One improvement suggestion, please check if it is valid?
For checking system whether be adequately reliability, testers usually designedly do some delete operation.
Steps:
1.go to "flink\build-target\log"
2.delete “flink-xx-jobmanager-linux-3lsu.log" file
3.Run jobs along with writing log info, meanwhile the system didn't give any error info when the log info can't be wrote correctly.
4.when some jobs be run failed , go to check log file for finding the reason, can't find the log file.
Must restart Job Manager to regenerate the log file, then continue to run jobs.
Regards
Liang