Installation and deployment Elastic Search
In the
/home/directory newelasticfolder, switch this file.cd /home mkdir elastic cd elasticdownload
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.3.2-linux-x86_64.tar.gzDecompression.
tar -zxvf elasticsearch-7.3.2-linux-x86_64.tar.gzstart up
sh elasticsearchWill find the error, the error message:
OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release. [2019-09-24T10:27:40,249][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [localhost.localdomain] 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-7.3.2.jar:7.3.2] at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150) ~[elasticsearch-7.3.2.jar:7.3.2] at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-7.3.2.jar:7.3.2] at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-7.3.2.jar:7.3.2] at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-7.3.2.jar:7.3.2] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:115) ~[elasticsearch-7.3.2.jar:7.3.2] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-7.3.2.jar:7.3.2] Caused by: java.lang.RuntimeException: can not run elasticsearch as root at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:105) ~[elasticsearch-7.3.2.jar:7.3.2] at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:172) ~[elasticsearch-7.3.2.jar:7.3.2] at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:349) ~[elasticsearch-7.3.2.jar:7.3.2] at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) ~[elasticsearch-7.3.2.jar:7.3.2] ... 6 moreMeaning can not be started by the root user, then we create a new user to start.
useradd elastic chown -R elastic:elastic elasticsearch-7.3.2 su elastic sh elasticsearch-7.3.2/bin/elasticsearchThen start successfully. But now is the front desk to start, we can
Ctrl + Cwithdraw, thensh elasticsearch-7.3.2/bin/elasticsearch -dthe command to start the background.After the start can use
ps -ef | grep elasticsearchto view the process.elastic 14992 1 99 10:31 pts/1 00:00:24 /home/elastic/elasticsearch-7.3.2/jdk/bin/java -Xms1g -Xmx1g -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -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 -Dlog4j.shutdownHookEnabled=false -Dlog4j2.disable.jmx=true -Djava.io.tmpdir=/tmp/elasticsearch-13731651965100738695 -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=data -XX:ErrorFile=logs/hs_err_pid%p.log -Xlog:gc*,gc+age=trace,safepoint:file=logs/gc.log:utctime,pid,tags:filecount=32,filesize=64m -Djava.locale.providers=COMPAT -Dio.netty.allocator.type=unpooled -XX:MaxDirectMemorySize=536870912 -Des.path.home=/home/elastic/elasticsearch-7.3.2 -Des.path.conf=/home/elastic/elasticsearch-7.3.2/config -Des.distribution.flavor=default -Des.distribution.type=tar -Des.bundled_jdk=true -cp /home/elastic/elasticsearch-7.3.2/lib/* org.elasticsearch.bootstrap.Elasticsearch -d elastic 15008 14992 0 10:31 pts/1 00:00:00 /home/elastic/elasticsearch-7.3.2/modules/x-pack-ml/platform/linux-x86_64/bin/controller elastic 15024 14732 0 10:31 pts/1 00:00:00 grep --color=auto elasticsearchTest
curl http://localhost:9200access . Displays the following information:{ "name" : "localhost.localdomain", "cluster_name" : "elasticsearch", "cluster_uuid" : "VFVnijYtRSOOaLP0HP37ow", "version" : { "number" : "7.3.2", "build_flavor" : "default", "build_type" : "tar", "build_hash" : "1c1faf1", "build_date" : "2019-09-06T14:40:30.409026Z", "build_snapshot" : false, "lucene_version" : "8.1.0", "minimum_wire_compatibility_version" : "6.8.0", "minimum_index_compatibility_version" : "6.0.0-beta1" }, "tagline" : "You Know, for Search" }In the host computer to access external failure.
An error
ERROR: [2] bootstrap checks failed [1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65535] [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 configuredSwitching the root user,
vi /etc/security/limits.confIn the penultimate line
* soft nofile 65536 * hard nofile 65536 # End of filevi /etc/sysctl.confAdd tovm.max_map_count=655360After saving execution
sysctl -p.Start, error
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 configuredModify
elasticsearch.yml, cancel reservations a comment node
cluster.initial_master_nodes: ["node-1","node-2"]Start again, ok. In an external browser access: HTTP: // ip: 9200
{ "name" : "localhost.localdomain", "cluster_name" : "elasticsearch", "cluster_uuid" : "VFVnijYtRSOOaLP0HP37ow", "version" : { "number" : "7.3.2", "build_flavor" : "default", "build_type" : "tar", "build_hash" : "1c1faf1", "build_date" : "2019-09-06T14:40:30.409026Z", "build_snapshot" : false, "lucene_version" : "8.1.0", "minimum_wire_compatibility_version" : "6.8.0", "minimum_index_compatibility_version" : "6.0.0-beta1" }, "tagline" : "You Know, for Search" }ok.
References: