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Paul Banks 0b5a078b95
Optimize health watching to single chan/goroutine. (#5449) 
Refs #4984.

Watching chans for every node we touch in a health query is wasteful. In #4984 it shows that if there are more than 682 service instances we always fallback to watching all services which kills performance.

We already have a record in MemDB that is reliably update whenever the service health result should change thanks to per-service watch indexes.

So in general, provided there is at least one service instances and we actually have a service index for it (we always do now) we only ever need to watch a single channel.

This saves us from ever falling back to the general index and causing the performance cliff in #4984, but it also means fewer goroutines and work done for every blocking health query.

It also saves some allocations made during the query because we no longer have to populate a WatchSet with 3 chans per service instance which saves the internal map allocation.

This passes all state store tests except the one that explicitly checked for the fallback behaviour we've now optimized away and in general seems safe.
 		2019-03-15 20:18:48 +00:00
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autopilot autopilot: don't follow the normal server removal rules for nonvoters 2018-08-14 14:24:51 -07:00
fsm Store leaf cert indexes in raft and use for the ModifyIndex on the returned certs (#5211) 2019-01-11 16:04:57 -05:00
prepared_query Allow ignoring checks by ID when defining a PreparedQuery. Fixes #3727. 2018-04-10 14:04:16 +01:00
state Optimize health watching to single chan/goroutine. (#5449) 2019-03-15 20:18:48 +00:00
acl.go acl: reduce complexity of token resolution process with alternative singleflighting (#5480) 2019-03-14 09:35:34 -05:00
acl_client.go New ACLs (#4791) 2018-10-19 12:04:07 -04:00
acl_endpoint.go fix typos reported by golangci-lint:misspell (#5434) 2019-03-06 11:13:28 -06:00
acl_endpoint_legacy.go acl: add stub hooks to support some plumbing in enterprise (#4951) 2018-11-13 15:35:54 -06:00
acl_endpoint_test.go fix typos 2019-03-06 14:47:33 -05:00
acl_replication.go Fixes for CVE-2019-8336 2019-03-04 19:13:24 +00:00
acl_replication_legacy.go ACL Token Persistence and Reloading (#5328) 2019-02-27 14:28:31 -05:00
acl_replication_legacy_test.go ACL Token Persistence and Reloading (#5328) 2019-02-27 14:28:31 -05:00
acl_replication_test.go Fixes for CVE-2019-8336 2019-03-04 19:13:24 +00:00
acl_server.go ACL Token Persistence and Reloading (#5328) 2019-02-27 14:28:31 -05:00
acl_test.go acl: reduce complexity of token resolution process with alternative singleflighting (#5480) 2019-03-14 09:35:34 -05:00
autopilot.go Remove deprecated metric names 2018-05-08 16:23:15 -07:00
autopilot_oss.go Fix vet error 2017-12-18 18:04:42 -08:00
autopilot_test.go autopilot: don't follow the normal server removal rules for nonvoters 2018-08-14 14:24:51 -07:00
catalog_endpoint.go Merge pull request #4869 from hashicorp/txn-checks 2019-01-22 11:16:09 -08:00
catalog_endpoint_test.go Avoid to have infinite recursion in DNS lookups when resolving CNAMEs (#4918) 2019-01-07 16:53:54 -05:00
client.go agent: enable reloading of tls config (#5419) 2019-03-13 10:29:06 +01:00
client_serf.go Call RemoveServer for reap events (#5317) 2019-03-04 09:19:35 -05:00
client_test.go improve flaky LANReap tests by expliciting configuring the tombstone timeout 2019-03-05 14:34:03 -06:00
config.go agent: enable reloading of tls config (#5419) 2019-03-13 10:29:06 +01:00
connect_ca_endpoint.go fix typos reported by golangci-lint:misspell (#5434) 2019-03-06 11:13:28 -06:00
connect_ca_endpoint_test.go fix typos reported by golangci-lint:misspell (#5434) 2019-03-06 11:13:28 -06:00
consul_ca_delegate.go Move connect CA provider to separate package 2018-06-14 09:42:15 -07:00
coordinate_endpoint.go New ACLs (#4791) 2018-10-19 12:04:07 -04:00
coordinate_endpoint_test.go New ACLs (#4791) 2018-10-19 12:04:07 -04:00
enterprise_client_oss.go Allow for easy enterprise/oss coexistence 2018-05-24 10:36:42 -04:00
enterprise_server_oss.go oss: add the enterprise server stub for intention replication check 2019-01-18 17:32:10 -08:00
filter.go txn: add ACL enforcement/validation to new txn ops 2018-12-12 10:04:10 -08:00
filter_test.go New ACLs (#4791) 2018-10-19 12:04:07 -04:00
flood.go Add segment addr field to tags for LAN flood joiner 2017-08-30 11:58:29 -07:00
health_endpoint.go bugfix: use ServiceTags to generate cache key hash (#4987) 2019-01-07 21:30:47 +00:00
health_endpoint_test.go bugfix: use ServiceTags to generate cache key hash (#4987) 2019-01-07 21:30:47 +00:00
helper_test.go acl: Prevent tokens from deleting themselves (#5210) 2019-01-10 09:22:51 -05:00
intention_endpoint.go connect: Forward intention RPCs if this isn't the primary 2019-01-22 11:29:21 -08:00
intention_endpoint_test.go New ACLs (#4791) 2018-10-19 12:04:07 -04:00
internal_endpoint.go New ACLs (#4791) 2018-10-19 12:04:07 -04:00
internal_endpoint_test.go New ACLs (#4791) 2018-10-19 12:04:07 -04:00
issue_test.go Moves the FSM into its own package. 2017-11-29 18:36:53 -08:00
kvs_endpoint.go New ACLs (#4791) 2018-10-19 12:04:07 -04:00
kvs_endpoint_test.go New ACLs (#4791) 2018-10-19 12:04:07 -04:00
leader.go Fixes for CVE-2019-8336 2019-03-04 19:13:24 +00:00
leader_oss.go re-add Connect multi-dc config changes 2018-10-19 08:41:03 -07:00
leader_test.go Avoid to have infinite recursion in DNS lookups when resolving CNAMEs (#4918) 2019-01-07 16:53:54 -05:00
merge.go Takes the skip out of the client check. 2017-09-06 17:05:40 -07:00
merge_test.go Skips unique node ID check for old versions of Consul. 2017-09-05 22:57:29 -07:00
operator_autopilot_endpoint.go New ACLs (#4791) 2018-10-19 12:04:07 -04:00
operator_autopilot_endpoint_test.go New ACLs (#4791) 2018-10-19 12:04:07 -04:00
operator_endpoint.go pkg refactor 2017-06-10 18:52:45 +02:00
operator_raft_endpoint.go New ACLs (#4791) 2018-10-19 12:04:07 -04:00
operator_raft_endpoint_test.go [Travis][UnstableTests] Fixed unstable tests in travis (#5013) 2018-12-12 12:09:42 -08:00
prepared_query_endpoint.go Improve Connect with Prepared Queries (#5291) 2019-02-04 09:36:51 -05:00
prepared_query_endpoint_test.go Improve Connect with Prepared Queries (#5291) 2019-02-04 09:36:51 -05:00
raft_rpc.go agent: move conn pool for muxed connections into separate pkg 2017-06-21 05:42:39 +02:00
rpc.go fix typos reported by golangci-lint:misspell (#5434) 2019-03-06 11:13:28 -06:00
rpc_test.go Fixed another list of unstable unit tests in travis (#4915) 2018-11-20 11:27:26 +00:00
rtt.go Added Coordinate.Node rpc endpoint and client api method 2017-10-26 19:16:40 -07:00
rtt_test.go Fix more unstable tests in agent and command 2018-09-12 14:49:27 +01:00
segment_oss.go Remove deprecated metric names 2018-05-08 16:23:15 -07:00
serf_test.go pkg refactor 2017-06-10 18:52:45 +02:00
server.go agent: enable reloading of tls config (#5419) 2019-03-13 10:29:06 +01:00
server_lookup.go More cleanup from code review 2017-08-30 12:31:36 -05:00
server_lookup_test.go More cleanup from code review 2017-08-30 12:31:36 -05:00
server_oss.go connect: tame thundering herd of CSRs on CA rotation (#5228) 2019-01-22 17:19:36 +00:00
server_serf.go Call RemoveServer for reap events (#5317) 2019-03-04 09:19:35 -05:00
server_test.go agent: enable reloading of tls config (#5419) 2019-03-13 10:29:06 +01:00
session_endpoint.go New ACLs (#4791) 2018-10-19 12:04:07 -04:00
session_endpoint_test.go New ACLs (#4791) 2018-10-19 12:04:07 -04:00
session_timers.go address review comments 2017-07-07 09:22:34 +02:00
session_timers_test.go rpc: refactor sessionTimers and fix racy tests 2017-07-07 09:22:34 +02:00
session_ttl.go Remove deprecated metric names 2018-05-08 16:23:15 -07:00
session_ttl_test.go [Travis][UnstableTests] Fixed unstable tests in travis (#5013) 2018-12-12 12:09:42 -08:00
snapshot_endpoint.go New ACLs (#4791) 2018-10-19 12:04:07 -04:00
snapshot_endpoint_test.go New ACLs (#4791) 2018-10-19 12:04:07 -04:00
stats_fetcher.go Fix stats fetcher healthcheck RPCs not being independent 2018-08-14 14:23:52 -07:00
stats_fetcher_test.go Fix more unstable tests in agent and command 2018-09-12 14:49:27 +01:00
status_endpoint.go Move autopilot to a standalone package 2017-12-11 16:45:33 -08:00
status_endpoint_test.go Fixed another list of unstable unit tests in travis (#4915) 2018-11-20 11:27:26 +00:00
txn_endpoint.go fix typos reported by golangci-lint:misspell (#5434) 2019-03-06 11:13:28 -06:00
txn_endpoint_test.go txn: add tests for RPC endpoint 2018-12-12 10:04:10 -08:00
util.go Remaining ACL Unit Tests (#4852) 2018-10-31 13:00:46 -07:00
util_test.go pkg refactor 2017-06-10 18:52:45 +02:00