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causal delivery of deltas, #22188

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* keep track of delta interval versions and skip deltas
  that are not consequtive, i.e. when some delta message was lost
* send the delta versions in the full state gossip to sync up the
  expected versions after dropped deltas
* implementation of deltas for ORSet
* refactoring of the delta types to allow for different type for the
  delta and the full state
* extensive tests
* mima filter
* performance optimizations
* simple pruning of deltas
* Java API
* update documentation
* KeyId type alias
* Use InternalApi annotation
This commit is contained in:
Patrik Nordwall 2017-02-07 11:21:56 +01:00
parent 94afbee179
commit b700b840d1
41 changed files with 5010 additions and 1950 deletions
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13
akka-distributed-data/src/test/scala/akka/cluster/ddata/GCounterSpec.scala
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@ -30,9 +30,12 @@ class GCounterSpec extends WordSpec with Matchers {
c6.state(node1) should be(2)
c6.state(node2) should be(3)
c2.delta.state(node1) should be(1)
c3.delta.state(node1) should be(2)
c6.delta.state(node2) should be(3)
c2.delta.get.state(node1) should be(1)
c1.mergeDelta(c2.delta.get) should be(c2)
c3.delta.get.state(node1) should be(2)
c2.mergeDelta(c3.delta.get) should be(c3)
c6.delta.get.state(node2) should be(3)
c5.mergeDelta(c6.delta.get) should be(c6)
}
"be able to increment each node's record by arbitrary delta" in {
@ -95,13 +98,13 @@ class GCounterSpec extends WordSpec with Matchers {
merged1.state(node1) should be(7)
merged1.state(node2) should be(10)
merged1.value should be(17)
merged1.delta should be(GCounter.empty)
merged1.delta should ===(None)
val merged2 = c26 merge c16
merged2.state(node1) should be(7)
merged2.state(node2) should be(10)
merged2.value should be(17)
merged2.delta should be(GCounter.empty)
merged2.delta should ===(None)
}
"be able to have its history correctly merged with another GCounter 2" in {