Best way of working out what's causing a 500 in production
I'm currently getting 500 errors in prod when trying to connect to my database, but the logs are a bit unclear on both server and db about what the cause might be. As far as I'm aware, I haven't changed anything
database error - could not proxy TCP data to/from instance: failed to copy (direction=client->server, op=shutdown_write, error=Transport endpoint is not connected (os error 107))
Server error - 'Error: Connection terminated unexpectedly (Queue: emailChecker, Worker: c2de9f26-4ef5-42ec-b126-775a53c4ae54)\n
it seems to be a broken connection but can't work out what it is - I have been getting emails saying that a process has run out of memory but it wasn't in the last few hours
8 Replies
Hi @CamBlackwood. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
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Based on the information in the knowledge sources, it appears you're experiencing a database connection issue with pg-boss, which is used for job scheduling in Wasp (like your emailChecker job).
The error you're seeing is similar to issues other Wasp users have encountered. There are a few potential causes:
1. IPv6 vs IPv4 connectivity issues: Some users have reported connection problems where pg-boss fails with errors like
ECONNREFUSED ::1:5432, indicating it's trying to connect via IPv6 but failing. This appears in several support threads where users had working database connections for regular operations but pg-boss specifically failed to connect.
2. Resource exhaustion: Your mention of "process has run out of memory" could be relevant. On Fly.io deployments, resource constraints can cause connection issues.
3. Connection termination: The "Connection terminated unexpectedly" for the emailChecker queue suggests pg-boss lost its connection to the database.
Here are some troubleshooting steps you can try:
1. Check if it's specifically pg-boss: If you're not actively using the job functionality, you could temporarily comment out the job emailChecker section in your wasp file to see if that resolves the issue. This would confirm if pg-boss is the specific component causing problems.
2. Database connection string: If you're using localhost in your connection string, try changing it to 127.0.0.1 to force IPv4 connectivity instead of IPv6.
3. Restart your application: For Fly.io deployments, you can try:
4. Restart your database: If you're using Fly.io's Postgres:
The issue might be related to a known problem with pg-boss connections after application restarts, as mentioned in this GitHub issue. The Wasp team has been investigating this issue but hasn't found a definitive solution yet, particularly for users on macOS with M-series chips.
If none of these steps help, you might need to check your database and server logs more thoroughly for additional clues about the connection issue.
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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Sorry @CamBlackwood, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?@kapa.ai -2 machines for group 'app' on region 'lhr' of size 'shared-cpu-1x'
Error: --yes flag must be specified when not running interactively
Let me check the knowledge base for you again. One moment! :books:
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Based on your error message, it appears you're encountering an issue with Fly.io deployment in Wasp. This is related to a known issue with the
wasp deploy fly command.
The error message "Error: --yes flag must be specified when not running interactively" occurs when Fly.io's CLI is trying to perform an operation that would normally require interactive confirmation, but it's being run in a non-interactive environment.
This issue is mentioned in a GitHub issue about wasp deploy fly launch, where it's noted that Fly might want to do something interactively and then fail because it concludes it's not in an interactive environment.
To resolve this issue, you need to add the --yes flag to your deployment command. This flag automatically confirms any prompts that would normally require user interaction.
Try running your command with the --yes flag added, for example:
Or for other Fly commands:
This should allow the deployment process to proceed without requiring interactive confirmation.
I hope this helps resolve your deployment issue!
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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Sorry @CamBlackwood, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?@kapa.ai for restarting the database, I tried running that command and got Error: no active leader found
Let me check the knowledge base for you again. One moment! :books:
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Based on your error message "Error: no active leader found" when trying to restart your Fly.io database, this indicates an issue with your Postgres database cluster on Fly.io.
This error typically occurs when the Postgres database is in an unhealthy state where no primary/leader node is available. In a Postgres cluster, there needs to be a leader node that can accept write operations, and if this node is unavailable, you'll get this specific error.
Here are some alternative approaches you can try:
1. Check the database status first to understand what's happening:
2. Try connecting to the database to see if it's accessible at all:
(In a separate terminal, you could then try connecting with a Postgres client)
3. Check the database logs for more specific error information:
4. If your database is completely unresponsive, you might need to contact Fly.io support as this could indicate a more serious infrastructure issue with your database instance.
5. As a last resort, if you have backups of your data, you might need to provision a new database and restore your data.
The "no active leader" error suggests that your database might be experiencing more significant issues than just needing a simple restart. This could be related to the memory issues you mentioned earlier, where resource exhaustion might have caused database corruption or failure.
For critical production applications, I recommend reaching out to Fly.io support directly as they can help diagnose and potentially recover your database instance.
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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Sorry @CamBlackwood, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?
@kapa.ai i managed to connect to the db, it keeps throwing errors - [ERROR] unable to determine if server is in recovery
Let me check the knowledge base for you again. One moment! :books:
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Based on your error message "unable to determine if server is in recovery," it appears you're experiencing a specific issue with your Postgres database on Fly.io.
This error typically occurs when pg-boss (the job scheduling system used by Wasp) is trying to connect to your database but can't properly determine the database state. This is related to the connection issues we've been discussing.
From the knowledge sources, there are several similar database connection issues that other Wasp users have encountered. The error suggests that while you can connect to the database, the connection isn't stable or fully functional.
Here are some potential solutions:
1. Try connecting with a different method:
If you're using Fly.io, you can try establishing a more stable connection using:
Then in a separate terminal, set your DATABASE_URL to point to this local connection:
This approach was mentioned as working for users in a GitHub issue about seeding production databases.
2. Check database health:
The "unable to determine if server is in recovery" error might indicate that your Postgres instance is in an unusual state. This could be related to the "no active leader" error you mentioned earlier.
3. IPv4 vs IPv6 issue:
As mentioned in previous discussions, try explicitly using IPv4 addresses (127.0.0.1) instead of localhost in your connection strings, as this has resolved similar issues for other users.
If these approaches don't work, you might need to consider more drastic measures like recreating your database instance on Fly.io. Before doing that, make sure you have a backup of your data if possible.
The recurring connection issues suggest there might be an underlying problem with your database instance that simple restarts aren't resolving.
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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Sorry @CamBlackwood, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?
Could it be that Fly had some sort of downtime? Are you maybe missing disk space for the DB app?