PING: RFR: 8233373: hs_err should report the location of JFR files

[Yasumasa Suenaga]

PING: Could you review?

>    JBS: https://bugs.openjdk.java.net/browse/JDK-8233373
>    webrev: http://cr.openjdk.java.net/~ysuenaga/JDK-8233373/webrev.00/


Yasumasa


On 2019/11/01 13:38, Yasumasa Suenaga wrote:
> Hi all,
> 
> Please review this change:
> 
>    JBS: https://bugs.openjdk.java.net/browse/JDK-8233373
>    webrev: http://cr.openjdk.java.net/~ysuenaga/JDK-8233373/webrev.00/
> 
> Since JFR Event Streaming (JEP 349), JFR file in the repository would keep most recently data.
> It is very useful for postmortem analysis. So it helps JVM engineer to acquire them from the user if hs_err log points it.
> 
> 
> Examples:
> 
> * Show JFR repository path:
> ```
> # JFR files might be saved in the repository:
> # /tmp/2019_11_01_11_09_30_3529
> ```
> 
> * Show emergency dump path
> ```
> # JFR data is saved as:
> # /home/ysuenaga/github/garakuta/NativeSEGV/hs_err_pid3807.jfr
> ```
> 
> 
> This webrev passed all tests on submit repo (mach5-one-ysuenaga-JDK-8233373-20191101-0248-6329106)
> 
> 
> Thanks,
> 
> Yasumasa