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Writes to stdin not recevied directly #1768
Description
Hi, I'm a little stuck right now. I'm runing a java application inside a docker container and I want to send a command to it. I'm using the following code to attach to the container:
this.stdOut = new PipedOutputStream();
this.stdIn = new PipedInputStream(this.stdOut);
this.dockerClient.attachContainerCmd(this.containerId)
.withLogs(true)
.withStdOut(true)
.withStdErr(true)
.withStdIn(this.stdIn)
.withTimestamps(false)
.withFollowStream(true)
.exec(new ServiceLogCacheAdapter());Everything works fine and I can receive data written to stdout/stderr. But when I try to send data to the stdout stream the data is not received by the application until the application sends out a message to std out/err. I'm currently not sure if this is an issue on my end and I'm hoping someone can help me with this. Thanks in advance!
Activity
derklaro commentedon Dec 30, 2021
I went a bit further into this issue. It looks like the
FramedInputStreamConsumercallsreadon the response input stream of the request (which normally is correct). But it locks the underlying Channel waiting for input and releasing it's lock when input is available meaning that the lock gets released and the write can obtain it. 🤔Use a non-blocking output stream for socket writes (#1769)