| 1 | #!/bin/sh |
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| 2 | |
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| 3 | ES_CLASSPATH=$ES_CLASSPATH:$ES_HOME/lib/elasticsearch-0.19.8.jar:$ES_HOME/lib/*:$ES_HOME/lib/sigar/* |
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| 4 | |
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| 5 | if [ "x$ES_MIN_MEM" = "x" ]; then |
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| 6 | ES_MIN_MEM=256m |
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| 7 | fi |
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| 8 | if [ "x$ES_MAX_MEM" = "x" ]; then |
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| 9 | ES_MAX_MEM=1g |
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| 10 | fi |
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| 11 | if [ "x$ES_HEAP_SIZE" != "x" ]; then |
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| 12 | ES_MIN_MEM=$ES_HEAP_SIZE |
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| 13 | ES_MAX_MEM=$ES_HEAP_SIZE |
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| 14 | fi |
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| 15 | |
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| 16 | # min and max heap sizes should be set to the same value to avoid |
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| 17 | # stop-the-world GC pauses during resize, and so that we can lock the |
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| 18 | # heap in memory on startup to prevent any of it from being swapped |
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| 19 | # out. |
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| 20 | JAVA_OPTS="$JAVA_OPTS -Xms${ES_MIN_MEM}" |
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| 21 | JAVA_OPTS="$JAVA_OPTS -Xmx${ES_MAX_MEM}" |
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| 22 | |
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| 23 | # new generation |
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| 24 | if [ "x$ES_HEAP_NEWSIZE" != "x" ]; then |
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| 25 | JAVA_OPTS="$JAVA_OPTS -Xmn${ES_HEAP_NEWSIZE}" |
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| 26 | fi |
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| 27 | |
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| 28 | # reduce the per-thread stack size |
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| 29 | JAVA_OPTS="$JAVA_OPTS -Xss256k" |
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| 30 | |
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| 31 | # set to headless, just in case |
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| 32 | JAVA_OPTS="$JAVA_OPTS -Djava.awt.headless=true" |
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| 33 | |
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| 34 | # Force the JVM to use IPv4 stack |
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| 35 | # JAVA_OPTS="$JAVA_OPTS -Djava.net.preferIPv4Stack=true" |
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| 36 | |
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| 37 | # Enable aggressive optimizations in the JVM |
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| 38 | # - Disabled by default as it might cause the JVM to crash |
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| 39 | # JAVA_OPTS="$JAVA_OPTS -XX:+AggressiveOpts" |
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| 40 | |
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| 41 | JAVA_OPTS="$JAVA_OPTS -XX:+UseParNewGC" |
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| 42 | JAVA_OPTS="$JAVA_OPTS -XX:+UseConcMarkSweepGC" |
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| 43 | |
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| 44 | JAVA_OPTS="$JAVA_OPTS -XX:CMSInitiatingOccupancyFraction=75" |
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| 45 | JAVA_OPTS="$JAVA_OPTS -XX:+UseCMSInitiatingOccupancyOnly" |
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| 46 | |
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| 47 | # When running under Java 7 |
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| 48 | #JAVA_OPTS="$JAVA_OPTS -XX:+UseCondCardMark" |
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| 49 | |
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| 50 | # GC logging options -- uncomment to enable |
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| 51 | # JAVA_OPTS="$JAVA_OPTS -XX:+PrintGCDetails" |
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| 52 | # JAVA_OPTS="$JAVA_OPTS -XX:+PrintGCTimeStamps" |
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| 53 | # JAVA_OPTS="$JAVA_OPTS -XX:+PrintClassHistogram" |
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| 54 | # JAVA_OPTS="$JAVA_OPTS -XX:+PrintTenuringDistribution" |
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| 55 | # JAVA_OPTS="$JAVA_OPTS -XX:+PrintGCApplicationStoppedTime" |
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| 56 | # JAVA_OPTS="$JAVA_OPTS -Xloggc:/var/log/elasticsearch/gc.log" |
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| 57 | |
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| 58 | # Causes the JVM to dump its heap on OutOfMemory. |
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| 59 | JAVA_OPTS="$JAVA_OPTS -XX:+HeapDumpOnOutOfMemoryError" |
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| 60 | # The path to the heap dump location, note directory must exists and have enough |
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| 61 | # space for a full heap dump. |
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| 62 | #JAVA_OPTS="$JAVA_OPTS -XX:HeapDumpPath=$ES_HOME/logs/heapdump.hprof" |
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