Skip to content

Commit 95063e0

Browse files
author
intern_nemotron_worker_4
committed
task342 classify nemtron access blocker
1 parent 7575dc2 commit 95063e0

5 files changed

Lines changed: 246 additions & 6 deletions

File tree

‎workspace/interns/intern_nemotron_worker_4/status.md‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -1,14 +1,14 @@
11
# intern_nemotron_worker_4 - status
22

3-
<!-- METADATA:STATUS=Working,TASK=task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1,ROLE=worker,TEAM_ID=nemotron -->
3+
<!-- METADATA:STATUS=ReadyForPR,TASK=task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1,ROLE=worker,TEAM_ID=nemotron -->
44

55
| Field | Value |
66
|------|-----|
77
| Name | intern_nemotron_worker_4 |
8-
| Status | Working |
8+
| Status | ReadyForPR |
99
| Role | worker |
1010
| Team | nemotron |
1111
| Current Task | task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1 |
1212
| PR | pending |
1313
| Session | 91 |
14-
| Progress | Accepted task342 on branch `intern_nemotron_worker_4/task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1` from `origin/main` `371aea491776cc258e1cbb59a081d28be0530438`, with lead docs imported from `origin/intern_nemotron_lead/session1-recovery-task-docs` `c7a417d11cde7935be6f7abdc463426504dfbd33`. Scope is no-training/no-eval `NemTron` SSH/runtime access recovery or exact blocker classification only. No optimizer/training/eval/export/endpoint/promotion/task255/AIME2025 train rows/shared deletion/product-code edit/main push/merge/self-merge. |
14+
| Progress | Completed task342 no-training/no-eval `NemTron` SSH/runtime access recovery probe. Disposition: `BLOCK_NEMTRON_ACCESS`. Artifact root `/work-agents/intern_nemotron_worker_4/outputs/task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1/run_20260604T124233Z`. `ssh NemTron` rc `255`; proxy hop reachable, but proxy-side TCP connect to configured target `10.100.2.62:33808` is connection refused. `/root`, task337 runtime target, task298 checkpoint candidate, task339 train-only root, and runtime imports are not testable until target host/port/service is restored or route replaced. No optimizer/training/eval/export/endpoint/promotion/task255/AIME2025 train rows/shared deletion/product-code edit/main push/merge/self-merge. |

‎workspace/tasks/task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1/README.md‎

Lines changed: 14 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
11
# task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1 - NemTron access recovery
22

3-
<!-- METADATA:STATUS=InProgress,ASSIGNEE=intern_nemotron_worker_4,SESSION=91 -->
3+
<!-- METADATA:STATUS=ReadyForPR,ASSIGNEE=intern_nemotron_worker_4,SESSION=91 -->
44

55
## Background
66

@@ -100,3 +100,16 @@ Return exactly one disposition:
100100
- Boundary confirmation: no optimizer/training/eval/export/endpoint/promotion,
101101
task255 reuse, AIME2025 train rows, shared deletion/mutation, product-code
102102
edits, main push, merge, or self-merge.
103+
104+
## Worker_4 Review Result
105+
106+
- Completed: `2026-06-04T12:45:10Z`.
107+
- Report:
108+
`workspace/tasks/task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1/nemtron_access_recovery_report.md`.
109+
- Artifact root:
110+
`/work-agents/intern_nemotron_worker_4/outputs/task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1/run_20260604T124233Z`.
111+
- Disposition: `BLOCK_NEMTRON_ACCESS`.
112+
- Summary: `ssh NemTron` still returns rc `255`; the proxy hop is reachable,
113+
but proxy-side TCP connection to configured target `10.100.2.62:33808`
114+
returns connection refused. task341 should not be rerun until target
115+
host/port/service is restored or replaced by a lead-approved route.

‎workspace/tasks/task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1/history_log.md‎

Lines changed: 16 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
11
# task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1 - history
22

3-
<!-- METADATA:STATUS=InProgress,ASSIGNEE=intern_nemotron_worker_4,SESSION=91 -->
3+
<!-- METADATA:STATUS=ReadyForPR,ASSIGNEE=intern_nemotron_worker_4,SESSION=91 -->
44

55
## 2026-06-04 UTC - Assigned
66

@@ -27,3 +27,18 @@
2727
- Boundaries acknowledged: no optimizer/training/eval/export/endpoint/
2828
promotion/task255/AIME2025 train rows/shared deletion/product-code edit/main
2929
push/merge/self-merge.
30+
31+
## 2026-06-04 UTC - Access probe complete
32+
33+
- Created artifact root
34+
`/work-agents/intern_nemotron_worker_4/outputs/task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1/run_20260604T124233Z`.
35+
- Captured non-secret `ssh -G NemTron` route summary.
36+
- Ran required `ssh -o ConnectTimeout=10 NemTron 'hostname; date -u +%Y-%m-%dT%H:%M:%SZ'`;
37+
result rc `255`, stderr `channel 0: open failed: connect failed:
38+
Connection refused`.
39+
- Confirmed proxy hop is reachable and authenticates as
40+
`ssh-proxy-deployment-64fbf5f7d5-4flbz`.
41+
- Confirmed proxy-side TCP connection to configured target
42+
`10.100.2.62:33808` is refused.
43+
- Recorded disposition `BLOCK_NEMTRON_ACCESS` in
44+
`nemtron_access_recovery_report.md`.

‎workspace/tasks/task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1/nemtron_access_recovery_report.md‎

Lines changed: 206 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,206 @@
1+
# task342 NemTron SSH/runtime access recovery report
2+
3+
<!-- METADATA:STATUS=ReadyForPR,DISPOSITION=BLOCK_NEMTRON_ACCESS,SESSION=91 -->
4+
5+
Generated: 2026-06-04T12:45:10Z
6+
7+
## Decision
8+
9+
`BLOCK_NEMTRON_ACCESS`.
10+
11+
The current `NemTron` SSH alias still cannot reach the target runtime host.
12+
The proxy hop is reachable and authenticates, but the configured target
13+
`10.100.2.62:33808` refuses TCP connections from that proxy. This appears to be
14+
a target host/port or LTP target service issue, not a local SSH alias, local
15+
auth, DNS, or proxy-hop auth failure.
16+
17+
Because the `NemTron` route is blocked, I could not verify `/root` access,
18+
task337 runtime target readability, task298 checkpoint candidate readability,
19+
task339 train-only root readability, or remote runtime imports. task341 should
20+
not be rerun until the target service/port is restored or a replacement
21+
lead-approved route is provided.
22+
23+
## Scope And Artifacts
24+
25+
- Branch:
26+
`intern_nemotron_worker_4/task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1`
27+
- Base: `origin/main`
28+
`371aea491776cc258e1cbb59a081d28be0530438`
29+
- Lead docs:
30+
`origin/intern_nemotron_lead/session1-recovery-task-docs`
31+
`c7a417d11cde7935be6f7abdc463426504dfbd33`
32+
- Local artifact root:
33+
`/work-agents/intern_nemotron_worker_4/outputs/task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1/run_20260604T124233Z`
34+
- Artifact checksum manifest:
35+
`/work-agents/intern_nemotron_worker_4/outputs/task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1/run_20260604T124233Z/manifests/artifact_checksums.sha256`
36+
37+
## Commands And Results
38+
39+
Commands were run from
40+
`/work-agents/intern_nemotron_worker_4/Nemotron_task342` unless noted.
41+
42+
### Non-secret SSH route inspection
43+
44+
```bash
45+
ssh -G NemTron
46+
```
47+
48+
Captured raw output and stderr:
49+
50+
- `logs/ssh_g_raw.log`
51+
- `logs/ssh_g_stderr.log`
52+
- `logs/ssh_g.rc`
53+
54+
Sanitized/non-secret route summary:
55+
56+
```text
57+
host NemTron
58+
user root
59+
hostname 10.100.2.62
60+
port 33808
61+
identityfile /root/.ssh/id_ed25519
62+
proxycommand ssh -i /root/.ssh/ltp_ssh_key -p 30222 -W %h:%p sshuser@10.100.197.19
63+
```
64+
65+
`ssh -G` returned rc `0`. It printed only the standard no-tty message on
66+
stderr.
67+
68+
### Required NemTron connectivity probe
69+
70+
```bash
71+
ssh -o ConnectTimeout=10 NemTron 'hostname; date -u +%Y-%m-%dT%H:%M:%SZ'
72+
```
73+
74+
Artifacts:
75+
76+
- `logs/ssh_connectivity_probe.stdout`
77+
- `logs/ssh_connectivity_probe.stderr`
78+
- `logs/ssh_connectivity_probe.rc`
79+
- `manifests/ssh_connectivity_probe_summary.txt`
80+
81+
Result:
82+
83+
- rc: `255`
84+
- stdout: empty
85+
- stderr:
86+
87+
```text
88+
channel 0: open failed: connect failed: Connection refused
89+
stdio forwarding failed
90+
Connection closed by UNKNOWN port 65535
91+
```
92+
93+
### Proxy-hop classification probe
94+
95+
The `ProxyCommand` target was inspected without exposing key material or
96+
changing SSH config. First probe confirmed the proxy hop is reachable but
97+
`python3` is not available on the proxy host:
98+
99+
```bash
100+
ssh -i /root/.ssh/ltp_ssh_key -p 30222 -o BatchMode=yes -o ConnectTimeout=10 sshuser@10.100.197.19 '<hostname/date/python tcp probe>'
101+
```
102+
103+
Artifacts:
104+
105+
- `logs/proxy_target_port_probe.stdout`
106+
- `logs/proxy_target_port_probe.stderr`
107+
- `logs/proxy_target_port_probe.rc`
108+
109+
Result:
110+
111+
- rc: `127`
112+
- stdout included proxy hostname
113+
`ssh-proxy-deployment-64fbf5f7d5-4flbz` and timestamp
114+
`2026-06-04T12:43:37Z`.
115+
- stderr: `bash: line 1: python3: command not found`.
116+
117+
Second probe used Bash `/dev/tcp` from the proxy hop to the configured target:
118+
119+
```bash
120+
ssh -i /root/.ssh/ltp_ssh_key -p 30222 -o BatchMode=yes -o ConnectTimeout=10 sshuser@10.100.197.19 \
121+
'hostname; date -u +%Y-%m-%dT%H:%M:%SZ; timeout 5 bash -lc "</dev/tcp/10.100.2.62/33808" ...'
122+
```
123+
124+
Artifacts:
125+
126+
- `logs/proxy_target_port_probe_bash_tcp.stdout`
127+
- `logs/proxy_target_port_probe_bash_tcp.stderr`
128+
- `logs/proxy_target_port_probe_bash_tcp.rc`
129+
- `manifests/proxy_target_port_probe_bash_tcp_summary.txt`
130+
131+
Result:
132+
133+
- rc: `1`
134+
- stdout:
135+
136+
```text
137+
ssh-proxy-deployment-64fbf5f7d5-4flbz
138+
2026-06-04T12:44:07Z
139+
TCP_CONNECT 10.100.2.62:33808 FAIL rc=1
140+
```
141+
142+
- stderr:
143+
144+
```text
145+
bash: connect: Connection refused
146+
bash: line 1: /dev/tcp/10.100.2.62/33808: Connection refused
147+
```
148+
149+
This confirms the proxy hop authenticates and runs commands, while the target
150+
host/port behind the proxy refuses the TCP connection.
151+
152+
## Blocker Classification
153+
154+
- Local SSH alias/config parse: `PASS`.
155+
- Local private key material inspection: not performed.
156+
- Proxy-hop auth/connectivity: `PASS`.
157+
- Target host/port from proxy hop: `BLOCK`, connection refused.
158+
- Required `ssh NemTron` command: `BLOCK`, rc `255`.
159+
- `/root` access: not testable because SSH route does not reach target.
160+
- task337 runtime target: not testable because SSH route does not reach target.
161+
- task298 checkpoint candidate: not testable because SSH route does not reach
162+
target.
163+
- task339 train-only root: not testable because SSH route does not reach
164+
target.
165+
- Runtime imports: not testable because SSH route does not reach target.
166+
167+
Likely required owner/action: coordinator or infrastructure owner needs to
168+
restore or replace the LTP/NemTron target service behind
169+
`10.100.2.62:33808`, or provide a new lead-approved host/port/alias. This
170+
worker should not mutate SSH config, LTP job state, shared runtime roots, or
171+
network/system state to remediate it.
172+
173+
## Artifact Checksum Verdict
174+
175+
From the artifact root:
176+
177+
```bash
178+
sha256sum -c manifests/artifact_checksums.sha256
179+
```
180+
181+
Result: `PASS`, 16 entries.
182+
183+
Important hashes:
184+
185+
- `logs/ssh_connectivity_probe.stderr`:
186+
`7b8f4b70c99b5e871dd61cfe3c21ccd21a73ce243c8199a780f594c8086ecc90`
187+
- `logs/proxy_target_port_probe_bash_tcp.stdout`:
188+
`f38a3326621effc9570b110728b97f1e9bd9777ad45472d3ee0f08148f582b44`
189+
- `logs/proxy_target_port_probe_bash_tcp.stderr`:
190+
`e5aee70c3881f8772ec7c65f7f0c919ed711d3e18f438745d563d5adda813309`
191+
- `manifests/ssh_route_summary_nonsecret.txt`:
192+
`7729ef2c32268eae0db74aaa81769ccd13cc630cbfe187ac093f35391109e800`
193+
- `manifests/command_env_manifest.txt`:
194+
`b79c29e6a0b6d2a480a6fcb80b6f66f5f0018315114abb3e4dab0aa59636bd60`
195+
196+
## Boundary Confirmation
197+
198+
Confirmed from commands and artifacts:
199+
200+
- No optimizer steps or training loop.
201+
- No benchmark eval, AIME eval, or task243 eval.
202+
- No export, endpoint, promotion, task310 release, task255 reuse, or AIME2025
203+
train rows.
204+
- No shared deletion/mutation and no product/source code edits.
205+
- No destructive SSH config changes.
206+
- No main push, merge, or self-merge.

‎workspace/tasks/task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1/task_knowledge.md‎

Lines changed: 7 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
11
# task342_qwen_all_sft_nemtron_ssh_runtime_access_recovery_s1 - task knowledge
22

3-
<!-- METADATA:STATUS=InProgress,ASSIGNEE=intern_nemotron_worker_4,SESSION=91 -->
3+
<!-- METADATA:STATUS=ReadyForPR,ASSIGNEE=intern_nemotron_worker_4,SESSION=91 -->
44

55
1. #404/task341 merged blocker evidence at `2026-06-04T12:34:36Z`, merge
66
commit `371aea491776cc258e1cbb59a081d28be0530438`.
@@ -18,3 +18,9 @@
1818
were imported from
1919
`origin/intern_nemotron_lead/session1-recovery-task-docs`
2020
`c7a417d11cde7935be6f7abdc463426504dfbd33`.
21+
6. Worker_4 disposition is `BLOCK_NEMTRON_ACCESS`. `ssh NemTron` still fails
22+
with rc `255`, while the proxy hop is reachable and proxy-side `/dev/tcp`
23+
to target `10.100.2.62:33808` returns connection refused.
24+
7. Because the route does not reach the target, `/root`, task337 runtime target,
25+
task298 checkpoint candidate, task339 train-only root, and runtime imports
26+
were not testable.

0 commit comments

Comments
 (0)