141 lines
4.0 KiB
Django/Jinja
141 lines
4.0 KiB
Django/Jinja
#jinja2: trim_blocks:False
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# {{ ansible_managed }}
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## JVM configuration
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################################################################
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## IMPORTANT: JVM heap size
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################################################################
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##
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## 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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# 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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{% if elasticsearch_jvm_xms is not none %}
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{% if elasticsearch_jvm_xms < 32000 %}
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-Xms{{ elasticsearch_jvm_xms }}m
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-Xmx{{ elasticsearch_jvm_xms }}m
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{% else %}
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-Xms32000m
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-Xmx32000m
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{% endif %}
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{% else %}
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-Xms{% if ansible_memtotal_mb < 64000 %}{{ ((ansible_memtotal_mb|int)/2)|int }}m{% else %}32000m{% endif %}
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-Xmx{% if ansible_memtotal_mb < 64000 %}{{ ((ansible_memtotal_mb|int)/2)|int }}m{% else %}32000m{% endif %}
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{% endif %}
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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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8-13:-XX:+UseConcMarkSweepGC
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8-13:-XX:CMSInitiatingOccupancyFraction=75
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8-13:-XX:+UseCMSInitiatingOccupancyOnly
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## G1GC Configuration
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# NOTE: G1 GC is only supported on JDK version 10 or later
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# to use G1GC, uncomment the next two lines and update the version on the
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# following three lines to your version of the JDK
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# 10-13:-XX:-UseConcMarkSweepGC
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# 10-13:-XX:-UseCMSInitiatingOccupancyOnly
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14-:-XX:+UseG1GC
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14-:-XX:G1ReservePercent=25
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14-:-XX:InitiatingHeapOccupancyPercent=30
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## JVM temporary directory
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-Djava.io.tmpdir=${ES_TMPDIR}
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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
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-server
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# explicitly set the stack size
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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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# turn off a JDK optimization that throws away stack traces for common
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# exceptions because stack traces are important for debugging
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-XX:-OmitStackTraceInFastThrow
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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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## 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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# specify an alternative path for heap dumps
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# ensure the directory exists and has sufficient space
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-XX:HeapDumpPath=/var/lib/elasticsearch
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# specify an alternative path for JVM fatal error logs
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-XX:ErrorFile=/var/log/elasticsearch/hs_err_pid%p.log
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## GC logging
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## JDK 8 GC logging
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# 8:-XX:+PrintGCDetails
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# 8:-XX:+PrintGCDateStamps
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# 8:-XX:+PrintTenuringDistribution
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# 8:-XX:+PrintGCApplicationStoppedTime
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# 8:-Xloggc:/var/log/elasticsearch/gc.log
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# 8:-XX:+UseGCLogFileRotation
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# 8:-XX:NumberOfGCLogFiles=32
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# 8:-XX:GCLogFileSize=64m
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# JDK 9+ GC logging
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# 9-:-Xlog:gc*,gc+age=trace,safepoint:file=/var/log/elasticsearch/gc.log:utctime,pid,tags:filecount=32,filesize=64m
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# log GC status to a file with time stamps
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# ensure the directory exists
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#-Xloggc:${loggc}
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# By default, the GC log file will not rotate.
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# By uncommenting the lines below, the GC log file
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# will be rotated every 128MB at most 32 times.
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#-XX:+UseGCLogFileRotation
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#-XX:NumberOfGCLogFiles=32
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#-XX:GCLogFileSize=128M
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