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Print goroutines when shutdown hangs (#8574)

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This commit is contained in:
Klaus Post 2019-11-29 06:10:08 -08:00 committed by Nitish Tiwari
parent b21835f195
commit db3dbcce3a
1 changed files with 9 additions and 0 deletions
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9
cmd/http/server.go
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@ -19,7 +19,9 @@ package http
import (
"crypto/tls"
"errors"
"io/ioutil"
"net/http"
"runtime/pprof"
"sync"
"sync/atomic"
"time"
@ -137,6 +139,13 @@ func (srv *Server) Shutdown() error {
for {
select {
case <-shutdownTimer.C:
// Write all running goroutines.
tmp, err := ioutil.TempFile("", "minio-goroutines-*.txt")
if err == nil {
_ = pprof.Lookup("goroutine").WriteTo(tmp, 1)
tmp.Close()
return errors.New("timed out. some connections are still active. doing abnormal shutdown. goroutines written to " + tmp.Name())
}
return errors.New("timed out. some connections are still active. doing abnormal shutdown")
case <-ticker.C:
if atomic.LoadInt32(&srv.requestCount) <= 0 {