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802 Commits

Author SHA1 Message Date
James Phillips d57431e300 Gets new structs changes to compile, adds some corner case handling and extra unit tests. 2015-10-15 14:59:09 -07:00
Ryan Uber d6af59cded Merge pull request #1309 from hashicorp/f-remove-migrate 
Removes consul-migrate for 0.6
 2015-10-15 14:50:19 -07:00
Jeff Mitchell f49fc095ef Don't use http.DefaultClient 
Two of the changes are in tests; the one of consequence is in the API.
As explained in #1308 this can cause conflicts with downstream programs.

Fixes #1308.
 2015-10-15 17:49:35 -04:00
Ryan Uber de287e3efb agent: consolidates data dir checker 2015-10-15 14:21:35 -07:00
Ryan Uber 10b971df21 agent: test mdb dir protection 2015-10-15 14:15:41 -07:00
Ryan Uber d901fa6389 agent: remove migrator, refuse to start if mdb dir found 2015-10-15 14:15:08 -07:00
Michael Puncel a98d25b541 Add http method to log output 2015-10-02 18:33:06 -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
Dale Wijnand 5a28ebcaa3 Fix a bunch of typos. 2015-09-15 13:22:08 +01:00
James Phillips 2f9ebdb135 Merge pull request #1187 from sfncook/enable_tag_drift_03 
Enable tag drift 03
 2015-09-11 15:35:32 -07:00
Anthony Scalisi 10e028d599 remove various typos 2015-09-11 12:29:54 -07:00
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
Wojciech Bederski 24bc17eaa1 failing test showing that nested Pause()/Resume() release too early 
see: #1173 / https://github.com/hashicorp/consul/issues/1173
 2015-09-11 17:52:57 +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 0b3faf6e4a Merge remote-tracking branch 'hashicorp/master' into enable_tag_drift_03 2015-09-10 14:55:30 -07:00
James Phillips 27c59f7b30 Adds missing token to maint unit test. 2015-09-10 14:53:00 -07:00
Shawn Cook 35f276f25d Add test cases TestAgentAntiEntropy_EnableTagDrift 2015-09-10 14:08:16 -07:00
Ryan Uber 1908c16f53 Merge pull request #1230 from hashicorp/f-maintfix 
Respect tokens in maintenance mode
 2015-09-10 12:30:07 -07:00
Ryan Uber 039938a7e0 agent: testing node/service maintenance using tokens 2015-09-10 12:08:08 -07:00
Ryan Uber 125d7fd4ee agent: thread tokens through for maintenance mode 2015-09-10 11:43:59 -07:00
Wim 0bc4d9322e Allow AAAA queries for nodeLookup 2015-09-08 16:54:36 +02:00
Ryan Breen 446c640c17 Merge pull request #1217 from 42wim/fix-rfc2308-part3 
No NXDOMAIN when the answer is empty
 2015-09-04 10:42:38 -04:00
Armon Dadgar 5cb6ab625e Merge pull request #1214 from zendesk/fix_lock_race_2 
lock.go: fix another race condition
 2015-09-02 16:04:55 -07:00
Wim 2701bb5cc2 No NXDOMAIN when the answer is empty 2015-09-02 16:12:22 +02:00
Ryan Breen 80d26f9156 Merge pull request #1167 from railsguru/master 
Add -http-port option to change the HTTP API port
 2015-09-02 01:15:55 -04:00
Armon Dadgar 52a8a95af9 agent: Always enable the UI endpoints 2015-09-01 18:28:32 -07:00
Michael S. Fischer 43ab372a18 lock.go: fix another race condition 
The previous fix to `consul lock` (commit 6875e8d) didn't completely
eliminate the race that could occur if the lock was acquired around the
same time SIGTERM was received:  It was still possible for
Run() to spawn the process via startChild() after killChild() had
released the shared mutex.

Now, when SIGTERM is received, we acquire a mutex that prevents
spawning a new process and never release it.

We've tested this fix pretty thoroughly and believe it completely
resolves the issue.
 2015-09-01 14:27:23 -07:00
Wim 4a1dc90cba Limit the DNS responses after getting the NodeRecords 2015-09-01 23:23:05 +02:00
Ryan Breen f41b79eff2 Merge pull request #1195 from 42wim/fix-rfc2308-part2 
Return SOA/NXDOMAIN when the answer is empty
 2015-09-01 17:08:31 -04:00
Wim 369982270d Return SOA/not found when the answer is empty 2015-09-01 22:28:12 +02:00
James Phillips 26ce9d16be Merge pull request #1200 from ryotarai/lock-pass-stdin 
command/lock: Pass stdin to child process when -pass-stdin passed.
 2015-08-31 21:14:45 -07:00
Ryan Uber 11e4cfd72b agent: reload SCADA client if endpoint changes 2015-08-27 13:29:07 -07:00
Ryan Uber c468acf222 command: atlas endpoint can be passed 2015-08-27 11:11:05 -07:00
Ryan Uber 1cc2429364 agent: atlas_endpoint is configurable 2015-08-27 11:08:01 -07:00
Ryota Arai 33a6cde7dd command/lock: Pass stdin to child process when -pass-stdin passed. 2015-08-26 16:27:21 +09:00
Ryan Uber 5ad8bfbd41 agent: log a message when making a new scada connection 2015-08-25 21:03:16 -07:00
Ryan Uber 4b715a7d2c agent: don't reload scada client if there is no config change 2015-08-25 20:43:57 -07:00
Ryan Uber ed70720d55 agent: testing scada client creation in command 2015-08-25 20:22:22 -07:00
Ryan Uber 52a7206ff3 agent: test scada HTTP server creation 2015-08-25 18:51:04 -07:00
Ryan Uber eb8974160f agent: clean up scada connection manager 2015-08-25 18:27:07 -07:00
Ryan Uber 87c1e4fcd3 agent: document the scada http creation func 2015-08-25 17:19:11 -07:00
Ryan Uber 2e6ccded2c agent: scada client and HTTP server are tracked separately 2015-08-25 16:59:53 -07:00
Andy Lo-A-Foe 85321301e1 Remove duplicate code 2015-08-20 20:46:20 +02:00
Andy Lo-A-Foe 3e046d3efc Use Ports.HTTP directly 2015-08-20 20:27:20 +02:00
Andy Lo-A-Foe 4e2c3373bc Add documentation for http-port option 2015-08-20 20:19:35 +02:00
Shawn Cook ab91590bcb Update tests - NodeService init needs bool 2015-08-20 09:09:26 -07:00
Shawn Cook 96785edd9a Add EnableTagDrift logic to command/agent/local.go 2015-08-18 14:03:48 -07:00
Shawn Cook a0f8c0a2a0 Remove from command/agent/config_test.go 2015-08-18 10:42:25 -07:00