1.1-1.2 搭建ES集群 ★★★

考点

• 在满足约束条件下部署和启动ES集群
• 在满族约束条件下配置节点

启动参数

• ./bin/elasticsearch -d -p pid
• 其他参数都可以通过yml文件配置

配置文件说明

# Use a descriptive name for your cluster:
#
cluster.name: application
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node:
#
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):
#
#path.data: /path/to/data
#
# Path to log files:
#
#path.logs: /path/to/logs
#
node.master: true
node.data: false
node.ingest: true
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
#bootstrap.memory_lock: true
#
# 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.
#
# Elasticsearch performs poorly when the system is swapping the memory.
#
# ---------------------------------- Network -----------------------------------
#
# Set the bind address to a specific IP (IPv4 or IPv6):
#
network.host: 192.168.1.100
#
# Set a custom port for HTTP:
#
http.port: 9200

transport.tcp.port: 9300
#
# For more information, consult the network module documentation.
#
# --------------------------------- Discovery ----------------------------------
#
# Pass an initial list of hosts to perform discovery when new node is started:
# The default list of hosts is ["127.0.0.1", "[::1]"]
#
discovery.seed_hosts: ["192.168.1.100:9300"]
#
# Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):
#
cluster.initial_master_nodes: ["node-1"]
#
# For more information, consult the zen discovery module documentation.
#
# ---------------------------------- Gateway -----------------------------------
#
# Block initial recovery after a full cluster restart until N nodes are started:
#
#gateway.recover_after_nodes: 3
#
# For more information, consult the gateway module documentation.
#
# ---------------------------------- Various -----------------------------------
#
# Require explicit names when deleting indices:
#
#action.destructive_requires_name: true

关键参数

• cluster.name：集群名，同一个集群名一样
• node.name：节点名，同一个集群下是惟一的
• node.attr.key: node.attr的自定义键值对，定义节点属性，例如冷热分离
• network.host：绑定的ip，没有什么好说的
• discovery.seed_hosts：内部通信的种子节点，端口是9300
• cluster.initial_master_nodes: 候选的主节点