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From Ray <ray...@cisco.com>
Subject Question about number of total onheap and offheap cache entries.
Date Sat, 30 Sep 2017 12:26:17 GMT
I have a cache with 1 million entries.
This cache is set up with partitioned cache mode and two backup.
So Ignite will store 3 million entries on all nodes, right?
But when I try run cache and cache command in vision, visor tells that this
cache has total 7.5 million rows.
So I'm confused, why does Ignite store 7.5 million rows?
And I'm using Ignite 2.1, and by default the cache is stored off heap.
But visor tells that 3.5 million entries are store onheap and the other 3.5
million is stored offheap.
Here's the visor log

visor> cache
[2017-09-30T12:15:10,497][INFO
][grid-nio-worker-tcp-comm-0-#65%null%][TcpCommunicationSpi] Established
outgoing communication connection [locAddr=/10.29.42.49:34233,
rmtAddr=sap-datanode3/10.29.42.46:49100]
[2017-09-30T12:15:10,509][INFO
][grid-nio-worker-tcp-comm-1-#66%null%][TcpCommunicationSpi] Established
outgoing communication connection [locAddr=/10.29.42.49:40210,
rmtAddr=sap-datanode5/10.29.42.48:49100]
[2017-09-30T12:15:10,514][INFO
][grid-nio-worker-tcp-comm-2-#67%null%][TcpCommunicationSpi] Established
outgoing communication connection [locAddr=/127.0.0.1:47416,
rmtAddr=/127.0.0.1:49100]
[2017-09-30T12:15:10,521][INFO
][grid-nio-worker-tcp-comm-3-#68%null%][TcpCommunicationSpi] Established
outgoing communication connection [locAddr=/10.29.42.49:17331,
rmtAddr=sap-datanode4/10.29.42.47:49100]
Time of the snapshot: 09/30/17, 12:15:10
+=============================================================================================================================+
|      Name(@)      |    Mode     | Nodes |     Entries (Heap / Off-heap)    
|   Hits    |  Misses   |   Reads   |  Writes   |
+=============================================================================================================================+
| DailyAggData(@c0) | PARTITIONED | 4     | min: 744297 (0 / 744297)         
| min: 0    | min: 0    | min: 0    | min: 0    |
|                   |             |       | avg: 752107.50 (0.00 /
752107.50) | avg: 0.00 | avg: 0.00 | avg: 0.00 | avg: 0.00 |
|                   |             |       | max: 758153 (0 / 758153)         
| max: 0    | max: 0    | max: 0    | max: 0    |
+-----------------------------------------------------------------------------------------------------------------------------+

Use "-a" flag to see detailed statistics.
visor> cache -a
Time of the snapshot: 09/30/17, 12:15:16
+=============================================================================================================================+
|      Name(@)      |    Mode     | Nodes |     Entries (Heap / Off-heap)    
|   Hits    |  Misses   |   Reads   |  Writes   |
+=============================================================================================================================+
| DailyAggData(@c0) | PARTITIONED | 4     | min: 744297 (0 / 744297)         
| min: 0    | min: 0    | min: 0    | min: 0    |
|                   |             |       | avg: 752107.50 (0.00 /
752107.50) | avg: 0.00 | avg: 0.00 | avg: 0.00 | avg: 0.00 |
|                   |             |       | max: 758153 (0 / 758153)         
| max: 0    | max: 0    | max: 0    | max: 0    |
+-----------------------------------------------------------------------------------------------------------------------------+

Cache 'DailyAggData(@c0)':
+-----------------------------------------------------------+
| Name(@)                     | DailyAggData(@c0)           |
| Nodes                       | 4                           |
| Total size Min/Avg/Max      | 744297 / 752107.50 / 758153 |
|   Heap size Min/Avg/Max     | 0 / 0.00 / 0                |
|   Off-heap size Min/Avg/Max | 744297 / 752107.50 / 758153 |
+-----------------------------------------------------------+

Nodes for: DailyAggData(@c0)
+==============================================================================================================+
|      Node ID8(@), IP       | CPUs | Heap Used | CPU Load |   Up Time    |        
Size         | Hi/Mi/Rd/Wr |
+==============================================================================================================+
| 7A05C9B9(@n3), | 56   | 8.31 %    | 0.00 %   | 30:06:45:032 | Total:
1507662       | Hi: 0       |
|                            |      |           |          |              |  
Heap: 753831       | Mi: 0       |
|                            |      |           |          |              |  
Off-Heap: 753831   | Rd: 0       |
|                            |      |           |          |              |  
Off-Heap Memory: 0 | Wr: 0       |
+----------------------------+------+-----------+----------+--------------+----------------------+-------------+
| B39533DA(@n1), | 56   | 17.61 %   | 0.00 %   | 30:08:13:327 | Total:
1488594       | Hi: 0       |
|                            |      |           |          |              |  
Heap: 744297       | Mi: 0       |
|                            |      |           |          |              |  
Off-Heap: 744297   | Rd: 0       |
|                            |      |           |          |              |  
Off-Heap Memory: 0 | Wr: 0       |
+----------------------------+------+-----------+----------+--------------+----------------------+-------------+
| 9A77BB1F(@n0),  | 56   | 36.69 %   | 0.00 %   | 30:08:22:742 | Total:
1516306       | Hi: 0       |
|                            |      |           |          |              |  
Heap: 758153       | Mi: 0       |
|                            |      |           |          |              |  
Off-Heap: 758153   | Rd: 0       |
|                            |      |           |          |              |  
Off-Heap Memory: 0 | Wr: 0       |
+----------------------------+------+-----------+----------+--------------+----------------------+-------------+
| 9EA73689(@n2),  | 56   | 26.96 %   | 0.03 %   | 30:07:55:786 | Total:
1504298       | Hi: 0       |
|                            |      |           |          |              |  
Heap: 752149       | Mi: 0       |
|                            |      |           |          |              |  
Off-Heap: 752149   | Rd: 0       |
|                            |      |           |          |              |  
Off-Heap Memory: 0 | Wr: 0       |
+--------------------------------------------------------------------------------------------------------------+

And I get the total entries using sql query "select count(*) from
MeetingAggValue;", the result is 1,002,810

Thanks



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