31 Commits (3841e9e396685846d89f1f29459c5ae4b185038a)

Author	SHA1	Message	Date
Paul Banks	96b9b95a19	Add cache.Notify to abstract watching for cache updates for types that support blocking semantics. (#4695)	6 years ago
Paul Banks	88388d760d	Support Agent Caching for Service Discovery Results (#4541) ... * Add cache types for catalog/services and health/services and basic test that caching works * Support non-blocking cache types with Cache-Control semantics. * Update API docs to include caching info for every endpoint. * Comment updates per PR feedback. * Add note on caching to the 10,000 foot view on the architecture page to make the new data path more clear. * Document prepared query staleness quirk and force all background requests to AllowStale so we can spread service discovery load across servers.	6 years ago
Paul Banks	e8ba527f23	Add a Close method to cache that stops background goroutines. (#4746) ... In a real agent the `cache` instance is alive until the agent shuts down so this is not a real leak in production, however in out test suite, every testAgent that is started and stops leaks goroutines that never get cleaned up which accumulate consuming CPU and memory through subsequent test in the `agent` package which doesn't help our test flakiness. This adds a Close method that doesn't invalidate or clean up the cache, and still allows concurrent blocking queries to run (for up to 10 mins which might still affect tests). But at least it doesn't maintain them forever with background refresh and an expiry watcher routine. It would be nice to cancel any outstanding blocking requests as well when we close but that requires much more invasive surgery right into our RPC protocol since we don't have a way to cancel requests currently. Unscientifically this seems to make tests pass a bit quicker and more reliably locally but I can't really be sure of that!	6 years ago
Paul Banks	8cbeb29e73	Fixes #4421: General solution to stop blocking queries with index 0 (#4437) ... * Fix theoretical cache collision bug if/when we use more cache types with same result type * Generalized fix for blocking query handling when state store methods return zero index * Refactor test retry to only affect CI * Undo make file merge * Add hint to error message returned to end-user requests if Connect is not enabled when they try to request cert * Explicit error for Roots endpoint if connect is disabled * Fix tests that were asserting old behaviour	6 years ago
Paul Banks	2e223ea2b7	Fix hot loop in cache for RPC returning zero index.	7 years ago
Paul Banks	43b48bc06b	Get agent cache tests passing without global hit count (which is racy). ... Few other fixes in here just to get a clean run locally - they are all also fixed in other PRs but shouldn't conflict. This should be robust to timing between goroutines now.	7 years ago
Mitchell Hashimoto	6b1e0a3003	agent/cache: always schedule the refresh	7 years ago
Mitchell Hashimoto	cf9b377c78	agent/cache: always fetch with minimum index of 1 at least	7 years ago
Mitchell Hashimoto	6b745964c4	agent/cache: update comment from PR review to clarify	7 years ago
Mitchell Hashimoto	45e49f31de	agent/cache: change behavior to return error rather than retry ... The cache behavior should not be to mask errors and retry. Instead, it should aim to return errors as quickly as possible. We do that here.	7 years ago
Mitchell Hashimoto	311d503fb0	agent/cache: perform backoffs on error retries on blocking queries	7 years ago
Paul Banks	1722734313	Verify trust domain on /authorize calls	7 years ago
Mitchell Hashimoto	4f3b5647e5	agent/cache: change uint8 to uint	7 years ago
Mitchell Hashimoto	fc5508f8a3	agent/cache: string through attempt rather than storing on the entry	7 years ago
Mitchell Hashimoto	cfcd733609	agent/cache: implement refresh backoff	7 years ago
Mitchell Hashimoto	bd3b8e042a	agent/cache: address PR feedback, lots of typos	7 years ago
Mitchell Hashimoto	194b256861	agent/cache: send the total entries count on eviction to go-metrics	7 years ago
Mitchell Hashimoto	e0d964188c	agent/cache: make edge case with prev/next idx == 0 handled better	7 years ago
Mitchell Hashimoto	3b550d2b72	agent/cache: rework how expiry data is stored to be more efficient	7 years ago
Mitchell Hashimoto	595193a781	agent/cache: initial TTL work	7 years ago
Mitchell Hashimoto	1df99514ca	agent/cache: send the RefreshTimeout into the backend fetch	7 years ago
Mitchell Hashimoto	db4c47df27	agent/cache: on error, return from Get immediately, don't block forever	7 years ago
Mitchell Hashimoto	cc2c98f961	agent/cache: lots of comment/doc updates	7 years ago
Mitchell Hashimoto	e1c1b8812a	agent/cache: return the error as part of Get	7 years ago
Mitchell Hashimoto	00e7ab3cd5	agent/cache: integrate go-metrics so the cache is debuggable	7 years ago
Mitchell Hashimoto	fcb15e15ae	agent/cache: support timeouts for cache reads and empty fetch results	7 years ago
Mitchell Hashimoto	917a9e63d5	agent: check cache hit count to verify CA root caching, background update	7 years ago
Mitchell Hashimoto	c329b4cb34	agent/cache: partition by DC/ACL token	7 years ago
Mitchell Hashimoto	e3c1162881	agent/cache: Reorganize some files, RequestInfo struct, prepare for partitioning	7 years ago
Mitchell Hashimoto	975be337a9	agent/cache: blank cache key means to always fetch	7 years ago
Mitchell Hashimoto	1cfb0f1922	agent/cache: initial kind-of working cache	7 years ago