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*: remove goroutine pool #7564

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merged 2 commits into from
Aug 31, 2018
Merged

*: remove goroutine pool #7564

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60c9b25
*: remove goroutine pool
tiancaiamao Aug 31, 2018
abd37b9
Merge branch 'master' into remove-goroutine-pool
tiancaiamao Aug 31, 2018
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9 changes: 1 addition & 8 deletions distsql/select_result.go
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,6 @@ import (
"github.com/pingcap/tidb/types"
"github.com/pingcap/tidb/util/chunk"
"github.com/pingcap/tidb/util/codec"
"github.com/pingcap/tidb/util/goroutine_pool"
"github.com/pingcap/tipb/go-tipb"
"golang.org/x/net/context"
)
Expand All @@ -35,10 +34,6 @@ var (
_ SelectResult = (*streamResult)(nil)
)

var (
selectResultGP = gp.New(time.Minute * 2)
)

// SelectResult is an iterator of coprocessor partial results.
type SelectResult interface {
// Fetch fetches partial results from client.
Expand Down Expand Up @@ -75,9 +70,7 @@ type selectResult struct {
}

func (r *selectResult) Fetch(ctx context.Context) {
selectResultGP.Go(func() {
r.fetch(ctx)
})
go r.fetch(ctx)
}

func (r *selectResult) fetch(ctx context.Context) {
Expand Down
15 changes: 6 additions & 9 deletions store/tikv/2pc.go
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Expand Up @@ -28,7 +28,6 @@ import (
"github.com/pingcap/tidb/store/tikv/tikvrpc"
"github.com/pingcap/tidb/tablecodec"
"github.com/pingcap/tidb/terror"
"github.com/pingcap/tidb/util/goroutine_pool"
binlog "github.com/pingcap/tipb/go-binlog"
log "github.com/sirupsen/logrus"
"golang.org/x/net/context"
Expand All @@ -42,8 +41,6 @@ const (
actionCleanup twoPhaseCommitAction = 3
)

var twoPhaseCommitGP = gp.New(3 * time.Minute)

func (ca twoPhaseCommitAction) String() string {
switch ca {
case actionPrewrite:
Expand Down Expand Up @@ -225,13 +222,13 @@ func (c *twoPhaseCommitter) doActionOnKeys(bo *Backoffer, action twoPhaseCommitA
}
if action == actionCommit {
// Commit secondary batches in background goroutine to reduce latency.
twoPhaseCommitGP.Go(func() {
go func() {
e := c.doActionOnBatches(bo, action, batches)
if e != nil {
log.Debugf("con:%d 2PC async doActionOnBatches %s err: %v", c.connID, action, e)
metrics.TiKVSecondaryLockCleanupFailureCounter.WithLabelValues("commit").Inc()
}
})
}()
} else {
err = c.doActionOnBatches(bo, action, batches)
}
Expand Down Expand Up @@ -272,7 +269,7 @@ func (c *twoPhaseCommitter) doActionOnBatches(bo *Backoffer, action twoPhaseComm
for _, batch1 := range batches {

batch := batch1
twoPhaseCommitGP.Go(func() {
go func() {
if action == actionCommit {
// Because the secondary batches of the commit actions are implemented to be
// committed asynchronously in background goroutines, we should not
Expand All @@ -288,7 +285,7 @@ func (c *twoPhaseCommitter) doActionOnBatches(bo *Backoffer, action twoPhaseComm
defer singleBatchCancel()
ch <- singleBatchActionFunc(singleBatchBackoffer, batch)
}
})
}()
}
var err error
for i := 0; i < len(batches); i++ {
Expand Down Expand Up @@ -571,7 +568,7 @@ func (c *twoPhaseCommitter) execute(ctx context.Context) error {
c.mu.RUnlock()
if !committed && !undetermined {
c.cleanWg.Add(1)
twoPhaseCommitGP.Go(func() {
go func() {
err := c.cleanupKeys(NewBackoffer(context.Background(), cleanupMaxBackoff).WithVars(c.txn.vars), c.keys)
if err != nil {
metrics.TiKVSecondaryLockCleanupFailureCounter.WithLabelValues("rollback").Inc()
Expand All @@ -580,7 +577,7 @@ func (c *twoPhaseCommitter) execute(ctx context.Context) error {
log.Infof("con:%d 2PC clean up done, tid: %d", c.connID, c.startTS)
}
c.cleanWg.Done()
})
}()
}
}()

Expand Down
9 changes: 2 additions & 7 deletions store/tikv/coprocessor.go
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Expand Up @@ -31,14 +31,11 @@ import (
"github.com/pingcap/tidb/metrics"
"github.com/pingcap/tidb/store/tikv/tikvrpc"
"github.com/pingcap/tidb/util/execdetails"
"github.com/pingcap/tidb/util/goroutine_pool"
"github.com/pingcap/tipb/go-tipb"
log "github.com/sirupsen/logrus"
"golang.org/x/net/context"
)

var copIteratorGP = gp.New(time.Minute)

// CopClient is coprocessor client.
type CopClient struct {
store *tikvStore
Expand Down Expand Up @@ -452,9 +449,7 @@ func (it *copIterator) open(ctx context.Context) {
finishCh: it.finishCh,
vars: it.vars,
}
copIteratorGP.Go(func() {
worker.run(ctx)
})
go worker.run(ctx)
}
taskSender := &copIteratorTaskSender{
taskCh: taskCh,
Expand All @@ -463,7 +458,7 @@ func (it *copIterator) open(ctx context.Context) {
finishCh: it.finishCh,
}
taskSender.respChan = it.respChan
copIteratorGP.Go(taskSender.run)
go taskSender.run()
}

func (sender *copIteratorTaskSender) run() {
Expand Down
10 changes: 4 additions & 6 deletions store/tikv/rawkv.go
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Original file line number Diff line number Diff line change
Expand Up @@ -23,12 +23,10 @@ import (
"github.com/pingcap/tidb/config"
"github.com/pingcap/tidb/metrics"
"github.com/pingcap/tidb/store/tikv/tikvrpc"
"github.com/pingcap/tidb/util/goroutine_pool"
"golang.org/x/net/context"
)

var (
rawKVClientGP = gp.New(3 * time.Minute)
// MaxRawKVScanLimit is the maximum scan limit for rawkv Scan.
MaxRawKVScanLimit = 10240
// ErrMaxScanLimitExceeded is returned when the limit for rawkv Scan is to large.
Expand Down Expand Up @@ -349,11 +347,11 @@ func (c *RawKVClient) sendBatchReq(bo *Backoffer, keys [][]byte, cmdType tikvrpc
ches := make(chan singleBatchResp, len(batches))
for _, batch := range batches {
batch1 := batch
rawKVClientGP.Go(func() {
go func() {
singleBatchBackoffer, singleBatchCancel := bo.Fork()
defer singleBatchCancel()
ches <- c.doBatchReq(singleBatchBackoffer, batch1, cmdType)
})
}()
}

var firstError error
Expand Down Expand Up @@ -507,11 +505,11 @@ func (c *RawKVClient) sendBatchPut(bo *Backoffer, keys, values [][]byte) error {
ch := make(chan error, len(batches))
for _, batch := range batches {
batch1 := batch
rawKVClientGP.Go(func() {
go func() {
singleBatchBackoffer, singleBatchCancel := bo.Fork()
defer singleBatchCancel()
ch <- c.doBatchPut(singleBatchBackoffer, batch1)
})
}()
}

for i := 0; i < len(batches); i++ {
Expand Down
7 changes: 2 additions & 5 deletions store/tikv/snapshot.go
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,6 @@ import (
"github.com/pingcap/tidb/metrics"
"github.com/pingcap/tidb/store/tikv/tikvrpc"
"github.com/pingcap/tidb/tablecodec"
"github.com/pingcap/tidb/util/goroutine_pool"
log "github.com/sirupsen/logrus"
"golang.org/x/net/context"
)
Expand All @@ -51,8 +50,6 @@ type tikvSnapshot struct {
vars *kv.Variables
}

var snapshotGP = gp.New(time.Minute)

// newTiKVSnapshot creates a snapshot of an TiKV store.
func newTiKVSnapshot(store *tikvStore, ver kv.Version) *tikvSnapshot {
return &tikvSnapshot{
Expand Down Expand Up @@ -123,11 +120,11 @@ func (s *tikvSnapshot) batchGetKeysByRegions(bo *Backoffer, keys [][]byte, colle
ch := make(chan error)
for _, batch1 := range batches {
batch := batch1
snapshotGP.Go(func() {
go func() {
backoffer, cancel := bo.Fork()
defer cancel()
ch <- s.batchGetSingleRegion(backoffer, batch, collectF)
})
}()
}
for i := 0; i < len(batches); i++ {
if e := <-ch; e != nil {
Expand Down
30 changes: 0 additions & 30 deletions util/goroutine_pool/fake.go
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124 changes: 0 additions & 124 deletions util/goroutine_pool/gp.go
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