本文整理汇总了Golang中github.com/influxdata/influxdb/influxql.NewQueryExecutor函数的典型用法代码示例。如果您正苦于以下问题:Golang NewQueryExecutor函数的具体用法?Golang NewQueryExecutor怎么用?Golang NewQueryExecutor使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了NewQueryExecutor函数的18个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Golang代码示例。
示例1: TestQueryExecutor_Interrupt
func TestQueryExecutor_Interrupt(t *testing.T) {
q, err := influxql.ParseQuery(`SELECT count(value) FROM cpu`)
if err != nil {
t.Fatal(err)
}
e := influxql.NewQueryExecutor()
e.StatementExecutor = &StatementExecutor{
ExecuteStatementFn: func(stmt influxql.Statement, ctx *influxql.ExecutionContext) error {
select {
case <-ctx.InterruptCh:
return influxql.ErrQueryInterrupted
case <-time.After(100 * time.Millisecond):
t.Error("killing the query did not close the channel after 100 milliseconds")
return errUnexpected
}
},
}
closing := make(chan struct{})
results := e.ExecuteQuery(q, "mydb", 100, closing)
close(closing)
result := <-results
if result.Err != influxql.ErrQueryInterrupted {
t.Errorf("unexpected error: %s", result.Err)
}
}
开发者ID:seiflotfy,项目名称:influxdb,代码行数:27,代码来源:query_executor_test.go
示例2: TestQueryExecutor_ShowQueries
func TestQueryExecutor_ShowQueries(t *testing.T) {
q, err := influxql.ParseQuery(`SELECT count(value) FROM cpu`)
if err != nil {
t.Fatal(err)
}
e := influxql.NewQueryExecutor()
e.StatementExecutor = &StatementExecutor{
ExecuteStatementFn: func(stmt influxql.Statement, ctx *influxql.ExecutionContext) error {
t.Errorf("unexpected statement: %s", stmt)
return errUnexpected
},
}
q, err = influxql.ParseQuery(`SHOW QUERIES`)
if err != nil {
t.Fatal(err)
}
results := e.ExecuteQuery(q, "", 100, nil)
result := <-results
if len(result.Series) != 1 {
t.Errorf("expected %d rows, got %d", 1, len(result.Series))
}
if result.Err != nil {
t.Errorf("unexpected error: %s", result.Err)
}
}
开发者ID:seiflotfy,项目名称:influxdb,代码行数:28,代码来源:query_executor_test.go
示例3: TestQueryExecutor_KillQuery
func TestQueryExecutor_KillQuery(t *testing.T) {
q, err := influxql.ParseQuery(`SELECT count(value) FROM cpu`)
if err != nil {
t.Fatal(err)
}
qid := make(chan uint64)
e := influxql.NewQueryExecutor()
e.StatementExecutor = &StatementExecutor{
ExecuteStatementFn: func(stmt influxql.Statement, ctx *influxql.ExecutionContext) error {
qid <- ctx.QueryID
select {
case <-ctx.InterruptCh:
return influxql.ErrQueryInterrupted
case <-time.After(100 * time.Millisecond):
t.Error("killing the query did not close the channel after 100 milliseconds")
return errUnexpected
}
},
}
results := e.ExecuteQuery(q, "mydb", 100, nil)
q, err = influxql.ParseQuery(fmt.Sprintf("KILL QUERY %d", <-qid))
if err != nil {
t.Fatal(err)
}
discardOutput(e.ExecuteQuery(q, "mydb", 100, nil))
result := <-results
if result.Err != influxql.ErrQueryInterrupted {
t.Errorf("unexpected error: %s", result.Err)
}
}
开发者ID:seiflotfy,项目名称:influxdb,代码行数:34,代码来源:query_executor_test.go
示例4: TestQueryExecutor_Limit_Timeout
func TestQueryExecutor_Limit_Timeout(t *testing.T) {
q, err := influxql.ParseQuery(`SELECT count(value) FROM cpu`)
if err != nil {
t.Fatal(err)
}
e := influxql.NewQueryExecutor()
e.StatementExecutor = &StatementExecutor{
ExecuteStatementFn: func(stmt influxql.Statement, ctx *influxql.ExecutionContext) error {
select {
case <-ctx.InterruptCh:
return influxql.ErrQueryInterrupted
case <-time.After(time.Second):
t.Errorf("timeout has not killed the query")
return errUnexpected
}
},
}
e.QueryTimeout = time.Nanosecond
results := e.ExecuteQuery(q, "mydb", 100, nil)
result := <-results
if result.Err != influxql.ErrQueryTimeoutReached {
t.Errorf("unexpected error: %s", result.Err)
}
}
开发者ID:seiflotfy,项目名称:influxdb,代码行数:26,代码来源:query_executor_test.go
示例5: NewTestService
// NewTestService returns a new *Service with default mock object members.
func NewTestService(t *testing.T) *Service {
s := NewService(NewConfig())
ms := NewMetaClient(t)
s.MetaClient = ms
s.QueryExecutor = influxql.NewQueryExecutor()
s.RunInterval = time.Millisecond
// Set Logger to write to dev/null so stdout isn't polluted.
if testing.Verbose() {
s.WithLogger(zap.New(
zap.NewTextEncoder(),
zap.Output(os.Stderr),
))
}
// Add a couple test databases and CQs.
ms.CreateDatabase("db", "rp")
ms.CreateContinuousQuery("db", "cq", `CREATE CONTINUOUS QUERY cq ON db BEGIN SELECT count(cpu) INTO cpu_count FROM cpu WHERE time > now() - 1h GROUP BY time(1s) END`)
ms.CreateDatabase("db2", "default")
ms.CreateContinuousQuery("db2", "cq2", `CREATE CONTINUOUS QUERY cq2 ON db2 BEGIN SELECT mean(value) INTO cpu_mean FROM cpu WHERE time > now() - 10m GROUP BY time(1m) END`)
ms.CreateDatabase("db3", "default")
ms.CreateContinuousQuery("db3", "cq3", `CREATE CONTINUOUS QUERY cq3 ON db3 BEGIN SELECT mean(value) INTO "1hAverages".:MEASUREMENT FROM /cpu[0-9]?/ GROUP BY time(10s) END`)
return s
}
开发者ID:li-ang,项目名称:influxdb,代码行数:26,代码来源:service_test.go
示例6: NewQueryExecutor
// NewQueryExecutor returns a *QueryExecutor.
func NewQueryExecutor(t *testing.T) *QueryExecutor {
e := influxql.NewQueryExecutor()
e.StatementExecutor = &StatementExecutor{}
return &QueryExecutor{
QueryExecutor: e,
t: t,
}
}
开发者ID:wutaizeng,项目名称:kapacitor,代码行数:9,代码来源:service_test.go
示例7: NewHandler
// NewHandler returns a new instance of Handler.
func NewHandler(requireAuthentication bool) *Handler {
statMap := influxdb.NewStatistics("httpd", "httpd", nil)
h := &Handler{
Handler: httpd.NewHandler(requireAuthentication, true, false, 0, statMap),
}
h.Handler.MetaClient = &h.MetaClient
h.Handler.QueryExecutor = influxql.NewQueryExecutor()
h.Handler.QueryExecutor.StatementExecutor = &h.StatementExecutor
h.Handler.Version = "0.0.0"
return h
}
开发者ID:seiflotfy,项目名称:influxdb,代码行数:12,代码来源:handler_test.go
示例8: TestQueryExecutor_Close
func TestQueryExecutor_Close(t *testing.T) {
q, err := influxql.ParseQuery(`SELECT count(value) FROM cpu`)
if err != nil {
t.Fatal(err)
}
ch1 := make(chan struct{})
ch2 := make(chan struct{})
e := influxql.NewQueryExecutor()
e.StatementExecutor = &StatementExecutor{
ExecuteStatementFn: func(stmt influxql.Statement, ctx *influxql.ExecutionContext) error {
close(ch1)
<-ctx.InterruptCh
close(ch2)
return influxql.ErrQueryInterrupted
},
}
results := e.ExecuteQuery(q, "mydb", 100, nil)
go func(results <-chan *influxql.Result) {
result := <-results
if result.Err != influxql.ErrQueryEngineShutdown {
t.Errorf("unexpected error: %s", result.Err)
}
}(results)
// Wait for the statement to start executing.
<-ch1
// Close the query executor.
e.Close()
// Check that the statement gets interrupted and finishes.
select {
case <-ch2:
case <-time.After(100 * time.Millisecond):
t.Error("closing the query manager did not kill the query after 100 milliseconds")
}
results = e.ExecuteQuery(q, "mydb", 100, nil)
result := <-results
if len(result.Series) != 0 {
t.Errorf("expected %d rows, got %d", 0, len(result.Series))
}
if result.Err != influxql.ErrQueryEngineShutdown {
t.Errorf("unexpected error: %s", result.Err)
}
}
开发者ID:seiflotfy,项目名称:influxdb,代码行数:49,代码来源:query_executor_test.go
示例9: NewHandler
// NewHandler returns a new instance of Handler.
func NewHandler(requireAuthentication bool) *Handler {
config := httpd.NewConfig()
config.AuthEnabled = requireAuthentication
config.SharedSecret = "super secret key"
h := &Handler{
Handler: httpd.NewHandler(config),
}
h.Handler.MetaClient = &h.MetaClient
h.Handler.QueryExecutor = influxql.NewQueryExecutor()
h.Handler.QueryExecutor.StatementExecutor = &h.StatementExecutor
h.Handler.QueryAuthorizer = &h.QueryAuthorizer
h.Handler.Version = "0.0.0"
return h
}
开发者ID:li-ang,项目名称:influxdb,代码行数:16,代码来源:handler_test.go
示例10: NewQueryExecutor
// NewQueryExecutor returns a new instance of QueryExecutor.
// This query executor always has a node id of 0.
func NewQueryExecutor() *QueryExecutor {
e := &QueryExecutor{
QueryExecutor: influxql.NewQueryExecutor(),
}
e.StatementExecutor = &cluster.StatementExecutor{
MetaClient: &e.MetaClient,
TSDBStore: &e.TSDBStore,
}
e.QueryExecutor.StatementExecutor = e.StatementExecutor
e.QueryExecutor.LogOutput = &e.LogOutput
if testing.Verbose() {
e.QueryExecutor.LogOutput = io.MultiWriter(e.QueryExecutor.LogOutput, os.Stderr)
}
return e
}
开发者ID:seiflotfy,项目名称:influxdb,代码行数:19,代码来源:statement_executor_test.go
示例11: TestQueryExecutor_AttachQuery
func TestQueryExecutor_AttachQuery(t *testing.T) {
q, err := influxql.ParseQuery(`SELECT count(value) FROM cpu`)
if err != nil {
t.Fatal(err)
}
e := influxql.NewQueryExecutor()
e.StatementExecutor = &StatementExecutor{
ExecuteStatementFn: func(stmt influxql.Statement, ctx *influxql.ExecutionContext) error {
if ctx.QueryID != 1 {
t.Errorf("incorrect query id: exp=1 got=%d", ctx.QueryID)
}
return nil
},
}
discardOutput(e.ExecuteQuery(q, "mydb", 100, nil))
}
开发者ID:seiflotfy,项目名称:influxdb,代码行数:18,代码来源:query_executor_test.go
示例12: NewQueryExecutor
// NewQueryExecutor returns a new instance of QueryExecutor.
// This query executor always has a node id of 0.
func NewQueryExecutor() *QueryExecutor {
e := &QueryExecutor{
QueryExecutor: influxql.NewQueryExecutor(),
}
e.StatementExecutor = &cluster.StatementExecutor{
MetaClient: &e.MetaClient,
TSDBStore: &e.TSDBStore,
}
e.QueryExecutor.StatementExecutor = e.StatementExecutor
var out io.Writer = &e.LogOutput
if testing.Verbose() {
out = io.MultiWriter(out, os.Stderr)
}
e.QueryExecutor.Logger = log.New(out, "[query] ", log.LstdFlags)
return e
}
开发者ID:Vidhuran,项目名称:influxdb,代码行数:20,代码来源:statement_executor_test.go
示例13: NewQueryExecutor
// NewQueryExecutor returns a new instance of QueryExecutor.
// This query executor always has a node id of 0.
func NewQueryExecutor() *QueryExecutor {
e := &QueryExecutor{
QueryExecutor: influxql.NewQueryExecutor(),
}
e.StatementExecutor = &coordinator.StatementExecutor{
MetaClient: &e.MetaClient,
TSDBStore: &e.TSDBStore,
}
e.QueryExecutor.StatementExecutor = e.StatementExecutor
var out io.Writer = &e.LogOutput
if testing.Verbose() {
out = io.MultiWriter(out, os.Stderr)
}
e.QueryExecutor.WithLogger(zap.New(
zap.NewTextEncoder(),
zap.Output(os.Stderr),
))
return e
}
开发者ID:li-ang,项目名称:influxdb,代码行数:23,代码来源:statement_executor_test.go
示例14: TestQueryExecutor_Panic
func TestQueryExecutor_Panic(t *testing.T) {
q, err := influxql.ParseQuery(`SELECT count(value) FROM cpu`)
if err != nil {
t.Fatal(err)
}
e := influxql.NewQueryExecutor()
e.StatementExecutor = &StatementExecutor{
ExecuteStatementFn: func(stmt influxql.Statement, ctx *influxql.ExecutionContext) error {
panic("test error")
},
}
results := e.ExecuteQuery(q, "mydb", 100, false, nil)
result := <-results
if len(result.Series) != 0 {
t.Errorf("expected %d rows, got %d", 0, len(result.Series))
}
if result.Err == nil || result.Err.Error() != "SELECT count(value) FROM cpu [panic:test error]" {
t.Errorf("unexpected error: %s", result.Err)
}
}
开发者ID:jipperinbham,项目名称:influxdb,代码行数:22,代码来源:query_executor_test.go
示例15: TestQueryExecutor_Limit_ConcurrentQueries
func TestQueryExecutor_Limit_ConcurrentQueries(t *testing.T) {
q, err := influxql.ParseQuery(`SELECT count(value) FROM cpu`)
if err != nil {
t.Fatal(err)
}
qid := make(chan uint64)
e := influxql.NewQueryExecutor()
e.StatementExecutor = &StatementExecutor{
ExecuteStatementFn: func(stmt influxql.Statement, ctx *influxql.ExecutionContext) error {
qid <- ctx.QueryID
<-ctx.InterruptCh
return influxql.ErrQueryInterrupted
},
}
e.MaxConcurrentQueries = 1
defer e.Close()
// Start first query and wait for it to be executing.
go discardOutput(e.ExecuteQuery(q, "mydb", 100, nil))
<-qid
// Start second query and expect for it to fail.
results := e.ExecuteQuery(q, "mydb", 100, nil)
select {
case result := <-results:
if len(result.Series) != 0 {
t.Errorf("expected %d rows, got %d", 0, len(result.Series))
}
if result.Err != influxql.ErrMaxConcurrentQueriesReached {
t.Errorf("unexpected error: %s", result.Err)
}
case <-qid:
t.Errorf("unexpected statement execution for the second query")
}
}
开发者ID:seiflotfy,项目名称:influxdb,代码行数:38,代码来源:query_executor_test.go
示例16: NewQueryExecutor
func NewQueryExecutor() *influxql.QueryExecutor {
return influxql.NewQueryExecutor()
}
开发者ID:ChenXiukun,项目名称:influxdb,代码行数:3,代码来源:query_executor_test.go
示例17: NewServer
// NewServer returns a new instance of Server built from a config.
func NewServer(c *Config, buildInfo *BuildInfo) (*Server, error) {
// We need to ensure that a meta directory always exists even if
// we don't start the meta store. node.json is always stored under
// the meta directory.
if err := os.MkdirAll(c.Meta.Dir, 0777); err != nil {
return nil, fmt.Errorf("mkdir all: %s", err)
}
// 0.10-rc1 and prior would sometimes put the node.json at the root
// dir which breaks backup/restore and restarting nodes. This moves
// the file from the root so it's always under the meta dir.
oldPath := filepath.Join(filepath.Dir(c.Meta.Dir), "node.json")
newPath := filepath.Join(c.Meta.Dir, "node.json")
if _, err := os.Stat(oldPath); err == nil {
if err := os.Rename(oldPath, newPath); err != nil {
return nil, err
}
}
_, err := influxdb.LoadNode(c.Meta.Dir)
if err != nil {
if !os.IsNotExist(err) {
return nil, err
}
}
if err := raftDBExists(c.Meta.Dir); err != nil {
return nil, err
}
// In 0.10.0 bind-address got moved to the top level. Check
// The old location to keep things backwards compatible
bind := c.BindAddress
s := &Server{
buildInfo: *buildInfo,
err: make(chan error),
closing: make(chan struct{}),
BindAddress: bind,
Logger: zap.New(
zap.NewTextEncoder(),
zap.Output(os.Stderr),
),
MetaClient: meta.NewClient(c.Meta),
reportingDisabled: c.ReportingDisabled,
httpAPIAddr: c.HTTPD.BindAddress,
httpUseTLS: c.HTTPD.HTTPSEnabled,
tcpAddr: bind,
config: c,
}
s.Monitor = monitor.New(s, c.Monitor)
if err := s.MetaClient.Open(); err != nil {
return nil, err
}
s.TSDBStore = tsdb.NewStore(c.Data.Dir)
s.TSDBStore.EngineOptions.Config = c.Data
// Copy TSDB configuration.
s.TSDBStore.EngineOptions.EngineVersion = c.Data.Engine
// Create the Subscriber service
s.Subscriber = subscriber.NewService(c.Subscriber)
// Initialize points writer.
s.PointsWriter = coordinator.NewPointsWriter()
s.PointsWriter.WriteTimeout = time.Duration(c.Coordinator.WriteTimeout)
s.PointsWriter.TSDBStore = s.TSDBStore
s.PointsWriter.Subscriber = s.Subscriber
// Initialize query executor.
s.QueryExecutor = influxql.NewQueryExecutor()
s.QueryExecutor.StatementExecutor = &coordinator.StatementExecutor{
MetaClient: s.MetaClient,
TaskManager: s.QueryExecutor.TaskManager,
TSDBStore: coordinator.LocalTSDBStore{Store: s.TSDBStore},
Monitor: s.Monitor,
PointsWriter: s.PointsWriter,
MaxSelectPointN: c.Coordinator.MaxSelectPointN,
MaxSelectSeriesN: c.Coordinator.MaxSelectSeriesN,
MaxSelectBucketsN: c.Coordinator.MaxSelectBucketsN,
}
s.QueryExecutor.TaskManager.QueryTimeout = time.Duration(c.Coordinator.QueryTimeout)
s.QueryExecutor.TaskManager.LogQueriesAfter = time.Duration(c.Coordinator.LogQueriesAfter)
s.QueryExecutor.TaskManager.MaxConcurrentQueries = c.Coordinator.MaxConcurrentQueries
// Initialize the monitor
s.Monitor.Version = s.buildInfo.Version
s.Monitor.Commit = s.buildInfo.Commit
s.Monitor.Branch = s.buildInfo.Branch
s.Monitor.BuildTime = s.buildInfo.Time
//.........这里部分代码省略.........
开发者ID:li-ang,项目名称:influxdb,代码行数:101,代码来源:server.go
示例18: NewServer
// NewServer returns a new instance of Server built from a config.
func NewServer(c *Config, buildInfo *BuildInfo) (*Server, error) {
// We need to ensure that a meta directory always exists even if
// we don't start the meta store. node.json is always stored under
// the meta directory.
if err := os.MkdirAll(c.Meta.Dir, 0777); err != nil {
return nil, fmt.Errorf("mkdir all: %s", err)
}
// 0.10-rc1 and prior would sometimes put the node.json at the root
// dir which breaks backup/restore and restarting nodes. This moves
// the file from the root so it's always under the meta dir.
oldPath := filepath.Join(filepath.Dir(c.Meta.Dir), "node.json")
newPath := filepath.Join(c.Meta.Dir, "node.json")
if _, err := os.Stat(oldPath); err == nil {
if err := os.Rename(oldPath, newPath); err != nil {
return nil, err
}
}
_, err := influxdb.LoadNode(c.Meta.Dir)
if err != nil {
if !os.IsNotExist(err) {
return nil, err
}
}
// Check to see if there is a raft db, if so, error out with a message
// to downgrade, export, and then import the meta data
raftFile := filepath.Join(c.Meta.Dir, "raft.db")
if _, err := os.Stat(raftFile); err == nil {
return nil, fmt.Errorf("detected %s. To proceed, you'll need to either 1) downgrade to v0.11.x, export your metadata, upgrade to the current version again, and then import the metadata or 2) delete the file, which will effectively reset your database. For more assistance with the upgrade, see: https://docs.influxdata.com/influxdb/v0.12/administration/upgrading/", raftFile)
}
// In 0.10.0 bind-address got moved to the top level. Check
// The old location to keep things backwards compatible
bind := c.BindAddress
s := &Server{
buildInfo: *buildInfo,
err: make(chan error),
closing: make(chan struct{}),
BindAddress: bind,
MetaClient: meta.NewClient(c.Meta),
Monitor: monitor.New(c.Monitor),
reportingDisabled: c.ReportingDisabled,
httpAPIAddr: c.HTTPD.BindAddress,
httpUseTLS: c.HTTPD.HTTPSEnabled,
tcpAddr: bind,
config: c,
}
if err := s.MetaClient.Open(); err != nil {
return nil, err
}
s.TSDBStore = tsdb.NewStore(c.Data.Dir)
s.TSDBStore.EngineOptions.Config = c.Data
// Copy TSDB configuration.
s.TSDBStore.EngineOptions.EngineVersion = c.Data.Engine
// Create the Subscriber service
s.Subscriber = subscriber.NewService(c.Subscriber)
// Initialize points writer.
s.PointsWriter = cluster.NewPointsWriter()
s.PointsWriter.WriteTimeout = time.Duration(c.Cluster.WriteTimeout)
s.PointsWriter.TSDBStore = s.TSDBStore
s.PointsWriter.Subscriber = s.Subscriber
// Initialize query executor.
s.QueryExecutor = influxql.NewQueryExecutor()
s.QueryExecutor.StatementExecutor = &cluster.StatementExecutor{
MetaClient: s.MetaClient,
TSDBStore: cluster.LocalTSDBStore{Store: s.TSDBStore},
Monitor: s.Monitor,
PointsWriter: s.PointsWriter,
MaxSelectPointN: c.Cluster.MaxSelectPointN,
MaxSelectSeriesN: c.Cluster.MaxSelectSeriesN,
MaxSelectBucketsN: c.Cluster.MaxSelectBucketsN,
}
s.QueryExecutor.QueryTimeout = time.Duration(c.Cluster.QueryTimeout)
s.QueryExecutor.MaxConcurrentQueries = c.Cluster.MaxConcurrentQueries
if c.Data.QueryLogEnabled {
s.QueryExecutor.LogOutput = os.Stderr
}
// Initialize the monitor
s.Monitor.Version = s.buildInfo.Version
s.Monitor.Commit = s.buildInfo.Commit
s.Monitor.Branch = s.buildInfo.Branch
s.Monitor.BuildTime = s.buildInfo.Time
//.........这里部分代码省略.........
开发者ID:seiflotfy,项目名称:influxdb,代码行数:101,代码来源:server.go
注:本文中的github.com/influxdata/influxdb/influxql.NewQueryExecutor函数示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
请发表评论