[improve][schema] Do not print error log with stacktrace for 404

[codelipenghui]

Motivation

We have the INFO log to show the schema not found, or the topic is found.
The error logs for the not found exception are just making noise.

2023-01-04T20:33:26,341 - INFO  - [metadata-store-12-1:Slf4jRequestLogWriter@62] - 127.0.0.1 - - [04/Jan/2023:20:33:26 +0800] "GET /admin/v2/schemas/public/default/test111/schema HTTP/1.1" 404 29 "-" "Pulsar-Java-v2.12.0-SNAPSHOT" 118

Does this pull request potentially affect one of the following parts:

If the box was checked, please highlight the changes

• Dependencies (add or upgrade a dependency)
• The public API
• The schema
• The default values of configurations
• The threading model
• The binary protocol
• The REST endpoints
• The admin CLI options
• The metrics
• Anything that affects deployment

Documentation

• doc
• doc-required
• doc-not-needed
• doc-complete

[codelipenghui]

/pulsarbot run-failure-checks

[nicoloboschi]

What about keeping them a debug level ?

[codecov-commenter]

Codecov Report

❌ Patch coverage is 32.00000% with 17 lines in your changes missing coverage. Please review.
✅ Project coverage is 45.68%. Comparing base (9ec1d07) to head (537b010).
⚠️ Report is 3036 commits behind head on master.

Files with missing lines	Patch %	Lines
...apache/pulsar/broker/admin/v1/SchemasResource.java	10.00%	9 Missing ⚠️
...apache/pulsar/broker/admin/v2/SchemasResource.java	40.00%	5 Missing and 1 partial ⚠️
.../org/apache/pulsar/broker/admin/AdminResource.java	75.00%	0 Missing and 1 partial ⚠️
.../pulsar/broker/admin/impl/SchemasResourceBase.java	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #19130      +/-   ##
============================================
- Coverage     47.73%   45.68%   -2.05%     
- Complexity    10819    11046     +227     
============================================
  Files           712      772      +60     
  Lines         69645    74422    +4777     
  Branches       7481     8015     +534     
============================================
+ Hits          33242    33997     +755     
- Misses        32699    36615    +3916     
- Partials       3704     3810     +106     

Flag	Coverage Δ
unittests	45.68% <32.00%> (-2.05%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
.../org/apache/pulsar/broker/admin/AdminResource.java	66.21% <75.00%> (-0.38%)	⬇️
.../pulsar/broker/admin/impl/SchemasResourceBase.java	89.21% <0.00%> (-0.89%)	⬇️
...apache/pulsar/broker/admin/v2/SchemasResource.java	72.28% <40.00%> (ø)
...apache/pulsar/broker/admin/v1/SchemasResource.java	26.50% <10.00%> (ø)

... and 97 files with indirect coverage changes

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[codelipenghui]

What about keeping them a debug level ?

Hmmm, I don't think it will help something. Because 404 always means the schema is not found or the topic is not found depending on the API. We already have the streamlined log which I mentioned in the PR's description.