Expose LMDB Sail GC Configurations

[odysa]

Problem description

VALUE_EVICTION_INTERVAL in LMDB is now hardcoded as 60 seconds. I want to expose this configuration so users can control the GC interval. Also, users should be able to disable/enable GC.

rdf4j/core/sail/lmdb/src/main/java/org/eclipse/rdf4j/sail/lmdb/ValueStore.java

Line 97 in cd6509b

private static final long VALUE_EVICTION_INTERVAL = 60000; // 60 seconds

Preferred solution

Make VALUE_EVICTION_INTERVAL configurable and add it to LmdbStoreConfig

Special case: If VALUE_EVICTION_INTERVAL <= 0, the LMDB GC should be disabled.

Are you interested in contributing a solution yourself?

Yes

Alternatives you've considered

Alternatively, if VALUE_EVICTION_INTERVAL <= 0, the LMDB should throw an exception.
We should use an additional config enableGC to control GC.

Anything else?

No response

[odysa]

@kenwenzel @hmottestad Hello, any thoughts on this configuration change? #5261

[hmottestad]

I'm currently on holiday, but I think @kenwenzel should have the required permissions to review and merge this.