获取当前的所有配置

curl -XPUT ‘http://localhost:9200/_all/_settings‘

{"debitlist":{"settings":{"index":{"creation_date":"1485160809262","number_of_shards":"1","number_of_replicas":"0","version":{"created":"1060299"},"uuid":"f5_trQOERqWoHTDqdbMTxw"}}}

会返回所有的索引，创建日期、主分片数量、从分片数量等信息

获取文档数量

curl -XPUT ‘http://localhost:9200/_count?pretty‘

_count?pretty 可以简写为_count

查看 cluster health

_cluster/health

curl -XPUT ‘http://localhost:9200/_count/health‘

官方关于elasticsearch 配置的说明

# These settings directly affect the performance of index and search operations

# in your cluster. Assuming you have enough machines to hold shards and

# replicas, the rule of thumb is:

#

# 1. Having more *shards* enhances the _indexing_ performance and allows to

#    _distribute_ a big index across machines.

# 2. Having more *replicas* enhances the _search_ performance and improves the

#    cluster _availability_.

#

# The "number_of_shards" is a one-time setting for an index.

#

# The "number_of_replicas" can be increased or decreased anytime,

# by using the Index Update Settings API.

#

# Elasticsearch takes care about load balancing, relocating, gathering the

# results from nodes, etc. Experiment with different settings to fine-tune

# your setup.

# Use the Index Status API (<http://localhost:9200/A/_status>) to inspect

# the index status.

本文出自 “波波” 博客，请务必保留此出处http://chyou.blog.51cto.com/5503396/1895264

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