memory consumption
Mats Wichmann
mats at wichmann.us
Thu Apr 1 10:21:30 EDT 2021
On 4/1/21 5:50 AM, Alexey wrote:
> Found it. As I said before the problem was lurking in the cache.
> Few days ago I read about circular references and things like that and
> I thought to myself that it might be the case. To build the cache I was
> using lots of 'setdefault' methods chained together
>
> self.__cache.setdefault(cluster_name, {}).setdefault(database_name, {})...
>
> and instead of wring a long lines I decided to divide it to increase
> readability
>
> cluster = self.__cache.setdefault(cluster_name, {})
> database = database.setdefault(database_name, {})
> ...
> and I guess that was the problem.
I guess it is worth mentioning here that there are people who feel you
shouldn't use setdefault() this way. setdefault is primarily a "getter",
which has the side effect of filling in dict entry if one did not exist
before returning it, and there some folks feel that using it primarily
as a "setter" is abusing the interface...
Do with that what you will :)
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