fix: some problems when server starting

[jjeffcaii]

What this PR does:

1. fix the starting problem
2. adjust some logging settings
3. bugfix: when input an illegal SQL, the session will be disconnected, and it will cause mycli reports reconnect... repeatedly forever.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[codecov-commenter]

Codecov Report

Patch coverage: 9.67% and no project coverage change.

Comparison is base (3ea47a2) 36.67% compared to head (b8e958c) 36.67%.

❗ Your organization is not using the GitHub App Integration. As a result you may experience degraded service beginning May 15th. Please install the Github App Integration for your organization. Read more.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #735   +/-   ##
=======================================
  Coverage   36.67%   36.67%           
=======================================
  Files         247      247           
  Lines       26157    26157           
=======================================
  Hits         9594     9594           
  Misses      15518    15518           
  Partials     1045     1045           

Files Changed	Coverage Δ
pkg/config/model.go	34.45% <ø> (ø)
pkg/executor/redirect.go	3.75% <0.00%> (ø)
pkg/runtime/namespace/command.go	16.27% <0.00%> (ø)
pkg/config/misc.go	16.12% <40.00%> (ø)
pkg/boot/boot.go	45.66% <100.00%> (ø)

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
1 Code Smell

No Coverage information
11.7% Duplication