排错ERROR: [1] bootstrap checks failed [1]: max virtual memory areas vm.max_map_count [65530] is too l

future versions of Elasticsearch will require Java 11; your Java version from [/app/jdk1.8/jre] does not meet this requirement
[2022-11-23T14:53:18,545][INFO ][o.e.e.NodeEnvironment ] [elastic] using [1] data paths, mounts [[/ (rootfs)]], net usable_space [33.3gb], net total_space [39.2gb], types [rootfs]
[2022-11-23T14:53:18,546][INFO ][o.e.e.NodeEnvironment ] [elastic] heap size [990.7mb], compressed ordinary object pointers [true]
[2022-11-23T14:53:18,653][INFO ][o.e.n.Node ] [elastic] node name [elastic], node ID [fKeRiQ2hTBamHWZY8-elnQ], cluster name [elastic]
[2022-11-23T14:53:18,653][INFO ][o.e.n.Node ] [elastic] version[7.6.1], pid[8606], build[default/tar/aa751e09be0a5072e8570670309b1f12348f023b/2020-02-29T00:15:25.529771Z], OS[Linux/3.10.0-957.21.3.el7.x86_64/amd64], JVM[Oracle Corporation/Java HotSpot™ 64-Bit Server VM/1.8.0_202/25.202-b08]
[2022-11-23T14:53:18,654][INFO ][o.e.n.Node ] [elastic] JVM home [/app/jdk1.8/jre]
[2022-11-23T14:53:18,654][INFO ][o.e.n.Node ] [elastic] JVM arguments [-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-8612871008407479942, -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=/app/es, -Des.path.conf=/app/es/config, -Des.distribution.flavor=default, -Des.distribution.type=tar, -Des.bundled_jdk=true]
[2022-11-23T14:53:20,537][INFO ][o.e.p.PluginsService ] [elastic] loaded module [aggs-matrix-stats]
[2022-11-23T14:53:20,537][INFO ][o.e.p.PluginsService ] [elastic] loaded module [analysis-common]
[2022-11-23T14:53:20,537][INFO ][o.e.p.PluginsService ] [elastic] loaded module [flattened]
[2022-11-23T14:53:20,537][INFO ][o.e.p.PluginsService ] [elastic] loaded module [frozen-indices]
[2022-11-23T14:53:20,538][INFO ][o.e.p.PluginsService ] [elastic] loaded module [ingest-common]
[2022-11-23T14:53:20,538][INFO ][o.e.p.PluginsService ] [elastic] loaded module [ingest-geoip]
[2022-11-23T14:53:20,538][INFO ][o.e.p.PluginsService ] [elastic] loaded module [ingest-user-agent]
[2022-11-23T14:53:20,538][INFO ][o.e.p.PluginsService ] [elastic] loaded module [lang-expression]
[2022-11-23T14:53:20,538][INFO ][o.e.p.PluginsService ] [elastic] loaded module [lang-mustache]
[2022-11-23T14:53:20,539][INFO ][o.e.p.PluginsService ] [elastic] loaded module [lang-painless]
[2022-11-23T14:53:20,539][INFO ][o.e.p.PluginsService ] [elastic] loaded module [mapper-extras]
[2022-11-23T14:53:20,539][INFO ][o.e.p.PluginsService ] [elastic] loaded module [parent-join]
[2022-11-23T14:53:20,539][INFO ][o.e.p.PluginsService ] [elastic] loaded module [percolator]
[2022-11-23T14:53:20,539][INFO ][o.e.p.PluginsService ] [elastic] loaded module [rank-eval]
[2022-11-23T14:53:20,540][INFO ][o.e.p.PluginsService ] [elastic] loaded module [reindex]
[2022-11-23T14:53:20,540][INFO ][o.e.p.PluginsService ] [elastic] loaded module [repository-url]
[2022-11-23T14:53:20,540][INFO ][o.e.p.PluginsService ] [elastic] loaded module [search-business-rules]
[2022-11-23T14:53:20,540][INFO ][o.e.p.PluginsService ] [elastic] loaded module [spatial]
[2022-11-23T14:53:20,541][INFO ][o.e.p.PluginsService ] [elastic] loaded module [transform]
[2022-11-23T14:53:20,541][INFO ][o.e.p.PluginsService ] [elastic] loaded module [transport-netty4]
[2022-11-23T14:53:20,541][INFO ][o.e.p.PluginsService ] [elastic] loaded module [vectors]
[2022-11-23T14:53:20,541][INFO ][o.e.p.PluginsService ] [elastic] loaded module [x-pack-analytics]
[2022-11-23T14:53:20,541][INFO ][o.e.p.PluginsService ] [elastic] loaded module [x-pack-ccr]
[2022-11-23T14:53:20,541][INFO ][o.e.p.PluginsService ] [elastic] loaded module [x-pack-core]
[2022-11-23T14:53:20,542][INFO ][o.e.p.PluginsService ] [elastic] loaded module [x-pack-deprecation]
[2022-11-23T14:53:20,542][INFO ][o.e.p.PluginsService ] [elastic] loaded module [x-pack-enrich]
[2022-11-23T14:53:20,542][INFO ][o.e.p.PluginsService ] [elastic] loaded module [x-pack-graph]
[2022-11-23T14:53:20,542][INFO ][o.e.p.PluginsService ] [elastic] loaded module [x-pack-ilm]
[2022-11-23T14:53:20,542][INFO ][o.e.p.PluginsService ] [elastic] loaded module [x-pack-logstash]
[2022-11-23T14:53:20,543][INFO ][o.e.p.PluginsService ] [elastic] loaded module [x-pack-ml]
[2022-11-23T14:53:20,543][INFO ][o.e.p.PluginsService ] [elastic] loaded module [x-pack-monitoring]
[2022-11-23T14:53:20,543][INFO ][o.e.p.PluginsService ] [elastic] loaded module [x-pack-rollup]
[2022-11-23T14:53:20,543][INFO ][o.e.p.PluginsService ] [elastic] loaded module [x-pack-security]
[2022-11-23T14:53:20,543][INFO ][o.e.p.PluginsService ] [elastic] loaded module [x-pack-sql]
[2022-11-23T14:53:20,543][INFO ][o.e.p.PluginsService ] [elastic] loaded module [x-pack-voting-only-node]
[2022-11-23T14:53:20,544][INFO ][o.e.p.PluginsService ] [elastic] loaded module [x-pack-watcher]
[2022-11-23T14:53:20,544][INFO ][o.e.p.PluginsService ] [elastic] no plugins loaded
[2022-11-23T14:53:24,227][INFO ][o.e.x.s.a.s.FileRolesStore] [elastic] parsed [0] roles from file [/app/es/config/roles.yml]
[2022-11-23T14:53:24,798][INFO ][o.e.x.m.p.l.CppLogMessageHandler] [elastic] [controller/8698] [Main.cc@110] controller (64 bit): Version 7.6.1 (Build 6eb6e036390036) Copyright © 2020 Elasticsearch BV
[2022-11-23T14:53:25,412][DEBUG][o.e.a.ActionModule ] [elastic] Using REST wrapper from plugin org.elasticsearch.xpack.security.Security
[2022-11-23T14:53:25,526][INFO ][o.e.d.DiscoveryModule ] [elastic] using discovery type [zen] and seed hosts providers [settings]
[2022-11-23T14:53:26,365][INFO ][o.e.n.Node ] [elastic] initialized
[2022-11-23T14:53:26,366][INFO ][o.e.n.Node ] [elastic] starting …

ERROR: [1] bootstrap checks failed
[1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
ERROR: Elasticsearch did not exit normally – check the logs at /*/es/logs/elastic.log
今天用centos 7安装 es 时启动报错如上，解决方案如下

需要修改vm.max_map_count参数
[root@iZ8vb5p7xsncw020duo9rxZ es]# sysctl -w vm.max_map_count=262144 #临时修改
vm.max_map_count = 262144
[root@iZ8vb5p7xsncw020duo9rxZ es]# echo vm.max_map_count=262144>> /etc/sysctl.conf #永久修改
[root@iZ8vb5p7xsncw020duo9rxZ es]# sysctl -p

再次启动成功