Thanks for your response.
 
I have increased my memory from 8 GB to 16 GB and trying to load the same 
amount of data and executing the same query. But still facing the same 
issue like CPU Utilization is more than 100% and its hangs off for couple 
of hours.
 
Below are the details for the same. Please help me on this.
 
 
JAVA_OPTS=-Xms512m -Xmx14336m

Tasks: 153 total,   1 running, 152 sleeping,   0 stopped,   0 zombie
Cpu(s): 25.7%us,  0.1%sy,  0.0%ni, 74.2%id,  0.0%wa,  0.0%hi,  0.0%si,  
0.0%st
Mem:  16436116k total,  3322464k used, 13113652k free,    65260k buffers
Swap:        0k total,        0k used,        0k free,   326288k cached
  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
11545 kn40169   18   0 4420m 2.4g 9804 S 102.5 15.4  30:36.49 java
 
Thanks,
Neelima.Kaliki
 

On Wednesday, May 1, 2013 7:02:40 PM UTC-4, Kartweel wrote:

>  You can try it and see if it works. -Xmx7000m or something like that. 
> But you may keep running out of memory. It might just be too much data to 
> fit. You might be better off trying using a file based database on an SSD?
>
> On 2/05/2013 12:03 AM, neelima kaliki wrote:
>
> So, if i increase my memory from 8GB, would i be able to resolve this 
> issue?
>  
> Thanks,
> Neelima.Kaliki
>
> On Wednesday, May 1, 2013 12:00:58 PM UTC-4, [email protected] wrote:
>
>>  AFAIK you are limiting the memory your VM will ever know about to 4g 
>> with this:
>>
>> JAVA_OPTS=-Xms512m -Xmx4076m
>>
>> therefore this
>>
>> Mem:   8174516k total,  3465712k used,  4708804k free,  
>>
>> does not mean that the VM could use the 4708804k you still have free. In 
>> the eyes of the VM, you're out of memory: 
>>
>>
>> On Wed, May 1, 2013 at 11:53 AM, neelima kaliki <[email protected]>wrote:
>>
>>> Thanks for your reply.
>>>  
>>> Below are the memory details of the linux box when the query is 
>>> executing. 
>>>  
>>>
>>> Cpu(s): 25.0%us,  0.2%sy,  0.0%ni, 74.7%id,  0.0%wa,  0.0%hi,  0.1%si,  
>>> 0.0%st
>>> Mem:   8174516k total,  3465712k used,  4708804k free,   148888k buffers
>>> Swap:        0k total,        0k used,        0k free,  1096344k cached
>>>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
>>>  3478 kn40169   17   0 2409m 1.6g 9808 S 100.9 20.0  19:40.60 java
>>>  
>>> JVM parameters for the H2 is as below:
>>>  
>>> JAVA_OPTS=-Xms512m -Xmx4076m
>>>
>>> I could not see any exceptions in the logs. There is almost 4GB free 
>>> memory available in that box as well. Please guide me further.
>>>
>>> Thanks,
>>>
>>> Neelima.Kaliki
>>>   
>>>
>>> On Wednesday, May 1, 2013 10:57:50 AM UTC-4, Kartweel wrote:
>>>
>>>>  Sounds like you are running out of memory. 
>>>>
>>>> What is the memory usage of the java process? and what JVM parameters 
>>>> are you using? 
>>>>
>>>> You'd expect CPU to be maxed out for an in-memory database. Something 
>>>> would have to max out. 
>>>>
>>>>
>>>> On 1/05/2013 9:40 PM, neelima kaliki wrote: 
>>>> > Below are my System details: 
>>>> > OS: Linux 
>>>> > Processors : 4 
>>>> > Memory: 8 GB 
>>>> > Below are my Application details: 
>>>> > Tables: In-Memory tables 
>>>> > Mode: Server/Embedded mode 
>>>> > Data: Arround 10 Million records 
>>>> > CPU utiliztion is more than 100% when a query is executing on huge 
>>>> > records and the system just hangs on. After couple of hours, getting 
>>>> > message as Database is closed and all my tables in Memory is getting 
>>>> > dropped off. This keeps repeating every time. The problem is same in 
>>>> > Server mode or Embedded mode. 
>>>> > Response is normal for less number records in the memory tables. 
>>>> > Please suggest to solve this issue. 
>>>> > Thanks, 
>>>> > Neelima.Kaliki 
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>>>>
>>>>
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