syncrepl retry parameter

doc/guide/admin/slapdconfig.sdf

@@ -421,6 +421,7 @@ H4: syncrepl
 >		provider=ldap[s]://<hostname>[:port]
 >		[type=refreshOnly|refreshAndPersist]
 >		[interval=dd:hh:mm:ss]
+>		[retry=[<retry interval> <# of retries>]+]
 >		[searchbase=<base DN>]
 >		[filter=<filter str>]
 >		[scope=sub|one|base]
@@ -490,6 +491,13 @@ remains persistent in the provider slapd. Further updates to the
 master replica will generate {{EX:searchResultEntry}} to the consumer slapd
 as the search responses to the persistent synchronization search.
 
+If an error occurs during replication, the consumer will attempt to reconnect
+according to the retry parameter which is a list of the <retry interval>
+and <# of retries> pairs. For example, retry="60 5 300 3" lets the consumer
+retry every 60 seconds for the first 10 times and then retry every 300 seconds
+for the next three times before stop retrying. + in <#  of retries> means
+indefinite number of retries until success.
+
 The schema checking can be enforced at the LDAP Sync consumer site
 by turning on the {{EX:schemachecking}} parameter.
 If it is turned on, every replicated entry will be checked for its