…sion()

The AwsEc2UnicastHostsProvider creates DiscoveryNodes that are used as an initial seed for unicast based discovery. At the moment it uses Version.CURRENT (see [1]) for those DiscoveryNode object, which confuses the backwards compatibility layer to think this nodes are of the latest version. This causes new nodes to fail to join old nodes as the ping serialization goes wrong. Instead we should use version.minimumCompatibilityVersion(). See [2]

[1] https://github.com/elasticsearch/elasticsearch-cloud-aws/blob/es-1.x/src/main/java/org/elasticsearch/discovery/ec2/AwsEc2UnicastHostsProvider.java#L165
[2] https://github.com/elasticsearch/elasticsearch/blob/master/src/main/java/org/elasticsearch/discovery/zen/ping/unicast/UnicastZenPing.java#L130

Ps. this was reported on the mailing list. See: https://groups.google.com/forum/#!msg/elasticsearch/8pUwFld88tI/7jRuG6hqtbAJ

Closes #143.

Update Coordination.md

138 changes missed

With this commit we change the annotation mapping to use the new field
`race-timestamp` instead of the previous field `trial-timestamp` so it
matches documents in `rally-results-*` again. We also remove any
incompatibilies for newer versions of Elasticsearch (`_all` field,
document type is `_doc` now).

Relates elastic#128
Relates elastic#143

With this commit we remove all leftover references to trial timestamp
and replace it with the new name race timestamp.

Relates elastic#128
Relates elastic#143
Relates elastic#144