英文:
How to Increase Java Heap Size in AWS ECS?
问题
我在Java SpringBoot中开发了一个REST API。我已将此API部署为AWS ECS中的Docker容器。我在AWS任务中分配了2048 MB作为硬内存和1024作为软内存。在ECS启动Docker容器后,我访问了Docker容器并执行了以下命令:
> java -XX:+PrintFlagsFinal -version | grep HeapSize
我获得了以下结果:
uintx ErgoHeapSizeLimit = 0 {product}
uintx HeapSizePerGCThread = 87241520 {product}
uintx InitialHeapSize := 33554432 {product}
uintx LargePageHeapSizeThreshold = 134217728 {product}
**uintx MaxHeapSize := 536870912** {product}
结果中显示的MaxHeapSize为536870912,约为536 MB(大约是软内存的一半)
我想知道如何在AWS ECS环境中将此堆大小增加至少到800 MB。
我知道如何使用命令java -Xmx800m设置堆大小,但我不知道在AWS ECS环境中在哪里执行此命令。
英文:
I have REST API developed in Java SpringBoot. I have deployed this API as a docker container in AWS ECS. I have allocated 2048 MB as hard memory and 1024 as soft memory in the AWS Task. After ECS launches the docker container, I access the docker container and executed the following command
> java -XX:+PrintFlagsFinal -version | grep HeapSize
I get the following result
uintx ErgoHeapSizeLimit = 0 {product}
uintx HeapSizePerGCThread = 87241520 {product}
uintx InitialHeapSize := 33554432 {product}
uintx LargePageHeapSizeThreshold = 134217728 {product}
**uintx MaxHeapSize := 536870912** {product}
The MaxHeapSize shown in the result is 536870912 which is approx 536 MB (around half of the soft memory)
I would like to know how can I increase this heap size to at least 800 MB in the AWS ECS environment.
I know how to set the heap size using the command java -Xmx800m, but I do not know where to execute this command in the AWS ECS enviornment.
答案1
得分: 3
对我来说,通过在我的 ECS 任务定义中设置环境变量 JAVA_TOOL_OPTIONS
来实现,就像这样:
环境变量 | 值 |
---|---|
JAVA_TOOL_OPTIONS | -XX:InitialHeapSize=1g -XX:MaxHeapSize=2g |
希望能对你有所帮助!
顺便说一下,我的容器是在 Amazon Corretto JDK 版本 8 下运行的。
英文:
For me, it worked by setting the environment variable JAVA_TOOL_OPTIONS
in my ECS Task Definition like this:
Environment Variable | Value |
---|---|
JAVA_TOOL_OPTIONS | -XX:InitialHeapSize=1g -XX:MaxHeapSize=2g |
I hope this helps!
BTW, my container was running with Amazon Corretto JDK version 8.
答案2
得分: 2
在你的Dockerfile中添加xmx属性。例如,命令为java -Xmx800m your_jar。
英文:
Add xmx property in your dockerfile. eg cmd java -Xmx800m your_jar
答案3
得分: 2
以下是您要翻译的内容:
对我来说,-Xmx 似乎不被 ECS 忽略。
我增加了任务的 vCPU 和内存参数,希望增加堆大小。
我在容器命令的覆盖中使用了参数 -XX:MaxRAMPercentage=80.0
。最终它起效了。
英文:
For me the -Xmx seemed not to be ignored by ECS.
I increased the Task vCPU and memory parameters, and wanted the heap size to be increased.
I used the parameter -XX:MaxRAMPercentage=80.0
in the override of the container Command. It finally worked.
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