2 Commits

Author	SHA1	Message	Date
Dmitrii Kovalkov	385324ee8a	pageserver: fix post-merge PR comments on basebackup cache (#12216) ... ## Problem This PR addresses all but the direct IO post-merge comments on basebackup cache implementation. - Follow up on https://github.com/neondatabase/neon/pull/11989#pullrequestreview-2867966119 - Part of https://github.com/neondatabase/cloud/issues/29353 ## Summary of changes - Clean up the tmp directory by recreating it. - Recreate the tmp directory on startup. - Add comments why it's safe to not fsync the inode after renaming.	2025-06-13 08:49:31 +00:00
Dmitrii Kovalkov	136eaeb74a	pageserver: basebackup cache (hackathon project) (#11989) ... ## Problem Basebackup cache is on the hot path of compute startup and is generated on every request (may be slow). - Issue: https://github.com/neondatabase/cloud/issues/29353 ## Summary of changes - Add `BasebackupCache` which stores basebackups on local disk. - Basebackup prepare requests are triggered by `XLOG_CHECKPOINT_SHUTDOWN` records in the log. - Limit the size of the cache by number of entries. - Add `basebackup_cache_enabled` feature flag to TenantConfig. - Write tests for the cache ## Not implemented yet - Limit the size of the cache by total size in bytes --------- Co-authored-by: Aleksandr Sarantsev <aleksandr@neon.tech>	2025-05-22 12:45:00 +00:00