simonsobs / simonsobs/ocs

Aggregator continues to collect data if `record` process crashes

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bug
Dominant language
Python
Stars
19
Forks
7
PR merge metrics
No merged PRs in 30d

Description

I'm just discovering a state at UCSD where the aggregator record process has crashed due to some type error, but new data coming in continues to get added to the data queue. Since the aggregator version is fairly old, it's possible that the type error may be fixed, but I think the behavior of data being added to the queue when record is not running probably still exists.

I think we probably want this behavior so we don't lose data on crash, but we should probably be setting a max queue size to limit memory usage.

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Research direction

Start by locating the aggregator's record process and the data queue implementation. Confirm whether data continues to accumulate after record crashes, then determine an appropriate maximum queue size and verify that the queue remains bounded without losing data during normal operation.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
distributed-systems
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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