Request for review: 6941923: RFE: Handling large log files produced by long running Java Applications

[Yasumasa Suenaga]

Hi Yumin,

I would like to rotate GC log triggered by the outside.
I think that it can be implemented using AttachLister (AttachOperationFunctionInfo [])
and invoker tool.

Could you examine it?


Best regards,

Yasumasa

(2011/04/13 3:41), yumin.qi at oracle.com wrote:
> http://cr.openjdk.java.net/~minqi/6941923/webrev.00/ <http://cr.openjdk.java.net/%7Eminqi/6941923/webrev.00/>
>
> Summary:
>
> This is a RFE request for having a GC log rotation to prevent Java application from over flooding disk with GC output running for long time.
> In the implementation, supply three JVM options
> 1) -XX:+UseGCLogFileRotation must be used with -Xloggc:file
> 2) -XX:MaxGCLogFileNumbers= set limit of rotation file numbers, default to 1, maximum set to 1024.
> 3) -XX:GCLogFileSize= can be configured by user how big the file size should be. Default to 10M. Minimum set to 512K if given from option is less than 512K.
>
> If MaxGCLogFileNumbers=1, rotating output in same file, i.e write from beginning of the file when reach cap of the file; with MaxGCLogFileNumbers > 1 rotating files sequentially after reach cap in file, file.1, file.2, ..., file.<MaxGCLogFileNumbers-1> then back to file, file.1, ...
> Check if rotation needed at safepoint ending.
>
> Tested with multiple GC choices.
>
> Thanks
> Yumin
>
>
>