Hi Woo, DataStreamer is designed to fill cache with maximum throughput. By default, streamer will not rewrite cache data, until allowOverwite option is set.
Why you need to input same set of data? Why do you expected data input time will change significantly with 2 programs compared to 1 if data set is put twice? Or I missed smth? Anyway, if you do not get a speed up but you sure you should, then a bottleneck have to be found at first. On Fri, Apr 21, 2017 at 5:02 AM, woo charles <ignite.charl...@gmail.com> wrote: > If the data is buffered in client side, the bottleneck should be also in > client side. > If I use 2 programs to input same set data, it should be a significant > change in data input time. > Is it right? > > 2017-04-21 6:46 GMT+08:00 Dmitriy Setrakyan <dsetrak...@apache.org>: > >> >> On Wed, Apr 19, 2017 at 10:16 PM, woo charles <ignite.charl...@gmail.com> >> wrote: >> >>> When I call addData() in streamer. this data will send & buffer in >>> server node. is that correct? >>> If I correct, this data will buffer in random server node or only the >>> one it directly connected? >>> >> >> addData() will buffer the data on the client side. As a matter of fact, >> there are multiple buffers on the client side, which each buffer associated >> with some server node. >> >> Ignite will never send the data to a random node. The data is always sent >> exactly to the node where it will be cached. >> >> D. >> > > -- Best regards, Andrey V. Mashenkov
