opensearch-project · lyind · Oct 20, 2025
@@ -1,93 +1,4 @@
 ## JVM configuration
-
-################################################################
-## IMPORTANT: JVM heap size
-################################################################
-##
-## You should always set the min and max JVM heap
-## size to the same value. For example, to set
-## the heap to 4 GB, set:
-##
-## -Xms4g
-## -Xmx4g
-##
-## See https://opensearch.org/docs/opensearch/install/important-settings/
-## for more information
-##
-################################################################
-
-# Xms represents the initial size of total heap space
-# Xmx represents the maximum size of total heap space
-
--Xms${heap.min}
--Xmx${heap.max}
-
-################################################################
-## Expert settings
-################################################################
-##
-## All settings below this section are considered
-## expert settings. Don't tamper with them unless
-## you understand what you are doing
-##
-################################################################
-
-## GC configuration
-8-10:-XX:+UseConcMarkSweepGC
-8-10:-XX:CMSInitiatingOccupancyFraction=75
-8-10:-XX:+UseCMSInitiatingOccupancyOnly
-
-## G1GC Configuration
-# NOTE: G1GC is the default GC for all JDKs 11 and newer
-11-:-XX:+UseG1GC
-# See https://github.com/elastic/elasticsearch/pull/46169 for the history
-# behind these settings, but the tl;dr is that default values can lead
-# to situations where heap usage grows enough to trigger a circuit breaker
-# before GC kicks in.
-11-:-XX:G1ReservePercent=25
-11-:-XX:InitiatingHeapOccupancyPercent=30
-
-## JVM temporary directory
--Djava.io.tmpdir=${OPENSEARCH_TMPDIR}
-
-## heap dumps
-
-# generate a heap dump when an allocation from the Java heap fails
-# heap dumps are created in the working directory of the JVM
--XX:+HeapDumpOnOutOfMemoryError
-
-# specify an alternative path for heap dumps; ensure the directory exists and
-# has sufficient space
-${heap.dump.path}
-
-# specify an alternative path for JVM fatal error logs
-${error.file}
-
-## JDK 8 GC logging
-8:-XX:+PrintGCDetails
-8:-XX:+PrintGCDateStamps
-8:-XX:+PrintTenuringDistribution
-8:-XX:+PrintGCApplicationStoppedTime
-8:-Xloggc:${loggc}
-8:-XX:+UseGCLogFileRotation
-8:-XX:NumberOfGCLogFiles=32
-8:-XX:GCLogFileSize=64m
-
-# JDK 9+ GC logging
-9-:-Xlog:gc*,gc+age=trace,safepoint:file=${loggc}:utctime,pid,tags:filecount=32,filesize=64m
-
-# JDK 20+ Incubating Vector Module for SIMD optimizations;
-# disabling may reduce performance on vector optimized lucene
-20-:--add-modules=jdk.incubator.vector
-
-# See please https://bugs.openjdk.org/browse/JDK-8341127 (openjdk/jdk#21283)
-23:-XX:CompileCommand=dontinline,java/lang/invoke/MethodHandle.setAsTypeCache
-23:-XX:CompileCommand=dontinline,java/lang/invoke/MethodHandle.asTypeUncached
-
-21-:-javaagent:agent/opensearch-agent.jar
-21-:--add-opens=java.base/java.nio=org.apache.arrow.memory.core,ALL-UNNAMED
-
-# For cases with high memory-mapped file counts, a lower value can improve stability and
-# prevent issues like "leaked" maps or performance degradation. A value of 1 effectively
-# disables the shared Arena pooling and uses a confined Arena for each MMapDirectory
--Dorg.apache.lucene.store.MMapDirectory.sharedArenaMaxPermits=1
+#
+# See files in jvm.options.d
+#
@@ -0,0 +1,23 @@
+################################################################
+## Expert settings
+################################################################
+##
+## All settings below this section are considered
+## expert settings. Don't tamper with them unless
+## you understand what you are doing
+##
+################################################################
+
+## heap dumps
+
+# generate a heap dump when an allocation from the Java heap fails
+# heap dumps are created in the working directory of the JVM
+-XX:+HeapDumpOnOutOfMemoryError
+
+# specify an alternative path for heap dumps; ensure the directory exists and
+# has sufficient space
+${heap.dump.path}
+
+# specify an alternative path for JVM fatal error logs
+${error.file}
+
@@ -0,0 +1,25 @@
+################################################################
+## Expert settings
+################################################################
+##
+## All settings below this section are considered
+## expert settings. Don't tamper with them unless
+## you understand what you are doing
+##
+################################################################
+
+## GC configuration
+8-10:-XX:+UseConcMarkSweepGC
+8-10:-XX:CMSInitiatingOccupancyFraction=75
+8-10:-XX:+UseCMSInitiatingOccupancyOnly
+
+## G1GC Configuration
+# NOTE: G1GC is the default GC for all JDKs 11 and newer
+11-:-XX:+UseG1GC
+# See https://github.com/elastic/elasticsearch/pull/46169 for the history
+# behind these settings, but the tl;dr is that default values can lead
+# to situations where heap usage grows enough to trigger a circuit breaker
+# before GC kicks in.
+11-:-XX:G1ReservePercent=25
+11-:-XX:InitiatingHeapOccupancyPercent=30
+
@@ -0,0 +1,22 @@
+################################################################
+## IMPORTANT: JVM heap size
+################################################################
+##
+## You should always set the min and max JVM heap
+## size to the same value. For example, to set
+## the heap to 4 GB, set:
+##
+## -Xms4g
+## -Xmx4g
+##
+## See https://docs.opensearch.org/latest/install-and-configure/install-opensearch/index/
+## for more information
+##
+################################################################
+
+# Xms represents the initial size of total heap space
+# Xmx represents the maximum size of total heap space
+
+-Xms${heap.min}
+-Xmx${heap.max}
+
@@ -0,0 +1,23 @@
+################################################################
+## Expert settings
+################################################################
+##
+## All settings below this section are considered
+## expert settings. Don't tamper with them unless
+## you understand what you are doing
+##
+################################################################
+
+## JDK 8 GC logging
+8:-XX:+PrintGCDetails
+8:-XX:+PrintGCDateStamps
+8:-XX:+PrintTenuringDistribution
+8:-XX:+PrintGCApplicationStoppedTime
+8:-Xloggc:${loggc}
+8:-XX:+UseGCLogFileRotation
+8:-XX:NumberOfGCLogFiles=32
+8:-XX:GCLogFileSize=64m
+
+# JDK 9+ GC logging
+9-:-Xlog:gc*,gc+age=trace,safepoint:file=${loggc}:utctime,pid,tags:filecount=32,filesize=64m
+
@@ -0,0 +1,26 @@
+################################################################
+## Expert settings
+################################################################
+##
+## All settings below this section are considered
+## expert settings. Don't tamper with them unless
+## you understand what you are doing
+##
+################################################################
+
+# JDK 20+ Incubating Vector Module for SIMD optimizations;
+# disabling may reduce performance on vector optimized lucene
+20-:--add-modules=jdk.incubator.vector
+
+# See please https://bugs.openjdk.org/browse/JDK-8341127 (openjdk/jdk#21283)
+23:-XX:CompileCommand=dontinline,java/lang/invoke/MethodHandle.setAsTypeCache
+23:-XX:CompileCommand=dontinline,java/lang/invoke/MethodHandle.asTypeUncached
+
+21-:-javaagent:agent/opensearch-agent.jar
+21-:--add-opens=java.base/java.nio=org.apache.arrow.memory.core,ALL-UNNAMED
+
+# For cases with high memory-mapped file counts, a lower value can improve stability and
+# prevent issues like "leaked" maps or performance degradation. A value of 1 effectively
+# disables the shared Arena pooling and uses a confined Arena for each MMapDirectory
+-Dorg.apache.lucene.store.MMapDirectory.sharedArenaMaxPermits=1
+
@@ -0,0 +1,13 @@
+################################################################
+## Expert settings
+################################################################
+##
+## All settings below this section are considered
+## expert settings. Don't tamper with them unless
+## you understand what you are doing
+##
+################################################################
+
+## JVM temporary directory
+-Djava.io.tmpdir=${OPENSEARCH_TMPDIR}
+