Add max memory limit to Extract() to prevent OOM

This commit changes the Extract() query to return an error if the
result set gets too large in order to prevent out-of-memory (OOM)
panics.
This commit is contained in:
Ben Johnson 2021-07-30 07:14:15 -06:00
parent 317f1e0145
commit d16978f5dc
8 changed files with 338 additions and 142 deletions

1
api.go
View file

@ -197,6 +197,7 @@ func (api *API) query(ctx context.Context, req *QueryRequest) (QueryResponse, er
Profile: req.Profile,
PreTranslated: req.PreTranslated,
EmbeddedData: req.EmbeddedData, // precomputed values that needed to be passed with the request
MaxMemory: req.MaxMemory,
}
resp, err := api.server.executor.Execute(ctx, req.Index, q, req.Shards, execOpts)
if err != nil {

View file

@ -484,6 +484,7 @@ func (s Serializer) encodeQueryRequest(m *pilosa.QueryRequest) *pb.QueryRequest
Remote: m.Remote,
PreTranslated: m.PreTranslated,
EmbeddedData: make([]*pb.Row, len(m.EmbeddedData)),
MaxMemory: m.MaxMemory,
}
for i := range m.EmbeddedData {
r.EmbeddedData[i] = s.encodeRow(m.EmbeddedData[i])
@ -1186,6 +1187,7 @@ func (s Serializer) decodeQueryRequest(pb *pb.QueryRequest, m *pilosa.QueryReque
m.Remote = pb.Remote
m.EmbeddedData = make([]*pilosa.Row, len(pb.EmbeddedData))
m.PreTranslated = pb.PreTranslated
m.MaxMemory = pb.MaxMemory
for i := range pb.EmbeddedData {
m.EmbeddedData[i] = s.decodeRow(pb.EmbeddedData[i])
}

View file

@ -25,11 +25,10 @@ import (
"sort"
"strings"
"sync"
"sync/atomic"
"time"
"unsafe"
"golang.org/x/sync/errgroup"
"github.com/lib/pq"
"github.com/molecula/featurebase/v2/disco"
"github.com/molecula/featurebase/v2/pql"
@ -40,6 +39,7 @@ import (
"github.com/molecula/featurebase/v2/topology"
"github.com/molecula/featurebase/v2/tracing"
"github.com/pkg/errors"
"golang.org/x/sync/errgroup"
)
// defaultField is the field used if one is not specified.
@ -75,6 +75,9 @@ type executor struct {
workersWG sync.WaitGroup
workerPoolSize int
work chan job
// Maximum per-request memory usage (Extract() only)
maxMemory int64
}
// executorOption is a functional option type for pilosa.Executor
@ -94,6 +97,13 @@ func optExecutorWorkerPoolSize(size int) executorOption {
}
}
func optExecutorMaxMemory(v int64) executorOption {
return func(e *executor) error {
e.maxMemory = v
return nil
}
}
func emptyResult(c *pql.Call) interface{} {
switch c.Name {
case "Clear", "ClearRow":
@ -839,7 +849,7 @@ func (e *executor) executeIncludesColumnCall(ctx context.Context, qcx *Qcx, inde
}
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeIncludesColumnCallShard(ctx, qcx, index, c, shard, col)
}
@ -888,7 +898,7 @@ func (e *executor) executeFieldValueCall(ctx context.Context, qcx *Qcx, index st
shard := colID / ShardWidth
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeFieldValueCallShard(ctx, qcx, field, colID, shard)
}
@ -1053,7 +1063,7 @@ func (e *executor) executeSum(ctx context.Context, qcx *Qcx, index string, c *pq
}
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeSumCountShard(ctx, qcx, index, c, nil, shard)
}
@ -1106,7 +1116,7 @@ func (e *executor) executeDistinct(ctx context.Context, qcx *Qcx, index string,
}
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeDistinctShard(ctx, qcx, index, field, c, shard)
}
@ -1157,7 +1167,7 @@ func (e *executor) executeMin(ctx context.Context, qcx *Qcx, index string, c *pq
}
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeMinShard(ctx, qcx, index, c, shard)
}
@ -1193,7 +1203,7 @@ func (e *executor) executeMax(ctx context.Context, qcx *Qcx, index string, c *pq
}
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeMaxShard(ctx, qcx, index, c, shard)
}
@ -1348,7 +1358,7 @@ func (e *executor) executeMinRow(ctx context.Context, qcx *Qcx, index string, c
}
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeMinRowShard(ctx, qcx, index, c, shard)
}
@ -1387,7 +1397,7 @@ func (e *executor) executeMaxRow(ctx context.Context, qcx *Qcx, index string, c
}
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeMaxRowShard(ctx, qcx, index, c, shard)
}
@ -1445,7 +1455,7 @@ func (e *executor) executeBitmapCall(ctx context.Context, qcx *Qcx, index string
}
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeBitmapCallShard(ctx, qcx, index, c, shard)
}
@ -1977,7 +1987,7 @@ func (e *executor) executeTopK(ctx context.Context, qcx *Qcx, index string, c *p
span, ctx := tracing.StartSpanFromContext(ctx, "Executor.executeTopK")
defer span.Finish()
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeTopKShard(ctx, qcx, index, c, shard)
}
@ -2454,7 +2464,7 @@ func (e *executor) executeTopNShards(ctx context.Context, qcx *Qcx, index string
defer span.Finish()
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeTopNShard(ctx, qcx, index, c, shard)
}
@ -2906,7 +2916,7 @@ func (e *executor) executeGroupBy(ctx context.Context, qcx *Qcx, index string, c
ignoreLimit := sorter != nil
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeGroupByShard(ctx, qcx, index, c, filter, shard, childRows, bases, ignoreLimit)
}
@ -3541,7 +3551,7 @@ func (e *executor) executeRows(ctx context.Context, qcx *Qcx, index string, c *p
}
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeRowsShard(ctx, qcx, index, fieldName, c, shard)
}
@ -4153,6 +4163,11 @@ func (e *executor) executeExternalLookup(ctx context.Context, qcx *Qcx, index st
}
func (e *executor) executeExtract(ctx context.Context, qcx *Qcx, index string, c *pql.Call, shards []uint64, opt *execOptions) (ExtractedIDMatrix, error) {
// Defualt maximum memory, if not passed in.
if opt.MaxMemory == 0 {
opt.MaxMemory = e.maxMemory
}
// Extract the column filter call.
if len(c.Children) < 1 {
return ExtractedIDMatrix{}, errors.New("missing column filter in Extract")
@ -4183,8 +4198,8 @@ func (e *executor) executeExtract(ctx context.Context, qcx *Qcx, index string, c
}
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
return e.executeExtractShard(ctx, qcx, index, fields, filter, shard)
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeExtractShard(ctx, qcx, index, fields, filter, shard, mopt)
}
// Merge returned results at coordinating node.
@ -4218,7 +4233,7 @@ func mergeBits(bits *Row, mask uint64, out map[uint64]uint64) {
var trueRowFakeID = []uint64{1}
var falseRowFakeID = []uint64{0}
func (e *executor) executeExtractShard(ctx context.Context, qcx *Qcx, index string, fields []string, filter *pql.Call, shard uint64) (_ ExtractedIDMatrix, err0 error) {
func (e *executor) executeExtractShard(ctx context.Context, qcx *Qcx, index string, fields []string, filter *pql.Call, shard uint64, mopt *mapOptions) (_ ExtractedIDMatrix, err0 error) {
// Execute filter.
colsBitmap, err := e.executeBitmapCallShard(ctx, qcx, index, filter, shard)
@ -4399,10 +4414,14 @@ func (e *executor) executeExtractShard(ctx context.Context, qcx *Qcx, index stri
// Emit the final matrix.
// Like RowIDs, this is an internal type and will need to be converted.
return ExtractedIDMatrix{
matrix := ExtractedIDMatrix{
Fields: fields,
Columns: m,
}, nil
}
if v := atomic.AddInt64(mopt.memoryAvailable, -calcResultMemory(matrix)); v < 0 {
return ExtractedIDMatrix{}, fmt.Errorf("result exceeds available memory")
}
return matrix, nil
}
func (e *executor) executeRowShard(ctx context.Context, qcx *Qcx, index string, c *pql.Call, shard uint64) (_ *Row, err0 error) {
@ -4993,7 +5012,7 @@ func (e *executor) executeCount(ctx context.Context, qcx *Qcx, index string, c *
}
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
row, err := e.executeBitmapCallShard(ctx, qcx, index, child, shard)
if err != nil {
return 0, err
@ -5097,7 +5116,7 @@ func (e *executor) executeClearBitField(ctx context.Context, qcx *Qcx, index str
}
// Forward call to remote node otherwise.
res, err := e.remoteExec(ctx, node, index, &pql.Query{Calls: []*pql.Call{c}}, nil, nil)
res, err := e.remoteExec(ctx, node, index, &pql.Query{Calls: []*pql.Call{c}}, nil, nil, 0)
if err != nil {
return false, err
}
@ -5130,7 +5149,7 @@ func (e *executor) executeClearRow(ctx context.Context, qcx *Qcx, index string,
}
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeClearRowShard(ctx, qcx, index, c, shard)
}
@ -5225,7 +5244,7 @@ func (e *executor) executeSetRow(ctx context.Context, qcx *Qcx, indexName string
}
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeSetRowShard(ctx, qcx, indexName, c, shard)
}
@ -5457,7 +5476,7 @@ func (e *executor) executeSetBitField(ctx context.Context, qcx *Qcx, index strin
}
// Forward call to remote node otherwise.
res, err := e.remoteExec(ctx, node, index, &pql.Query{Calls: []*pql.Call{c}}, nil, nil)
res, err := e.remoteExec(ctx, node, index, &pql.Query{Calls: []*pql.Call{c}}, nil, nil, 0)
if err != nil {
return false, err
}
@ -5504,7 +5523,7 @@ func (e *executor) executeSetValueField(ctx context.Context, qcx *Qcx, index str
}
// Forward call to remote node otherwise.
res, err := e.remoteExec(ctx, node, index, &pql.Query{Calls: []*pql.Call{c}}, nil, nil)
res, err := e.remoteExec(ctx, node, index, &pql.Query{Calls: []*pql.Call{c}}, nil, nil, 0)
if err != nil {
return false, err
}
@ -5549,7 +5568,7 @@ func (e *executor) executeClearValueField(ctx context.Context, qcx *Qcx, index s
}
// Forward call to remote node otherwise.
res, err := e.remoteExec(ctx, node, index, &pql.Query{Calls: []*pql.Call{c}}, nil, nil)
res, err := e.remoteExec(ctx, node, index, &pql.Query{Calls: []*pql.Call{c}}, nil, nil, 0)
if err != nil {
return false, err
}
@ -5559,7 +5578,7 @@ func (e *executor) executeClearValueField(ctx context.Context, qcx *Qcx, index s
}
// remoteExec executes a PQL query remotely for a set of shards on a node.
func (e *executor) remoteExec(ctx context.Context, node *topology.Node, index string, q *pql.Query, shards []uint64, embed []*Row) (results []interface{}, err error) { // nolint: interfacer
func (e *executor) remoteExec(ctx context.Context, node *topology.Node, index string, q *pql.Query, shards []uint64, embed []*Row, maxMemory int64) (results []interface{}, err error) { // nolint: interfacer
span, ctx := tracing.StartSpanFromContext(ctx, "Executor.executeExec")
defer span.Finish()
@ -5569,6 +5588,7 @@ func (e *executor) remoteExec(ctx context.Context, node *topology.Node, index st
Shards: shards,
Remote: true,
EmbeddedData: embed,
MaxMemory: maxMemory,
}
resp, err := e.client.QueryNode(ctx, &node.URI, index, pbreq)
@ -5744,7 +5764,7 @@ func makeEmbeddedDataForShards(allRows []*Row, shards []uint64) []*Row {
return newRows
}
func (e *executor) mapper(ctx context.Context, eg *errgroup.Group, ch chan mapResponse, nodes []*topology.Node, index string, shards []uint64, c *pql.Call, opt *execOptions, lastAttempt bool, mapFn mapFunc, reduceFn reduceFunc) error {
func (e *executor) mapper(ctx context.Context, eg *errgroup.Group, ch chan mapResponse, nodes []*topology.Node, index string, shards []uint64, c *pql.Call, opt *execOptions, lastAttempt bool, mapFn mapFunc, reduceFn reduceFunc) (reterr error) {
span, ctx := tracing.StartSpanFromContext(ctx, "Executor.mapper")
defer span.Finish()
@ -5756,26 +5776,47 @@ func (e *executor) mapper(ctx context.Context, eg *errgroup.Group, ch chan mapRe
done := ctx.Done()
// Execute each node in a separate goroutine.
var memoryUsed int64
var mu sync.Mutex
for n, nodeShards := range m {
n := n
nodeShards := nodeShards
eg.Go(func() error {
// Execute serially max memory is specified.
if opt.MaxMemory > 0 {
mu.Lock()
defer mu.Unlock()
}
resp := mapResponse{node: n, shards: nodeShards}
// Calculate remaining memory. This applies to Extract() only.
// Default to a high number if we are not tracking memory.
memoryAvailable := opt.MaxMemory - atomic.LoadInt64(&memoryUsed)
if opt.MaxMemory <= 0 {
memoryAvailable = math.MaxInt64
}
// Send local shards to mapper, otherwise remote exec.
if n.ID == e.Node.ID {
resp.result, resp.err = e.mapperLocal(ctx, nodeShards, mapFn, reduceFn)
resp.result, resp.err = e.mapperLocal(ctx, nodeShards, mapFn, reduceFn, memoryAvailable)
} else if !opt.Remote {
var embeddedRowsForNode []*Row
if opt.EmbeddedData != nil {
embeddedRowsForNode = makeEmbeddedDataForShards(opt.EmbeddedData, nodeShards)
}
results, err := e.remoteExec(ctx, n, index, &pql.Query{Calls: []*pql.Call{c}}, nodeShards, embeddedRowsForNode)
results, err := e.remoteExec(ctx, n, index, &pql.Query{Calls: []*pql.Call{c}}, nodeShards, embeddedRowsForNode, memoryAvailable)
if len(results) > 0 {
resp.result = results[0]
}
resp.err = err
}
// Track total memory used in response.
if v := atomic.AddInt64(&memoryUsed, calcResultMemory(resp.result)); opt.MaxMemory > 0 && v > opt.MaxMemory {
return fmt.Errorf("query result exceeded memory threshold")
}
// Return response to the channel.
select {
case <-done:
@ -5801,15 +5842,42 @@ func (e *executor) mapper(ctx context.Context, eg *errgroup.Group, ch chan mapRe
}
return nil
})
if reterr != nil {
return reterr // exit early if error occurs when running serially
}
}
return nil
}
// calcResultMemory recursively computes the total memory used by v.
func calcResultMemory(v interface{}) (n int64) {
switch v := v.(type) {
case string:
case ExtractedIDColumn:
n += 8 // ColumnID
for _, row := range v.Rows {
n += 24 + int64(len(row)*8) // slice header + data
}
case ExtractedIDMatrix:
n += 24 // slice size
for _, field := range v.Fields {
n += 16 + int64(len(field)) // string header + data
}
n += 24 // Columns slice
for _, col := range v.Columns {
n += calcResultMemory(col)
}
}
return n
}
type job struct {
shard uint64
mapFn mapFunc
ctx context.Context
resultChan chan mapResponse
shard uint64
mapFn mapFunc
ctx context.Context
memoryAvailable *int64 // shared, atomic value
resultChan chan mapResponse
}
func worker(work chan job) {
@ -5821,7 +5889,7 @@ func worker(work chan job) {
j.resultChan <- mapResponse{result: nil, err: err}
continue
}
result, err := j.mapFn(j.ctx, j.shard)
result, err := j.mapFn(j.ctx, j.shard, &mapOptions{memoryAvailable: j.memoryAvailable})
j.resultChan <- mapResponse{result: result, err: err}
}
}
@ -5829,7 +5897,7 @@ func worker(work chan job) {
var errShutdown = errors.New("executor has shut down")
// mapperLocal performs map & reduce entirely on the local node.
func (e *executor) mapperLocal(ctx context.Context, shards []uint64, mapFn mapFunc, reduceFn reduceFunc) (_ interface{}, err error) {
func (e *executor) mapperLocal(ctx context.Context, shards []uint64, mapFn mapFunc, reduceFn reduceFunc, memoryAvailable int64) (_ interface{}, err error) {
span, ctx := tracing.StartSpanFromContext(ctx, "Executor.mapperLocal")
defer span.Finish()
ctx, cancel := context.WithCancel(ctx)
@ -5847,10 +5915,11 @@ func (e *executor) mapperLocal(ctx context.Context, shards []uint64, mapFn mapFu
expected := 0
for _, shard := range shards {
j := job{
shard: shard,
mapFn: mapFn,
ctx: ctx,
resultChan: ch,
shard: shard,
mapFn: mapFn,
ctx: ctx,
resultChan: ch,
memoryAvailable: &memoryAvailable,
}
select {
case <-done:
@ -7175,7 +7244,11 @@ func validateQueryContext(ctx context.Context) error {
// errShardUnavailable is a marker error if no nodes are available.
var errShardUnavailable = errors.New("shard unavailable")
type mapFunc func(ctx context.Context, shard uint64) (_ interface{}, err error)
type mapFunc func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error)
type mapOptions struct {
memoryAvailable *int64
}
type reduceFunc func(ctx context.Context, prev, v interface{}) interface{}
@ -7193,6 +7266,7 @@ type execOptions struct {
Profile bool
PreTranslated bool
EmbeddedData []*Row
MaxMemory int64
}
func needsShards(calls []*pql.Call) bool {
@ -7983,7 +8057,7 @@ func (e *executor) executeDeleteRecords(ctx context.Context, qcx *Qcx, index str
}
// Execute calls in bulk on each remote node and merge.
mapFn := func(ctx context.Context, shard uint64) (_ interface{}, err error) {
mapFn := func(ctx context.Context, shard uint64, mopt *mapOptions) (_ interface{}, err error) {
return e.executeDeleteRecordFromShard(ctx, qcx, index, c, shard)
}

View file

@ -4925,6 +4925,76 @@ func TestExecutor_Execute_Extract_Keyed(t *testing.T) {
}
}
func TestExecutor_Execute_MaxMemory(t *testing.T) {
c := test.MustRunCluster(t, 3)
defer c.Close()
c.CreateField(t, "i", pilosa.IndexOptions{TrackExistence: true}, "set")
c.ImportBits(t, "i", "set", [][2]uint64{
{0, 1},
{0, 2},
{3, 1},
{4, 1},
{4, 4 * ShardWidth},
{5, ShardWidth},
})
c.Query(t, "i", fmt.Sprintf("Clear(%d, set=5)", ShardWidth))
resp := c.GetPrimary().QueryAPI(t, &pilosa.QueryRequest{
Index: "i",
Query: `Extract(All(), Rows(set))`,
MaxMemory: 1000,
})
expect := []interface{}{
pilosa.ExtractedTable{
Fields: []pilosa.ExtractedTableField{
{
Name: "set",
Type: "[]uint64",
},
},
Columns: []pilosa.ExtractedTableColumn{
{
Column: pilosa.KeyOrID{ID: 1},
Rows: []interface{}{
[]uint64{
0,
3,
4,
},
},
},
{
Column: pilosa.KeyOrID{ID: 2},
Rows: []interface{}{
[]uint64{
0,
},
},
},
{
Column: pilosa.KeyOrID{ID: ShardWidth},
Rows: []interface{}{
[]uint64{},
},
},
{
Column: pilosa.KeyOrID{ID: 4 * ShardWidth},
Rows: []interface{}{
[]uint64{
4,
},
},
},
},
},
}
if !reflect.DeepEqual(expect, resp.Results) {
t.Errorf("expected %v but got %v", expect, resp.Results)
}
}
func TestExecutor_Execute_Rows(t *testing.T) {
c := test.MustRunCluster(t, 3)
defer c.Close()

View file

@ -51,6 +51,9 @@ type QueryRequest struct {
// Additional data associated with the query, in cases where there's
// row-style inputs for precomputed values.
EmbeddedData []*Row
// Limit on memory used by request (Extract() only)
MaxMemory int64
}
// QueryResponse represent a response from a processed query.

View file

@ -1295,6 +1295,7 @@ type QueryRequest struct {
Remote bool `protobuf:"varint,5,opt,name=Remote,proto3" json:"Remote,omitempty"`
EmbeddedData []*Row `protobuf:"bytes,8,rep,name=EmbeddedData,proto3" json:"EmbeddedData,omitempty"`
PreTranslated bool `protobuf:"varint,9,opt,name=PreTranslated,proto3" json:"PreTranslated,omitempty"`
MaxMemory int64 `protobuf:"varint,10,opt,name=MaxMemory,proto3" json:"MaxMemory,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
@ -1368,6 +1369,13 @@ func (m *QueryRequest) GetPreTranslated() bool {
return false
}
func (m *QueryRequest) GetMaxMemory() int64 {
if m != nil {
return m.MaxMemory
}
return 0
}
type QueryResponse struct {
Err string `protobuf:"bytes,1,opt,name=Err,proto3" json:"Err,omitempty"`
Results []*QueryResult `protobuf:"bytes,2,rep,name=Results,proto3" json:"Results,omitempty"`
@ -2441,104 +2449,106 @@ func init() {
func init() { proto.RegisterFile("public.proto", fileDescriptor_413a91106d7bcce8) }
var fileDescriptor_413a91106d7bcce8 = []byte{
// 1551 bytes of a gzipped FileDescriptorProto
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0x00,
}
func (m *Row) Marshal() (dAtA []byte, err error) {
@ -3639,6 +3649,11 @@ func (m *QueryRequest) MarshalToSizedBuffer(dAtA []byte) (int, error) {
i -= len(m.XXX_unrecognized)
copy(dAtA[i:], m.XXX_unrecognized)
}
if m.MaxMemory != 0 {
i = encodeVarintPublic(dAtA, i, uint64(m.MaxMemory))
i--
dAtA[i] = 0x50
}
if m.PreTranslated {
i--
if m.PreTranslated {
@ -5262,6 +5277,9 @@ func (m *QueryRequest) Size() (n int) {
if m.PreTranslated {
n += 2
}
if m.MaxMemory != 0 {
n += 1 + sovPublic(uint64(m.MaxMemory))
}
if m.XXX_unrecognized != nil {
n += len(m.XXX_unrecognized)
}
@ -8577,6 +8595,25 @@ func (m *QueryRequest) Unmarshal(dAtA []byte) error {
}
}
m.PreTranslated = bool(v != 0)
case 10:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field MaxMemory", wireType)
}
m.MaxMemory = 0
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowPublic
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
m.MaxMemory |= int64(b&0x7F) << shift
if b < 0x80 {
break
}
}
default:
iNdEx = preIndex
skippy, err := skipPublic(dAtA[iNdEx:])

View file

@ -122,6 +122,7 @@ message QueryRequest {
bool Remote = 5;
repeated Row EmbeddedData = 8;
bool PreTranslated = 9;
int64 MaxMemory = 10;
}
message QueryResponse {

View file

@ -449,8 +449,16 @@ func NewServer(opts ...ServerOption) (*Server, error) {
}
s.holderConfig.AntiEntropyInterval = s.antiEntropyInterval
memTotal, err := s.systemInfo.MemTotal()
if err != nil {
return nil, errors.Wrap(err, "mem total")
}
// set up executor after server opts have been processed
executorOpts := []executorOption{optExecutorInternalQueryClient(s.defaultClient)}
executorOpts := []executorOption{
optExecutorInternalQueryClient(s.defaultClient),
optExecutorMaxMemory(int64(float64(memTotal) * .50)),
}
if s.executorPoolSize > 0 {
executorOpts = append(executorOpts, optExecutorWorkerPoolSize(s.executorPoolSize))
}