toml格式
[[common.log.categories]]
categories = [ '.' ]
handlers = [ 'normal', 'err', 'fatal' ]
inherit = true
level = 'INFO'
propagate = 'NONE'[[common.log.handlers]]
async = true
file_path = '/var/log/3fs/storage_main.log'
max_file_size = '100MB'
max_files = 10
name = 'normal'
rotate = true
rotate_on_open = false
start_level = 'NONE'
stream_type = 'STDERR'
writer_type = 'FILE'[[common.log.handlers]]
async = false
file_path = '/var/log/3fs/storage_main-err.log'
max_file_size = '100MB'
max_files = 10
name = 'err'
rotate = true
rotate_on_open = false
start_level = 'ERR'
stream_type = 'STDERR'
writer_type = 'FILE'[[common.log.handlers]]
async = false
file_path = '/var/log/3fs/storage_main-fatal.log'
max_file_size = '100MB'
max_files = 10
name = 'fatal'
rotate = true
rotate_on_open = false
start_level = 'FATAL'
stream_type = 'STDERR'
writer_type = 'STREAM'等价于json：
{"common": {"log": {"categories": [{"categories": ["."],"handlers": ["normal", "err", "fatal"],"inherit": true,"level": "INFO","propagate": "NONE"}],"handlers": [{"async": true,"file_path": "/var/log/3fs/storage_main.log","max_file_size": "100MB","max_files": 10,"name": "normal","rotate": true,"rotate_on_open": false,"start_level": "NONE","stream_type": "STDERR","writer_type": "FILE"},{"async": false,"file_path": "/var/log/3fs/storage_main-err.log","max_file_size": "100MB","max_files": 10,"name": "err","rotate": true,"rotate_on_open": false,"start_level": "ERR","stream_type": "STDERR","writer_type": "FILE"},{"async": false,"file_path": "/var/log/3fs/storage_main-fatal.log","max_file_size": "100MB","max_files": 10,"name": "fatal","rotate": true,"rotate_on_open": false,"start_level": "FATAL","stream_type": "STDERR","writer_type": "STREAM"}]}}
}