[GitHub] nickva opened a new pull request #689: Replications can reuse http-based endpoints after upgrading to https

[gi...@git.apache.org]

nickva opened a new pull request #689:  Replications can reuse http-based endpoints after upgrading to https
URL: https://github.com/apache/couchdb/pull/689
 
 
   Since endpoint URI schema is part of the replication ID generation,
   upgrading from http to an https-based service meant losing all the old
   replication checkpoints.
   
   Allow re-using those checkpoints by introducing an intermediate
   replication ID version. If the current replication checkpoint is not
   found, then re-calculate replication IDs of https:// endpoints to make
   them look like http:// endpoints, and try finding those checkpoints.
   
   This version is called "intermediate" because it doesn't change the
   current default replication id calculation algorithm. Conceptually it
   would fit between 3 and 2, but since version numbers are integers then
   3 was bumped to 4 and this algorithm is now number 3.
   
   Issue #688
   
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   ## Overview
   
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