Question

我有一个包含3个节点的Elasticsearch群集。每个节点都可以成为主节点和数据节点。我的Elasticsearch设置为：

index.number_of_shards: 8
index.number_of_replicas: 2
gateway.recover_after_nodes: 2
gateway.recover_after_time: 5m
gateway.expected_nodes: 3
discovery.zen.minimum_master_nodes: 2
discovery.zen.ping.multicast.enabled: false
discovery.zen.ping.unicast.hosts: ["host1", "host2:9200","host3:9200"]

My Cluster is up now and cluster health is green. But Shard allocation is like

Node1 - 0,1,2,3,4,6 where 6 is primary and other are replicas

Node2 - 5,6,7 all replicas

Node3 - 0,1,2,3,4,5,7 all primary

此结构仅显示节点上每个分片的1个副本副本。但是我在设置中提到了2个副本，然后它应该显示每个分片的2个副本。

我是否理解错误或设置中缺少某些内容。

Answer 1

index.number_of_replicas from elasticsearch.yml is for new indices. The ones you already have need to be adjusted manually: PUT /_all/_settings { "index": { "number_of_replicas": 2 } }

Also, do please consider upgrading. ES is now at version 2.3.1, 0.90 is very old.

ElasticSearch集群复制

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