# 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: # cluster.name:hr2812 # # ------------------------------------ Node ------------------------------------ # # Use a descriptive name for the node: # node.name:node-1 node.master:true # # 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 # # ----------------------------------- 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: 192.168.0.1 #network.host: 193.112.14.78 network.host:0.0.0.0 #network.publish_host: 0.0.0.0 # # Set a custom port for HTTP: # http.port:9200 # 允许跨域 http.cors.enabled:true http.cors.allow-origin:"*" # # 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.zen.ping.unicast.hosts: ["host1", "host2"] #discovery.zen.ping.unicast.hosts: ["193.112.14.78:9300"] # # Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1): # #discovery.zen.minimum_master_nodes: # # 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
################################################################ ## IMPORTANT: JVM heap size ################################################################ ## ## You should always set the min and max JVM heap ## size to the same value. For example, to set ## the heap to 4 GB, set: ## ## -Xms4g ## -Xmx4g ## ## See https://www.elastic.co/guide/en/elasticsearch/reference/current/heap-size.html ## for more information ## ################################################################
# Xms represents the initial size of total heap space # Xmx represents the maximum size of total heap space
-Xms128m -Xmx128m
################################################################ ## Expert settings ################################################################ ## ## All settings below this section are considered ## expert settings. Don't tamper with them unless ## you understand what you are doing ## ################################################################
## G1GC Configuration # NOTE: G1GC is only supported on JDK version 10 or later. # To use G1GC uncomment the lines below. # 10-:-XX:-UseConcMarkSweepGC # 10-:-XX:-UseCMSInitiatingOccupancyOnly # 10-:-XX:+UseG1GC # 10-:-XX:InitiatingHeapOccupancyPercent=75
## DNS cache policy # cache ttl in seconds for positive DNS lookups noting that this overrides the # JDK security property networkaddress.cache.ttl; set to -1 to cache forever -Des.networkaddress.cache.ttl=60 # cache ttl in seconds for negative DNS lookups noting that this overrides the # JDK security property networkaddress.cache.negative ttl; set to -1 to cache # forever -Des.networkaddress.cache.negative.ttl=10
## optimizations
# pre-touch memory pages used by the JVM during initialization -XX:+AlwaysPreTouch
## basic
# explicitly set the stack size -Xss1m
# set to headless, just in case -Djava.awt.headless=true
# ensure UTF-8 encoding by default (e.g. filenames) -Dfile.encoding=UTF-8
# use our provided JNA always versus the system one -Djna.nosys=true
# turn off a JDK optimization that throws away stack traces for common # exceptions because stack traces are important for debugging -XX:-OmitStackTraceInFastThrow
# flags to configure Netty -Dio.netty.noUnsafe=true -Dio.netty.noKeySetOptimization=true -Dio.netty.recycler.maxCapacityPerThread=0
# generate a heap dump when an allocation from the Java heap fails # heap dumps are created in the working directory of the JVM -XX:+HeapDumpOnOutOfMemoryError
# specify an alternative path for heap dumps; ensure the directory exists and # has sufficient space -XX:HeapDumpPath=data
# specify an alternative path for JVM fatal error logs -XX:ErrorFile=logs/hs_err_pid%p.log
# JDK 9+ GC logging 9-:-Xlog:gc*,gc+age=trace,safepoint:file=logs/gc.log:utctime,pid,tags:filecount=32,filesize=64m # due to internationalization enhancements in JDK 9 Elasticsearch need to set the provider to COMPAT otherwise # time/date parsing will break in an incompatible way for some date patterns and locals 9-:-Djava.locale.providers=COMPAT
# temporary workaround for C2 bug with JDK 10 on hardware with AVX-512 10-:-XX:UseAVX=2
