Monday, February 27, 2017

Re: [google-cloud-sql-discuss] Re: Debugging "Out of memory (Needed XXXXXXX bytes)" error

Hi,

you could say the data set is large (~10G) but the particular query that caused troubles is using a temporary table with just a fraction of the entire table. It is using JOIN but I'm 99% sure that we had the same error on a query with just a single, relatively small table.

Before migration to GC we had no issues with this even on much larger data sets. Since the application's codebase didn't change nor the dataset increased too much, the issue seems to be related to a) mysql settings b) version of mysql c) server setup - because that's what was changed as result of migration.

Since the issue seems to be resolved I can't spend too much time on this now but I'll try to prepare a test data set so it is easy to reproduce the issue and share it with you. 

best,
Ann

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