Galera wsrep provider

Release Notes: This release fixed possible data inconsistency due to indeterministic certification index purge and exceptions when using high evs.send_window and evs.user_send_window settings. It also sports some performance and memory optimizations for huge writesets.

Release Notes: This release contains important bugfixes, new features, and performance improvements. Fixed: causal reads guarantee violation at cluster partitioning, exclusive keys didn't produce dependency on shared keys, a race condition in the desync method (could break RSU), IST not working across different EC2 accessibility zones (and similar), and causal reads timeout configuration was ignored. Added: an wsrep_incoming_addresses status variable, the ability to specify several node addresses in a gcomm:// URL. Significant speedups and memory footprint reduction on ranged queries.

Release Notes: This release fixes broken IST between 32-bit and 64-bt architectures, a possible cluster crash on arbitrator reconnect, and a number of other minor issues. It adds support for "shared" keys, a gcs.sync_donor boolean parameter to keep state donor temporally synced with the cluster (useful for non-blocking state transfers like xtrabackup and IST), and support for Solaris 11 (x86 only).

Release Notes: This GA release fixes issues found in the beta and adds a start/stop service script for the Galera arbitrator.

Release Notes: This is a new major feature release featuring incremental state transfers (replaying of missing transactions to catch up with the cluster). This is a beta preview.