after changing oplog size in in config and restarting mongodb (in order: node no 1 - secondary, node no 2 - secondary, node no 3 - primary)

Set name: testreplset
Majority up: yes
Member id Up cctime Last heartbeat Votes Priority State Messages optime skew
172.17.0.251:27017 0 1 3.3 mins 1 sec ago 1 1 RECOVERING error RS102 too stale to catch up 4dd6539b:81
172.17.0.252:27017 1 1 3.3 mins 1 sec ago 1 1 PRIMARY 4dd6546d:7c
172.17.0.253:27017 (me) 2 1 3.4 mins 1 1 ROLLBACK rollback 2 error findcommonpoint waiting a while before trying again 4dd65853:8

Recent replset log activity:

Fri May 20 14:15:09 [startReplSets] couldn't connect to localhost:27017: couldn't connect to server localhost:27017
14:15:09 [startReplSets] replSet STARTUP2
14:15:09 [replica set sync] replSet SECONDARY
14:15:09 [rs Manager] replSet can't see a majority, will not try to elect self
14:15:09 [ReplSetHealthPollTask] replSet info 172.17.0.252:27017 is up
14:15:09 [ReplSetHealthPollTask] replSet member 172.17.0.252:27017 PRIMARY
14:15:11 [ReplSetHealthPollTask] replSet info 172.17.0.251:27017 is up
14:15:11 [ReplSetHealthPollTask] replSet member 172.17.0.251:27017 RECOVERING
14:15:12 [replica set sync] replSet we are ahead of the primary, will try to roll back
14:15:12 [replica set sync] replSet rollback 0
14:15:12 [replica set sync] replSet ROLLBACK
14:15:12 [replica set sync] replSet rollback 1
14:15:12 [replica set sync] replSet rollback 2 FindCommonPoint
14:15:12 [replica set sync] replSet info rollback our last optime: May 20 14:02:27:8
14:15:12 [replica set sync] replSet info rollback their last optime: May 20 13:45:49:7c
14:15:12 [replica set sync] replSet info rollback diff in end of log times: 998 seconds
14:15:12 [replica set sync] replSet rollback error RS101 reached beginning of local oplog
14:15:12 [replica set sync] replSet them: 172.17.0.252:27017 scanned: 58620
14:15:12 [replica set sync] replSet theirTime: May 20 13:45:49 4dd6546d:7c
14:15:12 [replica set sync] replSet ourTime: May 20 13:57:33 4dd6572d:1dd
14:15:12 [replica set sync] replSet rollback 2 error RS101 reached beginning of local oplog [2]
14:15:25 [replica set sync] replSet we are ahead of the primary, will try to roll back
14:15:25 [replica set sync] replSet rollback 0
14:15:25 [replica set sync] replSet rollback 1
14:15:25 [replica set sync] replSet rollback 2 FindCommonPoint
14:15:25 [replica set sync] replSet rollback 2 error findcommonpoint waiting a while before trying again
14:15:39 .....
14:15:52 .....
14:16:05 .....
14:16:18 [replica set sync] replSet we are ahead of the primary, will try to roll back
14:16:18 [replica set sync] replSet rollback 0
14:16:18 [replica set sync] replSet rollback 1
14:16:18 [replica set sync] replSet rollback 2 FindCommonPoint
14:16:18 [replica set sync] replSet info rollback our last optime: May 20 14:02:27:8
14:16:18 [replica set sync] replSet info rollback their last optime: May 20 13:45:49:7c
14:16:18 [replica set sync] replSet info rollback diff in end of log times: 998 seconds
14:16:18 [replica set sync] replSet rollback error RS101 reached beginning of local oplog
14:16:18 [replica set sync] replSet them: 172.17.0.252:27017 scanned: 58620
14:16:18 [replica set sync] replSet theirTime: May 20 13:45:49 4dd6546d:7c
14:16:18 [replica set sync] replSet ourTime: May 20 13:57:33 4dd6572d:1dd
14:16:18 [replica set sync] replSet rollback 2 error RS101 reached beginning of local oplog [2]
14:16:32 [replica set sync] replSet we are ahead of the primary, will try to roll back
14:16:32 [replica set sync] replSet rollback 0
14:16:32 [replica set sync] replSet rollback 1
14:16:32 [replica set sync] replSet rollback 2 FindCommonPoint
14:16:32 [replica set sync] replSet rollback 2 error findcommonpoint waiting a while before trying again
14:16:45 .....
14:16:58 .....
14:17:11 .....
14:17:24 [replica set sync] replSet we are ahead of the primary, will try to roll back
14:17:24 [replica set sync] replSet rollback 0
14:17:24 [replica set sync] replSet rollback 1
14:17:24 [replica set sync] replSet rollback 2 FindCommonPoint
14:17:24 [replica set sync] replSet info rollback our last optime: May 20 14:02:27:8
14:17:24 [replica set sync] replSet info rollback their last optime: May 20 13:45:49:7c
14:17:24 [replica set sync] replSet info rollback diff in end of log times: 998 seconds
14:17:25 [replica set sync] replSet rollback error RS101 reached beginning of local oplog
14:17:25 [replica set sync] replSet them: 172.17.0.252:27017 scanned: 58620
14:17:25 [replica set sync] replSet theirTime: May 20 13:45:49 4dd6546d:7c
14:17:25 [replica set sync] replSet ourTime: May 20 13:57:33 4dd6572d:1dd
14:17:25 [replica set sync] replSet rollback 2 error RS101 reached beginning of local oplog [2]
14:17:38 [replica set sync] replSet we are ahead of the primary, will try to roll back
14:17:38 [replica set sync] replSet rollback 0
14:17:38 [replica set sync] replSet rollback 1
14:17:38 [replica set sync] replSet rollback 2 FindCommonPoint
14:17:38 [replica set sync] replSet rollback 2 error findcommonpoint waiting a while before trying again
14:17:51 .....
14:18:04 .....