[GitHub] nickva commented on a change in pull request #721: Save migrated replicator checkpoint documents immediately

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

nickva commented on a change in pull request #721: Save migrated replicator checkpoint documents immediately
URL: https://github.com/apache/couchdb/pull/721#discussion_r130390772
 
 

 ##########
 File path: src/couch_replicator/src/couch_replicator_scheduler_job.erl
 ##########
 @@ -632,11 +632,30 @@ fold_replication_logs([Db | Rest] = Dbs, Vsn, LogId, NewId, Rep, Acc) ->
             Rest, ?REP_ID_VERSION, NewId, NewId, Rep, [Doc | Acc]);
     {ok, Doc} ->
         MigratedLog = #doc{id = NewId, body = Doc#doc.body},
+        maybe_save_migrated_log(Rep, Db, MigratedLog, Doc#doc.id),
         fold_replication_logs(
             Rest, ?REP_ID_VERSION, NewId, NewId, Rep, [MigratedLog | Acc])
     end.
 
 
+maybe_save_migrated_log(Rep, Db, #doc{} = Doc, OldId) ->
+    case get_value(use_checkpoints, Rep#rep.options, true) of
+        true ->
+            DbName = httpdb_strip_creds(Db),
+            try
+                update_checkpoint(Db, Doc),
+                OkMsg = "Migrated replication checkpoint. Db:~p ~p -> ~p",
+                couch_log:notice(OkMsg,  [DbName, OldId, Doc#doc.id])
+            catch
 
 Review comment:
   Agreed. Good point. Will let it crash here.
 
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