alexmherrmann opened a new issue, #426:
URL: https://github.com/apache/mina-sshd/issues/426
### Version
2.11.0
### Bug description
I have not found any examples of what I am trying to do in official
documentation.
I have two tests here (in kotlin):
```kotlin
package minatest
import com.google.common.truth.Truth
import org.apache.sshd.client.SshClient
import org.junit.jupiter.api.MethodOrderer.OrderAnnotation
import org.junit.jupiter.api.Order
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.TestMethodOrder
import org.junit.jupiter.api.Timeout
import org.slf4j.LoggerFactory
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.boot.test.context.SpringBootTest
import org.springframework.test.context.ActiveProfiles
import reactor.kotlin.test.test
import java.time.Duration.ofSeconds
import java.util.concurrent.CountDownLatch
import java.util.concurrent.TimeUnit.SECONDS
val client = SshClient.setUpDefaultClient().apply {
start()
}
@Test
fun sanityTest() {
val instance =
requestor.getExistingInstance(existingInstance).block(ofSeconds(5))
val ipv4 = instance.getPublicIpv4Address()
val connection = client.connect(
"root",
ipv4,
22
).verify(ofSeconds(5))
val output = connection
.session
.run {
auth().verify(ofSeconds(5))
executeRemoteCommand("uptime")
}
logger.info("Output: $output")
}
@Test
fun secondSanityNowAsync() {
val instance = requestor
.getExistingInstance(existingInstance)
.block(ofSeconds(10))
val connected = client.connect("root",
instance.getPublicIpv4Address(), 22)
val blocker = CountDownLatch(1)
connected.addListener { conn ->
logger.info("Connected: $conn")
val sesh = conn.session
val auth = sesh.auth().addListener { authed ->
conn.verify(0)
authed.verify(0)
logger.info("Authed: $authed")
val output = sesh.executeRemoteCommand("uptime")
logger.info("Output: $output")
Truth.assertThat(output).contains("load")
// NOTIFY OF COMPLETION
blocker.countDown()
}
}
assert(blocker.await(10, SECONDS))
}
```
The synchronous one works just fine. I call verify twice and then I am set
up to go. However I'm going for an async architecture and would rather do
something like the second as it will eventually be integrated into a project
reactor application.
The first one runs just fine, the second one hangs forever on the
`connected.session.executeRemoteCommand(...)`. Setting a breakpoint it makes it
all the way to the second listener (i.e. I get the "Authed: ..." log message)
and then never makes it to the "Output: ".
### Actual behavior
The test fails to complete in any amount of time.
### Expected behavior
The `executeRemoteCommand` should execute
### Relevant log output
```Shell
From the run where it hangs:
2023-10-24T14:27:51,113 DEBUG [sshd-SshClient[15fdd1f2]-nio2-thread-9]
o.a.s.c.s.AbstractClientSession:
createExecChannel(ClientSessionImpl[root@/142.93.54.117:22])[uptime] created
id=0 - PTY=null
2023-10-24T14:27:51,113 DEBUG [sshd-SshClient[15fdd1f2]-nio2-thread-9]
o.a.s.c.c.AbstractClientChannel: open(ChannelExec[id=0,
recipient=-1]-ClientSessionImpl[root@/142.93.54.117:22]) Send
SSH_MSG_CHANNEL_OPEN - type=session
2023-10-24T14:27:51,113 DEBUG [sshd-SshClient[15fdd1f2]-nio2-thread-9]
o.a.s.c.s.h.AbstractSession: encode(ClientSessionImpl[root@/142.93.54.117:22])
packet #7 sending command=90[SSH_MSG_CHANNEL_OPEN] len=24
2023-10-24T14:27:51,113 DEBUG [sshd-SshClient[15fdd1f2]-nio2-thread-9]
o.a.s.c.i.n.Nio2Session: writeBuffer(Nio2Session[local=/192.168.86.247:63735,
remote=/142.93.54.117:22]) writing 60 bytes
java.lang.AssertionError: Assertion failed (on the countdownlatch block)
The last few logs from when it runs successfully:
2023-10-24T14:15:39,701 DEBUG [main] o.a.s.c.s.AbstractClientSession:
createExecChannel(ClientSessionImpl[root@/142.93.54.117:22])[uptime] created
id=0 - PTY=null
2023-10-24T14:15:39,702 DEBUG [main] o.a.s.c.c.AbstractClientChannel:
open(ChannelExec[id=0, recipient=-1]-ClientSessionImpl[root@/142.93.54.117:22])
Send SSH_MSG_CHANNEL_OPEN - type=session
2023-10-24T14:15:39,702 DEBUG [main] o.a.s.c.s.h.AbstractSession:
encode(ClientSessionImpl[root@/142.93.54.117:22]) packet #7 sending
command=90[SSH_MSG_CHANNEL_OPEN] len=24
2023-10-24T14:15:39,702 DEBUG [main] o.a.s.c.i.n.Nio2Session:
writeBuffer(Nio2Session[local=/192.168.86.247:63598, remote=/142.93.54.117:22])
writing 60 bytes
2023-10-24T14:15:40,374 DEBUG [sshd-SshClient[15fb7a32]-nio2-thread-11]
o.a.s.c.s.h.AbstractSession:
doHandleMessage(ClientSessionImpl[root@/142.93.54.117:22]) process #8
SSH_MSG_GLOBAL_REQUEST
2023-10-24T14:15:40,375 DEBUG [sshd-SshClient[15fb7a32]-nio2-thread-11]
o.a.s.c.s.h.AbstractConnectionService:
globalRequest(ClientConnectionService[ClientSessionImpl[root@/142.93.54.117:22]])
received SSH_MSG_GLOBAL_REQUEST hostkeys...@openssh.com want-reply=false
```
### Other information
_No response_
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: dev-unsubscr...@mina.apache.org.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@mina.apache.org
For additional commands, e-mail: dev-h...@mina.apache.org
