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72 lines
1.8 KiB
Plaintext
72 lines
1.8 KiB
Plaintext
## You should always set the min and max JVM heap
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## size to the same value. For example, to set
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## the heap to 4 GB, set:
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##
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## -Xms4g
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## -Xmx4g
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##
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## See https://www.elastic.co/guide/en/elasticsearch/reference/current/heap-size.html
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## for more information
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##
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################################################################
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# Xms represents the initial size of total heap space
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# Xmx represents the maximum size of total heap space
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-Xms2g
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-Xmx2g
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################################################################
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## Expert settings
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################################################################
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##
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## All settings below this section are considered
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## expert settings. Don't tamper with them unless
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## you understand what you are doing
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##
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################################################################
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## GC configuration
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-XX:+UseConcMarkSweepGC
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-XX:CMSInitiatingOccupancyFraction=75
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-XX:+UseCMSInitiatingOccupancyOnly
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## optimizations
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# pre-touch memory pages used by the JVM during initialization
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-XX:+AlwaysPreTouch
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## basic
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# force the server VM (remove on 32-bit client JVMs)
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-server
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# explicitly set the stack size (reduce to 320k on 32-bit client JVMs)
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-Xss1m
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# set to headless, just in case
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-Djava.awt.headless=true
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# ensure UTF-8 encoding by default (e.g. filenames)
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-Dfile.encoding=UTF-8
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# use our provided JNA always versus the system one
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-Djna.nosys=true
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# use old-style file permissions on JDK9
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-Djdk.io.permissionsUseCanonicalPath=true
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# flags to configure Netty
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-Dio.netty.noUnsafe=true
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-Dio.netty.noKeySetOptimization=true
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-Dio.netty.recycler.maxCapacityPerThread=0
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# log4j 2
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-Dlog4j.shutdownHookEnabled=false
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-Dlog4j2.disable.jmx=true
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-Dlog4j.skipJansi=true
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## heap dumps
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# generate a heap dump when an allocation from the Java heap fails
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# heap dumps are created in the working directory of the JVM
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-XX:+HeapDumpOnOutOfMemoryError
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