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// Copyright 2016 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 variable
import (
"encoding/json"
"reflect"
"time"
. "github.com/pingcap/check"
"github.com/pingcap/parser/mysql"
"github.com/pingcap/parser/terror"
"github.com/pingcap/tidb/config"
"github.com/pingcap/tidb/kv"
"github.com/pingcap/tidb/types"
"github.com/pingcap/tidb/util/testleak"
)
var _ = Suite(&testVarsutilSuite{})
type testVarsutilSuite struct {
}
func (s *testVarsutilSuite) TestTiDBOptOn(c *C) {
defer testleak.AfterTest(c)()
tbl := []struct {
val string
on bool
}{
{"ON", true},
{"on", true},
{"On", true},
{"1", true},
{"off", false},
{"No", false},
{"0", false},
{"1.1", false},
{"", false},
}
for _, t := range tbl {
on := TiDBOptOn(t.val)
c.Assert(on, Equals, t.on)
}
}
func (s *testVarsutilSuite) TestNewSessionVars(c *C) {
defer testleak.AfterTest(c)()
vars := NewSessionVars()
c.Assert(vars.IndexJoinBatchSize, Equals, DefIndexJoinBatchSize)
c.Assert(vars.IndexLookupSize, Equals, DefIndexLookupSize)
c.Assert(vars.IndexLookupConcurrency, Equals, DefIndexLookupConcurrency)
c.Assert(vars.IndexSerialScanConcurrency, Equals, DefIndexSerialScanConcurrency)
c.Assert(vars.IndexLookupJoinConcurrency, Equals, DefIndexLookupJoinConcurrency)
c.Assert(vars.HashJoinConcurrency, Equals, DefTiDBHashJoinConcurrency)
c.Assert(vars.AllowBatchCop, Equals, DefTiDBAllowBatchCop)
c.Assert(vars.AllowBCJ, Equals, DefOptBCJ)
c.Assert(vars.ProjectionConcurrency, Equals, int64(DefTiDBProjectionConcurrency))
c.Assert(vars.HashAggPartialConcurrency, Equals, DefTiDBHashAggPartialConcurrency)
c.Assert(vars.HashAggFinalConcurrency, Equals, DefTiDBHashAggFinalConcurrency)
c.Assert(vars.WindowConcurrency, Equals, DefTiDBWindowConcurrency)
c.Assert(vars.UnionConcurrency, Equals, DefTiDBUnionConcurrency)
c.Assert(vars.DistSQLScanConcurrency, Equals, DefDistSQLScanConcurrency)
c.Assert(vars.MaxChunkSize, Equals, DefMaxChunkSize)
c.Assert(vars.DMLBatchSize, Equals, DefDMLBatchSize)
c.Assert(vars.MemQuotaQuery, Equals, config.GetGlobalConfig().MemQuotaQuery)
c.Assert(vars.MemQuotaHashJoin, Equals, int64(DefTiDBMemQuotaHashJoin))
c.Assert(vars.MemQuotaMergeJoin, Equals, int64(DefTiDBMemQuotaMergeJoin))
c.Assert(vars.MemQuotaSort, Equals, int64(DefTiDBMemQuotaSort))
c.Assert(vars.MemQuotaTopn, Equals, int64(DefTiDBMemQuotaTopn))
c.Assert(vars.MemQuotaIndexLookupReader, Equals, int64(DefTiDBMemQuotaIndexLookupReader))
c.Assert(vars.MemQuotaIndexLookupJoin, Equals, int64(DefTiDBMemQuotaIndexLookupJoin))
c.Assert(vars.MemQuotaNestedLoopApply, Equals, int64(DefTiDBMemQuotaNestedLoopApply))
c.Assert(vars.EnableRadixJoin, Equals, DefTiDBUseRadixJoin)
c.Assert(vars.AllowWriteRowID, Equals, DefOptWriteRowID)
c.Assert(vars.TiDBOptJoinReorderThreshold, Equals, DefTiDBOptJoinReorderThreshold)
c.Assert(vars.EnableFastAnalyze, Equals, DefTiDBUseFastAnalyze)
c.Assert(vars.FoundInPlanCache, Equals, DefTiDBFoundInPlanCache)
c.Assert(vars.AllowAutoRandExplicitInsert, Equals, DefTiDBAllowAutoRandExplicitInsert)
assertFieldsGreaterThanZero(c, reflect.ValueOf(vars.Concurrency))
assertFieldsGreaterThanZero(c, reflect.ValueOf(vars.MemQuota))
assertFieldsGreaterThanZero(c, reflect.ValueOf(vars.BatchSize))
}
func assertFieldsGreaterThanZero(c *C, val reflect.Value) {
for i := 0; i < val.NumField(); i++ {
fieldVal := val.Field(i)
c.Assert(fieldVal.Int(), Greater, int64(0))
}
}
func (s *testVarsutilSuite) TestVarsutil(c *C) {
defer testleak.AfterTest(c)()
v := NewSessionVars()
v.GlobalVarsAccessor = NewMockGlobalAccessor()
err := SetSessionSystemVar(v, "autocommit", types.NewStringDatum("1"))
c.Assert(err, IsNil)
val, err := GetSessionSystemVar(v, "autocommit")
c.Assert(err, IsNil)
c.Assert(val, Equals, "1")
c.Assert(SetSessionSystemVar(v, "autocommit", types.Datum{}), NotNil)
// 0 converts to OFF
err = SetSessionSystemVar(v, "foreign_key_checks", types.NewStringDatum("0"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, "foreign_key_checks")
c.Assert(err, IsNil)
c.Assert(val, Equals, "OFF")
// 1/ON is not supported (generates a warning and sets to OFF)
err = SetSessionSystemVar(v, "foreign_key_checks", types.NewStringDatum("1"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, "foreign_key_checks")
c.Assert(err, IsNil)
c.Assert(val, Equals, "OFF")
err = SetSessionSystemVar(v, "sql_mode", types.NewStringDatum("strict_trans_tables"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, "sql_mode")
c.Assert(err, IsNil)
c.Assert(val, Equals, "STRICT_TRANS_TABLES")
c.Assert(v.StrictSQLMode, IsTrue)
SetSessionSystemVar(v, "sql_mode", types.NewStringDatum(""))
c.Assert(v.StrictSQLMode, IsFalse)
err = SetSessionSystemVar(v, "character_set_connection", types.NewStringDatum("utf8"))
c.Assert(err, IsNil)
err = SetSessionSystemVar(v, "collation_connection", types.NewStringDatum("utf8_general_ci"))
c.Assert(err, IsNil)
charset, collation := v.GetCharsetInfo()
c.Assert(charset, Equals, "utf8")
c.Assert(collation, Equals, "utf8_general_ci")
c.Assert(SetSessionSystemVar(v, "character_set_results", types.Datum{}), IsNil)
// Test case for time_zone session variable.
tests := []struct {
input string
expect string
compareValue bool
diff time.Duration
err error
}{
{"Europe/Helsinki", "Europe/Helsinki", true, -2 * time.Hour, nil},
{"US/Eastern", "US/Eastern", true, 5 * time.Hour, nil},
//TODO: Check it out and reopen this case.
//{"SYSTEM", "Local", false, 0},
{"+10:00", "", true, -10 * time.Hour, nil},
{"-6:00", "", true, 6 * time.Hour, nil},
{"+14:00", "", true, -14 * time.Hour, nil},
{"-12:59", "", true, 12*time.Hour + 59*time.Minute, nil},
{"+14:01", "", false, -14 * time.Hour, ErrUnknownTimeZone.GenWithStackByArgs("+14:01")},
{"-13:00", "", false, 13 * time.Hour, ErrUnknownTimeZone.GenWithStackByArgs("-13:00")},
}
for _, tt := range tests {
err = SetSessionSystemVar(v, TimeZone, types.NewStringDatum(tt.input))
if tt.err != nil {
c.Assert(err, NotNil)
continue
}
c.Assert(err, IsNil)
c.Assert(v.TimeZone.String(), Equals, tt.expect)
if tt.compareValue {
SetSessionSystemVar(v, TimeZone, types.NewStringDatum(tt.input))
t1 := time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC)
t2 := time.Date(2000, 1, 1, 0, 0, 0, 0, v.TimeZone)
c.Assert(t2.Sub(t1), Equals, tt.diff)
}
}
err = SetSessionSystemVar(v, TimeZone, types.NewStringDatum("6:00"))
c.Assert(err, NotNil)
c.Assert(terror.ErrorEqual(err, ErrUnknownTimeZone), IsTrue)
// Test case for sql mode.
for str, mode := range mysql.Str2SQLMode {
SetSessionSystemVar(v, "sql_mode", types.NewStringDatum(str))
if modeParts, exists := mysql.CombinationSQLMode[str]; exists {
for _, part := range modeParts {
mode |= mysql.Str2SQLMode[part]
}
}
c.Assert(v.SQLMode, Equals, mode)
}
err = SetSessionSystemVar(v, "tidb_opt_broadcast_join", types.NewStringDatum("1"))
c.Assert(err, IsNil)
err = SetSessionSystemVar(v, "tidb_allow_batch_cop", types.NewStringDatum("0"))
c.Assert(terror.ErrorEqual(err, ErrWrongValueForVar), IsTrue)
err = SetSessionSystemVar(v, "tidb_opt_broadcast_join", types.NewStringDatum("0"))
c.Assert(err, IsNil)
err = SetSessionSystemVar(v, "tidb_allow_batch_cop", types.NewStringDatum("0"))
c.Assert(err, IsNil)
err = SetSessionSystemVar(v, "tidb_opt_broadcast_join", types.NewStringDatum("1"))
c.Assert(terror.ErrorEqual(err, ErrWrongValueForVar), IsTrue)
// Combined sql_mode
SetSessionSystemVar(v, "sql_mode", types.NewStringDatum("REAL_AS_FLOAT,ANSI_QUOTES"))
c.Assert(v.SQLMode, Equals, mysql.ModeRealAsFloat|mysql.ModeANSIQuotes)
// Test case for tidb_index_serial_scan_concurrency.
c.Assert(v.IndexSerialScanConcurrency, Equals, 1)
SetSessionSystemVar(v, TiDBIndexSerialScanConcurrency, types.NewStringDatum("4"))
c.Assert(v.IndexSerialScanConcurrency, Equals, 4)
// Test case for tidb_batch_insert.
c.Assert(v.BatchInsert, IsFalse)
SetSessionSystemVar(v, TiDBBatchInsert, types.NewStringDatum("1"))
c.Assert(v.BatchInsert, IsTrue)
c.Assert(v.InitChunkSize, Equals, 32)
c.Assert(v.MaxChunkSize, Equals, 1024)
err = SetSessionSystemVar(v, TiDBMaxChunkSize, types.NewStringDatum("2"))
c.Assert(err, NotNil)
err = SetSessionSystemVar(v, TiDBInitChunkSize, types.NewStringDatum("1024"))
c.Assert(err, NotNil)
// Test case for TiDBConfig session variable.
err = SetSessionSystemVar(v, TiDBConfig, types.NewStringDatum("abc"))
c.Assert(terror.ErrorEqual(err, ErrReadOnly), IsTrue)
val, err = GetSessionSystemVar(v, TiDBConfig)
c.Assert(err, IsNil)
bVal, err := json.MarshalIndent(config.GetGlobalConfig(), "", "\t")
c.Assert(err, IsNil)
c.Assert(val, Equals, string(bVal))
SetSessionSystemVar(v, TiDBEnableStreaming, types.NewStringDatum("1"))
val, err = GetSessionSystemVar(v, TiDBEnableStreaming)
c.Assert(err, IsNil)
c.Assert(val, Equals, "1")
c.Assert(v.EnableStreaming, Equals, true)
SetSessionSystemVar(v, TiDBEnableStreaming, types.NewStringDatum("0"))
val, err = GetSessionSystemVar(v, TiDBEnableStreaming)
c.Assert(err, IsNil)
c.Assert(val, Equals, "0")
c.Assert(v.EnableStreaming, Equals, false)
c.Assert(v.OptimizerSelectivityLevel, Equals, DefTiDBOptimizerSelectivityLevel)
SetSessionSystemVar(v, TiDBOptimizerSelectivityLevel, types.NewIntDatum(1))
c.Assert(v.OptimizerSelectivityLevel, Equals, 1)
err = SetSessionSystemVar(v, TiDBDDLReorgWorkerCount, types.NewIntDatum(-1))
c.Assert(terror.ErrorEqual(err, ErrWrongValueForVar), IsTrue)
SetSessionSystemVar(v, TiDBDDLReorgWorkerCount, types.NewIntDatum(int64(maxDDLReorgWorkerCount)+1))
c.Assert(terror.ErrorEqual(err, ErrWrongValueForVar), IsTrue)
err = SetSessionSystemVar(v, TiDBRetryLimit, types.NewStringDatum("3"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBRetryLimit)
c.Assert(err, IsNil)
c.Assert(val, Equals, "3")
c.Assert(v.RetryLimit, Equals, int64(3))
c.Assert(v.EnableTablePartition, Equals, "")
err = SetSessionSystemVar(v, TiDBEnableTablePartition, types.NewStringDatum("on"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBEnableTablePartition)
c.Assert(err, IsNil)
c.Assert(val, Equals, "on")
c.Assert(v.EnableTablePartition, Equals, "on")
c.Assert(v.TiDBOptJoinReorderThreshold, Equals, DefTiDBOptJoinReorderThreshold)
err = SetSessionSystemVar(v, TiDBOptJoinReorderThreshold, types.NewIntDatum(5))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBOptJoinReorderThreshold)
c.Assert(err, IsNil)
c.Assert(val, Equals, "5")
c.Assert(v.TiDBOptJoinReorderThreshold, Equals, 5)
err = SetSessionSystemVar(v, TiDBCheckMb4ValueInUTF8, types.NewStringDatum("1"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBCheckMb4ValueInUTF8)
c.Assert(err, IsNil)
c.Assert(val, Equals, "1")
c.Assert(config.GetGlobalConfig().CheckMb4ValueInUTF8, Equals, true)
err = SetSessionSystemVar(v, TiDBCheckMb4ValueInUTF8, types.NewStringDatum("0"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBCheckMb4ValueInUTF8)
c.Assert(err, IsNil)
c.Assert(val, Equals, "0")
c.Assert(config.GetGlobalConfig().CheckMb4ValueInUTF8, Equals, false)
SetSessionSystemVar(v, TiDBLowResolutionTSO, types.NewStringDatum("1"))
val, err = GetSessionSystemVar(v, TiDBLowResolutionTSO)
c.Assert(err, IsNil)
c.Assert(val, Equals, "1")
c.Assert(v.LowResolutionTSO, Equals, true)
SetSessionSystemVar(v, TiDBLowResolutionTSO, types.NewStringDatum("0"))
val, err = GetSessionSystemVar(v, TiDBLowResolutionTSO)
c.Assert(err, IsNil)
c.Assert(val, Equals, "0")
c.Assert(v.LowResolutionTSO, Equals, false)
c.Assert(v.CorrelationThreshold, Equals, 0.9)
err = SetSessionSystemVar(v, TiDBOptCorrelationThreshold, types.NewStringDatum("0"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBOptCorrelationThreshold)
c.Assert(err, IsNil)
c.Assert(val, Equals, "0")
c.Assert(v.CorrelationThreshold, Equals, float64(0))
c.Assert(v.CPUFactor, Equals, 3.0)
err = SetSessionSystemVar(v, TiDBOptCPUFactor, types.NewStringDatum("5.0"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBOptCPUFactor)
c.Assert(err, IsNil)
c.Assert(val, Equals, "5.0")
c.Assert(v.CPUFactor, Equals, 5.0)
c.Assert(v.CopCPUFactor, Equals, 3.0)
err = SetSessionSystemVar(v, TiDBOptCopCPUFactor, types.NewStringDatum("5.0"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBOptCopCPUFactor)
c.Assert(err, IsNil)
c.Assert(val, Equals, "5.0")
c.Assert(v.CopCPUFactor, Equals, 5.0)
c.Assert(v.CopTiFlashConcurrencyFactor, Equals, 24.0)
err = SetSessionSystemVar(v, TiDBOptTiFlashConcurrencyFactor, types.NewStringDatum("5.0"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBOptTiFlashConcurrencyFactor)
c.Assert(err, IsNil)
c.Assert(val, Equals, "5.0")
c.Assert(v.CopCPUFactor, Equals, 5.0)
c.Assert(v.NetworkFactor, Equals, 1.0)
err = SetSessionSystemVar(v, TiDBOptNetworkFactor, types.NewStringDatum("3.0"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBOptNetworkFactor)
c.Assert(err, IsNil)
c.Assert(val, Equals, "3.0")
c.Assert(v.NetworkFactor, Equals, 3.0)
c.Assert(v.ScanFactor, Equals, 1.5)
err = SetSessionSystemVar(v, TiDBOptScanFactor, types.NewStringDatum("3.0"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBOptScanFactor)
c.Assert(err, IsNil)
c.Assert(val, Equals, "3.0")
c.Assert(v.ScanFactor, Equals, 3.0)
c.Assert(v.DescScanFactor, Equals, 3.0)
err = SetSessionSystemVar(v, TiDBOptDescScanFactor, types.NewStringDatum("5.0"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBOptDescScanFactor)
c.Assert(err, IsNil)
c.Assert(val, Equals, "5.0")
c.Assert(v.DescScanFactor, Equals, 5.0)
c.Assert(v.SeekFactor, Equals, 20.0)
err = SetSessionSystemVar(v, TiDBOptSeekFactor, types.NewStringDatum("50.0"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBOptSeekFactor)
c.Assert(err, IsNil)
c.Assert(val, Equals, "50.0")
c.Assert(v.SeekFactor, Equals, 50.0)
c.Assert(v.MemoryFactor, Equals, 0.001)
err = SetSessionSystemVar(v, TiDBOptMemoryFactor, types.NewStringDatum("1.0"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBOptMemoryFactor)
c.Assert(err, IsNil)
c.Assert(val, Equals, "1.0")
c.Assert(v.MemoryFactor, Equals, 1.0)
c.Assert(v.DiskFactor, Equals, 1.5)
err = SetSessionSystemVar(v, TiDBOptDiskFactor, types.NewStringDatum("1.1"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBOptDiskFactor)
c.Assert(err, IsNil)
c.Assert(val, Equals, "1.1")
c.Assert(v.DiskFactor, Equals, 1.1)
c.Assert(v.ConcurrencyFactor, Equals, 3.0)
err = SetSessionSystemVar(v, TiDBOptConcurrencyFactor, types.NewStringDatum("5.0"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBOptConcurrencyFactor)
c.Assert(err, IsNil)
c.Assert(val, Equals, "5.0")
c.Assert(v.ConcurrencyFactor, Equals, 5.0)
SetSessionSystemVar(v, TiDBReplicaRead, types.NewStringDatum("follower"))
val, err = GetSessionSystemVar(v, TiDBReplicaRead)
c.Assert(err, IsNil)
c.Assert(val, Equals, "follower")
c.Assert(v.GetReplicaRead(), Equals, kv.ReplicaReadFollower)
SetSessionSystemVar(v, TiDBReplicaRead, types.NewStringDatum("leader"))
val, err = GetSessionSystemVar(v, TiDBReplicaRead)
c.Assert(err, IsNil)
c.Assert(val, Equals, "leader")
c.Assert(v.GetReplicaRead(), Equals, kv.ReplicaReadLeader)
SetSessionSystemVar(v, TiDBReplicaRead, types.NewStringDatum("leader-and-follower"))
val, err = GetSessionSystemVar(v, TiDBReplicaRead)
c.Assert(err, IsNil)
c.Assert(val, Equals, "leader-and-follower")
c.Assert(v.GetReplicaRead(), Equals, kv.ReplicaReadMixed)
err = SetSessionSystemVar(v, TiDBEnableStmtSummary, types.NewStringDatum("on"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBEnableStmtSummary)
c.Assert(err, IsNil)
c.Assert(val, Equals, "1")
err = SetSessionSystemVar(v, TiDBRedactLog, types.NewStringDatum("ON"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBRedactLog)
c.Assert(err, IsNil)
c.Assert(val, Equals, "ON")
err = SetSessionSystemVar(v, TiDBStmtSummaryRefreshInterval, types.NewStringDatum("10"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBStmtSummaryRefreshInterval)
c.Assert(err, IsNil)
c.Assert(val, Equals, "10")
err = SetSessionSystemVar(v, TiDBStmtSummaryHistorySize, types.NewStringDatum("10"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBStmtSummaryHistorySize)
c.Assert(err, IsNil)
c.Assert(val, Equals, "10")
err = SetSessionSystemVar(v, TiDBStmtSummaryMaxStmtCount, types.NewStringDatum("10"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBStmtSummaryMaxStmtCount)
c.Assert(err, IsNil)
c.Assert(val, Equals, "10")
err = SetSessionSystemVar(v, TiDBStmtSummaryMaxStmtCount, types.NewStringDatum("a"))
c.Assert(err, ErrorMatches, ".*Incorrect argument type to variable 'tidb_stmt_summary_max_stmt_count'")
err = SetSessionSystemVar(v, TiDBStmtSummaryMaxSQLLength, types.NewStringDatum("10"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBStmtSummaryMaxSQLLength)
c.Assert(err, IsNil)
c.Assert(val, Equals, "10")
err = SetSessionSystemVar(v, TiDBStmtSummaryMaxSQLLength, types.NewStringDatum("a"))
c.Assert(err, ErrorMatches, ".*Incorrect argument type to variable 'tidb_stmt_summary_max_sql_length'")
err = SetSessionSystemVar(v, TiDBFoundInPlanCache, types.NewStringDatum("1"))
c.Assert(err, IsNil)
val, err = GetSessionSystemVar(v, TiDBFoundInPlanCache)
c.Assert(err, IsNil)
c.Assert(val, Equals, "0")
c.Assert(v.systems[TiDBFoundInPlanCache], Equals, "1")
err = SetSessionSystemVar(v, "UnknownVariable", types.NewStringDatum("on"))
c.Assert(err, ErrorMatches, ".*]Unknown system variable 'UnknownVariable'")
}
func (s *testVarsutilSuite) TestSetOverflowBehave(c *C) {
ddRegWorker := maxDDLReorgWorkerCount + 1
SetDDLReorgWorkerCounter(ddRegWorker)
c.Assert(maxDDLReorgWorkerCount, Equals, GetDDLReorgWorkerCounter())
ddlReorgBatchSize := MaxDDLReorgBatchSize + 1
SetDDLReorgBatchSize(ddlReorgBatchSize)
c.Assert(MaxDDLReorgBatchSize, Equals, GetDDLReorgBatchSize())
ddlReorgBatchSize = MinDDLReorgBatchSize - 1
SetDDLReorgBatchSize(ddlReorgBatchSize)
c.Assert(MinDDLReorgBatchSize, Equals, GetDDLReorgBatchSize())
val := tidbOptInt64("a", 1)
c.Assert(val, Equals, int64(1))
val2 := tidbOptFloat64("b", 1.2)
c.Assert(val2, Equals, 1.2)
}
func (s *testVarsutilSuite) TestValidate(c *C) {
v := NewSessionVars()
v.GlobalVarsAccessor = NewMockGlobalAccessor()
v.TimeZone = time.UTC
tests := []struct {
key string
value string
error bool
}{
{TiDBAutoAnalyzeStartTime, "15:04", false},
{TiDBAutoAnalyzeStartTime, "15:04 -0700", false},
{DelayKeyWrite, "ON", false},
{DelayKeyWrite, "OFF", false},
{DelayKeyWrite, "ALL", false},
{DelayKeyWrite, "3", true},
{ForeignKeyChecks, "3", true},
{MaxSpRecursionDepth, "256", false},
{SessionTrackGtids, "OFF", false},
{SessionTrackGtids, "OWN_GTID", false},
{SessionTrackGtids, "ALL_GTIDS", false},
{SessionTrackGtids, "ON", true},
{EnforceGtidConsistency, "OFF", false},
{EnforceGtidConsistency, "ON", false},
{EnforceGtidConsistency, "WARN", false},
{QueryCacheType, "OFF", false},
{QueryCacheType, "ON", false},
{QueryCacheType, "DEMAND", false},
{QueryCacheType, "3", true},
{SecureAuth, "1", false},
{SecureAuth, "3", true},
{MyISAMUseMmap, "ON", false},
{MyISAMUseMmap, "OFF", false},
{TiDBEnableTablePartition, "ON", false},
{TiDBEnableTablePartition, "OFF", false},
{TiDBEnableTablePartition, "AUTO", false},
{TiDBEnableTablePartition, "UN", true},
{TiDBOptCorrelationExpFactor, "a", true},
{TiDBOptCorrelationExpFactor, "-10", true},
{TiDBOptCorrelationThreshold, "a", true},
{TiDBOptCorrelationThreshold, "-2", true},
{TiDBOptCPUFactor, "a", true},
{TiDBOptCPUFactor, "-2", true},
{TiDBOptTiFlashConcurrencyFactor, "-2", true},
{TiDBOptCopCPUFactor, "a", true},
{TiDBOptCopCPUFactor, "-2", true},
{TiDBOptNetworkFactor, "a", true},
{TiDBOptNetworkFactor, "-2", true},
{TiDBOptScanFactor, "a", true},
{TiDBOptScanFactor, "-2", true},
{TiDBOptDescScanFactor, "a", true},
{TiDBOptDescScanFactor, "-2", true},
{TiDBOptSeekFactor, "a", true},
{TiDBOptSeekFactor, "-2", true},
{TiDBOptMemoryFactor, "a", true},
{TiDBOptMemoryFactor, "-2", true},
{TiDBOptDiskFactor, "a", true},
{TiDBOptDiskFactor, "-2", true},
{TiDBOptConcurrencyFactor, "a", true},
{TiDBOptConcurrencyFactor, "-2", true},
{TxnIsolation, "READ-UNCOMMITTED", true},
{TiDBInitChunkSize, "a", true},
{TiDBInitChunkSize, "-1", true},
{TiDBMaxChunkSize, "a", true},
{TiDBMaxChunkSize, "-1", true},
{TiDBOptJoinReorderThreshold, "a", true},
{TiDBOptJoinReorderThreshold, "-1", true},
{TiDBReplicaRead, "invalid", true},
{TiDBTxnMode, "invalid", true},
{TiDBTxnMode, "pessimistic", false},
{TiDBTxnMode, "optimistic", false},
{TiDBTxnMode, "", false},
{TiDBIsolationReadEngines, "", true},
{TiDBIsolationReadEngines, "tikv", false},
{TiDBIsolationReadEngines, "TiKV,tiflash", false},
{TiDBIsolationReadEngines, " tikv, tiflash ", false},
{TiDBEnableAmendPessimisticTxn, "0", false},
{TiDBEnableAmendPessimisticTxn, "1", false},
{TiDBEnableAmendPessimisticTxn, "256", true},
}
for _, t := range tests {
_, err := ValidateSetSystemVar(v, t.key, t.value, ScopeGlobal)
if t.error {
c.Assert(err, NotNil, Commentf("%v got err=%v", t, err))
} else {
c.Assert(err, IsNil, Commentf("%v got err=%v", t, err))
}
}
}
func (s *testVarsutilSuite) TestValidateStmtSummary(c *C) {
v := NewSessionVars()
v.GlobalVarsAccessor = NewMockGlobalAccessor()
v.TimeZone = time.UTC
tests := []struct {
key string
value string
error bool
scope ScopeFlag
}{
{TiDBEnableStmtSummary, "a", true, ScopeSession},
{TiDBEnableStmtSummary, "-1", true, ScopeSession},
{TiDBEnableStmtSummary, "", false, ScopeSession},
{TiDBEnableStmtSummary, "", true, ScopeGlobal},
{TiDBStmtSummaryInternalQuery, "a", true, ScopeSession},
{TiDBStmtSummaryInternalQuery, "-1", true, ScopeSession},
{TiDBStmtSummaryInternalQuery, "", false, ScopeSession},
{TiDBStmtSummaryInternalQuery, "", true, ScopeGlobal},
{TiDBStmtSummaryRefreshInterval, "a", true, ScopeSession},
{TiDBStmtSummaryRefreshInterval, "", false, ScopeSession},
{TiDBStmtSummaryRefreshInterval, "", true, ScopeGlobal},
{TiDBStmtSummaryRefreshInterval, "0", true, ScopeGlobal},
{TiDBStmtSummaryRefreshInterval, "99999999999", true, ScopeGlobal},
{TiDBStmtSummaryHistorySize, "a", true, ScopeSession},
{TiDBStmtSummaryHistorySize, "", false, ScopeSession},
{TiDBStmtSummaryHistorySize, "", true, ScopeGlobal},
{TiDBStmtSummaryHistorySize, "0", false, ScopeGlobal},
{TiDBStmtSummaryHistorySize, "-1", true, ScopeGlobal},
{TiDBStmtSummaryHistorySize, "99999999", true, ScopeGlobal},
{TiDBStmtSummaryMaxStmtCount, "a", true, ScopeSession},
{TiDBStmtSummaryMaxStmtCount, "", false, ScopeSession},
{TiDBStmtSummaryMaxStmtCount, "", true, ScopeGlobal},
{TiDBStmtSummaryMaxStmtCount, "0", true, ScopeGlobal},
{TiDBStmtSummaryMaxStmtCount, "99999999", true, ScopeGlobal},
{TiDBStmtSummaryMaxSQLLength, "a", true, ScopeSession},
{TiDBStmtSummaryMaxSQLLength, "", false, ScopeSession},
{TiDBStmtSummaryMaxSQLLength, "", true, ScopeGlobal},
{TiDBStmtSummaryMaxSQLLength, "0", false, ScopeGlobal},
{TiDBStmtSummaryMaxSQLLength, "-1", true, ScopeGlobal},
{TiDBStmtSummaryMaxSQLLength, "99999999999", true, ScopeGlobal},
}
for _, t := range tests {
_, err := ValidateSetSystemVar(v, t.key, t.value, t.scope)
if t.error {
c.Assert(err, NotNil, Commentf("%v got err=%v", t, err))
} else {
c.Assert(err, IsNil, Commentf("%v got err=%v", t, err))
}
}
}