elasticsearch 启动时指定jdk版本
#!/bin/bash CONTROLLING STARTUP:This script> behavior, those variables are:
ES_PATH_CONF -- Path to config directory
ES_JAVA_OPTS -- External Java Opts on top of the defaults set
Optionally, exact memory values can be set using the `ES_JAVA_OPTS`. Note that
the Xms and Xmx lines in the JVM options file must be commented out. Example
values are "512m", and "10g".
ES_JAVA_OPTS="-Xms8g -Xmx8g" ./bin/elasticsearch
#配置自己的jdk1.8
export JAVA_HOME=/home/hiekay/jdk1.8.0_181/
export PATH=$JAVA_HOME/bin:$PATH
source "`dirname "$0"`"/elasticsearch-env
ES_JVM_OPTIONS="$ES_PATH_CONF"/jvm.options
JVM_OPTIONS=`"$JAVA" -cp "$ES_CLASSPATH" org.elasticsearch.tools.launchers.JvmOptionsParser "$ES_JVM_OPTIONS"`
ES_JAVA_OPTS="${JVM_OPTIONS//\$\{ES_TMPDIR\}/$ES_TMPDIR} $ES_JAVA_OPTS"
#我添加的jdk判断
if [ -x "$JAVA_HOME/bin/java" ]; then
JAVA="/home/hiekay/jdk1.8.0_181/bin/java"
else
JAVA=`which java`
fi
cd "$ES_HOME"
manual parsing to find out, if process should be detached
if ! echo $* | grep -E '(^-d |-d$| -d |--daemonize$|--daemonize )' > /dev/null; then
exec \
"$JAVA" \
$ES_JAVA_OPTS \
-Des.path.home="$ES_HOME" \
-Des.path.conf="$ES_PATH_CONF" \
-Des.distribution.flavor="$ES_DISTRIBUTION_FLAVOR" \
-Des.distribution.type="$ES_DISTRIBUTION_TYPE" \
-cp "$ES_CLASSPATH" \
org.elasticsearch.bootstrap.Elasticsearch \
"$@"
else
exec \
"$JAVA" \
$ES_JAVA_OPTS \
-Des.path.home="$ES_HOME" \
-Des.path.conf="$ES_PATH_CONF" \
-Des.distribution.flavor="$ES_DISTRIBUTION_FLAVOR" \
-Des.distribution.type="$ES_DISTRIBUTION_TYPE" \
-cp "$ES_CLASSPATH" \
org.elasticsearch.bootstrap.Elasticsearch \
"$@" \
/dev/null ; then
exit 1
fi
exit 0
fi
exit $?
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