* fix: address pr-bug-scan validated finding from #6952
throwNodeNotFound() now re-raises AbortError when the shared signal is aborted, so a signal-cancelled node probe no longer launders into 'Node.js not found'; sequential fallback runs.
* fix(ssh): make session-limited (MaxSessions=1) relay deploys actually succeed
Review of #7180 verified the parent fallback end-to-end against a real
MaxSessions=1 sshd and found the connect still failed. Four gaps, in order
of discovery:
- isSshSessionLimitError missed stock OpenSSH, which refuses session
channels over MaxSessions with SSH2_OPEN_CONNECT_FAILED (2) and 'open
failed' — reason 4 never matched, so the fallback never triggered.
- execCommand settled aborted commands before the channel finished
closing, so the sequential fallback reissued execs while sshd still
counted the old session.
- SshConnection.waitForSshCallback rejected aborts mid-channel-open
immediately, leaking a confirmed-late channel that held the only
session slot; it now settles after the late channel closes (bounded)
and drains its streams so ssh2 emits 'close'.
- Session channel opens now retry transient session-limit refusals
(sshd frees the slot only after processing our close-ack, which the
next open can beat by microseconds), and the remote orca CLI shim
install is non-fatal like the managed-hook install — after the relay
bridge occupies the sole session slot, raw-connection extras must
degrade instead of failing the connection.
Verified live against Docker sshd (OpenSSH 9.2, MaxSessions=1): fresh
deploy (upload + native deps + launch), reconnect cycles, and a PTY
round-trip all succeed; unrestricted-sshd regression run also passes.
Co-authored-by: Orca <help@stably.ai>
* Handle ssh execution aborts immediately during retry backoff or hangs
- Cancel the session-limit retry delay immediately if the operation is
aborted during backoff.
- Limit the wait time to a 5-second grace period when aborted during a
channel open that is hung and never invokes its callback, rather than
waiting for the full connection timeout.
---------
Co-authored-by: orca-bug-scan-bot <orca-bug-scan-bot@stably.ai>
Co-authored-by: Jinjing <6427696+AmethystLiang@users.noreply.github.com>
Co-authored-by: Orca <help@stably.ai>
Run independent SSH relay bootstrap probes concurrently when the connection can safely support overlapping execs. Preserve the old sequential path for system SSH without reusable ControlMaster and for remotes that reject concurrent session channels.
Brandon Barker