[6.x] Retry connection if DNS lookup fails #35790
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Thanks @deleugpn! We're going crazy 🎉 about this in the Serverless Laravel Slack group 😂 |
rihardsgrislis
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… then this pops out. After seeing laravel#35744, laravel#35790 and others decided to fix this. PDOException: ```SQLSTATE[08006] [7] could not translate host name "private-xxx-do-user-0.a.db.ondigitalocean.com" to address: Temporary failure in name resolution```
rihardsgrislis
pushed a commit
to rihardsgrislis/framework
that referenced
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Feb 24, 2021
… then this pops out. After seeing laravel#35744, laravel#35790 and others decided to fix this. PDOException: SQLSTATE[08006] [7] could not translate host name "private-xxx-do-user-0.a.db.ondigitalocean.com" to address: Temporary failure in name resolution
rihardsgrislis
pushed a commit
to rihardsgrislis/framework
that referenced
this pull request
Feb 24, 2021
… then this pops out. After seeing laravel#35744, laravel#35790 and others decided to fix this. PDOException: SQLSTATE[08006] [7] could not translate host name "private-xxx-do-user-0.a.db.ondigitalocean.com" to address: Temporary failure in name resolution
This was referenced Mar 11, 2021
This was referenced Mar 16, 2021
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Resubmit of #35786
Recently I've been investigating some connection failures:
Upon investigation, I noticed that this happened about 36 times out of 130,396 requests in. Although extremely low (0.02%), it is still quite disruptive to have some requests throwing 500 Internal Server Error and writing database connection logs.
AWS Support has informed that due to transient network issues, it is possible that an extremely small number of connections to RDS or Elasticache might fail and that their engineers are always working on trying to reduce even further these errors. Since it's a rare event of connectivity issues, retrying the connection seem to be a viable option and doing this on my own project seems to be so much harder than using Laravel's built-in system for reconnection.