Healthy cluster node got removed and added back to the cluster

enterprise-5.5.0: Pulling from couchbase/server

Digest: sha256:5228ded10c8fca39e8cea48cd845130d97b3770dc50f336b4214dcb165faaeda

Status: Image is up to date for couchbase/server:enterprise-5.5.0

[rebalance:info,2018-08-07T05:09:15.706Z,ns_1@test-couchbase-lkds5-0000.test-couchbase-lkds5.default.svc:service_rebalancer-index-worker<0.7724.1>:service_rebalancer:rebalance:110]Rebalancing service index with id <<"8410f3574ede98d83e22b0bb9323aac7">>.

KeepNodes: ['ns_1@test-couchbase-lkds5-0000.test-couchbase-lkds5.default.svc',

            'ns_1@test-couchbase-lkds5-0001.test-couchbase-lkds5.default.svc']

EjectNodes: []

DeltaNodes: []

[ns_server:info,2018-08-07T05:09:15.763Z,ns_1@test-couchbase-lkds5-0000.test-couchbase-lkds5.default.svc:mb_master<0.750.0>:mb_master:master:374]Got master heartbeat from 'ns_1@test-couchbase-lkds5-0002.test-couchbase-lkds5.default.svc' when I'm master

[ns_server:warn,2018-08-07T05:09:15.765Z,ns_1@test-couchbase-lkds5-0000.test-couchbase-lkds5.default.svc:<0.3701.0>:leader_lease_acquire_worker:handle_lease_already_acquired:232]Failed to acquire lease from 'ns_1@test-couchbase-lkds5-0002.test-couchbase-lkds5.default.svc' because its already taken by {'ns_1@test-couchbase-lkds5-0002.test-couchbase-lkds5.default.svc',

                                                                                                                             <<"466d18dbf6e8f6a64e18be420f2d76a2">>} (valid for 14674ms)

[stats:warn,2018-08-07T05:09:15.767Z,ns_1@test-couchbase-lkds5-0000.test-couchbase-lkds5.default.svc:query_stats_collector<0.440.0>:base_stats_collector:latest_tick:69](Collector: query_stats_collector) Dropped 1 ticks

[stats:warn,2018-08-07T05:09:15.769Z,ns_1@test-couchbase-lkds5-0000.test-couchbase-lkds5.default.svc:<0.4895.0>:base_stats_collector:latest_tick:69](Collector: goxdcr_stats_collector) Dropped 1 ticks

[stats:warn,2018-08-07T05:09:15.771Z,ns_1@test-couchbase-lkds5-0000.test-couchbase-lkds5.default.svc:service_stats_collector-index<0.887.0>:base_stats_collector:latest_tick:69](Collector: service_stats_collector) Dropped 1 ticks

[stats:warn,2018-08-07T05:09:15.771Z,ns_1@test-couchbase-lkds5-0000.test-couchbase-lkds5.default.svc:system_stats_collector<0.427.0>:base_stats_collector:latest_tick:69](Collector: system_stats_collector) Dropped 1 ticks

[stats:warn,2018-08-07T05:09:15.775Z,ns_1@test-couchbase-lkds5-0000.test-couchbase-lkds5.default.svc:<0.445.0>:base_stats_collector:latest_tick:69](Collector: global_stats_collector) Dropped 1 ticks

[stats:warn,2018-08-07T05:09:15.794Z,ns_1@test-couchbase-lkds5-0000.test-couchbase-lkds5.default.svc:<0.4889.0>:base_stats_collector:latest_tick:69](Collector: stats_collector) Dropped 1 ticks

[user:info,2018-08-07T05:09:15.806Z,ns_1@test-couchbase-lkds5-0000.test-couchbase-lkds5.default.svc:<0.7614.1>:ns_rebalancer:orchestrate_failover:94]Failed over ['ns_1@test-couchbase-lkds5-0002.test-couchbase-lkds5.default.svc']: ok

[ns_server:info,2018-08-07T05:09:15.809Z,ns_1@test-couchbase-lkds5-0000.test-couchbase-lkds5.default.svc:leader_quorum_nodes_manager<0.755.0>:leader_quorum_nodes_manager:handle_set_quorum_nodes:136]Updating quorum nodes.

Old quorum nodes: ['ns_1@test-couchbase-lkds5-0000.test-couchbase-lkds5.default.svc',

                   'ns_1@test-couchbase-lkds5-0001.test-couchbase-lkds5.default.svc',

                   'ns_1@test-couchbase-lkds5-0002.test-couchbase-lkds5.default.svc']

New quorum nodes: ['ns_1@test-couchbase-lkds5-0000.test-couchbase-lkds5.default.svc',

                   'ns_1@test-couchbase-lkds5-0001.test-couchbase-lkds5.default.svc']

[user:info,2018-08-07T05:09:15.935Z,ns_1@test-couchbase-lkds5-0000.test-couchbase-lkds5.default.svc:<0.7614.1>:ns_rebalancer:deactivate_nodes:112]Deactivating failed over nodes ['ns_1@test-couchbase-lkds5-0002.test-couchbase-lkds5.default.svc']