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A8 Catch pooled connection errors in Connection.Manager process by alco · Pull Request #2804 · electric-sql/electric · GitHub
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Catch pooled connection errors in Connection.Manager process #2804

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Merged
merged 6 commits into from
Jun 16, 2025
Merged

Catch pooled connection errors in Connection.Manager process #2804

merged 6 commits into from
Jun 16, 2025

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alco
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@alco alco commented Jun 5, 2025 •
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Fix #1554, #2727.

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codecov bot commented Jun 5, 2025 •
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Codecov Report

Attention: Patch coverage is 35.00000% with 13 lines in your changes missing coverage. Please review.

Project coverage is 78.27%. Comparing base (7e8c4f4) to head (b66b36f).
Report is 7 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines Patch % Lines
...es/sync-service/lib/electric/connection/manager.ex 41.66% 7 Missing ⚠️
...s/sync-service/lib/electric/db_connection_error.ex 0.00% 6 Missing ⚠️
Additional details and impacted files 
@@            Coverage Diff             @@
##             main    #2804      +/-   ##
==========================================
- Coverage   78.32%   78.27%   -0.05%     
==========================================
  Files         154      154              
  Lines        7270     7288      +18     
  Branches      275      273       -2     
==========================================
+ Hits         5694     5705      +11     
- Misses       1574     1581       +7     
  Partials        2        2
Flag Coverage Δ
elixir 77.19% <35.00%> (-0.05%) ⬇️
elixir-client 72.58% <ø> (+0.57%) ⬆️
packages/experimental 87.73% <ø> (ø)
packages/react-hooks 86.30% <ø> (ø)
packages/typescript-client 92.41% <ø> (ø)
packages/y-electric 55.12% <ø> (ø)
postgres-140000 77.32% <35.00%> (-0.15%) ⬇️
postgres-150000 77.45% <35.00%> (-0.17%) ⬇️
postgres-170000 77.39% <35.00%> (-0.22%) ⬇️
sync-service 77.77% <35.00%> (-0.13%) ⬇️
typescript 84.36% <ø> (ø)
unit-tests 78.27% <35.00%> (-0.05%) ⬇️

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@alco alco force-pushed the alco/pooled-connection-errors branch 5 times, most recently from 3ffca87 to d971d3c Compare June 11, 2025 10:44
@alco alco marked this pull request as ready for review June 11, 2025 10:48
@alco alco force-pushed the alco/pooled-connection-errors branch from d971d3c to b66b36f Compare June 11, 2025 10:49
@alco alco changed the title POC: catch pooled connection errors in Connection.Manager process Catch pooled connection errors in Connection.Manager process Jun 11, 2025
balegas
balegas reviewed Jun 12, 2025
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packages/sync-service/lib/electric/connection/manager.ex
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# If the error is of an unknown type, it would have already been logged by DbConnectionError itself.
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We've been chatting back and forth about disabling library logging. I think with this PR and catching all the unknown errors from the lib we can disable it safely. Shall we do that as part of this PR? cc @robacourt

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Sounds like a good idea to me

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Sorry, I'm not sure I get what is meant by disabling library logging here.

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  1. Set capture_log_messages to false
  2. Come up with an alternative means to send errors to Sentry when we want to (when we currently just log an error)

Because 2 is not trivial, perhaps it should be a separate PR.

robacourt
robacourt approved these changes Jun 16, 2025
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Nice work!

@alco alco merged commit 4a6e5b1 into main Jun 16, 2025
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@alco alco deleted the alco/pooled-connection-errors branch June 16, 2025 14:30
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@robacourt robacourt robacourt approved these changes

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Improve db connection error visibility
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@alco @balegas @robacourt








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