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https://issues.apache.org/jira/browse/FLINK-8822?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16383090#comment-16383090
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ASF GitHub Bot commented on FLINK-8822:
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Github user BigOneLiu commented on the issue:
https://github.com/apache/flink/pull/5609
@zentol thx for comment.
I checked my system SUSE 11 SP4(which is a wildly used version),sed version
is 4.1.5,and it do not support '-E'. I don't konw how many linux version use
sed 4.1.5.
According to the source code,'-E' is exactly the same as '-r' and '-E' is
Undocumented.
So maybe '-r' is more compatible.
If don't need to be changed,at least note in the doc that "log may not work
well in SUSE 11".
> RotateLogFile may not work well when sed version is below 4.2
> -------------------------------------------------------------
>
> Key: FLINK-8822
> URL: https://issues.apache.org/jira/browse/FLINK-8822
> Project: Flink
> Issue Type: Bug
> Affects Versions: 1.4.0
> Reporter: Xin Liu
> Priority: Major
> Fix For: 1.5.0
>
>
> 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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