ps -ef | grep elastic

[elsearch@cos7-1 bin]$ ps -ef | grep elastic

elsearch 53362 53298 0 10:22 pts/5 00:00:00 vim elasticsearch.yml

elsearch 56994 1 5 12:41 ? 00:00:25 /opt/elasticsearch-7.10.0/jdk/bin/java -Xshare:auto -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 -XX:+ShowCodeDetailsInExceptionMessages -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=SPI,COMPAT -Xms1g -Xmx1g -XX:+UseG1GC -XX:G1ReservePercent=25 -XX:InitiatingHeapOccupancyPercent=30 -Djava.io.tmpdir=/tmp/elasticsearch-14357424531153198419 -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 -XX:MaxDirectMemorySize=536870912 -Des.path.home=/opt/elasticsearch-7.10.0 -Des.path.conf=/opt/elasticsearch-7.10.0/config -Des.distribution.flavor=default -Des.distribution.type=tar -Des.bundled_jdk=true -cp /opt/elasticsearch-7.10.0/lib/* org.elasticsearch.bootstrap.Elasticsearch -E node.name=esnode01 -E cluster.name=es-cluster01 -E path.data=node01_data -E network.host=0.0.0.0 -E cluster.initial_master_nodes=esnode01,esnode02,esnode03,esnode04 -d

elsearch 58469 58193 0 12:48 pts/0 00:00:00 grep --color=auto elastic

[elsearch@cos7-1 bin]$ kill -9 53362

[elsearch@cos7-1 bin]$ kill -9 56994

[elsearch@cos7-1 bin]$ ps -ef | grep elastic

elsearch 58498 58193 0 12:49 pts/0 00:00:00 grep --color=auto elastic

[elsearch@cos7-1 bin]$ ./elasticsearch