Troubleshoot LangSmith logging issues

[seanmavley]

Checked other resources

• I added a very descriptive title to this question.
• I searched the LangChain documentation with the integrated search.
• I used the GitHub search to find a similar question and didn't find it.

Commit to Help

• I commit to help with one of those options 👆

Example Code

According to the guide, I've done this


LANGCHAIN_TRACING_V2=true
LANGCHAIN_ENDPOINT="https://api.smith.langchain.com"
LANGCHAIN_API_KEY="ls__xxx"

### Description

My LangSmith dashboard isn't receiving any data.

Question is, how do I even begin to debug what the issue is?

### System Info

System Information
------------------
> OS:  Linux
> OS Version:  #107-Ubuntu SMP Wed Feb 7 13:26:48 UTC 2024
> Python Version:  3.10.12 (main, Nov 20 2023, 15:14:05) [GCC 11.4.0]

Package Information
-------------------
> langchain_core: 0.1.27
> langchain: 0.1.9
> langchain_community: 0.0.24
> langsmith: 0.1.9
> langgraph: 0.0.26

Packages not installed (Not Necessarily a Problem)
--------------------------------------------------
The following packages were not found:

> langserve

[dosubot[bot]]

🤖

Hey @seanmavley! Great to see you diving into another challenge with LangChain. How's everything going on your end?

Based on the information you've provided and the context from the LangChain repository, here are some steps you can take to troubleshoot the issue:

1. Verify Environment Variables: Make sure that the environment variables LANGCHAIN_TRACING_V2, LANGCHAIN_ENDPOINT, and LANGCHAIN_API_KEY are correctly set in your environment. These variables are crucial for logging runs to LangSmith. Double-check the values, especially the LANGCHAIN_API_KEY, to ensure they are correct and have no typos.

2. Check API Key and Project Access: Verify that the API key you are using has the correct permissions. If the project does not exist, the system is supposed to automatically create it, but there could be permission issues preventing this from happening.

3. Network Connectivity: Ensure that your system can reach the LangSmith API endpoint (https://api.smith.langchain.com). You can test this by using tools like curl or ping to see if the endpoint is reachable from your system.

4. Review Agent Execution: Look at the code where you are executing the agent and logging runs. Ensure that the agent is running successfully and that there are no errors in the execution that could prevent data from being sent to LangSmith.

5. Inspect LangSmith Dashboard and Logs: Log into the LangSmith dashboard and check if there are any error messages or logs that could provide more insight into why data is not being received. Sometimes, the issue could be on the receiving end, and the dashboard might provide clues or error messages.

If the above steps do not resolve the issue, review the LangSmith documentation for any additional configuration steps or known issues. If the problem persists, consider reaching out to LangSmith support at support@langchain.dev with details of your setup and the steps you have taken to troubleshoot.

As for the order of setting environment variables, I couldn't find any specific information in the LangChain repository. However, in general, the order of setting environment variables should not matter as long as they are all set before they are used in your code.

I hope this helps! If you have any other questions or need further clarification, feel free to ask.

Sources

• Have set my langchain+ tracing key, it is not being recognized
• docs/docs/langsmith/walkthrough.ipynb

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[seanmavley]

My bad. If you're using something like systemd to run your process such as gunicorn, you'll need to declare the environments in there like below:

[Unit]
Description=Gunicorn Server for LLM application
After=network.target

[Service]
User=paperspace
Group=paperspace
WorkingDirectory=/home/server/apps/llm
Environment="LANGCHAIN_TRACING_V2=true"
Environment="LANGCHAIN_ENDPOINT='https://api.smith.langchain.com'"
Environment="LANGCHAIN_API_KEY='your key'"
Environment="PATH=/home/paperspace/apps/llm/venv/bin"
ExecStart=/home/server/apps/llm/venv/bin/gunicorn -b 0.0.0.0:8000 LLM.wsgi:application --workers 3

[Install]
WantedBy=multi-user.target

[starascendin]

wow this worked, but the langsmith app is telling me to do

LANGCHAIN_TRACING_V2=true
LANGCHAIN_ENDPOINT="https://api.smith.langchain.com"
LANGCHAIN_API_KEY="<your-api-key>"
LANGCHAIN_PROJECT="pr-wilted-crewman-38"

whats going on?? 😂

[hareemzaf]

WARNING:langsmith.client:Failed to send compressed multipart ingest: langsmith.utils.LangSmithAuthError: Authentication failed for https://api.smith.langchain.com/runs/multipart. HTTPError('401 Client Error: Unauthorized for url: https://api.smith.langchain.com/runs/multipart', '{"detail":"Invalid token"}')

Search Tavili

Search Pubmed

WARNING:langsmith.client:Failed to send compressed multipart ingest: langsmith.utils.LangSmithAuthError: Authentication failed for https://api.smith.langchain.com/runs/multipart. HTTPError('401 Client Error: Unauthorized for url: https://api.smith.langchain.com/runs/multipart', '{"detail":"Invalid token"}')
WARNING:langsmith.client:Failed to send compressed multipart ingest: langsmith.utils.LangSmithAuthError: Authentication failed for https://api.smith.langchain.com/runs/multipart. HTTPError('401 Client Error: Unauthorized for url: https://api.smith.langchain.com/runs/multipart', '{"detail":"Invalid token"}')

Search Semantic Scholar

WARNING:langsmith.client:Failed to send compressed multipart ingest: langsmith.utils.LangSmithAuthError: Authentication failed for https://api.smith.langchain.com/runs/multipart. HTTPError('401 Client Error: Unauthorized for url: https://api.smith.langchain.com/runs/multipart', '{"detail":"Invalid token"}')
WARNING:langsmith.client:Failed to send compressed multipart ingest: langsmith.utils.LangSmithAuthError: Authentication failed for https://api.smith.langchain.com/runs/multipart. HTTPError('401 Client Error: Unauthorized for url: https://api.smith.langchain.com/runs/multipart', '{"detail":"Invalid token"}')

Search Wikipedia

WARNING:langsmith.client:Failed to send compressed multipart ingest: langsmith.utils.LangSmithAuthError: Authentication failed for https://api.smith.langchain.com/runs/multipart. HTTPError('401 Client Error: Unauthorized for url: https://api.smith.langchain.com/runs/multipart', '{"detail":"Invalid token"}')
WARNING:langsmith.client:Failed to send compressed multipart ingest: langsmith.utils.LangSmithAuthError: Authentication failed for https://api.smith.langchain.com/runs/multipart. HTTPError('401 Client Error: Unauthorized for url: https://api.smith.langchain.com/runs/multipart', '{"detail":"Invalid token"}')

Generate Answer

WARNING:langsmith.client:Failed to send compressed multipart ingest: langsmith.utils.LangSmithAuthError: Authentication failed for https://api.smith.langchain.com/runs/multipart. HTTPError('401 Client Error: Unauthorized for url: https://api.smith.langchain.com/runs/multipart', '{"detail":"Invalid token"}')

Routing Messages

Generate Question

WARNING:langsmith.client:Failed to send compressed multipart ingest: langsmith.utils.LangSmithAuthError: Authentication failed for https://api.smith.langchain.com/runs/multipart. HTTPError('401 Client Error: Unauthorized for url: https://api.smith.langchain.com/runs/multipart', '{"detail":"Invalid token"}')