Commit Graph

13 Commits

Author SHA1 Message Date
James Phillips 763d5ea8a7 Fixes nil slices from HTTP endpoints.
These would manifest in the HTTP output as Javascript nulls instead of
empty lists, so we had unintentionally changed the interface while
porting to the new state store. We added code to each HTTP endpoint to
convert nil slices to empty ones so they JSON-ify properly, and we added
tests to catch this in the future.
2015-11-14 21:05:37 -08:00
Dale Wijnand c5168e1263 Fix a bunch of typos. 2015-09-15 13:22:08 +01:00
Michael Fraenkel c00c4ebaaa Support SesionTTLMin configuration
- Allow setting SessionTTLMin
- Validate on the Server
2015-03-27 05:13:57 -07:00
Armon Dadgar 9b897d1134 consul: Ignore zero ttl on session 2014-12-12 19:17:04 -08:00
Atin Malaviya 8369b77204 Clean up code based on feedback from armon 2014-12-10 20:49:06 -05:00
Atin Malaviya c992c18ef0 Added more tests. Also added return of 404 if the session id to renew is not found 2014-12-10 10:02:23 -05:00
Atin Malaviya b623af776b Consul Session TTLs
The design of the session TTLs is based on the Google Chubby approach
(http://research.google.com/archive/chubby-osdi06.pdf). The Session
struct has an additional TTL field now. This attaches an implicit
heartbeat based failure detector. Tracking of heartbeats is done by
the current leader and not persisted via the Raft log. The implication
of this is during a leader failover, we do not retain the last
heartbeat times.

Similar to Chubby, the TTL represents a lower-bound. Consul promises
not to terminate a session before the TTL has expired, but is allowed
to extend the expiration past it. This enables us to reset the TTL on
a leader failover. The TTL is also extended when the client does a
heartbeat. Like Chubby, this means a TTL is extended on creation,
heartbeat or failover.

Additionally, because we must account for time requests are in transit
and the relative rates of clocks on the clients and servers, Consul
will take the conservative approach of internally multiplying the TTL
by 2x. This helps to compensate for network latency and clock skew
without violating the contract.

Reference: https://docs.google.com/document/d/1Y5-pahLkUaA7Kz4SBU_mehKiyt9yaaUGcBTMZR7lToY/edit?usp=sharing
2014-12-07 12:38:22 -05:00
Atin Malaviya aa0cecd04e Ephemeral Nodes for via Session behavior settings.
Added a "delete" behavior for session invalidation, in addition to
the default "release" behavior. On session invalidation, the sessions
Behavior field is checked and if it is set to "delete", all nodes owned
by the session are deleted. If it is "release", then just the locks
are released as default.
2014-11-20 11:34:45 -05:00
Armon Dadgar ee614ace35 agent: Enforce PUT for session destroy. Fixes #285. 2014-08-19 10:53:25 -07:00
Armon Dadgar 60c66ec7b5 agent: Adding support for specifying LockDelay, defaults to 15 seconds. 2014-05-20 16:25:29 -07:00
Armon Dadgar a53cb6e1dd agent: Session endpoint tests 2014-05-20 16:25:29 -07:00
Armon Dadgar eb9a51bced agent: Require PUT to SessionCreate 2014-05-20 16:25:29 -07:00
Armon Dadgar d5b1330227 agent: First pass at session endpoints 2014-05-20 16:25:29 -07:00