Hello Vladimir, Thanks for your reply, I will carefully refer to the link you sent to see how it is written differently from mine. If there is a problem, I will ask for help again.(hope not) By the way, i am not Russiasn. I am a young developer from China and studied ignite for more than a year : ）
Tianyue Hu 2022/4/20 在 2022-04-19 17:12:39，"Vladimir Tchernyi" <vtcher...@gmail.com> 写道： Hello Huty, please read my post [1]. The approach in that paper works successfully in production for more than one year and seems to be correct [1] https://www.gridgain.com/resources/blog/how-fast-load-large-datasets-apache-ignite-using-key-value-api Vladimir telegram @vtchernyi PS hope I named you correct, the name is not widespread here in Russia вт, 19 апр. 2022 г. в 09:46, y <hty1994...@163.com>: Hi Vladimir, Thank you for your answer. Emmm.....Actually, most of my methods are the same as yours except for the following two points： 1、I didn't use ComputeTask. The data is sent to the server node through the thin client. 2、I didn't use the standard POJO. Key-type is the following code and value-type is an empty class. That means All columns are dynamically specified through BinaryObjectBuilder. public class PubPartionKeys_1_7 { @AffinityKeyMapped private String TBDATA_DX01; private String TBDATA_DX02; private String TBDATA_DX03; private String TBDATA_DX04; private String TBDATA_DX05; private String TBDATA_DX06; private String TBDATA_DX07; public PubPartionKeys_1_7() { } // get/set method // ..... } I would be appreciate it very much if you attach your code back！ ：） Huty， 2022/4/19 At 2022-04-19 12:40:20, vtcher...@gmail.com wrote: Hi, I have had the same experience without sql, using KV API only. My cluster consists of several data nodes and self-written jar application that starts the client node. When started, client node executes mapreduce tasks for data load and processing. The workaround is as follows: 1. create POJO on the client node; 2. convert it to the binary object; 3. on the data node, get binary object over the network and get its builder (obj.toBuilder()); 4. set some fields, build and put in the cache. The builder on the step 3 seems to be the same as the one on the cluent node. Hope that helps, Vladimir 13:06, 18 апреля 2022 г., y <hty1994...@163.com>: Hi , When using binary to insert data, I need to get an exist BinaryObject/BinaryObjectBuilder from the database, similar to the code below. 442062c6$3$1803c222cba$Coremail$hty1994712$163.com If I create a BinaryObjectBuilder directly, inserting binary data does not map to table data. The following code will not throw error, but the data is not mapped to sql. If there is no data in my table at first, how can I insert data? 3ecbd8f9$4$1803c222cba$Coremail$hty1994712$163.com -- Отправлено из мобильного приложения Яндекс Почты
