9 Commits

Author	SHA1	Message	Date
tidwall	2c643996e7	Immutable Object type	2022-09-20 14:20:53 -07:00
tidwall	1177bbb80c	Moved root collection keys into generic btree. ... Also updated the background expires logic to remove an extra allocation.	2022-09-13 08:16:41 -07:00
Benjamin Ramser	bc62edb692	feat: add sector	2021-09-05 11:48:34 +02:00
tidwall	9e68703841	Update expiration logic ... This commit changes the logic for managing the expiration of objects in the database. Before: There was a server-wide hashmap that stored the collection key, id, and expiration timestamp for all objects that had a TTL. The hashmap was occasionally probed at 20 random positions, looking for objects that have expired. Those expired objects were immediately deleted, and if there was 5 or more objects deleted, then the probe happened again, with no delay. If the number of objects was less than 5 then the there was a 1/10th of a second delay before the next probe. Now: Rather than a server-wide hashmap, each collection has its own ordered priority queue that stores objects with TTLs. Rather than probing, there is a background routine that executes every 1/10th of a second, which pops the expired objects from the collection queues, and deletes them. The collection/queue method is a more stable approach than the hashmap/probing method. With probing, we can run into major cache misses for some cases where there is wide TTL duration, such as in the hours or days. This may cause the system to occasionally fall behind, leaving should-be expired objects in memory. Using a queue, there is no cache misses, all objects that should be expired will be right away, regardless of the TTL durations. Fixes #616	2021-07-12 13:37:50 -07:00
tidwall	6b08f7fa9e	Code cleanup ... - Removed unused functions and variables - Wrapped client formatted errors - Updated deprecated packages - Changed suggested code patterns	2021-03-31 08:13:44 -07:00
tidwall	951fc58e02	Match geometry indexing to server config	2020-03-25 15:35:31 -07:00
Alex Roitman	d0ca579f5c	Add area expressions. ... Add parser. Hook up to test command. Add tests for expressions in test command.	2019-06-10 14:47:42 -07:00
tidwall	fb7259b10b	Changed clip errors and json result type	2019-02-12 05:33:20 -07:00
Alex Roitman	c849ab19ac	Implement test command	2019-02-08 13:57:29 -08:00