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query_plan_non_agg_test.go
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// Copyright (c) 2017-2018 Uber Technologies, 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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package broker
import (
"context"
"github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/stretchr/testify/mock"
"github.com/uber-go/tally"
shardMock "github.com/uber/aresdb/cluster/shard/mocks"
"github.com/uber/aresdb/cluster/topology"
topoMock "github.com/uber/aresdb/cluster/topology/mocks"
"github.com/uber/aresdb/common"
"github.com/uber/aresdb/datanode/client"
dataCliMock "github.com/uber/aresdb/datanode/client/mocks"
memCom "github.com/uber/aresdb/memstore/common"
metaCom "github.com/uber/aresdb/metastore/common"
queryCom "github.com/uber/aresdb/query/common"
"github.com/uber/aresdb/query/expr"
"github.com/uber/aresdb/utils"
"net/http/httptest"
)
var _ = ginkgo.Describe("non agg query plan", func() {
utils.Init(common.AresServerConfig{}, common.NewLoggerFactory().GetDefaultLogger(), common.NewLoggerFactory().GetDefaultLogger(), tally.NewTestScope("test", nil))
ginkgo.It("non agg should work happy path", func() {
q := queryCom.AQLQuery{
Table: "table1",
Measures: []queryCom.Measure{
{Expr: "1", ExprParsed: &expr.NumberLiteral{Int: 1, ExprType: expr.Unsigned}},
},
Dimensions: []queryCom.Dimension{
{Expr: "field1", ExprParsed: &expr.VarRef{TableID: 0, ColumnID: 0, Val: "field1"}},
{Expr: "field2", ExprParsed: &expr.VarRef{TableID: 0, ColumnID: 1, Val: "field2"}},
},
Limit: -1,
}
qc := QueryContext{
AQLQuery: &q,
IsNonAggregationQuery: true,
DimensionEnumReverseDicts: map[int][]string{
0: {"foo", "bar"},
},
Tables: []*memCom.TableSchema{
{
Schema: metaCom.Table{
IsFactTable: true,
},
},
},
}
mockTopo := topoMock.HealthTrackingDynamicTopoloy{}
mockMap := topoMock.Map{}
mockShardSet := shardMock.ShardSet{}
mockTopo.On("Get").Return(&mockMap)
mockMap.On("ShardSet").Return(&mockShardSet)
mockShardIds := []uint32{0, 1, 2, 3, 4, 5}
mockShardSet.On("AllIDs").Return(mockShardIds)
mockHost1 := &topoMock.Host{}
mockHost2 := &topoMock.Host{}
mockHost3 := &topoMock.Host{}
mockHosts := []topology.Host{
mockHost1,
mockHost2,
mockHost3,
}
mockTopo.On("MarkHostHealthy", mock.Anything).Return(nil).Times(3)
mockMap.On("Hosts").Return(mockHosts)
//host1: 0,1,2,3
//host2: 4,5,0,1
//host3: 2,3,4,5
mockMap.On("RouteShard", uint32(0)).Return([]topology.Host{mockHost1, mockHost2}, nil)
mockMap.On("RouteShard", uint32(1)).Return([]topology.Host{mockHost1, mockHost2}, nil)
mockMap.On("RouteShard", uint32(2)).Return([]topology.Host{mockHost1, mockHost3}, nil)
mockMap.On("RouteShard", uint32(3)).Return([]topology.Host{mockHost1, mockHost3}, nil)
mockMap.On("RouteShard", uint32(4)).Return([]topology.Host{mockHost2, mockHost3}, nil)
mockMap.On("RouteShard", uint32(5)).Return([]topology.Host{mockHost2, mockHost3}, nil)
mockDatanodeCli := dataCliMock.DataNodeQueryClient{}
// test negative limit (no limit)
w := httptest.NewRecorder()
plan, err := NewNonAggQueryPlan(&qc, &mockTopo, &mockDatanodeCli)
Ω(err).Should(BeNil())
Ω(plan.nodes).Should(HaveLen(len(mockHosts)))
Ω(plan.headers).Should(Equal([]string{"field1", "field2"}))
bs := []byte(`["0","1"],["NULL","2"]`)
mockDatanodeCli.On("QueryRaw", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(bs, nil).Times(len(mockHosts))
Ω(plan.nodes[0].qc.AQLQuery.Shards).Should(HaveLen(2))
Ω(plan.nodes[1].qc.AQLQuery.Shards).Should(HaveLen(2))
err = plan.Execute(context.TODO(), w)
Ω(err).Should(BeNil())
Ω(w.Body.String()).Should(Equal(`{"headers":["field1","field2"],"matrixData":[["foo","1"],["NULL","2"],["foo","1"],["NULL","2"],["foo","1"],["NULL","2"]]}`))
// test limit no enough data
qc.AQLQuery.Limit = 3
w = httptest.NewRecorder()
plan, err = NewNonAggQueryPlan(&qc, &mockTopo, &mockDatanodeCli)
Ω(err).Should(BeNil())
bsEmpty := []byte(``)
mockDatanodeCli.On("QueryRaw", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(bs, nil).Once()
mockDatanodeCli.On("QueryRaw", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(bsEmpty, nil).Times(len(mockHosts) - 1)
mockTopo.On("MarkHostHealthy", mock.Anything).Return(nil).Times(3)
err = plan.Execute(context.TODO(), w)
Ω(err).Should(BeNil())
Ω(w.Body.String()).Should(Equal(`{"headers":["field1","field2"],"matrixData":[["foo","1"],["NULL","2"]]}`))
// test limit with enough data 1
qc.AQLQuery.Limit = 3
w = httptest.NewRecorder()
plan, err = NewNonAggQueryPlan(&qc, &mockTopo, &mockDatanodeCli)
Ω(err).Should(BeNil())
mockDatanodeCli.On("QueryRaw", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(bsEmpty, nil).Times(len(mockHosts) - 2)
mockDatanodeCli.On("QueryRaw", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(bs, nil).Times(2)
mockTopo.On("MarkHostHealthy", mock.Anything).Return(nil).Times(3)
err = plan.Execute(context.TODO(), w)
Ω(err).Should(BeNil())
Ω(w.Body.String()).Should(Equal(`{"headers":["field1","field2"],"matrixData":[["foo","1"],["NULL","2"],["foo","1"]]}`))
// test limit with enough data 2
w = httptest.NewRecorder()
plan, err = NewNonAggQueryPlan(&qc, &mockTopo, &mockDatanodeCli)
Ω(err).Should(BeNil())
mockDatanodeCli.On("QueryRaw", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(bs, nil).Times(2)
mockDatanodeCli.On("QueryRaw", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(bsEmpty, nil).Times(len(mockHosts) - 2)
mockTopo.On("MarkHostHealthy", mock.Anything).Return(nil).Times(3)
err = plan.Execute(context.TODO(), w)
Ω(err).Should(BeNil())
Ω(w.Body.String()).Should(Equal(`{"headers":["field1","field2"],"matrixData":[["foo","1"],["NULL","2"],["foo","1"]]}`))
})
ginkgo.It("should generate plan for dimension table", func() {
q := queryCom.AQLQuery{
Table: "table1",
Measures: []queryCom.Measure{
{Expr: "1", ExprParsed: &expr.NumberLiteral{Int: 1, ExprType: expr.Unsigned}},
},
Dimensions: []queryCom.Dimension{
{Expr: "field1", ExprParsed: &expr.VarRef{TableID: 0, ColumnID: 0, Val: "field1"}},
{Expr: "field2", ExprParsed: &expr.VarRef{TableID: 0, ColumnID: 1, Val: "field2"}},
},
Limit: -1,
}
qc := QueryContext{
AQLQuery: &q,
IsNonAggregationQuery: true,
DimensionEnumReverseDicts: map[int][]string{
0: {"foo", "bar"},
},
Tables: []*memCom.TableSchema{
{
Schema: metaCom.Table{
IsFactTable: false,
},
},
},
}
mockTopo := topoMock.HealthTrackingDynamicTopoloy{}
mockMap := topoMock.Map{}
mockTopo.On("Get").Return(&mockMap)
mockHost1 := &topoMock.Host{}
mockHost2 := &topoMock.Host{}
mockHost3 := &topoMock.Host{}
mockHosts := []topology.Host{
mockHost1,
mockHost2,
mockHost3,
}
mockMap.On("Hosts").Return(mockHosts)
mockDatanodeCli := dataCliMock.DataNodeQueryClient{}
plan, err := NewNonAggQueryPlan(&qc, &mockTopo, &mockDatanodeCli)
Ω(err).Should(BeNil())
Ω(plan.nodes).Should(HaveLen(1))
Ω(plan.nodes[0].qc.AQLQuery.Shards).Should(Equal([]int{0}))
})
ginkgo.It("should mark host unhealthy on connection error", func() {
q := queryCom.AQLQuery{
Table: "table1",
Measures: []queryCom.Measure{
{Expr: "1"},
},
Dimensions: []queryCom.Dimension{
{Expr: "field1"},
{Expr: "field2"},
},
Limit: -1,
}
qc := QueryContext{
AQLQuery: &q,
IsNonAggregationQuery: true,
Tables: []*memCom.TableSchema{
{
Schema: metaCom.Table{
IsFactTable: true,
},
},
},
}
mockTopo := topoMock.HealthTrackingDynamicTopoloy{}
mockMap := topoMock.Map{}
mockShardSet := shardMock.ShardSet{}
mockTopo.On("Get").Return(&mockMap)
mockMap.On("ShardSet").Return(&mockShardSet)
mockShardIds := []uint32{0, 1, 2, 3, 4, 5}
mockShardSet.On("AllIDs").Return(mockShardIds)
mockHost1 := &topoMock.Host{}
mockHost2 := &topoMock.Host{}
mockHost3 := &topoMock.Host{}
mockHosts := []topology.Host{
mockHost1,
mockHost2,
mockHost3,
}
mockMap.On("Hosts").Return(mockHosts)
//host1: 0,1,2,3
//host2: 4,5,0,1
//host3: 2,3,4,5
mockMap.On("RouteShard", uint32(0)).Return([]topology.Host{mockHost1, mockHost2}, nil)
mockMap.On("RouteShard", uint32(1)).Return([]topology.Host{mockHost1, mockHost2}, nil)
mockMap.On("RouteShard", uint32(2)).Return([]topology.Host{mockHost1, mockHost3}, nil)
mockMap.On("RouteShard", uint32(3)).Return([]topology.Host{mockHost1, mockHost3}, nil)
mockMap.On("RouteShard", uint32(4)).Return([]topology.Host{mockHost2, mockHost3}, nil)
mockMap.On("RouteShard", uint32(5)).Return([]topology.Host{mockHost2, mockHost3}, nil)
mockDatanodeCli := dataCliMock.DataNodeQueryClient{}
w := httptest.NewRecorder()
plan, err := NewNonAggQueryPlan(&qc, &mockTopo, &mockDatanodeCli)
Ω(err).Should(BeNil())
Ω(plan.nodes).Should(HaveLen(len(mockHosts)))
Ω(plan.headers).Should(Equal([]string{"field1", "field2"}))
mockDatanodeCli.On("QueryRaw", mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(nil, client.ErrFailedToConnect).Times(len(mockHosts) * 2)
mockTopo.On("MarkHostUnhealthy", mock.Anything).Return(nil).Times(len(mockHosts))
err = plan.Execute(context.TODO(), w)
Ω(err.Error()).Should(ContainSubstring("Datanode query client failed to connect"))
})
ginkgo.It("cancel query on context cancel", func() {
ctx, cf := context.WithCancel(context.Background())
cf()
q := queryCom.AQLQuery{
Measures: []queryCom.Measure{{ExprParsed: &expr.Call{Name: "count"}}},
}
mockTopo := topoMock.HealthTrackingDynamicTopoloy{}
mockHost1 := topoMock.Host{}
mockTopo.On("MarkHostHealthy", &mockHost1).Return(nil).Once()
mockDatanodeCli := dataCliMock.DataNodeQueryClient{}
myResult := queryCom.AQLQueryResult{"foo": 1}
mockDatanodeCli.On("Query", mock.Anything, mock.Anything, mock.Anything, mock.Anything, mock.Anything).Return(myResult, nil)
sn := StreamingScanNode{
qc: QueryContext{AQLQuery: &q},
dataNodeClient: &mockDatanodeCli,
host: &mockHost1,
topo: &mockTopo,
}
_, err := sn.Execute(ctx)
Ω(err.Error()).Should(ContainSubstring("StreamingScanNode execution canceled"))
})
})