gavinchou opened a new pull request, #32116:
URL: https://github.com/apache/doris/pull/32116
The log file names are in the format fe.log.${date}-${index}, e.g.
```
fe.log.20240311-1
fe.log.20240311-2
fe.log.20240311-3
...
```
In the previous, fe.log/fe.audit.log will be renamed to
fe.log.xxx-1/fe.audit.log.xxx-1 with the minimum index `1` when they reach
rotation size. e.g.
```
fe.log.20240311-1 -> fe.log.20240311-2
fe.log.20240311-2 -> fe.log.20240311-3
fe.log.20240311-3 -> fe.log.20240311-4
fe.log -> fe.log.20240311-1
```
there are some drawbacks
1. log4j needs to rename all existing rotated log to spare the index `1`
2. it's hard to deal with the duplicated names, because every time the log
rotates, it starts from index `1`
After this change, the log will rename to a file name with larger index
instead of `1`. e.g. when rotate
```
fe.log.20240311-1
fe.log.20240311-2
fe.log.20240311-3
fe.log -> fe.log.20240311-4
```
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