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https://issues.apache.org/jira/browse/NIFI-1170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15005939#comment-15005939
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Mark Payne commented on NIFI-1170:
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[~trixpan] - To make sure that I understand your use case more clearly. You are
indicating that rather than always writing to a file named "server" and then
having that rotate to "server1", "server2", "server3", the logging platform
would instead just write to "server1" and then write to "server2" and then
write to "server3". In this case, the rotation happens by writing to a
different file, rather than renaming the file being written to.
Is this description accurate?
If so, that is certainly something that I have considered personally. I think
this use case should probably be solved by introducing a new "Rollover
Strategy" property or something of that nature, so that it is easier to
understand the behavior. Please correct me if I am wrong.
Thanks!
-Mark
> TailFile "File to Tail" property should support Wildcards
> ---------------------------------------------------------
>
> Key: NIFI-1170
> URL: https://issues.apache.org/jira/browse/NIFI-1170
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Affects Versions: 0.4.0
> Reporter: Andre
>
> Because of challenges around log rotation of high volume syslog and app
> producers, it is customary to logging platform developers to promote file
> variables based file names such as DynaFiles (rsyslog), Macros(syslog-ng)as
> alternatives to getting SIGHUPs being sent to the syslog daemon upon every
> file rotation.
> (To certain extent, used even NiFi's has similar patterns, like for example,
> when one uses Expression Language to set PutHDFS destination file).
> The current TailFile strategy suggests rotation patterns like:
> {code}
> log_folder/app.log
> log_folder/app.log.1
> log_folder/app.log.2
> log_folder/app.log.3
> {code}
> It is possible to fool the system to accept wildcards by simply using a
> strategy like:
> {code}
> log_folder/test1
> log_folder/server1
> log_folder/server2
> log_folder/server3
> {code}
> And configure *Rolling Filename Pattern* to * but it feels like a hack,
> rather than catering for an ever increasingly prevalent use case
> (DynaFile/macros/etc).
> It would be great if instead, TailFile had the ability to use wildcards on
> File to Tail property
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