jvm11 options fix

benchmarks/data-serving/server/Dockerfile

@@ -3,6 +3,7 @@ FROM cloudsuite/cassandra:4.1.0
 RUN apt update && apt install -y --no-install-recommends python3-yaml && rm -rf /var/lib/apt/lists/*
 
 COPY docker-entrypoint.py /
+COPY jvm11-server.options /etc/cassandra/jvm11-server.options
 
 ENTRYPOINT ["/docker-entrypoint.py"]
 

benchmarks/data-serving/server/docker-entrypoint.py

@@ -43,10 +43,6 @@ def get_ip():
 if not path.exists(f"{CASSANDRA_CONFIG}/jvm-server.options.bak"):
     shutil.copy(f"{CASSANDRA_CONFIG}/jvm-server.options", f"{CASSANDRA_CONFIG}/jvm-server.options.bak")
 
-if not path.exists(f"{CASSANDRA_CONFIG}/jvm11-server.options.bak"):
-    shutil.copy(f"{CASSANDRA_CONFIG}/jvm11-server.options", f"{CASSANDRA_CONFIG}/jvm11-server.options.bak")
-
-
 # Now, modify the cassandra.yaml
 with open(f"{CASSANDRA_CONFIG}/cassandra.yaml") as f:
     config = yaml.safe_load(f)
@@ -102,41 +98,5 @@ def get_ip():
 with open(f"{CASSANDRA_CONFIG}/jvm-server.options", "w") as f:
     f.writelines(jvm_options)
 
-# Then, process the jvm11.options
-with open(f"{CASSANDRA_CONFIG}/jvm11-server.options") as f:
-    jvm11_options = f.readlines()
-
-for idx, l in enumerate(jvm11_options):
-    # Disable CMS Garbage Collection
-    if l.startswith("-XX:+UseConcMarkSweepGC"):
-        jvm11_options[idx] = ""
-    if l.startswith("-XX:+CMSParallelRemarkEnabled"):
-        jvm11_options[idx] = ""
-    if l.startswith("-XX:SurvivorRatio"):
-        jvm11_options[idx] = ""
-    if l.startswith("-XX:MaxTenuringThreshold"):
-        jvm11_options[idx] = ""
-    if l.startswith("-XX:CMSInitiatingOccupancyFraction"):
-        jvm11_options[idx] = ""
-    if l.startswith("-XX:+UseCMSInitiatingOccupancyOnly"):
-        jvm11_options[idx] = ""
-    if l.startswith("-XX:CMSWaitDuration"):
-        jvm11_options[idx] = ""
-    if l.startswith("-XX:+CMSParallelInitialMarkEnabled"):
-        jvm11_options[idx] = ""
-    if l.startswith("-XX:+CMSEdenChunksRecordAlways"):
-        jvm11_options[idx] = ""
-    if l.startswith("-XX:+CMSClassUnloadingEnabled"):
-        jvm11_options[idx] = ""
-    # Add G1 Garbage Collection
-    jvm11_options.append("-XX:+UseG1GC\n")
-    jvm11_options.append("-XX:+ParallelRefProcEnabled\n")
-    # Add PreserveFramePointer for flamegraph
-    jvm11_options.append("-XX:+PreserveFramePointer\n")
-
-# Write it back
-with open(f"{CASSANDRA_CONFIG}/jvm11-server.options", "w") as f:
-    f.writelines(jvm11_options)
-
 os.execvp("cassandra", ["cassandra", "-R", "-f"])
 

benchmarks/data-serving/server/jvm11-server.options

@@ -0,0 +1,108 @@
+###########################################################################
+#                         jvm11-server.options                            #
+#                                                                         #
+# See jvm-server.options. This file is specific for Java 11 and newer.    #
+###########################################################################
+
+#################
+#  GC SETTINGS  #
+#################
+
+
+
+### CMS Settings
+#-XX:+UseConcMarkSweepGC
+#-XX:+CMSParallelRemarkEnabled
+#-XX:SurvivorRatio=8
+#-XX:MaxTenuringThreshold=1
+#-XX:CMSInitiatingOccupancyFraction=75
+#-XX:+UseCMSInitiatingOccupancyOnly
+#-XX:CMSWaitDuration=10000
+#-XX:+CMSParallelInitialMarkEnabled
+#-XX:+CMSEdenChunksRecordAlways
+## some JVMs will fill up their heap when accessed via JMX, see CASSANDRA-6541
+#-XX:+CMSClassUnloadingEnabled
+
+
+
+### G1 Settings
+## Use the Hotspot garbage-first collector.
+-XX:+UseG1GC
+-XX:+ParallelRefProcEnabled
+
+#
+## Have the JVM do less remembered set work during STW, instead
+## preferring concurrent GC. Reduces p99.9 latency.
+#-XX:G1RSetUpdatingPauseTimePercent=5
+#
+## Main G1GC tunable: lowering the pause target will lower throughput and vise versa.
+## 200ms is the JVM default and lowest viable setting
+## 1000ms increases throughput. Keep it smaller than the timeouts in cassandra.yaml.
+#-XX:MaxGCPauseMillis=500
+
+## Optional G1 Settings
+# Save CPU time on large (>= 16GB) heaps by delaying region scanning
+# until the heap is 70% full. The default in Hotspot 8u40 is 40%.
+#-XX:InitiatingHeapOccupancyPercent=70
+
+# For systems with > 8 cores, the default ParallelGCThreads is 5/8 the number of logical cores.
+# Otherwise equal to the number of cores when 8 or less.
+# Machines with > 10 cores should try setting these to <= full cores.
+#-XX:ParallelGCThreads=16
+# By default, ConcGCThreads is 1/4 of ParallelGCThreads.
+# Setting both to the same value can reduce STW durations.
+#-XX:ConcGCThreads=16
+
+
+### JPMS
+
+-Djdk.attach.allowAttachSelf=true
+--add-exports java.base/jdk.internal.misc=ALL-UNNAMED
+--add-exports java.base/jdk.internal.ref=ALL-UNNAMED
+--add-exports java.base/sun.nio.ch=ALL-UNNAMED
+--add-exports java.management.rmi/com.sun.jmx.remote.internal.rmi=ALL-UNNAMED
+--add-exports java.rmi/sun.rmi.registry=ALL-UNNAMED
+--add-exports java.rmi/sun.rmi.server=ALL-UNNAMED
+--add-exports java.sql/java.sql=ALL-UNNAMED
+
+--add-opens java.base/java.lang.module=ALL-UNNAMED
+--add-opens java.base/jdk.internal.loader=ALL-UNNAMED
+--add-opens java.base/jdk.internal.ref=ALL-UNNAMED
+--add-opens java.base/jdk.internal.reflect=ALL-UNNAMED
+--add-opens java.base/jdk.internal.math=ALL-UNNAMED
+--add-opens java.base/jdk.internal.module=ALL-UNNAMED
+--add-opens java.base/jdk.internal.util.jar=ALL-UNNAMED
+--add-opens jdk.management/com.sun.management.internal=ALL-UNNAMED
+
+
+### GC logging options -- uncomment to enable
+
+# Java 11 (and newer) GC logging options:
+# See description of https://bugs.openjdk.java.net/browse/JDK-8046148 for details about the syntax
+# The following is the equivalent to -XX:+PrintGCDetails -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=10M
+#-Xlog:gc=info,heap*=trace,age*=debug,safepoint=info,promotion*=trace:file=/var/log/cassandra/gc.log:time,uptime,pid,tid,level:filecount=10,filesize=10485760
+
+# Notes for Java 8 migration:
+#
+# -XX:+PrintGCDetails                   maps to -Xlog:gc*:... - i.e. add a '*' after "gc"
+# -XX:+PrintGCDateStamps                maps to decorator 'time'
+#
+# -XX:+PrintHeapAtGC                    maps to 'heap' with level 'trace'
+# -XX:+PrintTenuringDistribution        maps to 'age' with level 'debug'
+# -XX:+PrintGCApplicationStoppedTime    maps to 'safepoint' with level 'info'
+# -XX:+PrintPromotionFailure            maps to 'promotion' with level 'trace'
+# -XX:PrintFLSStatistics=1              maps to 'freelist' with level 'trace'
+
+### Netty Options
+
+# On Java >= 9 Netty requires the io.netty.tryReflectionSetAccessible system property to be set to true to enable
+# creation of direct buffers using Unsafe. Without it, this falls back to ByteBuffer.allocateDirect which has
+# inferior performance and risks exceeding MaxDirectMemory
+-Dio.netty.tryReflectionSetAccessible=true
+
+### Preserve Frame pointer for flamegraph
+-XX:+PreserveFramePointer
+
+# The newline in the end of file is intentional
+
+