Nice! On Sun, Mar 25, 2018 at 2:57 PM, Dmitry Pavlov <dpavlov....@gmail.com> wrote:
> Hi Igniters, > > Apache Ignite Entry was added to the projects list by JNA developers. > > Now Apache Ignite is mentioned in main Java Native Access Readme.MD ( > https://github.com/java-native-access/jna ), and link to Ignite site is > also available there. > > Sincerely, > Dmitriy Pavlov > > > сб, 24 мар. 2018 г. в 3:33, Denis Magda <dma...@apache.org>: > > > Dmitriy, Prachi, > > > > Thanks to both of you for the development and documentation of the > feature. > > I've added a reference from readme to Direct I/O section on wiki so that > > people can learn even more about the capability. > > > > -- > > Denis > > > > On Fri, Mar 23, 2018 at 2:34 PM, Dmitry Pavlov <dpavlov....@gmail.com> > > wrote: > > > > > Hi Prachi, > > > > > > Yes, it's a great description. > > > > > > I'm impressed by how informative and short you managed to make it. > > > > > > Thank you! > > > > > > Sincerely, > > > Dmitriy Pavlov > > > > > > сб, 24 мар. 2018 г. в 0:29, Prachi Garg <pg...@gridgain.com>: > > > > > >> Dmitriy, > > >> > > >> I have documented the Direct I/O plugin. Please review [1] and provide > > >> comments/feedback in the ticket [2]. > > >> > > >> [1] > > >> https://apacheignite.readme.io/v2.4/docs/durable-memory- > > >> tuning#section-enabling-direct-i-o > > >> > > >> [2] https://issues.apache.org/jira/browse/IGNITE-7466 > > >> > > >> > > >> -Prachi > > >> > > >> On Wed, Mar 21, 2018 at 11:22 PM, Dmitry Pavlov < > dpavlov....@gmail.com> > > >> wrote: > > >> > > >> > Yes, will do. > > >> > > > >> > чт, 22 мар. 2018 г. в 1:05, Denis Magda <dma...@apache.org>: > > >> > > > >> > > Dmitriy, > > >> > > > > >> > > Thanks for updating the WAL section. Now it makes total sense to > me. > > >> > > > > >> > > As for the page with JNA projects, let's get added there! Could > you > > >> > > contact the owners? > > >> > > > > >> > > -- > > >> > > Denis > > >> > > > > >> > > > > >> > > On Wed, Mar 21, 2018 at 9:27 AM, Dmitry Pavlov < > > dpavlov....@gmail.com > > >> > > > >> > > wrote: > > >> > > > > >> > >> Denis, > > >> > >> > > >> > >> one more thing, can/should we mention Ignite Direct IO plugin in > > >> list of > > >> > >> project using JNA here: https://github.com/java- > native-access/jna > > >> > >> > > >> > >> Sincerely, > > >> > >> Dmitriy Pavlov > > >> > >> > > >> > >> ср, 21 мар. 2018 г. в 1:59, Denis Magda <dma...@apache.org>: > > >> > >> > > >> > >>> *Dmitriy*, thanks. Astonishing job! We'll add a section to the > > >> durable > > >> > >>> memory tuning page and refer to the wiki for more details: > > >> > >>> https://issues.apache.org/jira/browse/IGNITE-7466 > > >> > >>> > > >> > >>> Please clarify the following: > > >> > >>> > > >> > >>> > Direct I/O mode can't be enabled for Write Ahead Log files. > > >> However, > > >> > >>> when > > >> > >>> > working with plugin, WAL manager applies advising Linux > systems > > do > > >> > not > > >> > >>> > store the data of the file in page cache as they are not > > required. > > >> > >>> > > >> > >>> > > >> > >>> For me, it means that WAL always goes through the operating > system > > >> I/O > > >> > >>> calls. Nothing changes for the WAL. However, I'm not sure what > you > > >> > meant > > >> > >>> to > > >> > >>> explain by saying "when working with the plugin (Direct I/O) WAL > > >> > manager > > >> > >>> applies...". Could you rephrase it to bring more clarity? > > >> > >>> > > >> > >>> *Raymond,* > > >> > >>> > > >> > >>> > > >> > >>> If Direct I/O is enabled by default it will bring down the > > >> performance > > >> > of > > >> > >>> read-intensive application because, as Dmitry says, the reads > > bypass > > >> > page > > >> > >>> cache. So, I would recommend using it for write-intensive > > workloads > > >> > and, > > >> > >>> probably, for mixed-workloads depending on the reads and writes > > >> rate. > > >> > >>> > > >> > >>> -- > > >> > >>> Denis > > >> > >>> > > >> > >>> > > >> > >>> On Tue, Mar 20, 2018 at 2:29 PM, Raymond Wilson < > > >> > >>> raymond_wil...@trimble.com> > > >> > >>> wrote: > > >> > >>> > > >> > >>> > Looks good! > > >> > >>> > > > >> > >>> > Is there any reason why this should not be a default setting > if > > it > > >> > >>> > gracefully downgrades to non-Direct IO if not supported by the > > OS? > > >> > >>> > > > >> > >>> > Thanks, > > >> > >>> > Raymond. > > >> > >>> > > > >> > >>> > -----Original Message----- > > >> > >>> > From: Dmitriy Setrakyan [mailto:dsetrak...@apache.org] > > >> > >>> > Sent: Wednesday, March 21, 2018 10:23 AM > > >> > >>> > To: dev <dev@ignite.apache.org> > > >> > >>> > Subject: Re: Ignite Direct I/O plugin description added to > wiki > > >> > >>> > > > >> > >>> > Thanks Dmitry, awesome work! > > >> > >>> > > > >> > >>> > On Wed, Mar 21, 2018 at 12:21 AM, Dmitry Pavlov < > > >> > dpavlov....@gmail.com > > >> > >>> > > > >> > >>> > wrote: > > >> > >>> > > > >> > >>> > > Hi Igniters, > > >> > >>> > > > > >> > >>> > > I've added description of new plugin for Direct I/O for > native > > >> > >>> > > persistence ( > > >> > >>> > > https://issues.apache.org/jira/browse/IGNITE-6341) to wiki > > >> > >>> > > https://cwiki.apache.org/confluence/display/IGNITE/ > > >> > >>> > > > > Ignite+Persistent+Store+-+under+the+hood#IgnitePersistentStore- > > >> > >>> > > underthehood-DirectI/O > > >> > >>> > > > > >> > >>> > > > > >> > >>> > > SIncerely, > > >> > >>> > > Dmitriy Pavlov > > >> > >>> > > > > >> > >>> > > > >> > >>> > > >> > >> > > >> > > > > >> > > > >> > > > > > >
