Newer Than: Search this thread only; Search this forum only. 3gb], new bytes reserved: [2896/2. You can change the Xms and Xmx to be 3G. Based on this blog post, I got it working with the following JVM options: Best practice for JVM Tuning with G1 GC. The amount of memory saved will depend on the pack, in version 1. After lagging from 20 to all players get kicked "due to keepalive timeout" or "Timed out". Os - debian 10, java version - 8 build 281-b09, core - paper 1. The text was updated successfully, but these errors were encountered:This is a place to get help with AHK, programming logic, syntax, design, to get feedback, or just to rubber duck. As for versions which supported Java 8, Java 9 introduced a ton of backwards compatibility issues and muddied the waters of using later versions of Java. JDK; JDK-6698009; CMS is not collecting weak references when -XX:+ParallelRefProcEnabledI found this article on the web ` If you use the Java™ virtual machine (JVM) AggressiveOpts option with a Java Platform Enterprise Edition (Java EE) application that contains Enterprise JavaBeans (EJB) files, the JVM might crash. Show All bool ccstr ccstrlist double int intx size_t uint uint64_t uintx. We recommend using the latest snapshot builds to replicate the issue as bugs are constantly being fixed in the master branch Steps to reproduce the issue Please include bot. 2]. Paper. zip. Issues. . jar. I did an ls on the java and it says java-1. 9. 시놀로지 나스 패키지 - Docker 설치 & 레지스트리 검색 창에 minecraft 검색 후 목록에서 itzg/minecraft-server 더블 클릭. Display results as threadsG1GC remark phase is taking too long. Article Number 000030656 Applies To RSA Product Set: RSA Identity Governance & Lifecycle RSA Version/Condition: All Issue If an AFX server is started as the root user, problems can occur that will prevent correct management of the server and its connectors. The Eden and survivor heap is forced to decrease to the minimum (5% of the total heap) and so garbage collection because more and more frequent. . 0. {"payload":{"allShortcutsEnabled":false,"fileTree":{"minikube":{"items":[{"name":"hybrid","path":"minikube/hybrid","contentType":"directory"},{"name":"postgres","path. JDK; JDK-6662086; 6u4+, 7b11+: CMS never clears referents when -XX:+ParallelRefProcEnabledI was curious about this topic, because when searching about this topic I wanted to check that JVM was better to run a minecraft server but I didn't find any, so I made some tests with the following JDK: - AdoptOpenJDK 8 OpenJ9. formatMsgNoLookups=true -XX:+UseG1GC -XX:+ParallelRefProcEnabledHow do I specify another type of garbage collector for a dockerized Solr7? My docker startup command is as follows: docker run -d --restart always --name solrcloud -p 8983:8983 --net host myrepo. io, download the server jar you want, make a new text document on your desktop and edit it. They are common to all JVM garbage collectors. 5GHZ) 32GB DDR4 Ram 2x 128GB SSD in Raid1 1GBiT Uplink Before i move the Gameservers to new System i want to optimize the Server as good as i can!Last week a major vulnerability in the Log4J2 library was widely reported in the tech community. That's good, because most of the time is just sweeping out the trash. By default, this option is. 12. 5. You might also want to change the default region to your region, check below. FunPattern3226 • 1 yr. For example, I have my server files in a folder called “Minecraft Server” so adjust that line for your specific server. Examples: To turn on the detailed logs for Garbage Collector: java - XX:+ ParallelRefProcEnabled MainClass . When doing this, you do not need to rename your jar file like what is mentioned below. Introduction. 4 Direwolf20 pack it reduces the memory usage (after GC) on. ZGC stands for Z Garbage Collector, a garbage collector, put simply, is a thing that frees up memory for further use within your server. Connect and share knowledge within a single location that is structured and easy to search. Pastebin. JvmInspector is standalone tool + Nagios wrapper plugin (check_jvm) that dumps various properties from locally running JVMs. jar. Search titles only; Posted by Member: Separate names with a comma. I believe problem is related to inappropriate JVM params. ohhhhhh. Step 4 - Download and install Spigot. 00s Real=0. Sorted by: 1. Which, according to hotspot-runtime-dev discussions, will prevent some performance monitoring command line tools from discovering running VMs automagically. Hi Guys, I have noticed some chokes = slowness on single node jenkins instance. log 2 -XX:+PrintGCDateStamps 3 -XX:+PrintGCDetails 4 -XX:+PrintTenuringDistribution 5 -XX:+PrintAdaptiveSizePolicy. In the Monitor column, select JVM and click View . ref-proc is the major contributor) it parallelizes the reference processing, reducing Young and Tenured GC times. We can control the degree of parallelization when using this garbage collector. java. By including the -XX:+ParallelRefProcEnabled flag and changing the -XX:ReferencesPerThread flag value. 120 online, spark:. We also see the JNDI exploit strings in the path parameters. {"payload":{"allShortcutsEnabled":false,"fileTree":{"config/samples":{"items":[{"name":"beta","path":"config/samples/beta","contentType":"directory"},{"name":"cluster. > > A note was just recently added to the Lucene wiki,. 0 (build 13) version. The following represents an example of the above settings. Server-side workloads like chunk generation can get a 20%+ boost while using it! These are some GraalVM flags I put together with the help of this and this. The amount of memory saved will depend on the pack, in version 1. 5-7 gigs of memory usage it would become very CPU intensive and TPS would just drop to the floor. ZGC is a new one being "production-ready" starting Java 15 (the latest JDK version) ZGC is also a concurrent garbage collector focusing on latency instead of G1 being a tradeoff between latency and throughput. These notes describe important changes, enhancements, removed APIs and features, deprecated APIs and features, and other information about JDK 17 and Java SE 17. You can still use the current builds on 1. To enable Garbage Collection logs, the below properties should be defined: 1 -Xloggc:<node temporary directory>/gc_node_%t. On loading of file having 546M, solr-8. hello, today i bought a lowhosting server and tried to install spigot or paper on it, but it doesn't work. additional. 1 / 1. 让 JVM 动态感知 cgroup. (Etc. Posting on a closed issue saying the crash still exists will prompt us to investigate and reopen it once we confirm your report. Tuning G1 GC for Cassandra is too complicated, but it can make a big difference in cluster health. create a new text document and call it. lang. 19. Learn more about Teams +ParallelRefProcEnabled: Optimizes the GC process to use multiple threads for weak reference checking. 2 then. -XX:+ParallelRefProcEnabled - ZGC uses a complex approach to cleaning up references. s optimize your server accordingly to pufferfish's guide and restart your server after a while. These command-line tools won’t represent a full-fat benchmark (such as Open Messaging ), but can be used as building blocks to produce one. Using sbt 1. The issue was first to believed to be caused by G1GC itself or the used Runtime GraalVM 21. deleted all. #9 Bobcat00, May 27, 2021. Indeed it seems from these results that it produces some of the worst results with ZGC. Inside, write @Echo off java -Xms128M -Xmx5120M -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch . jar --nogui . Step 2 - Install Java and Git. This page does not duplicate the descriptions provided by the. . we are currently running AMP 2. Then run chmod +x start. xml file (same folder as jenkins. My test server is a 4 core/8 gb/8 GB swap. 0_291injava. Systemd ignores notify PID when similar service is running. The login detail and full damp in comments. It responded with (…To avoid swapping of RAM to disk you also need to turn off swap (see for example this ). 13+ version are actually very bad optimized for servers. 如果cpu核心数目少于等于8，则GC线程数量和CPU数一致. -XX:+UseConcMarkSweepGC will ruin the previous 2 working together. 54=-XX:+ParallelRefProcEnabled wrapper. 04 and the service seems to start alright, but I cannot s. Still there were seven pauses in two minutes. jar file, where the <version_of_solr> corresponds to the solr version your SAP Commerce is running on. Connect and share knowledge within a single location that is structured and easy to search. Tags: Learn more. In the Monitor column, select JVM and click View . Set 3 just didn´t work for me, server started with 11. In some cases, the descriptions provide links to additional detailed information about an issue or a change. Setting this value to 0 will tell the G1 garbage collector to always use the number of threads specified by the -XX:ParallelGCThreads flag value. Remark phase is single-threaded by default unless this. 序言：一个原本活蹦乱跳的男人离奇死亡，死状恐怖，灵堂内的尸体忽然破棺而出，到底是诈尸还是另有隐情，我是刑警宁泽，带. ago. * Loaded classes. check_jvm checks various properties of locally running JVMs and returns performance data. The -Xmx flag set the max heap size to a fixed size. 7. To further tune your memory usage. 3. This information includes: * Heap & non-heap memory. Description: OpenJDK flags ReferencesPerThread and ParallelRefProcEnabled Solution Unverified - Updated 2021-09-24T21:58:45+00:00 - English See full list on docs. I’ve recently set up a 1. No logs generated. -XX:+ParallelRefProcEnabled 默认为false，并行的处理Reference对象，如WeakReference，除非在GC log里出现Reference处理时间较长的日志，否则效果不会很明显。-XX:+CMSClassUnloadingEnabled 在CMS中清理永久代中的过期的Class而不等到Full GC，JDK7默认关闭而JDK8打开。看自己情况，比如有. 19. To exploit log4shell, we initiated a HTTP request against our target system, by including the JNDI exploit strings in the HTTP URL path. 최적화 버킷의 기준은 Paper 및 Paper 기반 포크입니다. 0. Today i got out of memory title, but i had enough free ram (about 800mb). Random high Ref Proc While using G1GC. 0, I would recommend Java 11. C:Program FilesJavajre1. Go to the launcher. Note 2: If you're using the CurseForge launcher, make sure to go to the "versions" tab and select the latest version of Entity Culling, as by default it downloads the Fabric version (for whatever reason), and that crashes the game. * Loaded classes. 5gigs of ram usage and kept going up. What I've end up with was that: -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX. java. jar. 4) and having trouble with RAM usage causing my server to suddenly stop working. Recommend just letting ZGC manage this and removing the flag. Once the WebUI has refreshed, go to your RL Craft server. 0 of the 1. jar --nogui. Not sure I can recommend running any Solr version below 6. jar. I have 8GB RAM and my server runs on Linux and when I start the server, my ram is 3GB, but when someone joins (around 3-5 players) the RAM usage increases until it reaches 8GB ram, and after it reaches 8GB my server. 5 works fine with 3 GB of heap space and 12+ players. 0-amazon-correto. A basic bash startup script with aikar's flag for starting Minecraft servers. You could try adding something like -XX:ParallelGCThreads=3 to see if it helps. Symptoms: High p99 read/write latencies (because of long GC pauses) High CPU causing lower read throughput (because of low GC throughput) Dropped mutations (because of full GC collections on. -XX:-UseAdaptiveSizePolicy and -XX:+ParallelRefProcEnabled are parallels to is a variant to -XX:G1NewSizePercent=20. 序言：一个原本活蹦乱跳的男人离奇死亡，死状恐怖，灵堂内的尸体忽然破棺而出，到底是诈尸还是另有隐情，我是刑警宁泽，带. 8 seconds. 53 MB/s & 522 KB/s. Os - debian 10, java version - 8 build 281-b09, core - paper 1. exe -Xms2048m -Xmx4096m -jar spigot-1. 1. It aims to fix inconsistencies between gameplay and mechanics. Search titles only; Posted by Member: Separate names with a comma. . From what I understand this means the server will always use 2GB of RAM but can take up to 6GB if it needs it. papermc. install. Unzip this on your build server, keep the path where you extracted to for step 5. I thought it is something related to Bluetooth, so I turned it off but still got the same output. 19-latest forge profile and have the 1. MrNeeonx said: ↑. At the time of writing: jdk-11. 12. For those. Of course, this isn’t the fastest option, so I wanted to make some changes to the server. 日本核电站爆炸内幕. Thank you to u/4P5mc for bringing Aikar's JVM Arguments to my attention. 0injava -XX:+PrintFlagsFinal GarbageCollection [Global flags]. 8kb] Object creation & promotion rate: 132. Search titles only; Posted by Member: Separate names with a comma. First of all the performance of zgc - it is damn fast - gc collection takes sub-millisecond range. x for a while now without issues. [18:17:20 WARN]: java. Setting initial and minimum heap size. Since the introduction of this feature in G1 in JDK 11 we have not heard. Note that SAP Commerce also supports multiple Solr. Since: Starting from JDK 6. colab import drive. Hello, my cpanel server did the latest update automatically, and how it has the cPanel & WHM 64. Create an account or sign in to comment. log 2 -XX:+PrintGCDateStamps 3 -XX:+PrintGCDetails 4 -XX:+PrintTenuringDistribution 5 -XX:+PrintAdaptiveSizePolicy. The fourth column shows the flag default/applied value, The fifth one shows category. RuntimeException: Server attempted to load chunk saved with newer version of minecraft! 2730 > 2586 Looks like you downgraded your server version, you can either delete the current world or change the server's version back to a newer one To run the proxy, simply start it up like any other Java application. 1 Answer. 18. 引用处理：主要针对软引用、弱引用、虚引用、final引用、JNI引用；当占用时间过多时，可选择使用参数-XX:+ParallelRefProcEnabled激活多线程引用处理 在年轻代收集中，Eden分区存活的对象将被拷贝到Survivor分区；原有Survivor分区存活的对象，将根据对象的年龄而晋升. 예전에는 버킷을 소개하였습니다. ZGC supports heap sizes from 8MB to 16TB. 0 VM to: +ParallelRefProcEnabled crashes on single core platform Teams. and save in the folder. If it worked, you should now receive a console similar to the output in the next section. Well, I eventually ended up finding a solution. In some cases, the descriptions provide links to additional detailed information about an issue or a change. Only GraalVM Enterprise Edition comes with the full set of optimizations. I'm using the following configuration: -Xms250m -Xmx250m -XX:+PrintGCDetails . -Xms12G -Xmx12G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions . check in the panel if you can change java version or contact them to do so. Even then remember that things like Java GC, CPU speed, memory speed, and having the index pre-warmed. jar #zip that folder. [ ] import os. It is worth noting that this option doesn't do very much and hasn't done for years. Use of -XX:+ParallelRefProcEnabled flag decreased the pause time of PhantomReference to 0. To control the degree of parallelism, i. In short, try the -XX:+ParallelRefProcEnabled switch. Step 4 - Download and install Spigot. Click the installations button at the top. Please note that PowerNukkit is not handled by Cloudburst's staff and is provided with love but without warranty. jar. then copy the contents of the RL Server from where you first launched it to that directory. Code. Source Code. /bin/spark-submit \ --class <main-class> \ --master <master-url> \ --deploy-mode <deploy-mode> \ --conf <key>=<value> \. You may need to refresh the WebUI after its finished copying over. Step 8 -. According to the Spark Documentation on Launching Application with spark-submit the spark-submit command has the following syntax: . The G1GC old generation committed heap goes up over time (about 5 to 6 days on production) but the old generation used heap does not. . -XX:+UseG1GC # ## Have the JVM do less remembered set work during STW. RAM - 8GB. 5gb], real usage: [53028224688/49. - AdoptOpenJDK 11 OpenJ9. These notes describe important changes, enhancements, removed APIs and features, deprecated APIs and features, and other information about JDK 17 and Java SE 17. tickChildren is your first issue. WorkspaceLocatorImpl. A common set of GC flags is Aikars flags, but they have their limits since as good as they may be, the GC still has. You signed out in another tab or window. Performance Tools. jar or where your server file is and run: java -Xmx (Maximum Memory you want) (G/M) -Xms128M -jar (Spigot Jar Name). There are lots of knobs and buttons in Solr and Lucene and your instance that need to be tweaked to help ensure your entire index is in memory. First, If your server has 8gb of ram you should assign to your minecraft server 6 or 7 gb of ram. +ParallelRefProcEnabled - Optimizes the GC process to use multiple threads for weak reference checking. When a player joins, its a new entity that is being spawned into the world, which uses processing power and ram. RuntimeException: Server attempted to load chunk saved with newer version of minecraft! 2730 > 2586 Looks like you downgraded your server version, you can either delete the current world or change the server's version back to. It aims to fix inconsistencies between gameplay and mechanics. I use VDS with such parameters: 8gb ram, 2x core i7-8700k (4. I used to make a difference in early versions of Java 6 as it had leading edge optimisations included, but over time these became the default. Aikar flags seen here Aikar's Flags | PaperMC Documentation. It turns out that many of the options recommended in the cloudbees post are specific to Java 8, and not compatible with Java 11. Java recommendation for Solr. - AdoptOpenJDK 8 HotSpot. G1RSetUpdatingPauseTimePercent=5: Default is 10% of time spent during pause updating Rsets, reduce this to 5% to make more of it concurrent to reduce pause durations. Reference processing isn’t usually a big deal for Cassandra, but in some workloads it does start to show up in the GC logs. Pastebin. I haven't been able to benchmark it myself by lack. Using Aikar Flags is relatively simple and only requires a few adjustments depending on what brand of server is in use and how much memory (RAM) is allocated to the server instance. 0. The change improves this phase of the garbage collection pause significantly on machines with more. 56=-XX:InitiatingHeapOccupancyPercent=70 Nat. Type. Currently using network-compression-threshold at 256, seems to be the best setting. From what I understand this means the server will always use 2GB of RAM but can take up to 6GB if it needs it. 5/24/2018: Added -XX:+ParallelRefProcEnabled. According to G1GC documentation, the ideal region count is 2048, so 16 MB regions were perfect for a 32 GB heap. I have followed the tutorial for Ubuntu 20. Then /tmp/hsperfdata* won't be written. 然后就想到应该和容器的资源限制有关——jvm可能无法. For optimal user experience, it is very important to serve these requests with low latency. Click on the version menu and find quilt (You could optionally edit the quilt one) Set the directory for the game (Leave it if you just want to keep it in . モジュール化やProject PortlaによりGCを限定したビルドが作成可能に. e. Can you show us your startup script? There are arguments such as -Xms3g -Xmx3g that you can use to specify minumum and maximum RAM used (the number here 3g means 3 GB). Here's the generic unit file: [Unit] Description=<description> After=network. 10/10 game. 0 through 9. sh and then . Thus, to execute forge on Java 8, you don't want to execute the plain java command, since that is java 15. By including the -XX:+ParallelRefProcEnabled flag and changing the -XX:ReferencesPerThread flag value. At the time of writing: jdk-11. This page does not duplicate the descriptions provided by the. Use the below command line options to get better performance in Minecraft garbage collection. I very highly recommend you check out Aikar's website, there are many more optimizations you can make with JVM Arguments. In FileZilla, go to your directory to where your Minecraft servers are located. Sorry for my bad English After I press Activate button, it just shows me the "Start" button and doesn't start even if I press the start button again tho So I tried Hibernating the server in the Danger section and activating again several times but it doesn't work Every time I press the start butt. Article Number 000039958 Applies To RSA Product Set: RSA Identity Governance & Lifecycle RSA Version/Condition: 7. Teams. The key problem seems to be around the task queue implementation rather than the actual work itself. WORK AROUND Do not use -XX:+ParallelRefProcEnabled when running on a single core platform (or prset). forgot to add that your main problems are pretty much with any mobs ticktime. x you can use java 16. Notifications. The latest builds target 1. . The CMD column present in both of these outputs will help in the decision. 1 Answer. Fork 31. Last updated Oct 16, 2023. I use VDS with such parameters: 8gb ram, 2x core i7-8700k (4. target [Service] Type=notify NotifyAccess=all ExecStart=<Path to start script> ExecStop=<path. Delete unneeded files/plugins from your server and try starting it up then. In Wireshark pcap capture we see the HTTP request message resulting from the below curl command. These are my exact settings: javaOptions in Universal ++= Seq ( "-J-server", "-Djava. Pastebin. Over the last 15 years, he has been working as a software architect on Java, BPM, document management and electronic signatures. Okay, much better: some improvement may be expected from a 30% smaller heap, but not as much as we’ve seen. . Key stats: Throughput. 4 Direwolf20 pack it reduces the memory usage (after GC) on. Pause times are independent of heap size that is being used. Unzip this on your build server, keep the path where you extracted to for step 5. Teams. GraalVM is a new Java VM from Oracle that can improve the performance of modded and vanilla Minecraft. Create a shortcut to launcher-first. txt file, name it start and inside. -XX:+ParallelRefProcEnabled-XX:ReferencesPerThread=1000-XX:ReferencesPerThreadによって並列度が決まります。 N 個の参照オブジェクトごとに1つのスレッドがReference Processingのサブフェーズに追加され、スレッド数は-XX:ParallelGCThreadsで制限されます。 Create an account or sign in to comment. /var/games/minecraft/servers/ nameofserver. Improve this answer. This shows the following heap usage information: ZGC对MC原版服务端的优化探索. Step 6 - Configure Spigot as a service. The resulting logs can then be analysed in a specialized tool such as the GCMV plugin for Eclipse. After a day we're already at 97% an will stay there until the next crash. Not sure why this isn’t default. The start memory. 1" they have raised OpenGL performance by up to 92%, even for really old cards. Syntax: java -XX:+ParallelRefProcEnabled MainClass . ":=" indicates that the flag was set to that value either by the user or by JVM optimization ( The process of Ergonomics ). ParallelRefProcEnabled Option in JVM. 19. You may want to optimize your java settings. Set ParallelRefProcEnabled to true by default and remove the special handling in Parallel GC so that it also uses the same ergonomic calculations as G1 for thread counts. jar file to a specific folder, then create a file in it start. For each N references defined by the -XX:ReferencesPerThread flag a single thread will be used. 1. 10 which offers players a brand new challenge and a totally different experience from the vanilla version. Replace the JVM args with one of these:Change Internal Settings from Default: - Setup> Application Settings> System> Change to: REAL TIME (No Delay) Data. For example: Code (Text): java. Click start, get the “Up…Down” response. the option ParallelRefProcEnabled is enabled by default now, enabling this mechanism. 8) project via sbt dist. Create a new installation, call it whatever you want. By default, this option is disabled. 正文 年R本政府宣布，位于F岛的核电站，受9级特大地震影响，放射. Just posting the suggested start parameters here for reference: java -Xms6G -Xmx6G -XX:+UseG1GC -XX:+UnlockExperimentalVMOptions -XX:MaxGCPauseMillis=100 -XX:+DisableExplicitGC -XX:TargetSurvivorRatio=90 -XX:G1NewSizePercent=50 -XX:G1MaxNewSizePercent=80 -XX:G1MixedGCLiveThresholdPercent=35 . java -Xms8G -Xmx8G -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:+PerfDisableSharedMem -XX:-ZUncommit -XX:+ParallelRefProcEnabled -jar server. I have tried to deploy my Spring Boot Microservice to App Engine but I am facing a unsupported class version error, now I understand that App Engine only supports Java 8 (52), so I have altered my classpath to support Amazon Corretto 1. Sorted by: 1. We can also include following other options : -XX:+UnlockDiagnosticVMOptions. Follow the instructions in the image below. 15. I was provided these settings by vendor to help improve the performance of our jenkins. -XX:-UseAdaptiveSizePolicy is great, however, it should be used with -XX:+ParallelRefProcEnabled right after. Sorted by: 2. java. 7. 참고로 마인크래프트가 기존 PC용 자바 에디션과, 콘솔/모바일 크로스 플랫폼 을 지원하는. Connect and share knowledge within a single location that is structured and easy to search. Step 5 - Start Spigot Server. In terms of reducing lag spikes I got very good results using the Shenandoah GC. Starting at "Adrenalin 22. Atm 8 Jvm arguments. It was clear that G1GC is not the way to go with OpenJDK 1. you need java 16 or lower, you currently have java 17. I would check to make sure you have the mods in the right folder and are launching the game with the correct version of forge. Please keep in mind that using other flags will either: ; Increase general CPU usage and provide minimal GC performance gains. Java 18 and 19 I have been running on 1. cpu. This mod reduces the memory usage of Minecraft in a few different ways. Then run chmod +x start. This can be checked using following command 'ps -ef|grep solr'. You are welcome to follow the series. You need to use the correct binaries. To display the JVM status for a JBoss EAP server in a managed domain: Select the Runtime tab, and then select the server group and server that you want to view. Once saved, open a terminal (or log into the machine) if you haven't already, navigate to the directory where you have placed the Velocity JAR file and the start. docker run -e JVM_XX_OPTS=-XX:+UseG1GC -XX:+ParallelRefProcEnabled ^ | Without quotes, the shell thinks this is the start of a new argument This ambiguity is one of many reasons I prefer the object style declaration of environment in compose files: In between the CMS and GC Logging sections, there should be one more section in that file- the G1 section, which looks like this: ### G1 Settings (experimental, comment previous section and uncomment section below to enable) ## Use the Hotspot garbage-first collector. Sorry for my bad English After I press Activate button, it just shows me the "Start" button and doesn't start even if I press the start button again tho So I tried Hibernating the server in the Danger section and activating again several times but it doesn't work Every time I press the start butt. The resulting logs can then be analysed in a specialized tool such as the GCMV plugin for. exe process under the tree of the Minecraft launcher) Minecraft javaw. You switched accounts on another tab or window. 1. Recommend just letting ZGC manage this and removing the flag.