users@grizzly.java.net

Re: Parallel writes revisited: bug or me?

From: Matthew Swift <matthew.swift_at_gmail.com>
Date: Tue, 7 Feb 2012 22:20:09 +0100

Thanks for the heads up Ryan. I'm in the process of patching the existing
code to synchronize on the Connection object for writes as this has a lower
impact/risk. I'll then switch the trunk over to 2.2.1 and non-blocking IO
soon afterwards so that we can give it as much testing as possible.

Cheers,

Matt


On 7 February 2012 19:23, Ryan Lubke <ryan.lubke_at_oracle.com> wrote:

> On 2/6/12 2:25 PM, Matthew Swift wrote:
>
> Awesome - thanks for the info. :-)
>
> I'll take a look at this tomorrow (getting late here now) and come back
> with any questions I have, but it looks pretty straightforward from what
> you describe.
>
> Great! And just in case it was missed, it would require migrating to
> 2.2.1.
> There are some API changes in that release, FYI.
>
>
> Cheers,
>
> Matt
>
> On 6 February 2012 23:00, Ryan Lubke <ryan.lubke_at_oracle.com> wrote:
>
>> Further details...
>>
>> <snip>
>>
>> Presumably there's some sort of bounded write queue.
>> </snip>
>>
>> In addition to the PushBackHandler, there are a couple of ways to
>> configure the size of the queue.
>>
>> See: AsyncQueueWriter.setMaxPendingBytesPerConnection(int) [1]
>>
>> By default, the queue will be limited to four times the size of the
>> socket write buffer size.
>>
>> This value may be initially set via
>> TCPNIOTransportBuilder.setMaxAsyncWriteQueueSizeInBytes(int) [2].
>>
>>
>>
>> [1]
>> http://java.net/projects/grizzly/sources/git/content/modules/grizzly/src/main/java/org/glassfish/grizzly/asyncqueue/AsyncQueueWriter.java?rev=15de8fef0a4f138636e222f861ae6cb1fcf111f9
>>
>> [2]
>> http://java.net/projects/grizzly/sources/git/content/modules/grizzly/src/main/java/org/glassfish/grizzly/nio/transport/TCPNIOTransportBuilder.java?rev=15de8fef0a4f138636e222f861ae6cb1fcf111f9
>>
>>
>
>