如何保持弹性search运行在Linux服务器上

我正在通过腻子客户端使用ssh访问我的服务器,但是当我的腻子变为不活动状态或closures弹性search时, 我想保持它始终运行。 我怎样才能做到这一点?

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你所遇到的问题是elasticsearch不能作为守护进程(服务器)启动。 相反,你要像正常的程序那样开始。 因此,当您停止SSH会话时,程序将停止运行。

为了在重新启动服务器时启动elasticsearch,需要将elasticsearch添加到服务器启动。

你没有说你正在服务器上运行哪个操作系统。 假设它是一个Debian(例如Ubuntu)系统),您必须创建一个文件,您可以将它放在/etc/init.d目录中。

我已经从我自己的服务器复制下面的文件。 你可能已经拥有了。 查找文件/etc/init.d/elasticsearch

$ more /etc/init.d/elasticsearch 

一旦你有文件,你可以运行命令

 sudo update-rc.d elasticsearch defaults 95 10 

这将“安装”elasticsearch作为服务。

要启动和停止服务,您可以运行以下命令:

 sudo service elasticsearch start sudo service elasticsearch stop 

如果您没有它,文件在下面。

 #!/bin/sh # # /etc/init.d/elasticsearch -- startup script for Elasticsearch # # Written by Miquel van Smoorenburg <miquels@cistron.nl>. # Modified for Debian GNU/Linux by Ian Murdock <imurdock@gnu.ai.mit.edu>. # Modified for Tomcat by Stefan Gybas <sgybas@debian.org>. # Modified for Tomcat6 by Thierry Carrez <thierry.carrez@ubuntu.com>. # Additional improvements by Jason Brittain <jason.brittain@mulesoft.com>. # Modified by Nicolas Huray for Elasticsearch <nicolas.huray@gmail.com>. # ### BEGIN INIT INFO # Provides: elasticsearch # Required-Start: $network $remote_fs $named # Required-Stop: $network $remote_fs $named # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: Starts elasticsearch # Description: Starts elasticsearch using start-stop-daemon ### END INIT INFO PATH=/bin:/usr/bin:/sbin:/usr/sbin NAME=elasticsearch DESC="Elasticsearch server" DEFAULT=/etc/default/$NAME if [ `id -u` -ne 0 ]; then echo "You need root privileges to run this script" exit 1 fi . /lib/lsb/init-functions if [ -r /etc/default/rcS ]; then . /etc/default/rcS fi # The following variables can be overwritten in $DEFAULT # Run Elasticsearch as this user ID and group ID ES_USER=elasticsearch ES_GROUP=elasticsearch # The first existing directory is used for JAVA_HOME (if JAVA_HOME is not defined in $DEFAULT) JDK_DIRS="/usr/lib/jvm/java-8-oracle/ /usr/lib/jvm/j2sdk1.8-oracle/ /usr/lib/jvm/jdk-7-oracle-x64 /usr/lib/jvm/java-7-oracle /usr/lib/jvm/j2sdk1.7-oracle/ /usr/lib/jvm/jav a-7-openjdk /usr/lib/jvm/java-7-openjdk-amd64/ /usr/lib/jvm/java-7-openjdk-armhf /usr/lib/jvm/java-7-openjdk-i386/ /usr/lib/jvm/default-java" # Look for the right JVM to use for jdir in $JDK_DIRS; do if [ -r "$jdir/bin/java" -a -z "${JAVA_HOME}" ]; then JAVA_HOME="$jdir" fi done export JAVA_HOME # Directory where the Elasticsearch binary distribution resides ES_HOME=/usr/share/$NAME # Heap size defaults to 256m min, 1g max # Set ES_HEAP_SIZE to 50% of available RAM, but no more than 31g #ES_HEAP_SIZE=2g # Heap new generation #ES_HEAP_NEWSIZE= # max direct memory #ES_DIRECT_SIZE= # Additional Java OPTS #ES_JAVA_OPTS= # Maximum number of open files MAX_OPEN_FILES=65535 # Maximum amount of locked memory #MAX_LOCKED_MEMORY= # Elasticsearch log directory LOG_DIR=/var/log/$NAME # Elasticsearch data directory DATA_DIR=/var/lib/$NAME # Elasticsearch work directory WORK_DIR=/tmp/$NAME # Elasticsearch configuration directory CONF_DIR=/etc/$NAME # Elasticsearch configuration file (elasticsearch.yml) CONF_FILE=$CONF_DIR/elasticsearch.yml # Maximum number of VMA (Virtual Memory Areas) a process can own MAX_MAP_COUNT=262144 # End of variables that can be overwritten in $DEFAULT # overwrite settings from default file if [ -f "$DEFAULT" ]; then . "$DEFAULT" fi # Define other required variables PID_FILE=/var/run/$NAME.pid DAEMON=$ES_HOME/bin/elasticsearch DAEMON_OPTS="-d -p $PID_FILE --default.config=$CONF_FILE --default.path.home=$ES_HOME --default.path.logs=$LOG_DIR --default.path.data=$DATA_DIR --default.path.work=$WORK_ DIR --default.path.conf=$CONF_DIR" export ES_HEAP_SIZE export ES_HEAP_NEWSIZE export ES_DIRECT_SIZE export ES_JAVA_OPTS # Check DAEMON exists test -x $DAEMON || exit 0 checkJava() { if [ -x "$JAVA_HOME/bin/java" ]; then JAVA="$JAVA_HOME/bin/java" else JAVA=`which java` fi if [ ! -x "$JAVA" ]; then echo "Could not find any executable java binary. Please install java in your PATH or set JAVA_HOME" exit 1 fi } case "$1" in start) checkJava if [ -n "$MAX_LOCKED_MEMORY" -a -z "$ES_HEAP_SIZE" ]; then log_failure_msg "MAX_LOCKED_MEMORY is set - ES_HEAP_SIZE must also be set" exit 1 fi log_daemon_msg "Starting $DESC" pid=`pidofproc -p $PID_FILE elasticsearch` if [ -n "$pid" ] ; then log_begin_msg "Already running." log_end_msg 0 exit 0 fi # Prepare environment mkdir -p "$LOG_DIR" "$DATA_DIR" "$WORK_DIR" && chown "$ES_USER":"$ES_GROUP" "$LOG_DIR" "$DATA_DIR" "$WORK_DIR" touch "$PID_FILE" && chown "$ES_USER":"$ES_GROUP" "$PID_FILE" if [ -n "$MAX_OPEN_FILES" ]; then ulimit -n $MAX_OPEN_FILES fi if [ -n "$MAX_LOCKED_MEMORY" ]; then ulimit -l $MAX_LOCKED_MEMORY fi if [ -n "$MAX_MAP_COUNT" -a -f /proc/sys/vm/max_map_count ]; then sysctl -q -w vm.max_map_count=$MAX_MAP_COUNT fi # Start Daemon start-stop-daemon --start -b --user "$ES_USER" -c "$ES_USER" --pidfile "$PID_FILE" --exec $DAEMON -- $DAEMON_OPTS return=$? if [ $return -eq 0 ] then i=0 timeout=10 # Wait for the process to be properly started before exiting until { cat "$PID_FILE" | xargs kill -0; } >/dev/null 2>&1 do sleep 1 i=$(($i + 1)) [ $i -gt $timeout ] && log_end_msg 1 done else log_end_msg $return fi ;; stop) log_daemon_msg "Stopping $DESC" if [ -f "$PID_FILE" ]; then start-stop-daemon --stop --pidfile "$PID_FILE" \ --user "$ES_USER" \ --retry=TERM/20/KILL/5 >/dev/null if [ $? -eq 1 ]; then log_progress_msg "$DESC is not running but pid file exists, cleaning up" elif [ $? -eq 3 ]; then PID="`cat $PID_FILE`" log_failure_msg "Failed to stop $DESC (pid $PID)" exit 1 fi rm -f "$PID_FILE" else log_progress_msg "(not running)" fi log_end_msg 0 ;; status) status_of_proc -p $PID_FILE elasticsearch elasticsearch && exit 0 || exit $? ;; restart|force-reload) if [ -f "$PID_FILE" ]; then $0 stop sleep 1 fi $0 start ;; *) log_success_msg "Usage: $0 {start|stop|restart|force-reload|status}" exit 1 ;; esac exit 0