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Author SHA1 Message Date
Sean Chittenden ec77a1869e
Test for errors 2016-06-16 14:43:46 -07:00
Sean Chittenden 31313b68cf
Don't assign to an atomic w/o using atomic setter func 2016-06-16 14:43:46 -07:00
Sean Chittenden af55b74114 Merge pull request #1276 from hashicorp/f-consul-server-autojoin 
Teach Nomad servers how to fall back to Consul.
 2016-06-16 14:40:45 -07:00
Sean Chittenden 7c24487850
Fix up various error handling 2016-06-16 14:40:09 -07:00
Sean Chittenden 71cd9984ae
Immediately query Consul upon initialization if we have no peers. 
Also don't attempt to join the Server with itself.
 2016-06-16 14:27:10 -07:00
Sean Chittenden 65319252b9
Rework server_auto_join to use a timer instead of the peer count. 
It is perfectly viable for an admin to downsize a Nomad Server cluster
down to 1, 2, or `num % 2 == 0` (however ill-advised such activities
may be).  And instead of using `bootstrap_expect`, use a timeout-based
strategy.  If the `bootstrapFn` hasn't observed a leader in 15s it will
fall back to Consul and will poll every ~60s until it sees a leader.
 2016-06-16 12:14:03 -07:00
Sean Chittenden b0fecbefc1
Define BootstrapExepct as an int32 so it can be manipulated atomically. 2016-06-16 12:00:15 -07:00
Alex Dadgar ea5d11e628 remove consul reference 2016-06-15 17:23:02 -07:00
Alex Dadgar bf14fd355f plan displays launch time of periodic jobs 2016-06-15 13:34:45 -07:00
Sean Chittenden 14f9d2a947
Use the config's log output 2016-06-15 12:40:51 -07:00
Sean Chittenden 5b0def194a
Namespace the log messages 2016-06-15 12:40:51 -07:00
Sean Chittenden bffc82d668
Do not consider the number of Serf members when considering falling back to Consul. 2016-06-15 12:40:51 -07:00
Sean Chittenden 324af8d7f1
Guard the auto-join functionality behind its consul.server_auto_join tunable 2016-06-15 12:40:51 -07:00
Sean Chittenden 5e0ced2ae7
Shuffle all datacenters vs only the nearest N datacenters. 
Per discussion, we want to be aggressive about fanning out vs possibly
fixating on only local DCs.  With RPC forwarding in place, a random walk
may be less optimal from a network latency perspective, but it is guaranteed
to eventually result in a converged state because all DCs are candidates
during the bootstrapping process.
 2016-06-15 12:40:51 -07:00
Sean Chittenden 2123460cf0
Bump various Consul search limits 
Client: Search limit increased from 4 random DCs to 8 random DCs, plus nearest.
Server: Search factor increased from 3 to 5 times the bootstrap_expect.

This should allow for faster convergence in large environments (e.g.
sub-5min for 10K Consul DCs).
 2016-06-15 12:40:51 -07:00
Sean Chittenden e8d1264dbc
Short-circuit the bootstrapFn if we have a leader 2016-06-15 12:40:51 -07:00
Sean Chittenden f05514335b
Teach Nomad servers how to fall back to Consul. 2016-06-15 12:40:51 -07:00
Alex Dadgar aea21affdb Document consul configuration 2016-06-14 15:21:57 -07:00
Sean Chittenden 6e22b680ce
Disambiguate auto_join from auto_register, rename reg to auto_advertise. 
Provide an option that describes the value to the user vs the
operation performed by the software.  Momentarily introducing
`auto_join`
 2016-06-14 12:11:38 -07:00
Sean Chittenden 4f14d51013
Fix up validation and allow existing unset timeouts to continue to be unset 2016-06-13 18:55:15 -07:00
Sean Chittenden c3a3fdc230
Upon further review, the Timeout needs to be validate for more than script checks. 
This value is used for Consul HTTP and TCP checks.
 2016-06-13 18:28:27 -07:00
Sean Chittenden baac19cad6
Remove diff check for ServiceID, may it R.I.P. 2016-06-13 18:22:53 -07:00
Sean Chittenden 79c675cf72
Guard against an interval and timeout being less than 1s 2016-06-13 18:19:40 -07:00
Sean Chittenden af8db7ec18
Don't export ServiceCheck validate 2016-06-13 18:17:43 -07:00
Sean Chittenden 08c88102a7
There is no "docker" check type 2016-06-13 18:15:07 -07:00
Alex Dadgar 8bbf4a55e5 Fix IDs and domain scoping 2016-06-13 16:30:58 -07:00
Alex Dadgar 8e231fa382 Rename ConsulService back to Service 2016-06-12 16:36:49 -07:00
Diptanu Choudhury 3024c080e8 Removing artifact check for java and qemu drivers 2016-06-12 12:57:35 +02:00
Alex Dadgar 480a281031 Merge pull request #1243 from hashicorp/f-run-modify-index 
Add check-index flag to nomad run
 2016-06-11 16:12:53 -07:00
Sean Chittenden 2f036231e5 Merge pull request #1201 from hashicorp/f-dyn-server-list 
Dynamic Server Lists/Client Bootstrapping via consul.
 2016-06-11 18:58:25 -04:00
Alex Dadgar 59b0a7b3f6 Merge pull request #1256 from hashicorp/b-node-gc 
Improve partial garbage collection of allocations
 2016-06-11 15:41:00 -07:00
Sean Chittenden bbd8dfa798
goling(1) compliance pass (e.g. Rpc* -> RPC) 2016-06-10 23:38:28 -04:00
Alex Dadgar 98bf249625 Partial GC allocations 2016-06-10 18:32:37 -07:00
Alex Dadgar 7ccc7d20a0 test 2016-06-10 15:48:59 -07:00
Alex Dadgar b064b392fc Only unblock if missed class was added after eval snapshot index 2016-06-10 15:24:06 -07:00
Sean Chittenden 948663c89a
Fix another unit test not expecting ServiceID 2016-06-10 16:50:35 -04:00
Sean Chittenden d99467ef5e
Always create a consul.Syncer. Use a default Consul Config if necessary. 2016-06-10 15:55:27 -04:00
Sean Chittenden 3d64daafd9
Fold RaftPeers() into its only call site now 2016-06-10 15:54:39 -04:00
Sean Chittenden 0ba1da9c9c
Always pass in a snapshot before calling constructNodeServerInfoResponse() 2016-06-10 15:54:39 -04:00
Sean Chittenden 1df6fc253f
Rename updateNodeUpdateResponse to constructNodeServerInfoResponse 2016-06-10 15:54:39 -04:00
Sean Chittenden 077203fe93
Update the structure of ConsulService to match reality. 
ConsulService is the configuration for a Consul Service
 2016-06-10 15:54:39 -04:00
Sean Chittenden 197feae679
Sync services with Consul by comparing the AgentServiceReg w/ ConsulService 
The source of truth is the local Nomad Agent.  Any services not local that
have a matching prefix are removed.  Changed services are re-registered
and missing services are re-added.
 2016-06-10 15:54:39 -04:00
Sean Chittenden 9a223936bb
Generate and sync Consul ServiceIDs consistently 2016-06-10 15:54:39 -04:00
Sean Chittenden 95c9d1a63e
Per-comment, remove structs.Allocation's Services attribute. 
Nuke PopulateServiceIDs() now that it's also no longer needed.
 2016-06-10 15:54:39 -04:00
Sean Chittenden 7956eb0c80
Rename structs.Task's Service attribute to ConsulService 2016-06-10 15:54:39 -04:00
Sean Chittenden fda03c5c9e
Change the signature of the PeriodicCallback to return an error 
I *KNEW* I should have done this when I wrote it, but didn't want to
go back and audit the handlers to include the appropriate return
handling, but now that the code is taking shape, make this change.
 2016-06-10 15:54:39 -04:00
Sean Chittenden 4973ec32bb
Rename structs.Services to structs.ConsulServices 2016-06-10 15:54:39 -04:00
Sean Chittenden 060300007e
Use a monotonically incrementing number to create unique node names. 
Also remove the space from the "name" of the node
 2016-06-10 15:50:11 -04:00
Sean Chittenden 1ec7d6c266
Push down the server list even on node registration and evaluation 
Be mindful of the cost of taking a snapshot from the statestore and
reuse the snapshot if one has already been taken.
 2016-06-10 15:50:11 -04:00
Sean Chittenden bff57a0dce
Reconcile, clean up, and centralize API version numbers (major and minor). 
Reduce future confusion by introducing a minor version that is gossiped out
via the `mvn` Serf tag (Minor Version Number, `vsn` is already being used for
to communicate `Major Version Number`).

Background: hashicorp/consul/issues/1346#issuecomment-151663152
 2016-06-10 15:50:11 -04:00