deardeng opened a new pull request, #60522:
URL: https://github.com/apache/doris/pull/60522
When running FE in console mode (start_fe.sh --console), the fe.out log file
was not generated because stdout/stderr were not redirected to the log file.
The root cause is that the log4j console appender was configured with
target="SYSTEM_OUT", which sends log4j logs to stdout. This makes it impossible
to separate log4j logs from JVM stdout output at the shell level.
Fix:
1. Change log4j console appender target from SYSTEM_OUT to SYSTEM_ERR in
Log4jConfig.java, so that log4j logs go to stderr (displayed on terminal)
instead of stdout. This also matches the env var name DORIS_LOG_TO_STDERR.
2. Redirect stdout to fe.out in start_fe.sh console mode, consistent with
daemon mode behavior. The fe.out file now only contains JVM native output, not
log4j formatted logs.
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [ ] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [x] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [x] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [x] No.
- [ ] Yes. <!-- Add document PR link here. eg:
https://github.com/apache/doris-website/pull/1214 -->
### Check List (For Reviewer who merge this PR)
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