Difference between revisions of "Installing and using KDB / Kx"
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q) | q) | ||
| + | </pre> | ||
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| + | To exit the q) shell use ```\\``` | ||
| + | <pre> | ||
| + | q)\\ | ||
| + | [root@deploy-ext q]# | ||
</pre> | </pre> | ||
Revision as of 07:56, 21 May 2021
Installation
[root@deploy-ext kdb]# unzip l64.zip Archive: l64.zip inflating: l64/q inflating: q.k
Copy over the license
[root@deploy-ext q]# pwd /root/q [root@deploy-ext q]# tree . ├── kc.lic ├── l64 │ └── q ├── l64.zip └── q.k 1 directory, 4 files
License was only for 16 cores - so we need to use numa to run
[root@deploy-ext kdb]# l64/q KDB+ 4.0 2021.04.26 Copyright (C) 1993-2021 Kx Systems l64/ 40(16)core 128545MB root deploy-ext.dt.internal 192.168.10.1 david@petagene.com KOD #4176253 'licence error: cores
Using affinity to run Kx
# Check NUMA support [root@deploy-ext q]# grep NUMA=y /boot/config-`uname -r` CONFIG_NUMA=y # If NUMA is not enabled [root@deploy-ext q]# taskset -c 0,1 l64/q KDB+ 4.0 2021.04.26 Copyright (C) 1993-2021 Kx Systems l64/ 2(16)core 128545MB root deploy-ext.dt.internal 192.168.10.1 EXPIRE 2022.05.17 david@petagene.com KOD #4176253 q) # If NUMA is enabled [root@deploy-ext q]# echo 0 > /proc/sys/vm/zone_reclaim_mode [root@deploy-ext q]# numactl --interleave=all --physcpubind=0,1,2 l64/q KDB+ 4.0 2021.04.26 Copyright (C) 1993-2021 Kx Systems l64/ 3(16)core 128545MB root deploy-ext.dt.internal 192.168.10.1 EXPIRE 2022.05.17 david@petagene.com KOD #4176253 q)
To exit the q) shell use ```\\```
q)\\ [root@deploy-ext q]#