GitHub user Shawcs created a discussion: Delete and roll configuration help
Hello community !
After few weeks of iteration I seek your help to configure my log4j2 in kafka
properly.
Here is a simplified property file I created to just focus on 2 appender
```yaml
Configuration:
#status: debug #to have logs about log4j itself
Properties:
Property:
# Fallback if the system property is not set
- name: "kafka.logs.dir"
value: "{{ kafka_logs_dir }}"
- name: "logPattern"
value: "[%d] %p %m (%c)%n"
Appenders:
Console:
name: STDOUT
PatternLayout:
pattern: "${logPattern}"
RollingFile:
- name: KafkaServerAppender
fileName: "${sys:kafka.logs.dir}/server.log"
filePattern:
"${sys:kafka.logs.dir}/server.%d{yyyy-MM-dd:HH'h':mm'm'}.log"
PatternLayout:
pattern: "${logPattern}"
Policies:
TimeBasedTriggeringPolicy:
interval: 1
modulate: true
SizeBasedTriggeringPolicy:
size: 100 MB
DefaultRolloverStrategy:
max: 5
#Taken from:
https://logging.apache.org/log4j/2.x/manual/appenders/rolling-file.html#timestamped
DirectWriteRolloverStrategy:
Delete:
basePath: "${sys:kafka.logs.dir}"
IfFileName:
regex: "server.log.*"
IfLastModified:
age: "PT15M"
# Request appender
- name: RequestAppender
fileName: "${sys:kafka.logs.dir}/kafka-request.log"
filePattern:
"${sys:kafka.logs.dir}/kafka-request.log.%d{yyyy-MM-dd:HH'h'}"
PatternLayout:
pattern: "${logPattern}"
Policies:
TimeBasedTriggeringPolicy:
interval: 12
modulate: false
SizeBasedTriggeringPolicy:
size: 100 MB
DefaultRolloverStrategy:
max: 5
Loggers:
Root:
level: INFO
AppenderRef:
ref: KafkaServerAppender
Logger:
# Kafka logger
- name: kafka
level: INFO
# Kafka org.apache logger
- name: org.apache.kafka
level: INFO
##############
# Kafka request logger
##############
- name: kafka.request.logger
level: INFO
additivity: false
AppenderRef:
ref: RequestAppender
# Kafka network RequestChannel$ logger
- name: kafka.network.RequestChannel$
level: INFO
additivity: false
AppenderRef:
ref: RequestAppender
# Uncomment the lines below and change
log4j.logger.kafka.network.RequestChannel$ to INFO
# for additional output related to the handling of requests
- name: kafka.network.Processor
level: INFO
additivity: false
AppenderRef:
ref: RequestAppender
# - name: kafka.server.KafkaApis
# level: INFO
# additivity: false
# AppenderRef:
# ref: RequestAppender
```
What I expected from the first one was:
- roll file every 1 min OR if the file is more than 100Mb
- if we have 5 rolled file start to suppress older file
- if a file matching server.log.* have been last modified 15min ago suppress it
What I experienced:
- file are rolled sometimes every minutes yes but sometimes no (can't determine
why)
- files are not suppressed at all
what I expected for the second one:
- roll the file every 12 hours OR if the file is more than 100Mb
- if we reach 5 rolled files then delete the older one
What I experienced:
- file are rolled but not deleted
If anyone could point me to understanding why it's falling and where to go that
would be awesome.
cheers
GitHub link: https://github.com/apache/logging-log4j2/discussions/4029
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