Elasticsearch安装
安装java8
下载地址：www.oracle.com/technetwork…
国内下载地址：https://mirrors.huaweicloud.com/elasticsearch/7.11.0/
1、解压缩包
$ tar -xvf jdk-8u231-linux-x64.tar
复制代码2、配置jdk环境变量
将jdk配置到/etc/profile，可以在任何一个目录访问jdk
$ vim /etc/profile
复制代码3、在/etc/profile文件尾部添加如下内容
export JAVA_HOME=/usr/local/webserver/soft/jdk1.8.0_231 #jdk安装目录
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib:$CLASSPATH
export JAVA_PATH=${JAVA_HOME}/bin:${JRE_HOME}/bin
export PATH=$PATH:${JAVA_PATH}
复制代码4、source /etc/profile让profile文件立即生效
$ source /etc/profile
复制代码5、查看Java版本
$ java -version
java version "1.8.0_231"
Java(TM) SE Runtime Environment (build 1.8.0_231-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.231-b11, mixed mode)
复制代码安装Elasticsearch
1、解压缩包
$ tar -xvf elasticsearch-7.5.1-darwin-x86_64.tar
$ cd elasticsearch-7.5.1/bin
复制代码2、启动
$ ./elasticsearch
future versions of Elasticsearch will require Java 11; your Java version from [/usr/local/webserver/soft/jdk1.8.0_231/jre] does not meet this requirement
[2020-01-07T16:07:14,532][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [kaluli-web-18-24] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:163) ~[elasticsearch-7.5.1.jar:7.5.1]
at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150) ~[elasticsearch-7.5.1.jar:7.5.1]
at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-7.5.1.jar:7.5.1]
at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:125) ~[elasticsearch-cli-7.5.1.jar:7.5.1]
at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-7.5.1.jar:7.5.1]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:115) ~[elasticsearch-7.5.1.jar:7.5.1]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-7.5.1.jar:7.5.1]
Caused by: java.lang.RuntimeException: can not run elasticsearch as root
at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:105) ~[elasticsearch-7.5.1.jar:7.5.1]
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:172) ~[elasticsearch-7.5.1.jar:7.5.1]
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:349) ~[elasticsearch-7.5.1.jar:7.5.1]
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) ~[elasticsearch-7.5.1.jar:7.5.1]
... 6 more
#以上错误解决方法：
#elasticsearch默认不能用root账户启动，所以可以添加其他账户或者给系统现有账户授权elasticsearch目录
$ useradd elasticsearch
$ chown -R elasticsearch:elasticsearch /usr/local/webserver/soft/elasticsearch-7.5.1
复制代码[2020-01-07T16:19:46,688][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [kaluli-web-18-24] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: ElasticsearchException[Failure running machine learning native code. This could be due to running on an unsupported OS or distribution, missing OS libraries, or a problem with the temp directory. To bypass this problem by running Elasticsearch without machine learning functionality set [xpack.ml.enabled: false].]
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:163) ~[elasticsearch-7.5.1.jar:7.5.1]
at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150) ~[elasticsearch-7.5.1.jar:7.5.1]
at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-7.5.1.jar:7.5.1]
at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:125) ~[elasticsearch-cli-7.5.1.jar:7.5.1]
at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-7.5.1.jar:7.5.1]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:115) ~[elasticsearch-7.5.1.jar:7.5.1]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-7.5.1.jar:7.5.1]
Caused by: org.elasticsearch.ElasticsearchException: Failure running machine learning native code. This could be due to running on an unsupported OS or distribution, missing OS libraries, or a problem with the temp directory. To bypass this problem by running Elasticsearch without machine learning functionality set [xpack.ml.enabled: false].
at org.elasticsearch.xpack.ml.MachineLearning.createComponents(MachineLearning.java:535) ~[?:?]
at org.elasticsearch.node.Node.lambda$new$9(Node.java:449) ~[elasticsearch-7.5.1.jar:7.5.1]
at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:267) ~[?:1.8.0_231]
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382) ~[?:1.8.0_231]
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) ~[?:1.8.0_231]
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) ~[?:1.8.0_231]
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[?:1.8.0_231]
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_231]
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[?:1.8.0_231]
#
at org.elasticsearch.node.Node.<init>(Node.java:452) ~[elasticsearch-7.5.1.jar:7.5.1]
at org.elasticsearch.node.Node.<init>(Node.java:253) ~[elasticsearch-7.5.1.jar:7.5.1]
at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:221) ~[elasticsearch-7.5.1.jar:7.5.1]
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:221) ~[elasticsearch-7.5.1.jar:7.5.1]
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:349) ~[elasticsearch-7.5.1.jar:7.5.1]
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) ~[elasticsearch-7.5.1.jar:7.5.1]
... 6 more
#以上错误解决方法：
#进入config目录在elasticsearch.yml添加一条配置
$ vim config/elasticsearch.yml
#新增配置
xpack.ml.enabled: false
#浏览器访问(取消network.host前注释)
network.host: 0.0.0.0
复制代码ERROR: [2] bootstrap checks failed
[1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
[2]: the default discovery settings are unsuitable for production use; at least one of [discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes] must be configured
[2020-01-07T16:44:09,071][INFO ][o.e.n.Node ] [kaluli-web-18-24] stopping ...
[2020-01-07T16:44:09,099][INFO ][o.e.n.Node ] [kaluli-web-18-24] stopped
[2020-01-07T16:44:09,099][INFO ][o.e.n.Node ] [kaluli-web-18-24] closing ...
[2020-01-07T16:44:09,129][INFO ][o.e.n.Node ] [kaluli-web-18-24] closed
#以上错误解决方法：切换到root用户执行命令
$ sysctl -w vm.max_map_count=262144
#查看结果
$ sysctl -a | grep vm.max_map_count
vm.max_map_count = 262144
#上述方法修改之后，重启虚拟机将失效
#解决办法：在 /etc/sysctl.conf 文件最后添加一行
vm.max_map_count=262144
复制代码ERROR: [1] bootstrap checks failed
[1]: the default discovery settings are unsuitable for production use; at least one of [discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes] must be configured
#以上错误解决方法：修改elasticsearch.yml，取消注释保留一个节点
cluster.initial_master_nodes: ["node-1"]
复制代码查看es版本
方法一
$ curl -XGET localhost:9200
{
"name" : "kaluli-web-18-24",
"cluster_name" : "elasticsearch",
"cluster_uuid" : "SxI538JmRU6OHPcuxVd_-A",
"version" : {
"number" : "7.5.1",
"build_flavor" : "default",
"build_type" : "tar",
"build_hash" : "3ae9ac9a93c95bd0cdc054951cf95d88e1e18d96",
"build_date" : "2019-12-16T22:57:37.835892Z",
"build_snapshot" : false,
"lucene_version" : "8.3.0",
"minimum_wire_compatibility_version" : "6.8.0",
"minimum_index_compatibility_version" : "6.0.0-beta1"
},
"tagline" : "You Know, for Search"
}
复制代码方法二
$ ps -ef | grep elasticsearch
root 1341 560 0 16:19 pts/0 00:00:00 su elasticsearch
elastic+ 1570 1342 57 16:28 pts/0 00:00:49 /usr/local/webserver/soft/jdk1.8.0_231/bin/java -Des.networkaddress.cache.ttl=60 -Des.networkaddress.cache.negative.ttl=10 -XX:+AlwaysPreTouch -Xss1m -Djava.awt.headless=true -Dfile.encoding=UTF-8 -Djna.nosys=true -XX:-OmitStackTraceInFastThrow -Dio.netty.noUnsafe=true -Dio.netty.noKeySetOptimization=true -Dio.netty.recycler.maxCapacityPerThread=0 -Dio.netty.allocator.numDirectArenas=0 -Dlog4j.shutdownHookEnabled=false -Dlog4j2.disable.jmx=true -Djava.locale.providers=COMPAT -Xms1g -Xmx1g -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -Djava.io.tmpdir=/tmp/elasticsearch-450302344215976032 -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=data -XX:ErrorFile=logs/hs_err_pid%p.log -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintTenuringDistribution -XX:+PrintGCApplicationStoppedTime -Xloggc:logs/gc.log -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=32 -XX:GCLogFileSize=64m -XX:MaxDirectMemorySize=536870912 -Des.path.home=/usr/local/webserver/soft/elasticsearch-7.5.1 -Des.path.conf=/usr/local/webserver/soft/elasticsearch-7.5.1/config -Des.distribution.flavor=default -Des.distribution.type=tar -Des.bundled_jdk=true -cp /usr/local/webserver/soft/elasticsearch-7.5.1/lib/* org.elasticsearch.bootstrap.Elasticsearch
root 1741 1723 0 16:30 pts/1 00:00:00 grep --color=auto elasticsearch
报错
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ulimit -a
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发现当前最大用户进程数被限制为3802，而ElasticSearch要求的最小进程数为4096，需要调大概值。
编辑/etc/security/limit.d/20-nproc.conf配置文件，改为如下配置。
设置es密码
修改 config/elasticsearch.yml
http.cors.enabled: true http.cors.allow-origin: "*" http.cors.allow-headers: Authorization xpack.security.enabled: true xpack.security.transport.ssl.enabled: true
执行elasticsearch-setup-passwords interactive
输入各种密码
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es集群配置
master
#集群名称 所有节点要保持一致 cluster.name: "es" #本节点名称 node.name: master #手动指定可以成为 mater 的所有节点的 name 或者 ip，这些配置将会在第一次选举中进行计算 cluster.initial_master_nodes: ["master"] #作为master节点 node.master: true #是否存储数据 node.data: true #head插件设置，支持跨域访问 http.cors.enabled: true http.cors.allow-origin: "*" http.port: 9200 transport.tcp.port: 9300 #设置本机通信地址,用于其它节点和该节点交互的ip地址 network.host: 0.0.0.0 xpack.ml.enabled: false xpack.security.enabled: true #设置密码
node-1
#集群名称 所有节点要保持一致 cluster.name: "es" #本节点名称 node.name: node-1 #手动指定可以成为 mater 的所有节点的 name 或者 ip，这些配置将会在第一次选举中进行计算 cluster.initial_master_nodes: ["master"] node.master: false #是否存储数据 node.data: true http.port: 9202 transport.tcp.port: 9302 #master地址 discovery.seed_hosts: ["192.168.2.200:9300"] #设置本机通信地址,用于其它节点和该节点交互的ip地址 network.host: 0.0.0.0 xpack.ml.enabled: false xpack.security.enabled: true #设置密码
node-2
#集群名称 所有节点要保持一致 cluster.name: "es" #本节点名称 node.name: node-2 #手动指定可以成为 mater 的所有节点的 name 或者 ip，这些配置将会在第一次选举中进行计算 cluster.initial_master_nodes: ["master"] node.master: false #是否存储数据 node.data: true http.port: 9203 transport.tcp.port: 9303 #master地址 discovery.seed_hosts: ["192.168.2.200:9300"] network.host: 0.0.0.0 xpack.ml.enabled: false xpack.security.enabled: true #设置密码
es单节点配置
配置内容如下
# ======================== 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: # #cluster.name: my-application # # ------------------------------------ Node ------------------------------------ # # Use a descriptive name for the node: # node.name: node-1 #节点名称 # # 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: 192.168.2.200 # # Set a custom port for HTTP: # #http.port: 9200 # # For more information, consult the network module documentation. # # --------------------------------- Discovery ---------------------------------- # # Pass an initial list of hosts to perform discovery when this node is started: # The default list of hosts is ["127.0.0.1", "[::1]"] # #discovery.seed_hosts: ["host1", "host2"] # # Bootstrap the cluster using an initial set of master-eligible nodes: # cluster.initial_master_nodes: ["node-1"] #如果要设置密码必须设置一个主节点 # # For more information, consult the discovery and cluster formation 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 xpack.ml.enabled: false #不配置会报错 xpack.security.enabled: true #设置登录
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