This pull request replaces Log4j with Log4j2 across the entire project, including dependencies, configurations, and code. The notable changes are listed below:
1. Introduce Log4j2 Instead of Log4j
2. Change Configuration File Format from Properties to YAML
3. Adds warnings to notify users if they are still using Log4j properties, encouraging them to transition to Log4j2 configurations
Co-authored-by: Lee Dongjin <dongjin@apache.org>
Reviewers: Luke Chen <showuon@gmail.com>, Mickael Maison <mickael.maison@gmail.com>, Chia-Ping Tsai <chia7712@gmail.com>
Reviewers: Tom Bentley @tombentley, Boyang Chen <boyang@confluent.io>, Chia-Ping Tsai <chia7712@gmail.com>, Ismael Juma <ismael@confluent.io>, Colin P. McCabe <cmccabe@apache.org>, Matthias J. Sax <matthias@confluent.io>
## Problem
Current connect scripts (`connect-distributed.sh`, `connect-standalone.sh`) do not support `-daemon` flag even if users specify the flag
since `kafka-run-class.sh` requires that the`-daemon` flag should precede other arguments (e.g. class name)
## Solution
Do the same thing like in `kafka-server-start.sh`
- Parse a command
- Add `-daemon` to `$EXTRA_ARGS` if exists
Author: 1ambda <1amb4a@gmail.com>
Reviewers: Gwen Shapira
Closes#1717 from 1ambda/KAFKA-3742-connect-running-as-daemon
TengYao Chi
jiameixie
Arjun Satish
1ambda
Ewen Cheslack-Postava