alexandrainst / alexandrainst/node-red-contrib-postgresql
Node-RED crashes when Postgres terminates connection unexpectedly due to out of memory error
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Description
This looks related to https://github.com/alexandrainst/node-red-contrib-postgresql/pull/50
Node-RED v14.2
node.js v22.11.0
I am executing a query that occasionally causes an out of memory error in Postgres. This throws an uncaught exception which crashes Node-RED
8 Jan 16:29:16 - [error] [postgresql:Foo Query] error: out of memory
8 Jan 16:29:16 - [red] Uncaught Exception:
8 Jan 16:29:16 - [error] Error: Connection terminated unexpectedly
at Connection.<anonymous> (/data/node_modules/pg/lib/client.js:131:73)
at Object.onceWrapper (node:events:632:28)
at Connection.emit (node:events:518:28)
at Connection.emit (node:domain:489:12)
at Socket.<anonymous> (/data/node_modules/pg/lib/connection.js:62:12)
at Socket.emit (node:events:530:35)
at Socket.emit (node:domain:489:12)
at TCP.<anonymous> (node:net:343:12)
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reading the linked pull request and the stack-trace entry points in pg/lib/client.js and pg/lib/connection.js, then trace how node-red-contrib-postgresql handles a terminated connection. Reproduce the out-of-memory termination if possible and define done as preventing the uncaught exception from crashing Node-RED, with coverage for this failure path.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- nodejs, postgresql
- Domain
- backend, databases
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100