    80  			checkWrite(t, mustNewTxn(t, cli), k1, "2", nil, true)
    81  			checkRead(t, mustNewTxn(t, cli), k1, "2", nil, true)
    82  
    83  			mustUseSnapshot(t, cli, v)
    84  			checkRead(t, mustNewTxn(t, cli), k1, "1", nil, true)
    85  		})
    86  	}
    87  }
    88  
    89  func mustCloseRows(t *testing.T, rows *sql.Rows) {
    90  	require.NoError(t, rows.Close())
    91  }
    92  
    93  func mustGetSnapshot(t *testing.T, cli Client) string {
    94  	txn, err := cli.NewTxn()
    95  	require.NoError(t, err)
    96  	sqlTxn := txn.(SQLBasedTxn)
    97  	defer func() {
    98  		require.NoError(t, sqlTxn.Commit())
    99  	}()
   100  
   101  	rows, err := sqlTxn.ExecSQLQuery("select mo_ctl('cn', 'GetSnapshot', '')")
   102  	require.NoError(t, err)
   103  
   104  	defer mustCloseRows(t, rows)
   105  	require.True(t, rows.Next())
   106  
   107  	var result pb.CtlResult
   108  	value := ""
   109  	require.NoError(t, rows.Scan(&value))
   110  	json.MustUnmarshal([]byte(value), &result)
   111  	return result.Data.(string)
   112  }
   113  
   114  func mustUseSnapshot(t *testing.T, cli Client, ts string) {
   115  	txn, err := cli.NewTxn()
   116  	require.NoError(t, err)
   117  	sqlTxn := txn.(SQLBasedTxn)
   118  	defer func() {
   119  		require.NoError(t, sqlTxn.Commit())
   120  	}()
   121  
   122  	rows, err := sqlTxn.ExecSQLQuery(fmt.Sprintf("select mo_ctl('cn', 'UseSnapshot', '%s')", ts))
   123  	require.NoError(t, err)
   124  	mustCloseRows(t, rows)
   125  }