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74 Commits

Author SHA1 Message Date
James Phillips 4a3d7db24f
Adds ability to deregister a service based on critical check state longer than a timeout. 2016-08-16 01:00:26 -07:00
Sean Chittenden e9a2f5b40c
Chase casting types.CheckID to a string into the state_store. 
It turns out the indexer can only use strings as arguments when
creating a query.  Cast `types.CheckID` to a `string` before calling
into `memdb`.

Ideally the indexer would be smart enough to do this at compile-time,
but I need to look into how to do this without reflection and the
runtime package.  For the time being statically cast `types.CheckID`
to a `string` at the call sites.
 2016-06-07 16:59:02 -04:00
Sean Chittenden 63adcbd5ef
Revert "Move `structs.CheckID` to a new top-level package, `types`." 
This reverts commit 2bbd52e3b44ff1b60939a8400264d534662d6d51.
 2016-06-07 16:59:02 -04:00
Sean Chittenden cbb945e76a
Move `structs.CheckID` to a new top-level package, `types`. 
Per discussion w/ @slackpad, move this type to its own top-level package
 2016-06-07 16:59:02 -04:00
Sean Chittenden f5ab25163e
Move `structs.CheckID` to a new top-level package, `types`. 
Per discussion w/ @slackpad, move this type to its own top-level package
 2016-06-07 16:59:02 -04:00
Sean Chittenden ddbe64a8c8
Float a type balloon. Some strings are square pegs in round holes. 
This experiment was brought about because of variable naming
confusion where name and checkIDs were interchanged.  Gave CheckID
an Qualified Type Name and chased downstream changes.
 2016-06-07 16:59:02 -04:00
James Phillips f541acb0ec Makes a detached copy of the tags when doing the override. 2016-04-11 14:53:18 -07:00
James Phillips a885f1bdff Tweaks comment about side effects. 2016-04-11 08:58:17 -07:00
James Phillips ed86e5cc72 Adds a clone method to HealthCheck and uses that in local.go. 2016-04-11 00:05:39 -07:00
James Phillips cfe0651208 Syncs a check's output with the catalog when output rate limiting isn't in effect. 2016-04-10 21:20:39 -07:00
James Phillips 56cbabff63 Adds a sanity check to the local node info compare. 2016-02-07 15:07:23 -08:00
James Phillips 4be2ab1a75 Moves tagged wan address to be managed by anti-entropy, not serf. 2016-02-07 13:12:42 -08:00
James Phillips c60a526fde Sets up config for more address tags down the road, renames struct members. 2016-02-07 10:37:34 -08:00
Evan Gilman de8fd561d0 Use a map for additional node addresses 2016-02-06 23:01:45 -08:00
Evan Gilman 496cf5ae73 Implement `translate_wan_addrs` config option 
This knob tells consul whether it should prefer the WAN address (if set)
when making service lookups in remote datacenters. This enables
reachability for remote services which are behind a NAT.
 2016-02-06 23:01:45 -08:00
James Phillips ed8a71efd7 Store WanAddress during Service/Check sync 2016-02-06 23:01:45 -08:00
Sean Chittenden 7af6a94edb Factor out duplicate functions into a lib package 
Consolidate code duplication and tests into a single lib package.  Most of these functions were from various **/util.go functions that couldn't be imported due to cyclic imports.  The consul/lib package is intended to be a terminal node in an import DAG and a place to stash various consul-only helper functions.  Pulled in hashicorp/go-uuid instead of consolidating UUID access.
 2016-01-29 16:57:45 -08:00
WangFenjin 29c0516d58 Fix typo 2015-12-08 17:45:01 +08:00
James Phillips d06fc28a0a Prevents agents from considering Raft information when doing sync checks. 2015-10-28 14:32:00 -07:00
Armon Dadgar d137a5fa82 agent: remove an N^2 check. See #1265 2015-10-12 20:30:11 -07:00
James Phillips 0b05dbeb21 Merge pull request #1235 from wuub/master 
fix conflict between handleReload and antiEntropy critical sections
 2015-09-17 07:28:39 -07:00
Wojciech Bederski c4537ed26f panic when unbalanced localState.Resume() is detected 2015-09-17 11:32:08 +02:00
Wojciech Bederski b014c0f91b make Pause()/Resume()/isPaused() behave more like a semaphore 
see: https://github.com/hashicorp/consul/issues/1173 #1173

Reasoning: somewhere during consul development Pause()/Resume() and
PauseSync()/ResumeSync() were added to protect larger changes to
agent's localState.  A few of the places that it tries to protect are:

- (a *Agent) AddService(...)      # part of the method
- (c *Command) handleReload(...)  # almost the whole method
- (l *localState) antiEntropy(...)# isPaused() prevents syncChanges()

The main problem is, that in the middle of handleReload(...)'s
critical section it indirectly (loadServices()) calls  AddService(...).
AddService() in turn calls Pause() to protect itself against
syncChanges(). At the end of AddService() a defered call to Resume() is
made.

With the current implementation, this releases
isPaused() "lock" in the middle of handleReload() allowing antiEntropy
to kick in while configuration reload is still in progress.
Specifically almost all services and probably all check are unloaded
when syncChanges() is allowed to run.

This in turn can causes massive service/check de-/re-registration,
and since checks are by default registered in the critical state,
a majority of services on a node can be marked as failing.
It's made worse with automation, often calling `consul reload` in close
proximity on many nodes in the cluster.

This change basically turns Pause()/Resume() into P()/V() of
a garden-variety semaphore. Allowing Pause() to be called multiple times,
and releasing isPaused() only after all matching/defered Resumes() are
called as well.

TODO/NOTE: as with many semaphore implementations, it might be reasonable
to panic() if l.paused ever becomes negative.
 2015-09-11 18:28:06 +02:00
Shawn Cook 66fd8fb2a0 Rename EnableTagOverride and update formatting 2015-09-11 08:35:29 -07:00
Shawn Cook d7ce0b3c6b Remove debug lines 2015-09-11 08:32:59 -07:00
Shawn Cook 96785edd9a Add EnableTagDrift logic to command/agent/local.go 2015-08-18 14:03:48 -07:00
Shawn Cook 6a835939b8 EnableTagDrift in NodeService struct 2015-08-18 10:34:55 -07:00
Ryan Uber 739d1fdf03 Merge pull request #891 from hashicorp/f-token 
ACL tokens for service/check registration
 2015-05-05 22:17:31 -07:00
Ryan Uber 2b62f2f172 agent: use an additional parameter for passing tokens 2015-05-04 17:48:05 -07:00
Ryan Uber 35f5a65fb7 agent: more tests 2015-04-28 13:06:02 -07:00
Ryan Uber 442933650e agent: safer read methods for tokens 2015-04-28 11:53:53 -07:00
Ryan Uber 1264f7edf3 agent: fix deadlock reading tokens from state 2015-04-27 22:26:03 -07:00
Ryan Uber bebb5d9641 agent: add service/check token methods to reduce invasiveness 2015-04-27 22:01:01 -07:00
Ryan Uber bfb27d18cd agent: initial pass threading through tokens for services/checks 2015-04-27 18:33:46 -07:00
artushin cc07734d6e remove config 2015-04-24 09:51:40 -05:00
artushin 7b4720a957 use existing randomStagger 2015-04-23 17:08:17 -05:00
artushin 8decf5d394 adding check_update_stagger 2015-04-23 16:27:42 -05:00
Ryan Uber 60a6da213f agent: handle nil node services in anti-entropy 2015-04-10 11:15:31 -07:00
Ryan Uber 7e170b047e agent: fix anti-entropy check sync 2015-04-09 10:40:05 -07:00
Ryan Uber a60f4adf95 agent: anti-entropy sync services/checks if they don't exist in the catalog 2015-04-08 12:21:01 -07:00
foostan 2df98c1824 Validation ServiceID/CheckID when deleting in deleteService() in local.go 2015-01-27 18:11:57 +09:00
Ryan Uber 46d5dcfc17 agent: comments for new anti-entropy functionality 2015-01-20 21:48:46 -08:00
Ryan Uber a4039aaa4d agent: simplify anti-entropy of services with multiple checks, add tests 2015-01-20 21:48:46 -08:00
Ryan Uber 0c31e5851c agent: only send service with check sync if it is out of sync 2015-01-20 21:48:46 -08:00
Ryan Uber 949ddefbc8 agent: refactor syncChecks 2015-01-20 21:48:46 -08:00
Ryan Uber 674be58e55 agent: support multiple checks per service 2015-01-20 21:48:42 -08:00
Veres Lajos 3b1068387a typofixes - https://github.com/vlajos/misspell_fixer 2014-12-04 23:25:06 +00:00
Armon Dadgar 5887242db2 agent: Handle service ACLs when doing anti-entropy 2014-12-01 11:43:01 -08:00
Ryan Uber cfca160cd5 formatting 2014-10-15 14:56:15 -07:00
Ryan Uber aa6ffc90f0 agent: remove special case of consul service, adjust tests 2014-10-15 14:52:00 -07:00