827 lines
29 KiB
Go
827 lines
29 KiB
Go
// Copyright 2015 PingCAP, Inc.
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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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package variable
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import (
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"encoding/json"
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"fmt"
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"math"
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"strconv"
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"sync/atomic"
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"testing"
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"github.com/pingcap/tidb/config"
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"github.com/pingcap/tidb/parser/mysql"
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"github.com/pingcap/tidb/parser/terror"
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"github.com/stretchr/testify/require"
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)
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func TestSQLSelectLimit(t *testing.T) {
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sv := GetSysVar(SQLSelectLimit)
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vars := NewSessionVars()
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val, err := sv.Validate(vars, "-10", ScopeSession)
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require.NoError(t, err) // it has autoconvert out of range.
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require.Equal(t, "0", val)
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val, err = sv.Validate(vars, "9999", ScopeSession)
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require.NoError(t, err)
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require.Equal(t, "9999", val)
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require.Nil(t, sv.SetSessionFromHook(vars, "9999")) // sets
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require.Equal(t, uint64(9999), vars.SelectLimit)
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}
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func TestSQLModeVar(t *testing.T) {
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sv := GetSysVar(SQLModeVar)
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vars := NewSessionVars()
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val, err := sv.Validate(vars, "strict_trans_tabLES ", ScopeSession)
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require.NoError(t, err)
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require.Equal(t, "STRICT_TRANS_TABLES", val)
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_, err = sv.Validate(vars, "strict_trans_tabLES,nonsense_option", ScopeSession)
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require.Equal(t, "ERROR 1231 (42000): Variable 'sql_mode' can't be set to the value of 'NONSENSE_OPTION'", err.Error())
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val, err = sv.Validate(vars, "ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION", ScopeSession)
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require.NoError(t, err)
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require.Equal(t, "ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION", val)
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require.Nil(t, sv.SetSessionFromHook(vars, val)) // sets to strict from above
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require.True(t, vars.StrictSQLMode)
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sqlMode, err := mysql.GetSQLMode(val)
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require.NoError(t, err)
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require.Equal(t, sqlMode, vars.SQLMode)
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// Set it to non strict.
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val, err = sv.Validate(vars, "ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION", ScopeSession)
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require.NoError(t, err)
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require.Equal(t, "ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION", val)
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require.Nil(t, sv.SetSessionFromHook(vars, val)) // sets to non-strict from above
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require.False(t, vars.StrictSQLMode)
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sqlMode, err = mysql.GetSQLMode(val)
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require.NoError(t, err)
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require.Equal(t, sqlMode, vars.SQLMode)
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}
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func TestMaxExecutionTime(t *testing.T) {
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sv := GetSysVar(MaxExecutionTime)
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vars := NewSessionVars()
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val, err := sv.Validate(vars, "-10", ScopeSession)
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require.NoError(t, err) // it has autoconvert out of range.
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require.Equal(t, "0", val)
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val, err = sv.Validate(vars, "99999", ScopeSession)
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require.NoError(t, err) // it has autoconvert out of range.
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require.Equal(t, "99999", val)
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require.Nil(t, sv.SetSessionFromHook(vars, "99999")) // sets
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require.Equal(t, uint64(99999), vars.MaxExecutionTime)
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}
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func TestCollationServer(t *testing.T) {
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sv := GetSysVar(CollationServer)
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vars := NewSessionVars()
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val, err := sv.Validate(vars, "LATIN1_bin", ScopeSession)
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require.NoError(t, err)
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require.Equal(t, "latin1_bin", val) // test normalization
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_, err = sv.Validate(vars, "BOGUSCOLLation", ScopeSession)
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require.Equal(t, "[ddl:1273]Unknown collation: 'BOGUSCOLLation'", err.Error())
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require.Nil(t, sv.SetSessionFromHook(vars, "latin1_bin"))
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require.Equal(t, "latin1", vars.systems[CharacterSetServer]) // check it also changes charset.
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require.Nil(t, sv.SetSessionFromHook(vars, "utf8mb4_bin"))
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require.Equal(t, "utf8mb4", vars.systems[CharacterSetServer]) // check it also changes charset.
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}
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func TestTimeZone(t *testing.T) {
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sv := GetSysVar(TimeZone)
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vars := NewSessionVars()
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// TiDB uses the Golang TZ library, so TZs are case-sensitive.
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// Unfortunately this is not strictly MySQL compatible. i.e.
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// This should not fail:
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// val, err := sv.Validate(vars, "America/EDMONTON", ScopeSession)
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// See: https://github.com/pingcap/tidb/issues/8087
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val, err := sv.Validate(vars, "America/Edmonton", ScopeSession)
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require.NoError(t, err)
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require.Equal(t, "America/Edmonton", val)
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val, err = sv.Validate(vars, "+10:00", ScopeSession)
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require.NoError(t, err)
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require.Equal(t, "+10:00", val)
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val, err = sv.Validate(vars, "UTC", ScopeSession)
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require.NoError(t, err)
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require.Equal(t, "UTC", val)
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val, err = sv.Validate(vars, "+00:00", ScopeSession)
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require.NoError(t, err)
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require.Equal(t, "+00:00", val)
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require.Nil(t, sv.SetSessionFromHook(vars, "UTC")) // sets
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tz, err := parseTimeZone("UTC")
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require.NoError(t, err)
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require.Equal(t, tz, vars.TimeZone)
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}
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func TestTxnIsolation(t *testing.T) {
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sv := GetSysVar(TxnIsolation)
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vars := NewSessionVars()
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_, err := sv.Validate(vars, "on", ScopeSession)
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require.Equal(t, "[variable:1231]Variable 'tx_isolation' can't be set to the value of 'on'", err.Error())
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val, err := sv.Validate(vars, "read-COMMitted", ScopeSession)
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require.NoError(t, err)
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require.Equal(t, "READ-COMMITTED", val)
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_, err = sv.Validate(vars, "Serializable", ScopeSession)
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require.Equal(t, "[variable:8048]The isolation level 'SERIALIZABLE' is not supported. Set tidb_skip_isolation_level_check=1 to skip this error", err.Error())
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_, err = sv.Validate(vars, "read-uncommitted", ScopeSession)
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require.Equal(t, "[variable:8048]The isolation level 'READ-UNCOMMITTED' is not supported. Set tidb_skip_isolation_level_check=1 to skip this error", err.Error())
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// Enable global skip isolation check doesn't affect current session
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require.Nil(t, GetSysVar(TiDBSkipIsolationLevelCheck).SetGlobalFromHook(vars, "ON", true))
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_, err = sv.Validate(vars, "Serializable", ScopeSession)
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require.Equal(t, "[variable:8048]The isolation level 'SERIALIZABLE' is not supported. Set tidb_skip_isolation_level_check=1 to skip this error", err.Error())
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// Enable session skip isolation check
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require.Nil(t, GetSysVar(TiDBSkipIsolationLevelCheck).SetSessionFromHook(vars, "ON"))
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val, err = sv.Validate(vars, "Serializable", ScopeSession)
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require.NoError(t, err)
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require.Equal(t, "SERIALIZABLE", val)
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// Init TiDBSkipIsolationLevelCheck like what loadCommonGlobalVariables does
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vars = NewSessionVars()
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require.NoError(t, vars.SetSystemVarWithRelaxedValidation(TiDBSkipIsolationLevelCheck, "1"))
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val, err = sv.Validate(vars, "Serializable", ScopeSession)
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require.NoError(t, err)
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require.Equal(t, "SERIALIZABLE", val)
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}
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func TestTiDBMultiStatementMode(t *testing.T) {
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sv := GetSysVar(TiDBMultiStatementMode)
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vars := NewSessionVars()
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val, err := sv.Validate(vars, "on", ScopeSession)
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require.NoError(t, err)
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require.Equal(t, "ON", val)
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require.Nil(t, sv.SetSessionFromHook(vars, val))
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require.Equal(t, 1, vars.MultiStatementMode)
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val, err = sv.Validate(vars, "0", ScopeSession)
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require.NoError(t, err)
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require.Equal(t, "OFF", val)
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require.Nil(t, sv.SetSessionFromHook(vars, val))
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require.Equal(t, 0, vars.MultiStatementMode)
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val, err = sv.Validate(vars, "Warn", ScopeSession)
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require.NoError(t, err)
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require.Equal(t, "WARN", val)
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require.Nil(t, sv.SetSessionFromHook(vars, val))
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require.Equal(t, 2, vars.MultiStatementMode)
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}
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func TestReadOnlyNoop(t *testing.T) {
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vars := NewSessionVars()
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mock := NewMockGlobalAccessor4Tests()
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mock.SessionVars = vars
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vars.GlobalVarsAccessor = mock
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noopFuncs := GetSysVar(TiDBEnableNoopFuncs)
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// For session scope
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for _, name := range []string{TxReadOnly, TransactionReadOnly} {
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sv := GetSysVar(name)
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val, err := sv.Validate(vars, "on", ScopeSession)
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require.Equal(t, "[variable:1235]function READ ONLY has only noop implementation in tidb now, use tidb_enable_noop_functions to enable these functions", err.Error())
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require.Equal(t, "OFF", val)
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require.NoError(t, noopFuncs.SetSessionFromHook(vars, "ON"))
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_, err = sv.Validate(vars, "on", ScopeSession)
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require.NoError(t, err)
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require.NoError(t, noopFuncs.SetSessionFromHook(vars, "OFF")) // restore default.
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}
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// For global scope
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for _, name := range []string{TxReadOnly, TransactionReadOnly, OfflineMode, SuperReadOnly, ReadOnly} {
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sv := GetSysVar(name)
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val, err := sv.Validate(vars, "on", ScopeGlobal)
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if name == OfflineMode {
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require.Equal(t, "[variable:1235]function OFFLINE MODE has only noop implementation in tidb now, use tidb_enable_noop_functions to enable these functions", err.Error())
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} else {
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require.Equal(t, "[variable:1235]function READ ONLY has only noop implementation in tidb now, use tidb_enable_noop_functions to enable these functions", err.Error())
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}
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require.Equal(t, "OFF", val)
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require.NoError(t, vars.GlobalVarsAccessor.SetGlobalSysVar(TiDBEnableNoopFuncs, "ON"))
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_, err = sv.Validate(vars, "on", ScopeGlobal)
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require.NoError(t, err)
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require.NoError(t, vars.GlobalVarsAccessor.SetGlobalSysVar(TiDBEnableNoopFuncs, "OFF"))
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}
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}
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func TestSkipInit(t *testing.T) {
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sv := SysVar{Scope: ScopeGlobal, Name: "skipinit1", Value: On, Type: TypeBool}
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require.True(t, sv.SkipInit())
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sv = SysVar{Scope: ScopeGlobal | ScopeSession, Name: "skipinit1", Value: On, Type: TypeBool}
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require.False(t, sv.SkipInit())
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sv = SysVar{Scope: ScopeSession, Name: "skipinit1", Value: On, Type: TypeBool}
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require.False(t, sv.SkipInit())
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sv = SysVar{Scope: ScopeSession, Name: "skipinit1", Value: On, Type: TypeBool, skipInit: true}
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require.True(t, sv.SkipInit())
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}
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func TestSessionGetterFuncs(t *testing.T) {
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vars := NewSessionVars()
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val, err := vars.GetSessionOrGlobalSystemVar(TiDBCurrentTS)
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require.NoError(t, err)
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require.Equal(t, fmt.Sprintf("%d", vars.TxnCtx.StartTS), val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBLastTxnInfo)
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require.NoError(t, err)
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require.Equal(t, vars.LastTxnInfo, val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBLastQueryInfo)
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require.NoError(t, err)
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info, err := json.Marshal(vars.LastQueryInfo)
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require.NoError(t, err)
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require.Equal(t, string(info), val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBFoundInPlanCache)
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require.NoError(t, err)
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require.Equal(t, BoolToOnOff(vars.PrevFoundInPlanCache), val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBFoundInBinding)
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require.NoError(t, err)
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require.Equal(t, BoolToOnOff(vars.PrevFoundInBinding), val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBTxnScope)
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require.NoError(t, err)
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require.Equal(t, vars.TxnScope.GetVarValue(), val)
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}
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func TestInstanceScopedVars(t *testing.T) {
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vars := NewSessionVars()
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val, err := vars.GetSessionOrGlobalSystemVar(TiDBGeneralLog)
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require.NoError(t, err)
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require.Equal(t, BoolToOnOff(ProcessGeneralLog.Load()), val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBPProfSQLCPU)
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require.NoError(t, err)
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expected := "0"
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if EnablePProfSQLCPU.Load() {
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expected = "1"
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}
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require.Equal(t, expected, val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBExpensiveQueryTimeThreshold)
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require.NoError(t, err)
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require.Equal(t, fmt.Sprintf("%d", atomic.LoadUint64(&ExpensiveQueryTimeThreshold)), val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBMemoryUsageAlarmRatio)
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require.NoError(t, err)
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require.Equal(t, fmt.Sprintf("%g", MemoryUsageAlarmRatio.Load()), val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBForcePriority)
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require.NoError(t, err)
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require.Equal(t, mysql.Priority2Str[mysql.PriorityEnum(atomic.LoadInt32(&ForcePriority))], val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBDDLSlowOprThreshold)
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require.NoError(t, err)
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require.Equal(t, strconv.FormatUint(uint64(atomic.LoadUint32(&DDLSlowOprThreshold)), 10), val)
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val, err = vars.GetSessionOrGlobalSystemVar(PluginDir)
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require.NoError(t, err)
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require.Equal(t, config.GetGlobalConfig().Instance.PluginDir, val)
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val, err = vars.GetSessionOrGlobalSystemVar(PluginLoad)
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require.NoError(t, err)
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require.Equal(t, config.GetGlobalConfig().Instance.PluginLoad, val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBSlowLogThreshold)
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require.NoError(t, err)
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require.Equal(t, strconv.FormatUint(atomic.LoadUint64(&config.GetGlobalConfig().Instance.SlowThreshold), 10), val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBRecordPlanInSlowLog)
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require.NoError(t, err)
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enabled := atomic.LoadUint32(&config.GetGlobalConfig().Instance.RecordPlanInSlowLog) == 1
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require.Equal(t, BoolToOnOff(enabled), val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBEnableSlowLog)
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require.NoError(t, err)
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require.Equal(t, BoolToOnOff(config.GetGlobalConfig().Instance.EnableSlowLog.Load()), val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBCheckMb4ValueInUTF8)
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require.NoError(t, err)
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require.Equal(t, BoolToOnOff(config.GetGlobalConfig().Instance.CheckMb4ValueInUTF8.Load()), val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBEnableCollectExecutionInfo)
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require.NoError(t, err)
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require.Equal(t, BoolToOnOff(config.GetGlobalConfig().Instance.EnableCollectExecutionInfo), val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBConfig)
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require.NoError(t, err)
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expected, err = config.GetJSONConfig()
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require.NoError(t, err)
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require.Equal(t, expected, val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBLogFileMaxDays)
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require.NoError(t, err)
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require.Equal(t, fmt.Sprint(GlobalLogMaxDays.Load()), val)
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val, err = vars.GetSessionOrGlobalSystemVar(TiDBRCReadCheckTS)
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require.NoError(t, err)
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require.Equal(t, BoolToOnOff(EnableRCReadCheckTS.Load()), val)
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}
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func TestSecureAuth(t *testing.T) {
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sv := GetSysVar(SecureAuth)
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vars := NewSessionVars()
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_, err := sv.Validate(vars, "OFF", ScopeGlobal)
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require.Equal(t, "[variable:1231]Variable 'secure_auth' can't be set to the value of 'OFF'", err.Error())
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val, err := sv.Validate(vars, "ON", ScopeGlobal)
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require.NoError(t, err)
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require.Equal(t, "ON", val)
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}
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func TestTiDBReplicaRead(t *testing.T) {
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sv := GetSysVar(TiDBReplicaRead)
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vars := NewSessionVars()
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val, err := sv.Validate(vars, "follower", ScopeGlobal)
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require.Equal(t, val, "follower")
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require.NoError(t, err)
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}
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func TestSQLAutoIsNull(t *testing.T) {
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svSQL, svNoop := GetSysVar(SQLAutoIsNull), GetSysVar(TiDBEnableNoopFuncs)
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vars := NewSessionVars()
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vars.GlobalVarsAccessor = NewMockGlobalAccessor4Tests()
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_, err := svSQL.Validate(vars, "ON", ScopeSession)
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require.True(t, terror.ErrorEqual(err, ErrFunctionsNoopImpl))
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// change tidb_enable_noop_functions to 1, it will success
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require.NoError(t, svNoop.SetSessionFromHook(vars, "ON"))
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_, err = svSQL.Validate(vars, "ON", ScopeSession)
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require.NoError(t, err)
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require.NoError(t, svSQL.SetSessionFromHook(vars, "ON"))
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res, ok := vars.GetSystemVar(SQLAutoIsNull)
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require.True(t, ok)
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require.Equal(t, "ON", res)
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// restore tidb_enable_noop_functions to 0 failed, as sql_auto_is_null is 1
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_, err = svNoop.Validate(vars, "OFF", ScopeSession)
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require.True(t, terror.ErrorEqual(err, errValueNotSupportedWhen))
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// after set sql_auto_is_null to 0, restore success
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require.NoError(t, svSQL.SetSessionFromHook(vars, "OFF"))
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require.NoError(t, svNoop.SetSessionFromHook(vars, "OFF"))
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// Only test validate as MockGlobalAccessor do not support SetGlobalSysVar
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_, err = svSQL.Validate(vars, "ON", ScopeGlobal)
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require.True(t, terror.ErrorEqual(err, ErrFunctionsNoopImpl))
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}
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func TestLastInsertID(t *testing.T) {
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vars := NewSessionVars()
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val, err := vars.GetSessionOrGlobalSystemVar(LastInsertID)
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require.NoError(t, err)
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require.Equal(t, val, "0")
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vars.StmtCtx.PrevLastInsertID = 21
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val, err = vars.GetSessionOrGlobalSystemVar(LastInsertID)
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require.NoError(t, err)
|
|
require.Equal(t, val, "21")
|
|
}
|
|
|
|
func TestTimestamp(t *testing.T) {
|
|
vars := NewSessionVars()
|
|
val, err := vars.GetSessionOrGlobalSystemVar(Timestamp)
|
|
require.NoError(t, err)
|
|
require.NotEqual(t, "", val)
|
|
|
|
vars.systems[Timestamp] = "10"
|
|
val, err = vars.GetSessionOrGlobalSystemVar(Timestamp)
|
|
require.NoError(t, err)
|
|
require.Equal(t, "10", val)
|
|
|
|
vars.systems[Timestamp] = "0" // set to default
|
|
val, err = vars.GetSessionOrGlobalSystemVar(Timestamp)
|
|
require.NoError(t, err)
|
|
require.NotEqual(t, "", val)
|
|
require.NotEqual(t, "10", val)
|
|
|
|
// Test validating a value that less than the minimum one.
|
|
sv := GetSysVar(Timestamp)
|
|
_, err = sv.Validate(vars, "-5", ScopeSession)
|
|
require.NoError(t, err)
|
|
warn := vars.StmtCtx.GetWarnings()[0].Err
|
|
require.Equal(t, "[variable:1292]Truncated incorrect timestamp value: '-5'", warn.Error())
|
|
|
|
// Test validating values that larger than the maximum one.
|
|
_, err = sv.Validate(vars, "3147483698", ScopeSession)
|
|
require.Equal(t, "[variable:1231]Variable 'timestamp' can't be set to the value of '3147483698'", err.Error())
|
|
|
|
_, err = sv.Validate(vars, "2147483648", ScopeSession)
|
|
require.Equal(t, "[variable:1231]Variable 'timestamp' can't be set to the value of '2147483648'", err.Error())
|
|
|
|
// Test validating the maximum value.
|
|
_, err = sv.Validate(vars, "2147483647", ScopeSession)
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
func TestIdentity(t *testing.T) {
|
|
vars := NewSessionVars()
|
|
val, err := vars.GetSessionOrGlobalSystemVar(Identity)
|
|
require.NoError(t, err)
|
|
require.Equal(t, val, "0")
|
|
|
|
vars.StmtCtx.PrevLastInsertID = 21
|
|
val, err = vars.GetSessionOrGlobalSystemVar(Identity)
|
|
require.NoError(t, err)
|
|
require.Equal(t, val, "21")
|
|
}
|
|
|
|
func TestLcTimeNamesReadOnly(t *testing.T) {
|
|
sv := GetSysVar("lc_time_names")
|
|
vars := NewSessionVars()
|
|
vars.GlobalVarsAccessor = NewMockGlobalAccessor4Tests()
|
|
_, err := sv.Validate(vars, "newvalue", ScopeGlobal)
|
|
require.Error(t, err)
|
|
}
|
|
|
|
func TestLcMessagesReadOnly(t *testing.T) {
|
|
sv := GetSysVar("lc_messages")
|
|
vars := NewSessionVars()
|
|
vars.GlobalVarsAccessor = NewMockGlobalAccessor4Tests()
|
|
_, err := sv.Validate(vars, "newvalue", ScopeGlobal)
|
|
require.Error(t, err)
|
|
}
|
|
|
|
func TestDDLWorkers(t *testing.T) {
|
|
svWorkerCount, svBatchSize := GetSysVar(TiDBDDLReorgWorkerCount), GetSysVar(TiDBDDLReorgBatchSize)
|
|
vars := NewSessionVars()
|
|
vars.GlobalVarsAccessor = NewMockGlobalAccessor4Tests()
|
|
|
|
val, err := svWorkerCount.Validate(vars, "-100", ScopeGlobal)
|
|
require.NoError(t, err)
|
|
require.Equal(t, val, "1") // converts it to min value
|
|
val, err = svWorkerCount.Validate(vars, "1234", ScopeGlobal)
|
|
require.NoError(t, err)
|
|
require.Equal(t, val, "256") // converts it to max value
|
|
val, err = svWorkerCount.Validate(vars, "100", ScopeGlobal)
|
|
require.NoError(t, err)
|
|
require.Equal(t, val, "100") // unchanged
|
|
|
|
val, err = svBatchSize.Validate(vars, "10", ScopeGlobal)
|
|
require.NoError(t, err)
|
|
require.Equal(t, val, fmt.Sprint(MinDDLReorgBatchSize)) // converts it to min value
|
|
val, err = svBatchSize.Validate(vars, "999999", ScopeGlobal)
|
|
require.NoError(t, err)
|
|
require.Equal(t, val, fmt.Sprint(MaxDDLReorgBatchSize)) // converts it to max value
|
|
val, err = svBatchSize.Validate(vars, "100", ScopeGlobal)
|
|
require.NoError(t, err)
|
|
require.Equal(t, val, "100") // unchanged
|
|
}
|
|
|
|
func TestDefaultCharsetAndCollation(t *testing.T) {
|
|
vars := NewSessionVars()
|
|
val, err := vars.GetSessionOrGlobalSystemVar(CharacterSetConnection)
|
|
require.NoError(t, err)
|
|
require.Equal(t, val, mysql.DefaultCharset)
|
|
val, err = vars.GetSessionOrGlobalSystemVar(CollationConnection)
|
|
require.NoError(t, err)
|
|
require.Equal(t, val, mysql.DefaultCollationName)
|
|
}
|
|
|
|
func TestIndexMergeSwitcher(t *testing.T) {
|
|
vars := NewSessionVars()
|
|
vars.GlobalVarsAccessor = NewMockGlobalAccessor4Tests()
|
|
val, err := vars.GetSessionOrGlobalSystemVar(TiDBEnableIndexMerge)
|
|
require.NoError(t, err)
|
|
require.Equal(t, DefTiDBEnableIndexMerge, true)
|
|
require.Equal(t, BoolToOnOff(DefTiDBEnableIndexMerge), val)
|
|
}
|
|
|
|
func TestNetBufferLength(t *testing.T) {
|
|
netBufferLength := GetSysVar(NetBufferLength)
|
|
vars := NewSessionVars()
|
|
vars.GlobalVarsAccessor = NewMockGlobalAccessor4Tests()
|
|
|
|
val, err := netBufferLength.Validate(vars, "1", ScopeGlobal)
|
|
require.NoError(t, err)
|
|
require.Equal(t, "1024", val) // converts it to min value
|
|
val, err = netBufferLength.Validate(vars, "10485760", ScopeGlobal)
|
|
require.NoError(t, err)
|
|
require.Equal(t, "1048576", val) // converts it to max value
|
|
val, err = netBufferLength.Validate(vars, "524288", ScopeGlobal)
|
|
require.NoError(t, err)
|
|
require.Equal(t, "524288", val) // unchanged
|
|
}
|
|
|
|
func TestTiDBBatchPendingTiFlashCount(t *testing.T) {
|
|
sv := GetSysVar(TiDBBatchPendingTiFlashCount)
|
|
vars := NewSessionVars()
|
|
val, err := sv.Validate(vars, "-10", ScopeSession)
|
|
require.NoError(t, err) // it has autoconvert out of range.
|
|
require.Equal(t, "0", val)
|
|
|
|
val, err = sv.Validate(vars, "9999", ScopeSession)
|
|
require.NoError(t, err)
|
|
require.Equal(t, "9999", val)
|
|
|
|
_, err = sv.Validate(vars, "1.5", ScopeSession)
|
|
require.Error(t, err)
|
|
require.EqualError(t, err, "[variable:1232]Incorrect argument type to variable 'tidb_batch_pending_tiflash_count'")
|
|
}
|
|
|
|
func TestTiDBMemQuotaQuery(t *testing.T) {
|
|
sv := GetSysVar(TiDBMemQuotaQuery)
|
|
vars := NewSessionVars()
|
|
|
|
for _, scope := range []ScopeFlag{ScopeGlobal, ScopeSession} {
|
|
newVal := 32 * 1024 * 1024
|
|
val, err := sv.Validate(vars, fmt.Sprintf("%d", newVal), scope)
|
|
require.Equal(t, val, "33554432")
|
|
require.NoError(t, err)
|
|
|
|
// min value out of range
|
|
newVal = -2
|
|
expected := -1
|
|
val, err = sv.Validate(vars, fmt.Sprintf("%d", newVal), scope)
|
|
// expected to truncate
|
|
require.Equal(t, val, fmt.Sprintf("%d", expected))
|
|
require.NoError(t, err)
|
|
}
|
|
}
|
|
|
|
func TestTiDBQueryLogMaxLen(t *testing.T) {
|
|
sv := GetSysVar(TiDBQueryLogMaxLen)
|
|
vars := NewSessionVars()
|
|
|
|
newVal := 32 * 1024 * 1024
|
|
val, err := sv.Validate(vars, fmt.Sprintf("%d", newVal), ScopeGlobal)
|
|
require.Equal(t, val, "33554432")
|
|
require.NoError(t, err)
|
|
|
|
// out of range
|
|
newVal = 1073741825
|
|
expected := 1073741824
|
|
val, err = sv.Validate(vars, fmt.Sprintf("%d", newVal), ScopeGlobal)
|
|
// expected to truncate
|
|
require.Equal(t, val, fmt.Sprintf("%d", expected))
|
|
require.NoError(t, err)
|
|
|
|
// min value out of range
|
|
newVal = -2
|
|
expected = 0
|
|
val, err = sv.Validate(vars, fmt.Sprintf("%d", newVal), ScopeGlobal)
|
|
// expected to set to min value
|
|
require.Equal(t, val, fmt.Sprintf("%d", expected))
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
func TestTiDBCommitterConcurrency(t *testing.T) {
|
|
sv := GetSysVar(TiDBCommitterConcurrency)
|
|
vars := NewSessionVars()
|
|
|
|
newVal := 1024
|
|
val, err := sv.Validate(vars, fmt.Sprintf("%d", newVal), ScopeGlobal)
|
|
require.Equal(t, val, "1024")
|
|
require.NoError(t, err)
|
|
|
|
// out of range
|
|
newVal = 10001
|
|
expected := 10000
|
|
val, err = sv.Validate(vars, fmt.Sprintf("%d", newVal), ScopeGlobal)
|
|
// expected to truncate
|
|
require.Equal(t, val, fmt.Sprintf("%d", expected))
|
|
require.NoError(t, err)
|
|
|
|
// min value out of range
|
|
newVal = 0
|
|
expected = 1
|
|
val, err = sv.Validate(vars, fmt.Sprintf("%d", newVal), ScopeGlobal)
|
|
// expected to set to min value
|
|
require.Equal(t, val, fmt.Sprintf("%d", expected))
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
func TestTiDBDDLFlashbackConcurrency(t *testing.T) {
|
|
sv := GetSysVar(TiDBDDLFlashbackConcurrency)
|
|
vars := NewSessionVars()
|
|
|
|
newVal := 128
|
|
val, err := sv.Validate(vars, fmt.Sprintf("%d", newVal), ScopeGlobal)
|
|
require.Equal(t, val, "128")
|
|
require.NoError(t, err)
|
|
|
|
// out of range
|
|
newVal = MaxConfigurableConcurrency + 1
|
|
expected := MaxConfigurableConcurrency
|
|
val, err = sv.Validate(vars, fmt.Sprintf("%d", newVal), ScopeGlobal)
|
|
// expected to truncate
|
|
require.Equal(t, val, fmt.Sprintf("%d", expected))
|
|
require.NoError(t, err)
|
|
|
|
// min value out of range
|
|
newVal = 0
|
|
expected = 1
|
|
val, err = sv.Validate(vars, fmt.Sprintf("%d", newVal), ScopeGlobal)
|
|
// expected to set to min value
|
|
require.Equal(t, val, fmt.Sprintf("%d", expected))
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
func TestDefaultMemoryDebugModeValue(t *testing.T) {
|
|
vars := NewSessionVars()
|
|
val, err := vars.GetSessionOrGlobalSystemVar(TiDBMemoryDebugModeMinHeapInUse)
|
|
require.NoError(t, err)
|
|
require.Equal(t, val, "0")
|
|
val, err = vars.GetSessionOrGlobalSystemVar(TiDBMemoryDebugModeAlarmRatio)
|
|
require.NoError(t, err)
|
|
require.Equal(t, val, "0")
|
|
}
|
|
|
|
func TestDefaultPartitionPruneMode(t *testing.T) {
|
|
vars := NewSessionVars()
|
|
mock := NewMockGlobalAccessor4Tests()
|
|
mock.SessionVars = vars
|
|
vars.GlobalVarsAccessor = mock
|
|
val, err := vars.GetSessionOrGlobalSystemVar(TiDBPartitionPruneMode)
|
|
require.NoError(t, err)
|
|
require.Equal(t, "dynamic", val)
|
|
require.Equal(t, "dynamic", DefTiDBPartitionPruneMode)
|
|
}
|
|
|
|
func TestSetTIDBFastDDL(t *testing.T) {
|
|
vars := NewSessionVars()
|
|
mock := NewMockGlobalAccessor4Tests()
|
|
mock.SessionVars = vars
|
|
vars.GlobalVarsAccessor = mock
|
|
fastDDL := GetSysVar(TiDBDDLEnableFastReorg)
|
|
|
|
// Default off
|
|
require.Equal(t, fastDDL.Value, Off)
|
|
|
|
// Set to On
|
|
err := mock.SetGlobalSysVar(TiDBDDLEnableFastReorg, On)
|
|
require.NoError(t, err)
|
|
val, err1 := mock.GetGlobalSysVar(TiDBDDLEnableFastReorg)
|
|
require.NoError(t, err1)
|
|
require.Equal(t, On, val)
|
|
|
|
// Set to off
|
|
err = mock.SetGlobalSysVar(TiDBDDLEnableFastReorg, Off)
|
|
require.NoError(t, err)
|
|
val, err1 = mock.GetGlobalSysVar(TiDBDDLEnableFastReorg)
|
|
require.NoError(t, err1)
|
|
require.Equal(t, Off, val)
|
|
}
|
|
|
|
func TestSetTIDBDiskQuota(t *testing.T) {
|
|
vars := NewSessionVars()
|
|
mock := NewMockGlobalAccessor4Tests()
|
|
mock.SessionVars = vars
|
|
vars.GlobalVarsAccessor = mock
|
|
diskQuota := GetSysVar(TiDBDDLDiskQuota)
|
|
var (
|
|
gb int64 = 1024 * 1024 * 1024
|
|
pb int64 = 1024 * 1024 * 1024 * 1024 * 1024
|
|
err error
|
|
val string
|
|
)
|
|
// Default 100 GB
|
|
require.Equal(t, diskQuota.Value, strconv.FormatInt(100*gb, 10))
|
|
|
|
// MinValue is 100 GB, set to 50 Gb is not allowed
|
|
err = mock.SetGlobalSysVar(TiDBDDLDiskQuota, strconv.FormatInt(50*gb, 10))
|
|
require.NoError(t, err)
|
|
val, err = mock.GetGlobalSysVar(TiDBDDLDiskQuota)
|
|
require.NoError(t, err)
|
|
require.Equal(t, strconv.FormatInt(100*gb, 10), val)
|
|
|
|
// Set to 100 GB
|
|
err = mock.SetGlobalSysVar(TiDBDDLDiskQuota, strconv.FormatInt(100*gb, 10))
|
|
require.NoError(t, err)
|
|
val, err = mock.GetGlobalSysVar(TiDBDDLDiskQuota)
|
|
require.NoError(t, err)
|
|
require.Equal(t, strconv.FormatInt(100*gb, 10), val)
|
|
|
|
// Set to 200 GB
|
|
err = mock.SetGlobalSysVar(TiDBDDLDiskQuota, strconv.FormatInt(200*gb, 10))
|
|
require.NoError(t, err)
|
|
val, err = mock.GetGlobalSysVar(TiDBDDLDiskQuota)
|
|
require.NoError(t, err)
|
|
require.Equal(t, strconv.FormatInt(200*gb, 10), val)
|
|
|
|
// Set to 1 Pb
|
|
err = mock.SetGlobalSysVar(TiDBDDLDiskQuota, strconv.FormatInt(pb, 10))
|
|
require.NoError(t, err)
|
|
val, err = mock.GetGlobalSysVar(TiDBDDLDiskQuota)
|
|
require.NoError(t, err)
|
|
require.Equal(t, strconv.FormatInt(pb, 10), val)
|
|
|
|
// MaxValue is 1 PB, set to 2 Pb is not allowed, it will set back to 1 PB max allowed value.
|
|
err = mock.SetGlobalSysVar(TiDBDDLDiskQuota, strconv.FormatInt(2*pb, 10))
|
|
require.NoError(t, err)
|
|
val, err = mock.GetGlobalSysVar(TiDBDDLDiskQuota)
|
|
require.NoError(t, err)
|
|
require.Equal(t, strconv.FormatInt(pb, 10), val)
|
|
}
|
|
|
|
func TestTiDBServerMemoryLimit(t *testing.T) {
|
|
vars := NewSessionVars()
|
|
mock := NewMockGlobalAccessor4Tests()
|
|
mock.SessionVars = vars
|
|
vars.GlobalVarsAccessor = mock
|
|
var (
|
|
mb uint64 = 1 << 20
|
|
err error
|
|
val string
|
|
)
|
|
// Test tidb_server_memory_limit
|
|
serverMemoryLimit := GetSysVar(TiDBServerMemoryLimit)
|
|
// Check default value
|
|
require.Equal(t, serverMemoryLimit.Value, strconv.FormatUint(DefTiDBServerMemoryLimit, 10))
|
|
|
|
// MinValue is 512 MB
|
|
err = mock.SetGlobalSysVar(TiDBServerMemoryLimit, strconv.FormatUint(100*mb, 10))
|
|
require.NoError(t, err)
|
|
val, err = mock.GetGlobalSysVar(TiDBServerMemoryLimit)
|
|
require.NoError(t, err)
|
|
require.Equal(t, strconv.FormatUint(512*mb, 10), val)
|
|
|
|
// Test Close
|
|
err = mock.SetGlobalSysVar(TiDBServerMemoryLimit, strconv.FormatUint(0, 10))
|
|
require.NoError(t, err)
|
|
val, err = mock.GetGlobalSysVar(TiDBServerMemoryLimit)
|
|
require.NoError(t, err)
|
|
require.Equal(t, strconv.FormatUint(0, 10), val)
|
|
|
|
// Test MaxValue
|
|
err = mock.SetGlobalSysVar(TiDBServerMemoryLimit, strconv.FormatUint(math.MaxUint64, 10))
|
|
require.NoError(t, err)
|
|
val, err = mock.GetGlobalSysVar(TiDBServerMemoryLimit)
|
|
require.NoError(t, err)
|
|
require.Equal(t, strconv.FormatUint(math.MaxUint64, 10), val)
|
|
|
|
// Test Normal Value
|
|
err = mock.SetGlobalSysVar(TiDBServerMemoryLimit, strconv.FormatUint(1024*mb, 10))
|
|
require.NoError(t, err)
|
|
val, err = mock.GetGlobalSysVar(TiDBServerMemoryLimit)
|
|
require.NoError(t, err)
|
|
require.Equal(t, strconv.FormatUint(1024*mb, 10), val)
|
|
|
|
// Test tidb_server_memory_limit_sess_min_size
|
|
serverMemoryLimitSessMinSize := GetSysVar(TiDBServerMemoryLimitSessMinSize)
|
|
// Check default value
|
|
require.Equal(t, serverMemoryLimitSessMinSize.Value, strconv.FormatUint(DefTiDBServerMemoryLimitSessMinSize, 10))
|
|
|
|
// MinValue is 128 Bytes
|
|
err = mock.SetGlobalSysVar(TiDBServerMemoryLimitSessMinSize, strconv.FormatUint(100, 10))
|
|
require.NoError(t, err)
|
|
val, err = mock.GetGlobalSysVar(TiDBServerMemoryLimitSessMinSize)
|
|
require.NoError(t, err)
|
|
require.Equal(t, strconv.FormatUint(128, 10), val)
|
|
|
|
// Test Close
|
|
err = mock.SetGlobalSysVar(TiDBServerMemoryLimitSessMinSize, strconv.FormatUint(0, 10))
|
|
require.NoError(t, err)
|
|
val, err = mock.GetGlobalSysVar(TiDBServerMemoryLimitSessMinSize)
|
|
require.NoError(t, err)
|
|
require.Equal(t, strconv.FormatUint(0, 10), val)
|
|
|
|
// Test MaxValue
|
|
err = mock.SetGlobalSysVar(TiDBServerMemoryLimitSessMinSize, strconv.FormatUint(math.MaxUint64, 10))
|
|
require.NoError(t, err)
|
|
val, err = mock.GetGlobalSysVar(TiDBServerMemoryLimitSessMinSize)
|
|
require.NoError(t, err)
|
|
require.Equal(t, strconv.FormatUint(math.MaxUint64, 10), val)
|
|
|
|
// Test Normal Value
|
|
err = mock.SetGlobalSysVar(TiDBServerMemoryLimitSessMinSize, strconv.FormatUint(200*mb, 10))
|
|
require.NoError(t, err)
|
|
val, err = mock.GetGlobalSysVar(TiDBServerMemoryLimitSessMinSize)
|
|
require.NoError(t, err)
|
|
require.Equal(t, strconv.FormatUint(200*mb, 10), val)
|
|
}
|