insert so slow via JDBC thin driver

2017-12-14 Thread Michael Jay
Hello, I am a new Ignite leaner. I want to insert 50,000,000 rows into a table. Here,i got a problem. When one host and one sever node, the speed of insert is about 2,000,000 per minute, the usage of cpu is 30-40%; however two hosts and two sever nodes, about 100,000 per minute,and the usage of cp

Re: Cannot insert data into table using JDBC

2017-12-19 Thread Michael Jay
Hi,has it been solved or is it a bug? I just met with the same problem.When I set "streaming=false" ,it worked, data can be inserted via JdbcClientDriver. However, when streaming=true, I got message that said "schema not found" . Thanks. -- Sent from: http://apache-ignite-users.70518.x6.nabble.c

How to make full use of network bandwidth?

2018-01-04 Thread Michael Jay
Hi, I have two physical hosts, each host has a sever node, node A and node B. I created a table and inserted data into table via JDBCthin driver. But the performance of inserting is poor. When the bandwidth of network is 100Mbps, the throughput from node A to node B is only about 2Mbps, 1 million r

Re: How to make full use of network bandwidth?

2018-01-08 Thread Michael Jay
Thank you, Alexey. I'll try you advice and let you know the result later. Thanks again. -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Cannot insert data into table using JDBC

2018-01-18 Thread Michael Jay
Thanks a lot. -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: How to make full use of network bandwidth?

2018-02-24 Thread Michael Jay
Sorry, I almost forgot it. I have tried the suggestions above, but it didn't work well. Finally, I changed the parameter of writeSynchronizationMode to "FULL_AYSNC", it worked. -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Getting "BinaryObjectException: Failed to deserialize object" while trying to execute the application using multi node

2018-03-28 Thread Michael Jay
Hi, val. I just met with the same problem. Would you mind giving more detailed solutions? thanks -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Problem of datastorage after compute finished

2018-04-13 Thread Michael Jay
Hi, all! I am trying to use the computegird of ignite to do some compute job, but I met a problem. I started two server nodes(different host) to form a clustergroup. Node_A was started by eclipse, Node_B was started by ignite.cmd, two nodes had the same configurations except heap size(Node_A heap_s

Re: Problem of datastorage after compute finished

2018-04-13 Thread Michael Jay
Really appreciate for your reply, Andrei. Now I understand why the result didn't store on the same node where it was calculated. I will try your suggestions. But there still remain a problem that job b,d,f were calculated on Node_B, the results were lost. No partitions store these jobs' results. t

What does "Non heap" mean in the log?

2018-04-25 Thread Michael Jay
Hi, I am confused about "Non heap" here, what does it represent and where it will be used? What the difference between "Non heap" and off-heap? Moreover, how to change its size?