I changed my code
ManagedChannelBuilder.forAddress("localhost", port).usePlaintext().build();
to
ManagedChannelBuilder.forAddress("localhost", port).forAddress("127.0.0.1",
port).usePlaintext().build();
, this seems to succeed, no errors occurred, very strange
在2021年6月15日星期二 UTC+8 上午11:34:46<李灵韬> 写道：
> Caused by:
> io.grpc.netty.shaded.io.netty.channel.AbstractChannel$AnnotatedConnectException:
>
> Connection refused: no further information: /127.0.0.1:50051
> Caused by: java.net.ConnectException: Connection refused: no further
> information
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> at sun.nio.ch.SocketChannelImpl.finishConnect(Unknown Source)
> at
> io.grpc.netty.shaded.io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:330)
> at
> io.grpc.netty.shaded.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:334)
> at
> io.grpc.netty.shaded.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:702)
> at
> io.grpc.netty.shaded.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:650)
> at
> io.grpc.netty.shaded.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:576)
> at
> io.grpc.netty.shaded.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)
> at
> io.grpc.netty.shaded.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
> at
> io.grpc.netty.shaded.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
> at
> io.grpc.netty.shaded.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> at java.lang.Thread.run(Unknown Source)
>
> 在2021年6月15日星期二 UTC+8 上午10:49:23<李灵韬> 写道：
>
>> Do I need to provide more information?
>>
>> 在2021年6月15日星期二 UTC+8 上午10:45:28<李灵韬> 写道：
>>
>>> I recently added grpc to my app, but it occasionally reports errors,
>>> which cannot be reproduced stably.
>>> Console output:
>>> java.util.concurrent.ExecutionException: io.grpc.StatusRuntimeException:
>>> UNAVAILABLE: io exception
>>> at
>>> com.google.common.util.concurrent.AbstractFuture.getDoneValue(AbstractFuture.java:566)
>>> at
>>> com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:547)
>>>
>>> My client uses Java, the server uses Python, and the grpc version is
>>> 1.36.0
>>>
>>
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