Umbra, CedarDB: OOM on loading data

[alexey-milovidov]

It can't load data on a machine with 16 GB of memory or less.

[rschu1ze]

@toschmidt @lukasvogel

[ChrisWint]

Thanks for reporting, we'll look into it

[ChrisWint]

Created an issue for that in our Bugtracker to keep track of it: cedardb/issues#20

[ChrisWint]

@alexey-milovidov @rschu1ze This should be fixed for CedarDB in the latest release