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

Yasumasa Suenaga suenaga.yasumasa at oss.ntt.co.jp
Mon Sep 12 16:53:24 PDT 2011


Hi,

Thank you for replying.
I'm waiting to be created new CR, and I hope to integrate this patch :-)


Thanks,
Yasumasa

(2011/09/12 22:50), Dmitry Samersoff wrote:
> Dan,
>
> Indeed. I'll care of the new CR and integration as soon as we make decision to integrate this patch.
>
> -Dmitry
>
> On 2011-09-12 17:37, Daniel D. Daugherty wrote:
>> Just an administrative FYI. Bug ID 6941923 has already been
>> used to push a fix to the HotSpot repo:
>>
>> http://hg.openjdk.java.net/hsx/hotspot-gc/hotspot/rev/2a241e764894
>>
>> so it cannot be used again in the HotSpot repo. If this work
>> is going to move forward, then a new bug ID will be needed.
>>
>> Dan
>>
>>
>> On 9/11/11 7:18 PM, Yasumasa Suenaga wrote:
>>> Hi,
>>>
>>> I'm using "logrotate" tool on RHEL for various log rotation.
>>> Now, HotSpot has gclog rotation function for log size base.
>>> However, I need to rotate gc log synchronizing with logrotate tool.
>>>
>>>
>>> So, I've made a patch for executing gclog rotation from external tool.
>>>
>>>
>>> * Changes in HotSpot (hotspot.patch):
>>> * gclog rotation request is received via AttachListener.
>>> * logrotation function ( rotatingFileStream::rotate_log() ) has
>>> 1 parameter. It's determined that gclog rotation is forced or not.
>>> * HotSpot allows "GCLogFileSize == 0" . Because we can rotate gclog
>>> via external tool.
>>>
>>> * Changes in JDK (jdk.patch):
>>> * gclog rotation is invoked via "jinfo" command with "-rotategclog"
>>> option.
>>> * With "-rotategclog -force" option, gclog is rotated mandatorily.
>>> * "jinfo" is executed "rotategclog" command in AttachListener on
>>> target JVM.
>>>
>>>
>>> I've attached these patch in this email. Please check it.
>>>
>>> I would like to contribute this patch, and I hope to apply this patch to
>>> JDK 6 / 7 / 8.
>>>
>>>
>>> Please cooperate.
>>>
>>> Best regards,
>>> Yasumasa
>>>
>
>


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