🏋️‍♂️ Trading Performance for Index Size: The Art of a Leaner Solr
Sometimes, you’ve got to make a trade: a bit less speed for a lot less disk space.
Here’s how you can shrink your Solr index like a pro (and keep your server from bursting at the seams):
⚡ Field Types: Small Tweaks, Big Savings
- Go for
intinstead oftint
Using anintfield takes up less space than a trie integer (tint).
But beware!
Range queries onintwill be slower thantint. (It’s a classic “pick two out of three” scenario: fast, small, cheap.)
🔬 Time for a Field Audit!
-
Take a hard look at your fields.
Sometimes, to get a slimmer index, you need to be ruthless. -
Are you hoarding stored fields?
If you’ve got lots of stored fields, try this power move:- Remove stored fields from Solr.
- Query your main database for details after Solr gives you the results.
- Your index (and your disk) will thank you!
đź§ Schema Jedi Tricks
-
Add
omitNorms="true"
On text fields that don’t need length normalization.
(Translation: If you don’t care about short/long document bias, ditch the norms and reclaim space!) -
Add
omitPositions="true"
On text fields that don’t require phrase matching.
(You lose phrase search on those fields, but win back precious bytes.) -
Beware the NGram monster!
Special fields like NGrams can gobble up a ton of space.- Use them only where necessary.
- Regular text fields will do the trick in most cases.
🛑 Stop Words: Use ’Em!
- Are you removing stop words from text fields?
Common words like “the,” “and,” and “of” just take up space and slow down searching.- Remove them at index time and keep your index mean and lean!
✨ Final Pro Tips
- Every byte counts in large-scale Solr.
- Think before you index: Will I ever search/filter on this field?
- Regular “field cleanups” can save money and headaches.
Shrink smart, and may your search be speedy and your indexes svelte! 🚀🗜️

