Removing a node

Elastic Stack Elasticsearch
1

Attempting to remove a node from a 5.6 cluster and did:

# cat /tmp/rmnode
{
  "transient" :{
      "cluster.routing.allocation.exclude._ip" : "10.3.3.12"
   }
}
# curl -s -XPUT 10.3.3.12:9200/_cluster/settings -H 'Content-Type: application/json' -d @/tmp/rmnode | jq .; echo
{
  "acknowledged": true,
  "persistent": {},
  "transient": {
    "cluster": {
      "routing": {
       "allocation": {
          "exclude": {
            "_ip": "10.3.3.12"
          }
        }
      }
    }
  }
}

reallocation also started but it now seems to have stop and still have 15 shards on node:

# curl -s -XGET 10.3.3.12:9200/_cluster/health?pretty |  jq .
{
  "cluster_name": "mx9es",
  "status": "green",
  "timed_out": false,
  "number_of_nodes": 5,
  "number_of_data_nodes": 4,
  "active_primary_shards": 140,
  "active_shards": 280,
  "relocating_shards": 0,
  "initializing_shards": 0,
  "unassigned_shards": 0,
  "delayed_unassigned_shards": 0,
  "number_of_pending_tasks": 0,
  "number_of_in_flight_fetch": 0,
  "task_max_waiting_in_queue_millis": 0,
  "active_shards_percent_as_number": 100
}

# curl -s -XGET '10.3.3.12:9200/_cat/allocation?v'
shards disk.indices disk.used disk.avail disk.total disk.percent host         ip           node
    88      241.8gb   242.6gb    202.6gb    445.2gb           54 10.3.3.11    10.3.3.11    cbdB
    15       38.3gb      39gb    406.2gb    445.2gb            8 10.3.3.12    10.3.3.12    cbdC
    89      249.2gb   250.2gb    634.2gb    884.4gb           28 10.3.3.13    10.3.3.13    cbdD
    88        272gb   273.2gb    175.8gb    449.1gb           60 10.3.3.10    10.3.3.10 cbdA

How to get the last 15 shards to move elsewhere?

2

Patched all nodes to latest 5.6.10 and restarted them one by one seemed to finish evacuating the last shards :slight_smile:

Now I can reploy removed node...

3

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