Add support for second durability chain

• Type: Improvement
• Resolution: Done
• Priority: Critical
• Fix Version/s: 6.5.0
• Affects Version/s: 6.5.0
• Component/s: couchbase-bucket
• Labels:

  • mad-hatter-committed

For Gerrit Dashboard: MB-33959
#	Subject	Branch	Project	Status	CR	V
108443,14	MB-33959: Extract common chain creation/validation into new functions	master	kv_engine	Status: MERGED	+2	+1
108448,13	MB-33959: Read second chain json into ADM::state::secondChain	master	kv_engine	Status: MERGED	+2	+1
108451,4	MB-33959: Report stats for the secondChain in ADM	master	kv_engine	Status: ABANDONED	-1	-1
108460,12	MB-33959: Refactor SyncWrite for a second replicationChain	master	kv_engine	Status: MERGED	+2	+1
108505,11	MB-33959: Add secondChain to SyncWrite	master	kv_engine	Status: MERGED	+2	+1
108506,8	MB-33959: Do not assume that nodes exist in the ADM::State::firstChain	master	kv_engine	Status: ABANDONED	-1	+1
108507,13	MB-33959: Add replica tracking for ADM::State::secondChain	master	kv_engine	Status: MERGED	+2	+1
108508,4	MB-33959: Add replica tracking for ADM::State::secondChain	master	kv_engine	Status: ABANDONED	0	0
108587,4	MB-33959: Refactor seqnoAck tests for secondChain	master	kv_engine	Status: MERGED	+2	+1