Hi Mark/Davide
Is there a work around to this problem
in 5.4?.
Thanks and regards,
Adarsh CHAINI
SENIOR LEAD DEVELOPMENT SPECIALIST | HSBC
Bank Plc
8 Canada Square, London E14 5HQ, UK
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For anyone interested. The commit involves addressing
two needs.
1) Enforcing MVEL reflection mode throughout - MVEL ASM optimiser can NEVER
be used for anything (it doesn’t add much value anyway).
2) Avoiding giving the template system the root class loader(which we use
for dynamic stuff), as those templates are statically cached.
https://github.com/sotty/drools/commit/1b75d4785861e72338cc5ea1280610a7937be017
Mark
On 8 Jan 2014, at 00:53, Mark Proctor <mproctor@codehaus.org> wrote:
> The root of the perm gen leak has now be solved, thanks to some
heroic work by community developer Davide Sottara.
>
> This is just in time for the 5.6 release going out this week. You
will not need to use the kbase.dispose() work around.
>
> Mark
> On 6 Jan 2014, at 20:50, Mark Proctor <mproctor@codehaus.org>
wrote:
>
>> The 5.6 approach should be considered a work around, not a fix.
Somewhere a ref is being held, that shouldn’t be - we just haven’t found
it yet.
>>
>> Mark
>>
>> On 6 Jan 2014, at 19:17, Davide Sottara <dsotty@gmail.com>
wrote:
>>
>>> I have run pmander's tests, and reported in a previous email.
>>> The leak in 5.x is due to the nature of the composite classloader,
and
>>> dispose()
>>> forces the memory to be released. I don't remember if that
fix was in
>>> 5.6.CR1
>>> (probably not), so you may have to try 5.6.0-SNAPSHOT or wait
for the
>>> end of the week.
>>> 6.x does not suffer from the same problem, but has a different
issue -
>>> no way
>>> to unload kie modules once they are cached - which Mario has
been
>>> working on.
>>> In either case, pmander's test works fine in both 5.6.x and
6.x after
>>> these fixes
>>> Davide
>>>
>>> On 01/06/2014 07:56 PM, Mark Proctor wrote:
>>>> I’ve been told 5.6 will be released this week.
This is because the JCR2GIT migration tool, in 5.6 is needed for our 6.0
product.
>>>>
>>>> Davide's current kbase.dispose() method, on the concrete
class, should just be considered a work around for the problem. Unless
this is fixed by someone in the community, I don’t think any core developers
will have time to address this. At least not for 5.x; we’ll continue to
look into it for 6.x.
>>>>
>>>> Mark
>>>>
>>>>
>>>> On 6 Jan 2014, at 16:14, brachi <brachi.w@sapiens.com>
wrote:
>>>>
>>>>> see previous messages, pmander attached a unit test
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> View this message in context: http://drools.46999.n3.nabble.com/permgen-leak-tp4027038p4027539.html
>>>>> Sent from the Drools: User forum mailing list archive
at Nabble.com.
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>
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a potential conflict of interest. HSBC Bank plc has internal arrangements
designed to ensure that the firm would give unbiased and full advice to
the corporate finance client about the valuation and pricing of the offering
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conflicts of interest.
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Registered Office: 8 Canada Square, London E14 5HQ, United Kingdom
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