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Fix race conditions during in-flight size checks (#3505)

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Patrick Schmidt 2022-08-25 05:03:34 +02:00 committed by GitHub
parent 7b424a54dc
commit 2930263dfd
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 22 additions and 13 deletions
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2
weed/filer/reader_cache.go
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@ -186,8 +186,8 @@ func (s *SingleChunkCacher) destroy() {
if s.data != nil {
mem.Free(s.data)
s.data = nil
close(s.cacheStartedCh)
}
close(s.cacheStartedCh)
}
func (s *SingleChunkCacher) readChunkAt(buf []byte, offset int64) (int, error) {

13
weed/server/filer_server_handlers.go
View File

@ -2,14 +2,15 @@ package weed_server
import (
"errors"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/security"
"github.com/seaweedfs/seaweedfs/weed/util"
"net/http"
"strings"
"sync/atomic"
"time"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/security"
"github.com/seaweedfs/seaweedfs/weed/util"
"github.com/seaweedfs/seaweedfs/weed/stats"
)
@ -63,9 +64,11 @@ func (fs *FilerServer) filerHandler(w http.ResponseWriter, r *http.Request) {
// wait until in flight data is less than the limit
contentLength := getContentLength(r)
fs.inFlightDataLimitCond.L.Lock()
for fs.option.ConcurrentUploadLimit != 0 && atomic.LoadInt64(&fs.inFlightDataSize) > fs.option.ConcurrentUploadLimit {
glog.V(4).Infof("wait because inflight data %d > %d", fs.inFlightDataSize, fs.option.ConcurrentUploadLimit)
inFlightDataSize := atomic.LoadInt64(&fs.inFlightDataSize)
for fs.option.ConcurrentUploadLimit != 0 && inFlightDataSize > fs.option.ConcurrentUploadLimit {
glog.V(4).Infof("wait because inflight data %d > %d", inFlightDataSize, fs.option.ConcurrentUploadLimit)
fs.inFlightDataLimitCond.Wait()
inFlightDataSize = atomic.LoadInt64(&fs.inFlightDataSize)
}
fs.inFlightDataLimitCond.L.Unlock()
atomic.AddInt64(&fs.inFlightDataSize, contentLength)

20
weed/server/volume_server_handlers.go
View File

@ -45,15 +45,17 @@ func (vs *VolumeServer) privateStoreHandler(w http.ResponseWriter, r *http.Reque
case "GET", "HEAD":
stats.ReadRequest()
vs.inFlightDownloadDataLimitCond.L.Lock()
for vs.concurrentDownloadLimit != 0 && atomic.LoadInt64(&vs.inFlightDownloadDataSize) > vs.concurrentDownloadLimit {
inFlightDownloadSize := atomic.LoadInt64(&vs.inFlightDownloadDataSize)
for vs.concurrentDownloadLimit != 0 && inFlightDownloadSize > vs.concurrentDownloadLimit {
select {
case <-r.Context().Done():
glog.V(4).Infof("request cancelled from %s: %v", r.RemoteAddr, r.Context().Err())
return
default:
glog.V(4).Infof("wait because inflight download data %d > %d", vs.inFlightDownloadDataSize, vs.concurrentDownloadLimit)
glog.V(4).Infof("wait because inflight download data %d > %d", inFlightDownloadSize, vs.concurrentDownloadLimit)
vs.inFlightDownloadDataLimitCond.Wait()
}
inFlightDownloadSize = atomic.LoadInt64(&vs.inFlightDownloadDataSize)
}
vs.inFlightDownloadDataLimitCond.L.Unlock()
vs.GetOrHeadHandler(w, r)
@ -66,17 +68,19 @@ func (vs *VolumeServer) privateStoreHandler(w http.ResponseWriter, r *http.Reque
if r.URL.Query().Get("type") != "replicate" && vs.concurrentUploadLimit != 0 {
startTime := time.Now()
vs.inFlightUploadDataLimitCond.L.Lock()
for vs.inFlightUploadDataSize > vs.concurrentUploadLimit {
inFlightUploadDataSize := atomic.LoadInt64(&vs.inFlightUploadDataSize)
for inFlightUploadDataSize > vs.concurrentUploadLimit {
//wait timeout check
if startTime.Add(vs.inflightUploadDataTimeout).Before(time.Now()) {
vs.inFlightUploadDataLimitCond.L.Unlock()
err := fmt.Errorf("reject because inflight upload data %d > %d, and wait timeout", vs.inFlightUploadDataSize, vs.concurrentUploadLimit)
err := fmt.Errorf("reject because inflight upload data %d > %d, and wait timeout", inFlightUploadDataSize, vs.concurrentUploadLimit)
glog.V(1).Infof("too many requests: %v", err)
writeJsonError(w, r, http.StatusTooManyRequests, err)
return
}
glog.V(4).Infof("wait because inflight upload data %d > %d", vs.inFlightUploadDataSize, vs.concurrentUploadLimit)
glog.V(4).Infof("wait because inflight upload data %d > %d", inFlightUploadDataSize, vs.concurrentUploadLimit)
vs.inFlightUploadDataLimitCond.Wait()
inFlightUploadDataSize = atomic.LoadInt64(&vs.inFlightUploadDataSize)
}
vs.inFlightUploadDataLimitCond.L.Unlock()
}
@ -121,9 +125,11 @@ func (vs *VolumeServer) publicReadOnlyHandler(w http.ResponseWriter, r *http.Req
case "GET", "HEAD":
stats.ReadRequest()
vs.inFlightDownloadDataLimitCond.L.Lock()
for vs.concurrentDownloadLimit != 0 && atomic.LoadInt64(&vs.inFlightDownloadDataSize) > vs.concurrentDownloadLimit {
glog.V(4).Infof("wait because inflight download data %d > %d", vs.inFlightDownloadDataSize, vs.concurrentDownloadLimit)
inFlightDownloadSize := atomic.LoadInt64(&vs.inFlightDownloadDataSize)
for vs.concurrentDownloadLimit != 0 && inFlightDownloadSize > vs.concurrentDownloadLimit {
glog.V(4).Infof("wait because inflight download data %d > %d", inFlightDownloadSize, vs.concurrentDownloadLimit)
vs.inFlightDownloadDataLimitCond.Wait()
inFlightDownloadSize = atomic.LoadInt64(&vs.inFlightDownloadDataSize)
}
vs.inFlightDownloadDataLimitCond.L.Unlock()
vs.GetOrHeadHandler(w, r)