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101 lines
2.6 KiB
Plaintext
101 lines
2.6 KiB
Plaintext
## 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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-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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# disable calls to System#gc
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-XX:+DisableExplicitGC
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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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# 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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# flags to keep Netty from being unsafe
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-Dio.netty.noUnsafe=true
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-Dio.netty.noKeySetOptimization=true
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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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# 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=${heap.dump.path}
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## GC logging
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#-XX:+PrintGCDetails
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#-XX:+PrintGCTimeStamps
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#-XX:+PrintGCDateStamps
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#-XX:+PrintClassHistogram
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#-XX:+PrintTenuringDistribution
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#-XX:+PrintGCApplicationStoppedTime
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# log GC status to a file with time stamps
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# ensure the directory exists
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#-Xloggc:${loggc}
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# Elasticsearch 5.0.0 will throw an exception on unquoted field names in JSON.
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# If documents were already indexed with unquoted fields in a previous version
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# of Elasticsearch, some operations may throw errors.
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#
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# WARNING: This option will be removed in Elasticsearch 6.0.0 and is provided
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# only for migration purposes.
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#-Delasticsearch.json.allow_unquoted_field_names=true
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