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Improve logging of problems during db connection #1489
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Some error logs indicate only the error returned by the server without the information about the server identity itself. On the other hand there are also logs which display the server identity together with the returned error. Cause: There is an utility layer implemented by golib/sqlutils which intercepts database queries. Some queries done by orchestrator go through this layer and some don't. sqlutils layer in case of query error prints out the query to the stdout Solution: golib/sqlutils layer is not aware of the server identity it operates on. It proxies creation of sql.DB object and then uses this object for queries execution. Logger interface has been introduced. golib/sqlutils client can register its own logger which will be used instead of internal logging when the error occurs during usage of the related sql.DB object.
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Problem:
Some error logs indicate only the error returned by the server without the information about the server identity itself.
On the other hand there are also logs which display the server identity together with the returned error.
Cause:
There is an utility layer implemented by golib/sqlutils which intercepts database queries. Some queries done by orchestrator go through this layer and some don't.
sqlutils layer in case of query error prints out the query to the stdout
Solution:
golib/sqlutils layer is not aware of the server identity it operates on. It proxies creation of sql.DB object and then uses this object for queries execution.
Logger interface has been introduced. golib/sqlutils client can register its own logger which will be used instead of internal logging when the error occurs during usage of the related sql.DB object.
I am taking time off from maintaining this repo. I will not be reviewing pull requests.
Details in https://code.openark.org/blog/mysql/reducing-my-oss-involvement-and-how-it-affects-orchestrator-gh-ost
Related issue: https://github.com/openark/orchestrator/issues/0123456789
Description
This PR [briefly explain what is does]