ArangoDB Server Cache Options

Since ArangoDB 3.2, the several core components of the server use a cachesystem which pools memory across many different cache tables. In order toprovide intelligent internal memory management, the system periodicallyreclaims memory from caches which are used less often and reallocates it tocaches which get more activity.

Rebalancing interval

Time between cache rebalancing attempts: —cache.rebalancing-interval

The value is specified in microseconds with a default of 2 seconds and aminimum of 500 milliseconds.

Cache size

Global size limit for all hash caches: —cache.size

The global caching system, all caches, and all the data contained therein willfit inside this limit. The size is specified in bytes. If there is less than4GiB of RAM on the system, the default value is 256MiB. If there is more,the default is (system RAM size - 2GiB) * 0.25.