Gooood news! As with every not-so-well documented piece of software I should
have read the code before taking wrong assumptions (or at least take a look
at stackoverflow ;) ). I think we should ask our mentors to assign developer
rights. Or is it to be filed to INFRA? Sorry, I'm still an ASF rookie ;)
Thanks,
Raffaele
On Thu, Oct 20, 2011 at 10:08 AM, Akash Ashok <[email protected]>wrote:
> There is a way to free this memory. We will need to extend ByteBuffer to do
> this. finalize() method actually deallocates memory. But its a protected
> member.
>
> http://stackoverflow.com/questions/1854398/how-to-garbage-collect-a-direct-buffer-java
>
> So we might have to allocate a new Buffer and terminate the old one. This
> is
> gonna be expensive but since this is not done too often it should be ok.
>
> Have opened a JIRA for this.
> https://issues.apache.org/jira/browse/DIRECTMEMORY-24
>
> Also could you please give me developer access and add me as a contributor
> so that I can assign tickets and submit patches ?
>
> Cheers,
> Akash A
>
> On Thu, Oct 20, 2011 at 1:26 PM, Raffaele P. Guidi <
> [email protected]> wrote:
>
> > It is not casual. I didn't find a way to free a DirectBuffer except than
> > stopping the jvm. Please double check it, ten talented programmers are
> > better than a dumb one ;-)
> >
> > On Thursday, October 20, 2011, Akash Ashok <[email protected]>
> wrote:
> > > I currently see that we have
> > >
> > > Cache.java
> > > public static void clear() {
> > > for (OffHeapMemoryBuffer buffer : buffers) {
> > > buffer.clear();
> > > }
> > > activeBuffer = buffers.get(0);
> > > }
> > >
> > > OffHeapMemoryBuffer.java
> > >
> > > public void clear() {
> > > allocationErrors = 0;
> > > pointers.clear();
> > > createAndAddFirstPointer();
> > > buffer.clear();
> > > used.set(0);
> > > }
> > >
> > > buffer.clear() doesn't actually deallocate the memory. I assume
> currently
> > we
> > > dnt have the feature of de-allocating memory which means that we can't
> > > resize the cache once instantiated even if we want to. I feel we should
> > have
> > > this feature which would give deeper control on the Cache.
> > >
> > >
> > >
> > > Cheers,
> > > Akash A
> > >
> >
>
