Memory allocation error (alloc'd: 40147483660, max: 40147483648) This is the workaround.

Question;

Memory allocation error (alloc'd: 40147483660, max: 40147483648)

Answer; 

This is the workaround.

Increasing this memory size will solve the problem.

*** How to add memory

From the conf directory of our installation directory

If you open the iflux.conf file
MAX_QPX_MEM = 40147483648
There is a portion that is.

You can increase this value.

Modify the value and restart it with ifluxadmin -k, ifluxaadmin -u
Please try the query statement.