From 93ecdb789e55f4e9c009b8fd190adbd0a599d634 Mon Sep 17 00:00:00 2001
From: ai-dev <ai-dev@fgitlab.my.to>
Date: Mon, 22 Sep 2025 00:16:21 +0200
Subject: [PATCH] test

---
 .../rootfs/usr/bin/configure-opensearch       | 124 +++++++++++++++++-
 1 file changed, 120 insertions(+), 4 deletions(-)

diff --git a/opensearch-master/rootfs/usr/bin/configure-opensearch b/opensearch-master/rootfs/usr/bin/configure-opensearch
index dde2964..6314363 100644
--- a/opensearch-master/rootfs/usr/bin/configure-opensearch
+++ b/opensearch-master/rootfs/usr/bin/configure-opensearch
@@ -39,16 +39,113 @@ ADMIN_PASSWORD=$(read_config 'admin_password')
 export OPENSEARCH_INITIAL_ADMIN_PASSWORD="${ADMIN_PASSWORD}"
 export DISCOVERY_TYPE="multi-node"
 
-# Set heap size using environment variable (better approach)
+# Set heap size using environment variable
 CLEAN_HEAP_SIZE=$(echo "$HEAP_SIZE" | tr -d ' ' | grep -oE '[0-9]+[mg]')
 if [ -z "$CLEAN_HEAP_SIZE" ]; then
     CLEAN_HEAP_SIZE="2g"
 fi
 export OPENSEARCH_JAVA_OPTS="-Xms${CLEAN_HEAP_SIZE} -Xmx${CLEAN_HEAP_SIZE}"
 
-# Remove any existing heap configuration to avoid duplicates
-rm -f /usr/share/opensearch/config/jvm.options.d/heap.options
-rm -f /usr/share/opensearch/config/jvm.options
+# Create jvm.options directory if it doesn't exist
+mkdir -p /usr/share/opensearch/config/jvm.options.d
+
+# Create or restore the main jvm.options file if it's missing
+if [ ! -f "/usr/share/opensearch/config/jvm.options" ]; then
+    # Create a basic jvm.options file
+    cat > /usr/share/opensearch/config/jvm.options << 'EOF'
+## 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/latest/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
+
+-Xms2g
+-Xmx2g
+
+################################################################
+## 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
+-XX:+UseConcMarkSweepGC
+-XX:CMSInitiatingOccupancyFraction=75
+-XX:+UseCMSInitiatingOccupancyOnly
+
+## optimizations
+
+# disable calls to System#gc
+-XX:+DisableExplicitGC
+
+# pre-touch memory pages used by the JVM during initialization
+-XX:+AlwaysPreTouch
+
+## basic
+
+# force the server VM (remove on 32-bit client JVMs)
+-server
+
+# explicitly set the stack size
+-Xss1m
+
+# set to headless, just in case
+-Djava.awt.headless=true
+
+# ensure UTF-8 encoding by default (e.g. filenames)
+-Dfile.encoding=UTF-8
+
+# use our provided JNA always versus the system one
+-Djna.nosys=true
+
+# turn off a JDK optimization that throws away stack traces for common
+# exceptions because stack traces are important for debugging
+-XX:-OmitStackTraceInFastThrow
+
+# flags to configure Netty
+-Dio.netty.noUnsafe=true
+-Dio.netty.noKeySetOptimization=true
+-Dio.netty.recycler.maxCapacityPerThread=0
+
+# log4j 2
+-Dlog4j.shutdownHookEnabled=false
+-Dlog4j2.disable.jmx=true
+
+# enable JDK 9+ usage and allow the use of the bundle JDK
+--add-opens=java.base/java.io=ALL-UNNAMED
+-Des.netty.tryReflectionSetAccessible=true
+
+-Djava.locale.providers=COMPAT
+
+# enable the module path
+--module-path=${OPENSEARCH_HOME}/lib/*
+
+# allow access to the jdk.unsupported module for sun.misc.Unsafe
+--add-modules=jdk.unsupported
+
+# allow access to the jdk.incubator.vector module for VectorUtil
+--add-modules=jdk.incubator.vector
+EOF
+fi
 
 # Export variables for envsubst
 export CLUSTER_NAME="${CLUSTER_NAME:-hass-opensearch-cluster}"
@@ -75,5 +172,24 @@ if [ -n "$PLUGINS_JSON" ] && [ "$PLUGINS_JSON" != "[]" ] && command -v bashio >/
     fi
 fi
 
+# Try to set vm.max_map_count if we have privileges
+if [ -w /proc/sys/vm/max_map_count ]; then
+    echo "Setting vm.max_map_count to 262144"
+    echo 262144 > /proc/sys/vm/max_map_count
+elif command -v sysctl >/dev/null 2>&1; then
+    echo "Trying to set vm.max_map_count with sysctl"
+    sysctl -w vm.max_map_count=262144 || true
+fi
+
+# Check current value
+if [ -r /proc/sys/vm/max_map_count ]; then
+    CURRENT_MAP_COUNT=$(cat /proc/sys/vm/max_map_count)
+    echo "Current vm.max_map_count: $CURRENT_MAP_COUNT"
+    if [ "$CURRENT_MAP_COUNT" -lt 262144 ]; then
+        echo "WARNING: vm.max_map_count is too low ($CURRENT_MAP_COUNT), should be at least 262144"
+        echo "You may need to run: sudo sysctl -w vm.max_map_count=262144 on the host system"
+    fi
+fi
+
 # Start OpenSearch
 exec /usr/share/opensearch/bin/opensearch
\ No newline at end of file