Home › Forums › kdb+ › mmap increasing every time table is queried › Re: mmap increasing every time table is queried
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Yeah sounds like a good approach. We haven’t gotten to upgrade yet, in the meantime I see errors like this in my HDB when I’ve queried the same table a number of times
./2021.07.27/orders/aSymbolColumn. OS reports: Cannot allocate memory
When this happens .Q.w[] looks like the below example, where `mmap` has ballooned but `used` is ok:
used 204451472 heap 805306368 peak 3422552064 wmax 0 mmap 5866853440032 mphy 809955348480 syms 453383 symw 44899939