. 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. 17以后更新J16什么表现暂且留作讨论，但我觉得顶多修修bug不会有质变。JAVA环境使用llireta创造服全物品中心进行静态测试，带出生点一共近万漏斗数百实体比较能反应一般生电服的静态卡顿情况。Saved searches Use saved searches to filter your results more quicklyWhen vanilla finally switched to Java 8 I remember hearing that Forge contributors were quite happy that they could start using lambdas. Best values for min-max RAM, Xms & Xmx arguments. · Issue #1 · LiamSho/mcsmanager-image · GitHub. 0. Raw. lang. Note that SAP Commerce also supports multiple Solr. 21. zip and upload it to the main directory of your Gdrive #run this sell to unzip the contents and you can n ow skip part 1 from google. 15. . Os - debian 10, java version - 8 build 281-b09, core - paper 1. 1. 选项 -XX:ParallelRefProcEnabled 现在默认为 true（启用） 在有多个线程可用于垃圾收集的机器上，这一变化显着改善了垃圾收集暂停的这一阶段。 如果您遇到垃圾收集暂停增加的情况，您可以通过在命令行上指定 -XX:-ParallelRefProcEnabled 来恢复到原始行为。Hey all, I recently onboarded a client with probably 100+ mods on their Forge 1. Suppose Java 15 is in your PATH variable. Still there were seven pauses in two minutes. UPDATE. 303. Connect and share knowledge within a single location that is structured and easy to search. GraalVM is a new Java VM from Oracle that can improve the performance of modded and vanilla Minecraft. [ ] import os. Please also check the Release Notes. This is single-threaded by default. 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. additional. Step 7 - Connect to Minecraft. Learn more about Teams If you are looking for the Fabric version you can find it here. -Xms16G -Xmx16G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch . 17. The max memory GC will use. To control the degree of parallelism, i. Create a new installation, call it whatever you want. Download the latest Java 11 Compressed Archive (zip) file. 0 (build 13) version. /start. The fourth column shows the flag default/applied value, The fifth one shows category. 8. 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. First of all the performance of zgc - it is damn fast - gc collection takes sub-millisecond range. forgot to add that your main problems are pretty much with any mobs ticktime. Set 3 just didn´t work for me, server started with 11. From what I understand this means the server will always use 2GB of RAM but can take up to 6GB if it needs it. The Z Garbage Collector is enabled with the command-line option -XX:+UseZGC. 让 JVM 动态感知 cgroup. This is the result of top command. Inside, write @Echo off java -Xms128M -Xmx5120M -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch . First, let's look at the big picture and at how Jenkins behaves with G1 GC for a second company. I would think that this is the max you'll get away with being able to allocate on an 8gb system. Here is the startup flags of all the applications, we run about 30 mc boxes & all of them seem to be having the same issue. 19s Sys=0. I believe it is a bug that might not be addressed yet. 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. Yeah, get a different host or something. {"payload":{"allShortcutsEnabled":false,"fileTree":{"pages/minecraft-java/managing-server":{"items":[{"name":"aikar. For example: Code (Text): java. Remark phase is single-threaded by default unless this option “-XX. Learn more about Teams 活死人. com is the number one paste tool since 2002. You need to be a member in order to leave a commentRosaRosaRosaRosaRosaRosaRosaRosaRosaRosaRosaRosaRosaRosaRosaRosaRosaRosaRosaRosaRosaR i code, animate, develop, UI design, learn, and adapt, as well as make servers. Aikar's recommended flags for Waterfall are as follows: java -Xms512M -Xmx512M -XX:+UseG1GC -XX:G1HeapRegionSize=4M -XX:+UnlockExperimentalVMOptions -XX. jar. 0 VM to: +ParallelRefProcEnabled crashes on single core platform Teams. This question already has answers here : Closed last year. Angel Borroy is Hyland Developer Evangelist. There are also general tunable parameters for the G1 garbage collector. Java 17 is mainly for 1. + Quote Reply. The latest builds target 1. Of course, this isn’t the fastest option, so I wanted to make some changes to the server. Inside, write @Echo off java -Xms128M -Xmx5120M -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch . 1. In the Monitor column, select JVM and click View . Turning on ParallelRefProcEnabled helps collect reference objects (e. Only available under /solr/admin/system. 16. 9. garbage-collection. forgot to add that your main problems are pretty much with any mobs ticktime. vmoptions" -jar launcher-first. For each N references defined by the -XX:ReferencesPerThread flag a single thread will be used. However, I'm encountering an issue where it seems to be using Ja. Replace the JVM args with one of these:I 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. 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. TPS dropping may actually be a sign that there isn't enough cpu or ram allocated to the server. Hello, I have a vanilla project. xml file (same folder as jenkins. Key stats: Throughput. Search titles only; Posted by Member: Separate names with a comma. lang. # define the java or path of a java version you need (default: java) # define max ram (1024M/1G 2048M/2G. Steps/models to reproduce: Issue /restart from in game or restart from console Plugin list: [2. 日本核电站爆炸内幕. txt. The resulting logs can then be analysed in a specialized tool such as the GCMV plugin for Eclipse. 描述: 主要是弱引用场景（比如缓存, 它不介意JVM垃圾回收是否会收集）, 然而，GC会花很多时间尝试找出哪些引用能被清理，并且重新标记阶段默认是单线程的，通过配置-XX:+ParallelRefProcEnabled让这个阶段并行. Cput usage rate gets lower, sound of cpu gets lower but then it starts again. #2. Also, you should remove -XX:+AlwaysPreTouch as it doesn't play well with. This tells Java to use a minimum of 2 GB and a maximum of 4 GB for the heap. The pack runs fine with 10GB RAM. What I've end up with was that: -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX. Then run chmod +x start. No logs generated. the option ParallelRefProcEnabled is enabled by default now, enabling this mechanism. Minecraft的Mod服务器是一个可供多个玩家联机游戏的虚拟空间，玩家可以通过使用各种Mod来扩展和改变游戏内容，以进行更多的活动、创造更多的物品和体验更多的游戏玩法，并与其他玩家互动。 Minecraft Java版的服务器可以根据其结构分为四种类型： 原版服务器，指使用官方Java版服务端开设的服务器. 0. For me, you should replace -$ by the jar file or spigot, like that: #!/bin/sh while true do java -Xms4G -Xmx4G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX. 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. . The args below assume you have at least 12GB available. The basic syntax for a. Search titles only; Posted by Member: Separate names with a comma. Last updated Oct 16, 2023. com is the number one paste tool since 2002. Enables the function for parallel execution, making it safe for use in concurrent sessions of parallel DML evaluations. e. Step 2 - Install Java and Git. By including the -XX:+ParallelRefProcEnabled. Reply to Thread. Pastebin is a website where you can store text online for a set period of time. java. 10 which offers players a brand new challenge and a totally different experience from the vanilla version. java. 4 to create a zip for a Play Framework (2. There are also general tunable parameters for the G1 garbage collector. Click start, get the “Up…Down” response. hello, today i bought a lowhosting server and tried to install spigot or paper on it, but it doesn't work. jar. Example: 1. In terminal navigate to /opt/solr. Tuning G1 GC for Cassandra. Go to papermc. -XX:+UseConcMarkSweepGC will ruin the previous 2 working together. Newer Than: Search this thread only; Search this forum only. xml file (same folder as jenkins. 56=-XX:InitiatingHeapOccupancyPercent=70 Nat. 2 then. Reload to refresh your session. 0_291\bin\java. UPDATE: Changing the Xmx value from 512m to 2g reduced the time from ~150 seconds down to ~50 seconds. Also, you put a wrong back to break line (" ") which seems to break the bash. The container port within the docker network is still 25565 for main-hub. 0 is taking 5 minutes 7 seconds. Glad this game has such a good dev that responds to people. > > > > I've included some notes on the wiki about how you can size the G1 heap > > regions appropriately for your own index. 0. io, download the server jar you want, make a new text document on your desktop and edit it. 19. 5 | ForEach-Object -Parallel { "Hello $_"; sleep 1; } -ThrottleLimit 5. Display results as threadsSpoiler: Set 3. Paper has many unique features and changes, including many performance improvements not found in Spigot. I very highly recommend you check out Aikar's website, there are many more optimizations you can make with JVM Arguments. debian. 4 Direwolf20 pack it reduces the memory usage (after GC) on. 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. G1GC - A balance between RAM usage, throughput and latency - used by default in Minecraft (parallel) ZGC - Concurrent latency focused gc. x you can use java 16. Saved searches Use saved searches to filter your results more quicklycheck_jvm checks various properties of locally running JVMs and returns performance data. Indeed it seems from these results that it produces some of the worst results with ZGC. Use of -XX:+ParallelRefProcEnabled flag decreased the pause time of PhantomReference to 0. {"payload":{"allShortcutsEnabled":false,"fileTree":{"bin":{"items":[{"name":"examples","path":"bin/examples","contentType":"directory"},{"name":"report-template. 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. Max Processes Limit is 9216. let me try to explain the message in more detail: [parent] Data too large, data for [<transport_request>] would be [53028227584/49. Display results as threadsG1GC remark phase is taking too long. java. . 5G. In this second installment, Monica delves into more practical aspects and provides guidance for tuning. the only difference being populating the core key in the result. This section describes the '-XX:+PrintFlagsFinal' JVM option, which prints all options and their values used by the JVM. Systemd ignores notify PID when similar service is running. This mod reduces the memory usage of Minecraft in a few different ways. create a new text document and call it. So given Wendell’s recent video+thread on HaProxy-Wi and other content relating to self-hosting services at home and then proxy-ing them to the internet, I have seen some questions about running a reverse proxy with a Minecraft server, and answered them, and thought I might as well make a full thread. Open your terminal, navigate to the saved location, and then run. Java 18 and 19 I have been running on 1. If you can't take heap dump (and use Eclipse MAT) when the problem occuress maybe just log result jmap -histo:live every 5 minutes. This is the first article of the Java in Container series. Pastebin. 2. runSetupWizard=false # 1. Its default is calculated based on. com is the number one paste tool since 2002. Step 5 - Start Spigot Server. 3gb], new bytes reserved: [2896/2. If you never time out, google methods to do the same thing but with a port number instead. 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. The "Old Gen" graph on site you used shows heap usage for Old Gen is not falling after GC. Still there were seven pauses in two minutes. Connect and share knowledge within a single location that is structured and easy to search. additional. 0. Reference processing isn’t usually a big deal for Cassandra, but in some workloads it does start to show up in the GC logs. 16. These options go between "java -Xmx<size_in_gb>g -Xms<size_in_gb>g" and "jar <minecraft jar>. Today I decided to start it. target [Service] Type=notify NotifyAccess=all ExecStart=<Path to start script> ExecStop=<path. Better explanation would be: G and M indicate GB and MB. Pastebin. 3) 맵 크기에 맞춰서 시간을 기다려 줍니다. Solr base directory. [18:17:20 WARN]: java. , WeakReference) in parallel which will be faster if there is a lot. High-performance applications form the backbone of the modern web. Parallel reference processing is available for the low pause collector but is not on by default. . Paper recommends this startup argument for anything over 12gb of ram java -Xms14G -Xmx14G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 . Such as -e JVM_XX_OPTS="-XX:+UseG1GC -XX:+ParallelRefProcEnabled" -XX:MaxGCPauseMillis=200" The good news is that Aikar's flags is already supported with -e USE_AIKAR_FLAGS=true 👍 1 Jaymasaur reacted with thumbs up emojiTry -Xmx4096M -Xms4096M as your ram allocation. Java 15 is faster than 11 and this way you can ensure your getting the Java version that targets your CPU. Try these arguments and see if they improve your experience: -XX:+UseShenandoahGC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 . 5gb], real usage: [53028224688/49. Added more flag documentation. 5G = 1536m-Xmx1536m-Xms768m-Djenkins. Using both of them means that the server consumes the exact amount of RAM right when it starts up and never requests more. Some app uses weak references (say for caching, and it does not mind if JVM gabbage collects these cache lines to “effectively” increase the cache size), then GC spends a lot of time trying to figure which references can be cleaned up. It was clear that G1GC is not the way to go with OpenJDK 1. Replace the JVM args with one of these:Change Internal Settings from Default: - Setup> Application Settings> System> Change to: REAL TIME (No Delay) Data. # other options <application-jar> \ [application-arguments] In your case you. #If you already have all your server files then pu t them in a folder called "MineCraft" #Make sure the main jar file (spigot, vanilla, for ge,etc) is named server. The resulting logs can then be analysed in a specialized tool such as the GCMV plugin for. A high-level technical description of the changes is available here. Introduction. My server application under load some times goes unresponsive and i found the issue to be related to very long "GC Remark". Pastebin. sh file. ExportZGC stands for Z Garbage Collector, a garbage collector, put simply, is a thing that frees up memory for further use within your server. 4) 보더를 지나면 이제 새로운 청크가 절대 생성되지. ParallelRefProcEnabled Option in JVM. My test server is a 4 core/8 gb/8 GB swap. -XX:+ParallelRefProcEnabled - ZGC uses a complex approach to cleaning up references. By default, this option is. For optimal user experience, it is very important to serve these requests with low latency. -XX:-UseAdaptiveSizePolicy and -XX:+ParallelRefProcEnabled are parallels to is a variant to -XX:G1NewSizePercent=20. The following charts shows jdk7u21 running 100% read for one hour using -XX:+UseG1GC -Xms100g -Xmx100g - XX:MaxGCPauseMillis=100. OpenGL was long known for having garbage performance (at least on Windows systems) with AMD Graphics Cards. 5. A basic bash startup script with aikar's flag for starting Minecraft servers. 先说结论，至少Java11的测试版ZGC在普通生电服务器是完全不如ParallelOldGC的，1. This library is used by Solr, one of the CKAN requirements that powers the search. I was provided these settings by vendor to help improve the performance of our jenkins. Unzip this on your build server, keep the path where you extracted to for step 5. Aikar flags seen here Aikar's Flags | PaperMC Documentation. PATH_MAX=0 # GC-XX:+UseG1GC # Enable String Deduplication-XX:+UseStringDeduplication # Enable Parallel Reference. Why would you want to change the default G1 to Z, when it works just fine, especially with a bit of tuning. JDK; JDK-8204612; Make dynamic parallelization of reference processing work default in G1Go to the launcher. For each N references defined by the -XX:ReferencesPerThread flag a single thread will be used. The change improves this phase of the garbage collection pause significantly on machines with more. This API provides the same information displayed on the Dashboard. More about lagging process: Ping of all players starts to slowly raise, then, after some minutes server starts to lagging, BUT TPS is 20 all the time. 6:18. Delete unneeded files/plugins from your server and try starting it up then. Java 17 is noticeably faster than Java 11 in my small-scale experiments. And stick with that for a while. We would like to show you a description here but the site won’t allow us. 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. KubeSphere 开发者社区，提供交流 Kubernetes、Istio、Jenkins、Prometheus、EFK 等云原生技术的平台。. You can still use the current builds on 1. 1. By Bubi. According to the Spark Documentation on Launching Application with spark-submit the spark-submit command has the following syntax: . This entry in the Java in Container series discusses the default value of ParallelGCThreads. If only one CP is online when the query is bound, Db2 considers only parallel I/O operations. I caught it at 99. Invoke-Parallel is useful when you have items with high latency or that is long running. So, we add the GC flag -XX:+ParallelRefProcEnabled which enables us to use the multiple cores more effectively. 0 of the 1. After out of memory issue i got this in the. 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. 2 then. They are common to all JVM garbage collectors. 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. 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. 1) 위의 링크로 들어가 Chunky 를 다운받고 넣어준다 (무료입니다. In some cases, the descriptions provide links to additional detailed information about an issue or a change. Some app uses weak references (say for caching, and it does not mind if JVM gabbage collects these cache lines to “effectively” increase the cache size), then GC spends a lot of time trying to figure which references can be cleaned up. For example, in java 14 the full. Added notes about recommended use of 10GB of memory. |3 RCON_CLI_VER=1. There are a few GCs as well as a number of flags (options) you can use to change how it runs. Set -XX:+ParallelRefProcEnabled to let it run in parallel. Information on the system. Reference` processing can be tuned by using the experimental option, `-XX:ReferencesPerThread` (default value: 1000). It aims to fix inconsistencies between gameplay and mechanics. Fork 31. java -Xms8G -Xmx8G -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:+PerfDisableSharedMem -XX:-ZUncommit -XX:+ParallelRefProcEnabled -jar server. The issue was first to believed to be caused by G1GC itself or the used Runtime GraalVM 21. 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. The ONLY gc-root reference in the heapdump to all of the leaked CraftWorlds and CraftPlayer is the entry in WeakHashMap, key being CraftPlayer. 0 and later, using the Concurrent-Mark-Sweep (CMS) or G1 garbage collector depends on these factors: Heap sizes from 16 GB to 64 GB. Unusual System or Real-Time Usage. Teams. 4. Its default is calculated based on your current machine, you can see it via java -XX:+Use????GC -XX:+PrintFlagsFinal | grep ParallelGCThreads (fill in the GC you're using, defaults may vary) -XX:+ParallelRefProcEnabled -XX:ReferencesPerThread=1000 -XX:ReferencesPerThread determines the degree of parallelization: for every N Reference Objects one thread will participate in the sub-phases of Reference Processing, limited by -XX:ParallelGCThreads . 0_291injava. CurseForge is one of the biggest mod repositories in the world, serving communities like Minecraft, WoW, The Sims 4, and more. Step 2 - Install Java and Git. Update as of June 2022: We now allow clients to enable a few pre-defined parameters automatically, from the Advanced -> Startup Parameters page within the Multicraft control panel. This can be checked using following command 'ps -ef|grep solr'. What behaviour is observed: Server shuts down and does not re start. System Info Handler. The change improves this phase of the garbage collection pause significantly on machines with more. -XX:+ParallelRefProcEnabled (default true) If remark pauses are high or increasing (i. JDK; JDK-6659981 +ParallelRefProcEnabled crashes on single core platform. The JVM itself has a memory overhead, so in my experience you want your Xmx value to be 512mb-1gb less than the total memory allocated for the server. You may need to refresh the WebUI after its finished copying over. According to security policy, this is consider as security breach. Problematically, the memory usage is currently sitting at 11 GB and can get up to 15-16 GB while no more than 5 players are online. eula=true. You can change the Xms and Xmx to be 3G. 4) and having trouble with RAM usage causing my server to suddenly stop working. -XX:+ParallelRefProcEnabled # parallelize reference processing, reducing young and old GC times. the number of concurrent runspaces, use the -ThrottleLimit parameter. Performance Tools. Step 8 -. For Cassandra 3. Go to Direct Connect, then add your NAS Local IP followed by :25565 and click Join Server. 沈念sama 阅读 22,161 评论 2 赞 153. 0. Log In. Pause times are independent of heap size that is being used. Now set HEAP environment variable to increase the lower limit to 5G and the upper limit to 10G. Currently using set 1 as it is the one that gives me the most time before the server runs out of memory. Run a Minecraft Server on Google Colab! The script below will run your server. . minecraft) Click more options. At the time of writing: jdk-11. That should keep the window open. You set the hard limits, but not the soft limits, and the soft limits are what is being reported. The option -XX:ParallelRefProcEnabled is now true (enabled) by default. You signed out in another tab or window. md","path":"pages/minecraft-java/managing-server. 4-5+ GB RAM for like 10 players, 8+ RAM for 20+ players. bat server loaded just fine. 2. Java 11 may have ok backwards compatibility, but Forge. 5gigs of ram usage and kept going up. 先说结论，至少Java11的测试版ZGC在普通生电服务器是完全不如ParallelOldGC的，1. AlwaysPreTouch. This entry in the Java in Container series discusses the default value of ParallelGCThreads. 1 heap settings: -Xms1g and -Xmx1g. The function must include a PARALLEL_ENABLE clause. 1. . Those are troubling; we'll take a deeper dive into their causes in a second. Oct 11, 2016 at 8:41. Suppose Java 15 is in your PATH variable. For optimal user experience, it is very important to serve these requests with low latency. the option ParallelRefProcEnabled is enabled by default now, enabling this mechanism. 18. GC pauses of up to 200 milliseconds are usually considered acceptable because the server is able to immediately catch up following the pause, so there is no noticeable impact on gameplay. Posting on a closed issue saying the crash still exists will prompt us to investigate and reopen it once we confirm your report. Q&A for work. To enable Garbage Collection logs, the below properties should be defined: 1 -Xloggc:<node temporary directory>/gc_node_%t. For those. To further tune your memory usage. 8 java_flags=-Dlog4j2. * Loaded classes. 4, but has since then reproduced on Adoptium 8. Source Code. cd /opt/solr. Introduction. On prem server consists of 128GB RAM. > > A note was just recently added to the Lucene wiki,. . Biggess Pack Cat Edition. Expected behavior Expected no problems, as observed in Paper Observed/Actual behavior On Paper, the stress test ran for about 5 hours with no problems, just delayed ticks ~100. Conclusion You signed in with another tab or window. 1. Step 6 - Configure Spigot as a service. 商业产品与合作咨询. 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. This best practice advice applies to AM, DS, IDM and IG running on Java® 11 (or 17 where supported). A high-level technical description of the changes is available here. 0 through 9.