分片过滤
- 第一步
在节点elasticsearch.yml配置中可以为节点增加自定义属性，如
# small,big,...
node.attr.size: medium
或者在启动时增加自定义属性
./bin/elasticsearch -Enode.attr.size=medium
节点自带属性
| 属性 | 说明 |
|---|---|
_name |
Match nodes by node name |
_host_ip |
Match nodes by host IP address (IP associated with hostname) |
_publish_ip |
Match nodes by publish IP address |
_ip |
Match either _host_ip or _publish_ip |
_host |
Match nodes by hostname |
_id |
Match nodes by node id |
_tier |
Match nodes by the node’s data tier role. |
- 第二步
创建或修改索引的分片过滤条件,支持require,exclude,include
PUT test/_settings
# 例1
{
"index.routing.allocation.include.size": "big,medium"
}
# 例2
{
"index.routing.allocation.require.size": "big",
"index.routing.allocation.require.rack": "rack1"
}
# 例3
{
"index.routing.allocation.include._ip": "192.168.2.*"
}