Elastic考试大纲（一）

Installation and Configuration

• Deploy and start an Elasticsearch cluster that satisfies a given set of requirements
• Configure the nodes of a cluster to satisfy a given set of requirements
• Secure a cluster using Elasticsearch Security
• Define role-based access control using Elasticsearch Security

理解

• 总共列了4个考点，把1和2放在一起，3和4放在一起
• 部署启动集群肯定和节点属性设置密切相关
• 集群的安全性，必然要和RBAC关联起来

策略

• 关于部署配置集群这一块的，我打算首先从yml默认的配置文件入手
• 关于安全这一块的，涉及三个方面，密码和RBAC，数据完整性和拦截，以及审核日志

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