root@noc-node1:~# /usr/bin/mongo --host noc/noc-node1 --eval 1
MongoDB shell version v3.6.7
connecting to: mongodb://noc-node1:27017/?replicaSet=noc
2018-08-22T18:28:53.616+0700 I NETWORK  [thread1] Starting new replica set monitor for noc/noc-node1:27017
2018-08-22T18:28:53.617+0700 W NETWORK  [ReplicaSetMonitor-TaskExecutor-0] Failed to connect to 127.0.1.1:27017, in(checking socket for error after poll), reason: Connection refused
2018-08-22T18:28:53.618+0700 W NETWORK  [ReplicaSetMonitor-TaskExecutor-0] Unable to reach primary for set noc
2018-08-22T18:28:53.618+0700 I NETWORK  [ReplicaSetMonitor-TaskExecutor-0] Cannot reach any nodes for set noc. Please check network connectivity and the status of the set. This has happened for 1 checks in a row.
2018-08-22T18:28:54.119+0700 W NETWORK  [thread1] Failed to connect to 127.0.1.1:27017, in(checking socket for error after poll), reason: Connection refused
2018-08-22T18:28:54.119+0700 W NETWORK  [thread1] Unable to reach primary for set noc
2018-08-22T18:28:54.119+0700 I NETWORK  [thread1] Cannot reach any nodes for set noc. Please check network connectivity and the status of the set. This has happened for 2 checks in a row.
2018-08-22T18:28:54.619+0700 W NETWORK  [thread1] Failed to connect to 127.0.1.1:27017, in(checking socket for error after poll), reason: Connection refused
2018-08-22T18:28:54.620+0700 W NETWORK  [thread1] Unable to reach primary for set noc
2018-08-22T18:28:54.620+0700 I NETWORK  [thread1] Cannot reach any nodes for set noc. Please check network connectivity and the status of the set. This has happened for 3 checks in a row.
2018-08-22T18:28:55.121+0700 W NETWORK  [thread1] Failed to connect to 127.0.1.1:27017, in(checking socket for error after poll), reason: Connection refused
2018-08-22T18:28:55.121+0700 W NETWORK  [thread1] Unable to reach primary for set noc
2018-08-22T18:28:55.121+0700 I NETWORK  [thread1] Cannot reach any nodes for set noc. Please check network connectivity and the status of the set. This has happened for 4 checks in a row.
2018-08-22T18:28:55.622+0700 W NETWORK  [thread1] Failed to connect to 127.0.1.1:27017, in(checking socket for error after poll), reason: Connection refused
2018-08-22T18:28:55.622+0700 W NETWORK  [thread1] Unable to reach primary for set noc
2018-08-22T18:28:55.622+0700 I NETWORK  [thread1] Cannot reach any nodes for set noc. Please check network connectivity and the status of the set. This has happened for 5 checks in a row.
2018-08-22T18:28:56.123+0700 W NETWORK  [thread1] Failed to connect to 127.0.1.1:27017, in(checking socket for error after poll), reason: Connection refused
2018-08-22T18:28:56.123+0700 W NETWORK  [thread1] Unable to reach primary for set noc
2018-08-22T18:28:56.123+0700 I NETWORK  [thread1] Cannot reach any nodes for set noc. Please check network connectivity and the status of the set. This has happened for 6 checks in a row.
2018-08-22T18:28:56.624+0700 W NETWORK  [thread1] Failed to connect to 127.0.1.1:27017, in(checking socket for error after poll), reason: Connection refused
2018-08-22T18:28:56.624+0700 W NETWORK  [thread1] Unable to reach primary for set noc
2018-08-22T18:28:56.624+0700 I NETWORK  [thread1] Cannot reach any nodes for set noc. Please check network connectivity and the status of the set. This has happened for 7 checks in a row.
2018-08-22T18:28:57.125+0700 W NETWORK  [thread1] Failed to connect to 127.0.1.1:27017, in(checking socket for error after poll), reason: Connection refused
2018-08-22T18:28:57.126+0700 W NETWORK  [thread1] Unable to reach primary for set noc
2018-08-22T18:28:57.126+0700 I NETWORK  [thread1] Cannot reach any nodes for set noc. Please check network connectivity and the status of the set. This has happened for 8 checks in a row.
2018-08-22T18:28:57.626+0700 W NETWORK  [thread1] Failed to connect to 127.0.1.1:27017, in(checking socket for error after poll), reason: Connection refused
2018-08-22T18:28:57.627+0700 W NETWORK  [thread1] Unable to reach primary for set noc