Hi everybody!
With ClickHouse as data backend, I'm often getting "out of memory" error, such as one on the picture. Apart from increasing memory on my ClickHouse what can I do to fix it? [Curiously, the ClickHouse has 32 GB of RAM, and somehow the limit is less than 10 GB]
Is it possible that GB is generating "not the most optimal" queries, and is there a way to improve it (tune) for me as a user?
h
helpful-application-7107
08/15/2023, 3:02 PM
Some things you can do:
1. Try to ensure your experiment assignment and metrics tables are date partitioned.
2. Test whether the query partitions are being used by adding
WHERE <YOUR_DATE_COLUMN> >= '{{ startDate }}' AND <YOUR_DATE_COLUMN> <= '{{ endDate }}'
to your queries, in the off chance that our own date filters are not properly hitting your partitions (see more here: https://docs.growthbook.io/app/datasources#sql-template-variables)
3. Consider whether 10GB is really a good minimum? Given many of our user's data sizes, a 10GB minimum could be pretty limiting.
w
worried-lawyer-21676
08/16/2023, 10:06 AM
Thanks, I'll try the step number 2 first
worried-lawyer-21676
08/17/2023, 6:06 AM
@helpful-application-7107 Thank you, number 2 helped with combination of disabling of Activation Metric in the experiment settings