Add new setting REPLICATION_INTERVAL
This MR adds a new config option to set the REPLICATION_INTERVAL. The import option appendcache changed to overwritecache, because when running a new import an empty cache should be used.
\approve @fd
This MR adds a new config option to set the REPLICATION_INTERVAL. The import option appendcache changed to overwritecache, because when running a new import an empty cache should be used.
\approve @fd