ElasticSearch學習(5)-配置文件詳解

1.配置文件詳解 elasticsearch.yml文件：

# ======================== Elasticsearch Configuration =========================
#
# NOTE: Elasticsearch comes with reasonable defaults for most settings.
#       Before you set out to tweak and tune the configuration, make sure you
#       understand what are you trying to accomplish and the consequences.
#
# The primary way of configuring a node is via this file. This template lists
# the most important settings you may want to configure for a production cluster.
#
# Please consult the documentation for further information on configuration options:
# https://www.elastic.co/guide/en/elasticsearch/reference/index.html
#
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
------集羣的名稱(集羣中該節點必須徹底一致)------
cluster.name: my-application
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node:
------節點名稱（集羣中節點名稱必須惟一）----
node.name: node-1
#
# Add custom attributes to the node:
#
#node.attr.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comma):
#
------ES的數據存儲目錄------
path.data: /path/to/data
#
# Path to log files:
#

-----ES的日誌存儲目錄-------
path.logs: /path/to/logs
#
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
-----鎖定物理內存地址,防止ElasticSearch內存被交換出去，避免使用swap交換分區-----
bootstrap.memory_lock: true



-------確保ES_HEAP_SIZE參數爲系統內存通常左右-------
# Make sure that the heap size is set to about half the memory available
# on the system and that the owner of the process is allowed to use this
# limit.
------當系統進行內存交換的時候，ES的性能不好------
# Elasticsearch performs poorly when the system is swapping the memory.
#
# ---------------------------------- Network -----------------------------------
#
# Set the bind address to a specific IP (IPv4 or IPv6):
#
------ES的ip綁定------
network.host: 192.168.15.38
#
# Set a custom port for HTTP:
#
----ES所佔用的端口-----
http.port: 9200
#
# For more information, consult the network module documentation.
#
# --------------------------------- Discovery ----------------------------------
#
# Pass an initial list of hosts to perform discovery when new node is started:

------組建集羣時的節點列表------
["192.168.1.10","192.168.1.11","192.168.1.12"]

# The default list of hosts is ["127.0.0.1", "[::1]"]


 --------集羣中主節點列表-------
discovery.zen.ping.unicast.hosts: ["host1", "host2"]
#
# Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):
#

-----經過該參數來防止集羣腦裂現象(節點總數/2)+1-------(節點總數/2)+1
discovery.zen.minimum_master_nodes: 3
#
# For more information, consult the zen discovery module documentation.
#
# ---------------------------------- Gateway -----------------------------------
#
# Block initial recovery after a full cluster restart until N nodes are started:
#
-----一個集羣中N個節點啓動後才能進行數據恢復處理-------
gateway.recover_after_nodes: 3
#
# For more information, consult the gateway module documentation.
#
# ---------------------------------- Various -----------------------------------

# 在一臺服務器上禁止啓動多個es服務
# Disable starting multiple nodes on a single system:
#
# node.max_local_storage_nodes: 1

#
# Require explicit names when deleting indices:
#
#action.destructive_requires_name: true
#

-----head插件所須要的配置跨域----
http.cors.enabled: true
http.cors.allow-origin: "*"