【硬刚ES】ES基础(六十六)使用 shrink与rolloverAPI有效的管理索引
作者:互联网
本文是对《【硬刚大数据之学习路线篇】从零到大数据专家的学习指南(全面升级版)》的ES部分补充。
课程demo
# 打开关闭索引
DELETE test
#查看索引是否存在
HEAD test
PUT test/_doc/1
{
"key":"value"
}
#关闭索引
POST /test/_close
#索引存在
HEAD test
# 无法查询
POST test/_count
#打开索引
POST /test/_open
POST test/_search
{
"query": {
"match_all": {}
}
}
POST test/_count
# 在一个 hot-warm-cold的集群上进行测试
GET _cat/nodes
GET _cat/nodeattrs
DELETE my_source_index
DELETE my_target_index
PUT my_source_index
{
"settings": {
"number_of_shards": 4,
"number_of_replicas": 0
}
}
PUT my_source_index/_doc/1
{
"key":"value"
}
GET _cat/shards/my_source_index
# 分片数3,会失败
POST my_source_index/_shrink/my_target_index
{
"settings": {
"index.number_of_replicas": 0,
"index.number_of_shards": 3,
"index.codec": "best_compression"
},
"aliases": {
"my_search_indices": {}
}
}
# 报错,因为没有置成 readonly
POST my_source_index/_shrink/my_target_index
{
"settings": {
"index.number_of_replicas": 0,
"index.number_of_shards": 2,
"index.codec": "best_compression"
},
"aliases": {
"my_search_indices": {}
}
}
#将 my_source_index 设置为只读
PUT /my_source_index/_settings
{
"settings": {
"index.blocks.write": true
}
}
# 报错,必须都在一个节点
POST my_source_index/_shrink/my_target_index
{
"settings": {
"index.number_of_replicas": 0,
"index.number_of_shards": 2,
"index.codec": "best_compression"
},
"aliases": {
"my_search_indices": {}
}
}
DELETE my_source_index
## 确保分片都在 hot
PUT my_source_index
{
"settings": {
"number_of_shards": 4,
"number_of_replicas": 0,
"index.routing.allocation.include.box_type":"hot"
}
}
PUT my_source_index/_doc/1
{
"key":"value"
}
GET _cat/shards/my_source_index
#设置为只读
PUT /my_source_index/_settings
{
"settings": {
"index.blocks.write": true
}
}
POST my_source_index/_shrink/my_target_index
{
"settings": {
"index.number_of_replicas": 0,
"index.number_of_shards": 2,
"index.codec": "best_compression"
},
"aliases": {
"my_search_indices": {}
}
}
GET _cat/shards/my_target_index
# My target_index状态为也只读
PUT my_target_index/_doc/1
{
"key":"value"
}
# Split Index
DELETE my_source_index
DELETE my_target_index
PUT my_source_index
{
"settings": {
"number_of_shards": 4,
"number_of_replicas": 0
}
}
PUT my_source_index/_doc/1
{
"key":"value"
}
GET _cat/shards/my_source_index
# 必须是倍数
POST my_source_index/_split/my_target
{
"settings": {
"index.number_of_shards": 10
}
}
# 必须是只读
POST my_source_index/_split/my_target
{
"settings": {
"index.number_of_shards": 8
}
}
#设置为只读
PUT /my_source_index/_settings
{
"settings": {
"index.blocks.write": true
}
}
POST my_source_index/_split/my_target_index
{
"settings": {
"index.number_of_shards": 8,
"index.number_of_replicas":0
}
}
GET _cat/shards/my_target_index
# write block
PUT my_target_index/_doc/1
{
"key":"value"
}
#Rollover API
DELETE nginx-logs*
# 不设定 is_write_true
# 名字符合命名规范
PUT /nginx-logs-000001
{
"aliases": {
"nginx_logs_write": {}
}
}
# 多次写入文档
POST nginx_logs_write/_doc
{
"log":"something"
}
POST /nginx_logs_write/_rollover
{
"conditions": {
"max_age": "1d",
"max_docs": 5,
"max_size": "5gb"
}
}
GET /nginx_logs_write/_count
# 查看 Alias信息
GET /nginx_logs_write
DELETE apache-logs*
# 设置 is_write_index
PUT apache-logs1
{
"aliases": {
"apache_logs": {
"is_write_index":true
}
}
}
POST apache_logs/_count
POST apache_logs/_doc
{
"key":"value"
}
# 需要指定 target 的名字
POST /apache_logs/_rollover/apache-logs8xxxx
{
"conditions": {
"max_age": "1d",
"max_docs": 1,
"max_size": "5gb"
}
}
# 查看 Alias信息
GET /apache_logs
标签:index,settings,硬刚,rolloverAPI,number,source,POST,my,ES 来源: https://blog.csdn.net/u013411339/article/details/120751037