Brian Peterson <[email protected]> writes:
> I see that there’s a property to allow configuring the number of pages
> to initially allocate to a table, derby.storage.initialPages, but
> there isn’t a property to allow for setting the number of pages to
> allocate when incrementally expanding the file container. It looks
> like RawStoreFactory might’ve allowed for this with
>
> public static final String PRE_ALLOCATE_PAGE =
> “derby.storage.pagePerAllocation”;
>
> but this isn’t reference by anything I can find.
I haven't tested that it actually works, but it appears to be referenced
in FileContainer.createInfoFromProp():
PreAllocSize =
PropertyUtil.getServiceInt(tc, createArgs,
RawStoreFactory.PRE_ALLOCATE_PAGE,
MIN_PRE_ALLOC_SIZE,
MAX_PRE_ALLOC_SIZE,
DEFAULT_PRE_ALLOC_SIZE /* default */);
If it turns out that setting the property works, we should probably try
to get it into the documentation, as it looks like it could be useful.
--
Knut Anders
