microsoft / microsoft/vscode-remote-release

Various SSH timeout usability issues

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Description

Is there an existing issue for this bug?
  • I have searched the existing open issues and found none that apply.
  • If I find any issue of interest that is related or closed, I will included a link to it in this issue.
Required Troubleshooting Steps
  • I have read and performed the troubleshooting steps
  • I have tried both values of the remote.SSH.useLocalServer setting
  • My issue was not covered in the Tips and Tricks linked from the Troubleshooting Wiki.
  • I will include a complete copy of my Remote - SSH logs by running Remote-SSH: Show Log in the command palette or from View > Output in the menu bar
[Optional] Diagnose with Copilot

I did not ask the @remote-ssh participant for help

In step 2 of the troubleshooting wiki, what was the result of running the generated SSH command verbatim outside of VS Code?

I COULD successfully SSH to the remote machine with the generated SSH command

Remote-SSH Log
Remote-SSH Log 

[16:47:01.664] Log Level: 2
[16:47:01.674] SSH Resolver called for "ssh-remote+demeter6", attempt 1
[16:47:01.677] remote.SSH.useLocalServer = true
[16:47:01.677] remote.SSH.useExecServer = true
[16:47:01.677] remote.SSH.bindHost = {}
[16:47:01.677] remote.SSH.path = 
[16:47:01.677] remote.SSH.configFile = 
[16:47:01.677] remote.SSH.useFlock = true
[16:47:01.677] remote.SSH.lockfilesInTmp = false
[16:47:01.677] remote.SSH.localServerDownload = auto
[16:47:01.678] remote.SSH.remoteServerListenOnSocket = false
[16:47:01.678] remote.SSH.defaultExtensions = []
[16:47:01.678] remote.SSH.defaultExtensionsIfInstalledLocally = []
[16:47:01.678] remote.SSH.loglevel = 2
[16:47:01.678] remote.SSH.enableDynamicForwarding = true
[16:47:01.678] remote.SSH.enableRemoteCommand = false
[16:47:01.678] remote.SSH.serverPickPortsFromRange = {}
[16:47:01.678] remote.SSH.serverInstallPath = {}
[16:47:01.678] remote.SSH.permitPtyAllocation = false
[16:47:01.678] remote.SSH.preferredLocalPortRange = undefined
[16:47:01.678] remote.SSH.useCurlAndWgetConfigurationFiles = false
[16:47:01.678] remote.SSH.experimental.chat = true
[16:47:01.679] remote.SSH.experimental.enhancedSessionLogs = true
[16:47:01.679] remote.SSH.httpProxy = {"*":""}
[16:47:01.679] remote.SSH.httpsProxy = {"*":""}
[16:47:01.684] VS Code version: 1.105.0-insider
[16:47:01.684] Remote-SSH version: remote-ssh@0.120.0
[16:47:01.684] darwin arm64
[16:47:01.691] SSH Resolver called for host: demeter6
[16:47:01.691] Setting up SSH remote "demeter6"
[16:47:01.695] Acquiring local install lock: /var/folders/y3/hn1qlpx91fzc_0qnrjtg2cbw0000gn/T/vscode-remote-ssh-52011aef-install.lock
[16:47:01.696] Looking for existing server data file at /Users/keno/Library/Application Support/Code - Insiders/User/globalStorage/ms-vscode-remote.remote-ssh/vscode-ssh-host-52011aef-72f7c60cfcc01d4e8a437f4a1704b8bbd3229411-0.120.0-es/data.json
[16:47:01.696] No existing data file
[16:47:01.696] Using commit id "72f7c60cfcc01d4e8a437f4a1704b8bbd3229411" and quality "insider" for server
[16:47:01.696] Extensions to install: 
[16:47:01.699] Install and start server if needed
[16:47:01.701] PATH: /Users/keno/.juliaup/bin:/Users/keno/.opam/default/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/Library/Apple/usr/bin:/Users/keno/.cargo/bin
[16:47:01.701] Checking ssh with "ssh -V"
[16:47:01.706] > OpenSSH_9.9p2, LibreSSL 3.3.6

[16:47:01.709] askpass server listening on /var/folders/y3/hn1qlpx91fzc_0qnrjtg2cbw0000gn/T/vscode-ssh-askpass-030e714a00959e78499f8a441cc1c6a9bc8bc5d3.sock
[16:47:01.709] Spawning local server with {"serverId":1,"ipcHandlePath":"/var/folders/y3/hn1qlpx91fzc_0qnrjtg2cbw0000gn/T/vscode-ssh-askpass-b875cdbb2c54e4c2a828a3f0ed8788e9286633b3.sock","sshCommand":"ssh","sshArgs":["-v","-T","-D","50176","-o","ConnectTimeout=15","demeter6"],"serverDataFolderName":".vscode-server-insiders","dataFilePath":"/Users/keno/Library/Application Support/Code - Insiders/User/globalStorage/ms-vscode-remote.remote-ssh/vscode-ssh-host-52011aef-72f7c60cfcc01d4e8a437f4a1704b8bbd3229411-0.120.0-es/data.json"}
[16:47:01.709] Local server env: {"SSH_AUTH_SOCK":"/private/tmp/com.apple.launchd.BRM0B9lxgg/Listeners","SHELL":"/bin/zsh","DISPLAY":"1","ELECTRON_RUN_AS_NODE":"1","SSH_ASKPASS":"/Users/keno/.vscode-insiders/extensions/ms-vscode-remote.remote-ssh-0.120.0/out/local-server/askpass.sh","VSCODE_SSH_ASKPASS_NODE":"/Applications/Visual Studio Code - Insiders.app/Contents/Frameworks/Code - Insiders Helper (Plugin).app/Contents/MacOS/Code - Insiders Helper (Plugin)","VSCODE_SSH_ASKPASS_EXTRA_ARGS":"","VSCODE_SSH_ASKPASS_MAIN":"/Users/keno/.vscode-insiders/extensions/ms-vscode-remote.remote-ssh-0.120.0/out/askpass-main.js","VSCODE_SSH_ASKPASS_HANDLE":"/var/folders/y3/hn1qlpx91fzc_0qnrjtg2cbw0000gn/T/vscode-ssh-askpass-030e714a00959e78499f8a441cc1c6a9bc8bc5d3.sock"}
[16:47:01.709] Spawned 51064
[16:47:01.710] Using connect timeout of 17 seconds
[16:47:01.794] > local-server-1> Running ssh connection command: ssh -v -T -D 50176 -o ConnectTimeout=15 demeter6
[16:47:01.795] > local-server-1> Spawned ssh, pid=51071
[16:47:01.799] stderr> OpenSSH_9.9p2, LibreSSL 3.3.6
[16:47:18.716] Terminating local server
[16:47:18.720] Resolver error: Error: Connecting with SSH timed out
    at y.Timeout (/Users/keno/.vscode-insiders/extensions/ms-vscode-remote.remote-ssh-0.120.0/out/extension.js:2:744895)
    at Timeout._onTimeout (/Users/keno/.vscode-insiders/extensions/ms-vscode-remote.remote-ssh-0.120.0/out/extension.js:2:805797)
    at listOnTimeout (node:internal/timers:588:17)
    at process.processTimers (node:internal/timers:523:7)
[16:47:18.728] ------




[16:47:18.729]  ---------- [Session Summary] ----------- 
[16:47:18.729] [Timeout]: Error: Timeout (Connecting with SSH timed out)
[16:47:18.729]  ---------------------------------------- 
[16:47:18.731] Local server exit: 15
[16:47:19.081] Opening exec server for ssh-remote+demeter6
[16:47:19.114] Opening exec server for ssh-remote+demeter6
[16:47:19.147] Initizing new exec server for ssh-remote+demeter6
[16:47:19.148] Acquiring local install lock: /var/folders/y3/hn1qlpx91fzc_0qnrjtg2cbw0000gn/T/vscode-remote-ssh-52011aef-install.lock
[16:47:19.148] Looking for existing server data file at /Users/keno/Library/Application Support/Code - Insiders/User/globalStorage/ms-vscode-remote.remote-ssh/vscode-ssh-host-52011aef-72f7c60cfcc01d4e8a437f4a1704b8bbd3229411-0.120.0-es/data.json
[16:47:19.148] No existing data file
[16:47:19.148] Using commit id "72f7c60cfcc01d4e8a437f4a1704b8bbd3229411" and quality "insider" for server
[16:47:19.148] Extensions to install: 
[16:47:19.150] Install and start server if needed
[16:47:19.152] askpass server listening on /var/folders/y3/hn1qlpx91fzc_0qnrjtg2cbw0000gn/T/vscode-ssh-askpass-160f20a541700d9a0b577bd09a92a651164d038f.sock
[16:47:19.153] Spawning local server with {"serverId":2,"ipcHandlePath":"/var/folders/y3/hn1qlpx91fzc_0qnrjtg2cbw0000gn/T/vscode-ssh-askpass-c5a065c0d71e27c48b8030402af1123a3eabf8f8.sock","sshCommand":"ssh","sshArgs":["-v","-T","-D","50176","-o","ConnectTimeout=15","demeter6"],"serverDataFolderName":".vscode-server-insiders","dataFilePath":"/Users/keno/Library/Application Support/Code - Insiders/User/globalStorage/ms-vscode-remote.remote-ssh/vscode-ssh-host-52011aef-72f7c60cfcc01d4e8a437f4a1704b8bbd3229411-0.120.0-es/data.json"}
[16:47:19.153] Local server env: {"SSH_AUTH_SOCK":"/private/tmp/com.apple.launchd.BRM0B9lxgg/Listeners","SHELL":"/bin/zsh","DISPLAY":"1","ELECTRON_RUN_AS_NODE":"1","SSH_ASKPASS":"/Users/keno/.vscode-insiders/extensions/ms-vscode-remote.remote-ssh-0.120.0/out/local-server/askpass.sh","VSCODE_SSH_ASKPASS_NODE":"/Applications/Visual Studio Code - Insiders.app/Contents/Frameworks/Code - Insiders Helper (Plugin).app/Contents/MacOS/Code - Insiders Helper (Plugin)","VSCODE_SSH_ASKPASS_EXTRA_ARGS":"","VSCODE_SSH_ASKPASS_MAIN":"/Users/keno/.vscode-insiders/extensions/ms-vscode-remote.remote-ssh-0.120.0/out/askpass-main.js","VSCODE_SSH_ASKPASS_HANDLE":"/var/folders/y3/hn1qlpx91fzc_0qnrjtg2cbw0000gn/T/vscode-ssh-askpass-160f20a541700d9a0b577bd09a92a651164d038f.sock"}
[16:47:19.153] Spawned 51073
[16:47:19.153] Using connect timeout of 17 seconds
[16:47:19.235] > local-server-2> Running ssh connection command: ssh -v -T -D 50176 -o ConnectTimeout=15 demeter6
[16:47:19.237] > local-server-2> Spawned ssh, pid=51080
[16:47:19.240] stderr> OpenSSH_9.9p2, LibreSSL 3.3.6
[16:47:35.392] stderr> debug1: Server host key: ssh-ed25519 SHA256:/Dgy2jbOl3X2F1lC5TFQsu2UW2obu+A9ObXMLQlNiGw
[16:47:36.156] Terminating local server
[16:47:36.156] Exec server for ssh-remote+demeter6 failed: Error: Connecting with SSH timed out
[16:47:36.156] Existing exec server for ssh-remote+demeter6 errored (Error: Connecting with SSH timed out)
[16:47:36.157] Initizing new exec server for ssh-remote+demeter6
[16:47:36.157] Acquiring local install lock: /var/folders/y3/hn1qlpx91fzc_0qnrjtg2cbw0000gn/T/vscode-remote-ssh-52011aef-install.lock
[16:47:36.157] Error opening exec server for ssh-remote+demeter6: Error: Connecting with SSH timed out
[16:47:36.158]  ---------- [Session Summary] ----------- 
[16:47:36.158] [Timeout]: Error: Timeout (Connecting with SSH timed out)
[16:47:36.158]  ---------------------------------------- 
[16:47:36.159] Looking for existing server data file at /Users/keno/Library/Application Support/Code - Insiders/User/globalStorage/ms-vscode-remote.remote-ssh/vscode-ssh-host-52011aef-72f7c60cfcc01d4e8a437f4a1704b8bbd3229411-0.120.0-es/data.json
[16:47:36.159] No existing data file
[16:47:36.160] Using commit id "72f7c60cfcc01d4e8a437f4a1704b8bbd3229411" and quality "insider" for server
[16:47:36.160] Extensions to install: 
[16:47:36.163] Install and start server if needed
[16:47:36.163] Local server exit: 15
[16:47:36.167] askpass server listening on /var/folders/y3/hn1qlpx91fzc_0qnrjtg2cbw0000gn/T/vscode-ssh-askpass-1be5dfaa7b95379c22ffcc4edc7fc1fc4a6c53bb.sock
[16:47:36.168] Spawning local server with {"serverId":3,"ipcHandlePath":"/var/folders/y3/hn1qlpx91fzc_0qnrjtg2cbw0000gn/T/vscode-ssh-askpass-b09176ea9c4c7ff8909010617491ab640263d44b.sock","sshCommand":"ssh","sshArgs":["-v","-T","-D","50176","-o","ConnectTimeout=15","demeter6"],"serverDataFolderName":".vscode-server-insiders","dataFilePath":"/Users/keno/Library/Application Support/Code - Insiders/User/globalStorage/ms-vscode-remote.remote-ssh/vscode-ssh-host-52011aef-72f7c60cfcc01d4e8a437f4a1704b8bbd3229411-0.120.0-es/data.json"}
[16:47:36.168] Local server env: {"SSH_AUTH_SOCK":"/private/tmp/com.apple.launchd.BRM0B9lxgg/Listeners","SHELL":"/bin/zsh","DISPLAY":"1","ELECTRON_RUN_AS_NODE":"1","SSH_ASKPASS":"/Users/keno/.vscode-insiders/extensions/ms-vscode-remote.remote-ssh-0.120.0/out/local-server/askpass.sh","VSCODE_SSH_ASKPASS_NODE":"/Applications/Visual Studio Code - Insiders.app/Contents/Frameworks/Code - Insiders Helper (Plugin).app/Contents/MacOS/Code - Insiders Helper (Plugin)","VSCODE_SSH_ASKPASS_EXTRA_ARGS":"","VSCODE_SSH_ASKPASS_MAIN":"/Users/keno/.vscode-insiders/extensions/ms-vscode-remote.remote-ssh-0.120.0/out/askpass-main.js","VSCODE_SSH_ASKPASS_HANDLE":"/var/folders/y3/hn1qlpx91fzc_0qnrjtg2cbw0000gn/T/vscode-ssh-askpass-1be5dfaa7b95379c22ffcc4edc7fc1fc4a6c53bb.sock"}
[16:47:36.168] Spawned 51084
[16:47:36.169] Using connect timeout of 17 seconds
[16:47:36.677] Server delay-shutdown request failed: connect ENOENT /var/folders/y3/hn1qlpx91fzc_0qnrjtg2cbw0000gn/T/vscode-ssh-askpass-b09176ea9c4c7ff8909010617491ab640263d44b.sock
[16:47:38.683] Server delay-shutdown request failed: connect ENOENT /var/folders/y3/hn1qlpx91fzc_0qnrjtg2cbw0000gn/T/vscode-ssh-askpass-b09176ea9c4c7ff8909010617491ab640263d44b.sock
[16:47:39.296] > local-server-3> Running ssh connection command: ssh -v -T -D 50176 -o ConnectTimeout=15 demeter6
[16:47:39.297] > local-server-3> Spawned ssh, pid=51091
[16:47:39.301] stderr> OpenSSH_9.9p2, LibreSSL 3.3.6
[16:47:53.171] Terminating local server
[16:47:53.172] Exec server for ssh-remote+demeter6 failed: Error: Connecting with SSH timed out
[16:47:53.172] Error opening exec server for ssh-remote+demeter6: Error: Connecting with SSH timed out
[16:47:53.172]  ---------- [Session Summary] ----------- 
[16:47:53.172] [Timeout]: Error: Timeout (Connecting with SSH timed out)
[16:47:53.173]  ---------------------------------------- 
[16:47:53.178] Local server exit: 15

Expected Behavior

I am currently on a high-latency connection (GEO sat -> US -> EU -> US and back). The 15 second default timeout is insufficient to establish an ssh connection, so I get a timeout warning. This by itself is fine, but I would have expected some easy way to recover from this and retry with a higher timeout. Perhaps the Retry option itself should bump the timeout temporarily or there could be a separate Retry with higher timeout option.

Actual Behavior

I get the options Retry, Close Remote and More Actions. Retry is gets me back to the same place. Under More Actions, I get Open Settings which sounds promising to adjust the timeout, except that it doesn't actually let me touch the settings while in the SSH timeout failed state:

Image

In order to change the settings value, I first need to close the remote connection, then open settings and then re-open the remote connection. This seems way too cumbersome.

Steps To Reproduce

Fly to Europe, try to use VS Code Remote in-flight.

Anything else?

No response

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The issue names no source file or test. Start by reproducing the timeout from the Remote-SSH log using the generated SSH command and compare behavior with remote.SSH.useLocalServer enabled and disabled. Done would require a clearly defined resolution for the reported timeout usability issues, but the issue does not specify one.

Written by the indexing model from the issue text.

Assessment

Tech stack
vscode
Domain
devtools, networking
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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