[jboss-jira] [JBoss JIRA] (AS7-2213) Provide an operation to retrieve the last 10 errors from the log

[Brian Stansberry (JIRA)]

    [ https://issues.jboss.org/browse/AS7-2213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12733095#comment-12733095 ] 

Brian Stansberry commented on AS7-2213:
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You're right. We -- well, really you ;) -- need to understand the requirements of this and AS7-1311 better. There are two basic concerns I have here:

1) What is "the log"?

There can be as many "logs" as there are appenders people have created in the system, including application specific ones. The output of some of them may not even be accessible to the services we use to satisfy this JIRA and AS7-1311. And there's nothing magical about server.log -- it's just the output of an appender we happen to provide in our standard logging subsystem configurations. It may not exist, it may be called foo.log, etc.

So any solution to this will need to provide an intuitive way for the user to tell us what the logging of interest is.

2) How to parse "the log"?

Maybe this is no big deal. I'm sure it's not unsolvable since there are plenty of log analysis tools out there. But if we support reporting back the contents of any particular log file, we need to be able to parse those contents. To recognize what sequence of text represents a new log entry vs a new line in an existing entry. And for this JIRA we also need to understand where in the log record the severity information is encoded.


My naive thinking for this issue was to cut through these two problems by having a custom appender to track relevant output. But, such an approach doesn't help with the AS7-1311 problem and has other flaws, so it's best to figure out solutions for both this and AS7-1311.
                
> Provide an operation to retrieve the last 10 errors from the log
> ----------------------------------------------------------------
>
>                 Key: AS7-2213
>                 URL: https://issues.jboss.org/browse/AS7-2213
>             Project: Application Server 7
>          Issue Type: Feature Request
>          Components: Domain Management, Logging
>            Reporter: Heiko Braun
>            Assignee: James Perkins
>             Fix For: 7.2.0.Alpha1
>
>


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