Hi Rana,
The memory used for query processing is automatically calculated as follows:
JVM Max Memory - storage.buffercache.size - storage.memorycomponent.globalbudget
The documentation defaults for these parameters are outdated. The default value
for storage.buffercache.size is (JVM Max Memory / 4) and it's the same for
storage.memorycomponent.globalbudget. Since your dataset is already loaded, you
could reduce the budget of storage.memorycomponent.globalbudget. In addition,
if I recall correctly, your dataset size is way smaller than what's allocated
for the buffer cache, so you might want to reduce the buffer cache budget. That
should give you more than enough memory to execute on 39 cores.
Cheers,
Murtadha
On 01/29/2018, 3:30 AM, "Mike Carey" <dtab...@gmail.com> wrote:
+ dev
On 1/28/18 3:37 PM, Rana Alotaibi wrote:
> Hi all,
>
> I would like to make AsterixDB utilizes all available CPU cores (39)
> that I have for the following query:
>
> USE mimiciii;
> SET `compiler.parallelism` "39";
> SET `compiler.sortmemory` "128MB";
> SET `compiler.joinmemory` "265MB";
> SELECT P.SUBJECT_ID
> FROM LABITEMS I, PATIENTS P, P.ADMISSIONS A, A.LABEVENTS E
> WHERE E.ITEMID/*+bcast*/=I.ITEMID AND
> E.FLAG = 'abnormal' AND
> I.FLUID='Blood' AND
> I.LABEL='Haptoglobin'
>
>
> The total memory size that I have is 125GB(57GB for the AsterixDB
> buffer cache). By running the above query, I got the following error:
>
> "msg": "HYR0009: Job requirement (memory: 10705403904 bytes, CPU
> cores: 39) exceeds capacity (memory: 3258744832 bytes, CPU cores: 39)"
>
> How can I change this capacity default configuration? I'm looking into
> this page : https://asterixdb.apache.org/docs/0.9.2/ncservice.html .
> Could you please point me to the appropriate configuration parameter?
>
> Thanks
> -- Rana
>
>
>
>
