Boaz Leskes 5fb0f9a88f Add Sequence Numbers and enforce Primary Terms ...

Adds a counter to each write operation on a shard. This sequence numbers is indexed into lucene using doc values, for now (we will probably require indexing to support range searchers in the future).

On top of this, primary term semantics are enforced and shards will refuse write operation coming from an older primary.

Other notes:
- The add SequenceServiceNumber is just a skeleton and will be replaced with much heavier one, once we have all the building blocks (i.e., checkpoints).
- I completely ignored recovery - for this we will need checkpoints as well.
- A new based class is introduced for all single doc write operations. This is handy to unify common logic (like toXContent).
- For now, we don't use seq# as versioning. We could in the future.

Relates to #10708
Closes #14651

2015-11-19 15:34:00 +01:00

..

licenses

no_deps.txt should be in the licenses/ directory in plugins

2015-08-09 20:16:11 +02:00

src

Add Sequence Numbers and enforce Primary Terms

2015-11-19 15:34:00 +01:00

build.gradle

Switch build system to Gradle

2015-10-29 11:40:19 -07:00