BigOneLiu opened a new pull request #5609: [FLINK-8822] RotateLogFile may not work well when sed version is belo… URL: https://github.com/apache/flink/pull/5609 …w 4.2 In bin/config.sh rotateLogFilesWithPrefix(),it use extended regular to process filename with "sed -E",but when sed version is below 4.2,it turns out "sed: invalid option – 'E'" and RotateLogFile won't work well : There will be only one logfile no matter what is $MAX_LOG_FILE_NUMBER. so use sed -r may be more suitable.
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