vitess.io/vitess@v0.16.2/go/vt/vttablet/tabletserver/queryz_test.go (about)

     1  /*
     2  Copyright 2019 The Vitess Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package tabletserver
    18  
    19  import (
    20  	"fmt"
    21  	"io"
    22  	"net/http"
    23  	"net/http/httptest"
    24  	"regexp"
    25  	"strings"
    26  	"testing"
    27  	"time"
    28  
    29  	"vitess.io/vitess/go/vt/dbconfigs"
    30  	"vitess.io/vitess/go/vt/sqlparser"
    31  	"vitess.io/vitess/go/vt/vttablet/tabletserver/planbuilder"
    32  	"vitess.io/vitess/go/vt/vttablet/tabletserver/schema"
    33  )
    34  
    35  func TestQueryzHandler(t *testing.T) {
    36  	resp := httptest.NewRecorder()
    37  	req, _ := http.NewRequest("GET", "/schemaz", nil)
    38  	qe := newTestQueryEngine(10*time.Second, true, &dbconfigs.DBConfigs{})
    39  
    40  	const query1 = "select name from test_table"
    41  	plan1 := &TabletPlan{
    42  		Original: query1,
    43  		Plan: &planbuilder.Plan{
    44  			Table:  &schema.Table{Name: sqlparser.NewIdentifierCS("test_table")},
    45  			PlanID: planbuilder.PlanSelect,
    46  		},
    47  	}
    48  	plan1.AddStats(10, 2*time.Second, 1*time.Second, 0, 2, 0)
    49  	qe.plans.Set(query1, plan1)
    50  
    51  	const query2 = "insert into test_table values 1"
    52  	plan2 := &TabletPlan{
    53  		Original: query2,
    54  		Plan: &planbuilder.Plan{
    55  			Table:  &schema.Table{Name: sqlparser.NewIdentifierCS("test_table")},
    56  			PlanID: planbuilder.PlanDDL,
    57  		},
    58  	}
    59  	plan2.AddStats(1, 2*time.Millisecond, 1*time.Millisecond, 1, 0, 0)
    60  	qe.plans.Set(query2, plan2)
    61  
    62  	const query3 = "show tables"
    63  	plan3 := &TabletPlan{
    64  		Original: query3,
    65  		Plan: &planbuilder.Plan{
    66  			Table:  &schema.Table{Name: sqlparser.NewIdentifierCS("")},
    67  			PlanID: planbuilder.PlanOtherRead,
    68  		},
    69  	}
    70  	plan3.AddStats(1, 75*time.Millisecond, 50*time.Millisecond, 0, 1, 0)
    71  	qe.plans.Set(query3, plan3)
    72  	qe.plans.Set("", (*TabletPlan)(nil))
    73  
    74  	hugeInsert := "insert into test_table values 0"
    75  	for i := 1; i < 1000; i++ {
    76  		hugeInsert = hugeInsert + fmt.Sprintf(", %d", i)
    77  	}
    78  	plan4 := &TabletPlan{
    79  		Original: hugeInsert,
    80  		Plan: &planbuilder.Plan{
    81  			Table:  &schema.Table{Name: sqlparser.NewIdentifierCS("")},
    82  			PlanID: planbuilder.PlanOtherRead,
    83  		},
    84  	}
    85  	plan4.AddStats(1, 1*time.Millisecond, 1*time.Millisecond, 1, 0, 0)
    86  	qe.plans.Set(hugeInsert, plan4)
    87  	qe.plans.Set("", (*TabletPlan)(nil))
    88  
    89  	// Wait for cache to settle
    90  	qe.plans.Wait()
    91  
    92  	queryzHandler(qe, resp, req)
    93  	body, _ := io.ReadAll(resp.Body)
    94  	planPattern1 := []string{
    95  		`<tr class="high">`,
    96  		`<td>select name from test_table</td>`,
    97  		`<td>test_table</td>`,
    98  		`<td>Select</td>`,
    99  		`<td>10</td>`,
   100  		`<td>2.000000</td>`,
   101  		`<td>1.000000</td>`,
   102  		`<td>0</td>`,
   103  		`<td>2</td>`,
   104  		`<td>0</td>`,
   105  		`<td>0.200000</td>`,
   106  		`<td>0.100000</td>`,
   107  		`<td>0.000000</td>`,
   108  		`<td>0.200000</td>`,
   109  		`<td>0.000000</td>`,
   110  	}
   111  	checkQueryzHasPlan(t, planPattern1, plan1, body)
   112  	planPattern2 := []string{
   113  		`<tr class="low">`,
   114  		`<td>insert into test_table values 1</td>`,
   115  		`<td>test_table</td>`,
   116  		`<td>DDL</td>`,
   117  		`<td>1</td>`,
   118  		`<td>0.002000</td>`,
   119  		`<td>0.001000</td>`,
   120  		`<td>1</td>`,
   121  		`<td>0</td>`,
   122  		`<td>0</td>`,
   123  		`<td>0.002000</td>`,
   124  		`<td>0.001000</td>`,
   125  		`<td>1.000000</td>`,
   126  		`<td>0.000000</td>`,
   127  		`<td>0.000000</td>`,
   128  	}
   129  	checkQueryzHasPlan(t, planPattern2, plan2, body)
   130  	planPattern3 := []string{
   131  		`<tr class="medium">`,
   132  		`<td>show tables</td>`,
   133  		`<td></td>`,
   134  		`<td>OtherRead</td>`,
   135  		`<td>1</td>`,
   136  		`<td>0.075000</td>`,
   137  		`<td>0.050000</td>`,
   138  		`<td>0</td>`,
   139  		`<td>1</td>`,
   140  		`<td>0</td>`,
   141  		`<td>0.075000</td>`,
   142  		`<td>0.050000</td>`,
   143  		`<td>0.000000</td>`,
   144  		`<td>1.000000</td>`,
   145  		`<td>0.000000</td>`,
   146  	}
   147  	checkQueryzHasPlan(t, planPattern3, plan3, body)
   148  	planPattern4 := []string{
   149  		`<tr class="low">`,
   150  		`<td>insert into test_table values .* \[TRUNCATED\][^<]*</td>`,
   151  		`<td></td>`,
   152  		`<td>OtherRead</td>`,
   153  		`<td>1</td>`,
   154  		`<td>0.001000</td>`,
   155  		`<td>0.001000</td>`,
   156  		`<td>1</td>`,
   157  		`<td>0</td>`,
   158  		`<td>0</td>`,
   159  		`<td>0.001000</td>`,
   160  		`<td>0.001000</td>`,
   161  		`<td>1.000000</td>`,
   162  		`<td>0.000000</td>`,
   163  		`<td>0.000000</td>`,
   164  	}
   165  	checkQueryzHasPlan(t, planPattern4, plan4, body)
   166  }
   167  
   168  func checkQueryzHasPlan(t *testing.T, planPattern []string, plan *TabletPlan, page []byte) {
   169  	matcher := regexp.MustCompile(strings.Join(planPattern, `\s*`))
   170  	if !matcher.Match(page) {
   171  		t.Fatalf("queryz page does not contain\nplan:\n%#v\npattern:\n%v\npage:\n%s", plan, strings.Join(planPattern, `\s*`), string(page))
   172  	}
   173  }