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Posted to notifications@dubbo.apache.org by GitBox <gi...@apache.org> on 2021/08/20 10:31:38 UTC
[GitHub] [dubbo-go] wangxw666 opened a new issue #1406: grpc goroutine optimize
wangxw666 opened a new issue #1406:
URL: https://github.com/apache/dubbo-go/issues/1406
环境：
- 注册中心： zk
- 协议：grpc
- dubbo-go 版本：1.5.7-rc2
问题：
消费者一个服务，提供者每增加一个实例都会创建6个协程。
查看pprof：
```
goroutine profile: total 44
5 @ 0x43bba0 0x407a25 0x4076db 0x8dddfa 0x46be31
# 0x8dddf9 google.golang.org/grpc.(*addrConn).resetTransport+0x6e9 /home/gopath/pkg/mod/google.golang.org/grpc@v1.38.0/clientconn.go:1214
5 @ 0x43bba0 0x43481a 0x433d85 0x4d91f5 0x4da08b 0x4da06d 0x65656f 0x66927e 0x5a4ccf 0x4d67c7 0x83d047 0x83cffa 0x83d881 0x8645a9 0x46be31
# 0x433d84 internal/poll.runtime_pollWait+0x54 /home/go/src/runtime/netpoll.go:203
# 0x4d91f4 internal/poll.(*pollDesc).wait+0x44 /home/go/src/internal/poll/fd_poll_runtime.go:87
# 0x4da08a internal/poll.(*pollDesc).waitRead+0x19a /home/go/src/internal/poll/fd_poll_runtime.go:92
# 0x4da06c internal/poll.(*FD).Read+0x17c /home/go/src/internal/poll/fd_unix.go:169
# 0x65656e net.(*netFD).Read+0x4e /home/go/src/net/fd_unix.go:202
# 0x66927d net.(*conn).Read+0x8d /home/go/src/net/net.go:184
# 0x5a4cce bufio.(*Reader).Read+0x24e /home/go/src/bufio/bufio.go:226
# 0x4d67c6 io.ReadAtLeast+0x86 /home/go/src/io/io.go:310
# 0x83d046 io.ReadFull+0x86 /home/go/src/io/io.go:329
# 0x83cff9 golang.org/x/net/http2.readFrameHeader+0x39 /home/gopath/pkg/mod/golang.org/x/net@v0.0.0-20201202161906-c7110b5ffcbb/http2/frame.go:237
# 0x83d880 golang.org/x/net/http2.(*Framer).ReadFrame+0xa0 /home/gopath/pkg/mod/golang.org/x/net@v0.0.0-20201202161906-c7110b5ffcbb/http2/frame.go:492
# 0x8645a8 google.golang.org/grpc/internal/transport.(*http2Client).reader+0x178 /home/gopath/pkg/mod/google.golang.org/grpc@v1.38.0/internal/transport/http2_client.go:1347
5 @ 0x43bba0 0x44bf91 0x853052 0x85395d 0x87757b 0x46be31
# 0x853051 google.golang.org/grpc/internal/transport.(*controlBuffer).get+0x121 /home/gopath/pkg/mod/google.golang.org/grpc@v1.38.0/internal/transport/controlbuf.go:407
# 0x85395c google.golang.org/grpc/internal/transport.(*loopyWriter).run+0x1cc /home/gopath/pkg/mod/google.golang.org/grpc@v1.38.0/internal/transport/controlbuf.go:527
# 0x87757a google.golang.org/grpc/internal/transport.newHTTP2Client.func3+0x7a /home/gopath/pkg/mod/google.golang.org/grpc@v1.38.0/internal/transport/http2_client.go:396
5 @ 0x43bba0 0x44bf91 0x8d5792 0x46be31
# 0x8d5791 google.golang.org/grpc.(*ccBalancerWrapper).watcher+0xc1 /home/gopath/pkg/mod/google.golang.org/grpc@v1.38.0/balancer_conn_wrappers.go:69
5 @ 0x43bba0 0x44bf91 0xc853b6 0xc896c8 0x46be31
# 0xc853b5 github.com/apache/dubbo-go/remoting/zookeeper.(*ZkEventListener).listenServiceNodeEvent+0x195 /home/gopath/pkg/mod/github.com/apache/dubbo-go@v1.5.7-rc2-0.20210809082309-ace2a0e6c0f9/remoting/zookeeper/listener.go:94
# 0xc896c7 github.com/apache/dubbo-go/remoting/zookeeper.(*ZkEventListener).listenDirEvent.func1+0x97 /home/gopath/pkg/mod/github.com/apache/dubbo-go@v1.5.7-rc2-0.20210809082309-ace2a0e6c0f9/remoting/zookeeper/listener.go:309
3 @ 0x43bba0 0x44bf91 0xc853b6 0xc8942a 0x46be31
# 0xc853b5 github.com/apache/dubbo-go/remoting/zookeeper.(*ZkEventListener).listenServiceNodeEvent+0x195 /home/gopath/pkg/mod/github.com/apache/dubbo-go@v1.5.7-rc2-0.20210809082309-ace2a0e6c0f9/remoting/zookeeper/listener.go:94
# 0xc89429 github.com/apache/dubbo-go/remoting/zookeeper.(*ZkEventListener).handleZkNodeEvent.func2+0x89 /home/gopath/pkg/mod/github.com/apache/dubbo-go@v1.5.7-rc2-0.20210809082309-ace2a0e6c0f9/remoting/zookeeper/listener.go:181
```
provider每增加一个实例，消费者都会创建上面的每一个协程，共6个
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[GitHub] [dubbo-go] wangxw666 closed issue #1406: grpc goroutine optimize
Posted by GitBox <gi...@apache.org>.
wangxw666 closed issue #1406:
URL: https://github.com/apache/dubbo-go/issues/1406
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