?????????????? 
https://flink.apache.org/news/2020/04/21/memory-management-improvements-flink-1.10.html
?????????? https://issues.apache.org/jira/browse/FLINK-16406



?? 2020-04-29 14:09:21??"??????????????" <[email protected]> ??????

https://gceasy.io/my-gc-report.jsp?p=YXJjaGl2ZWQvMjAyMC8wNC8yOC8tLWdjLmxvZy0tNC0xMC01Ng==&channel=WEB


????????gceasy????????????????????log????????????????????????????????????????????log????????????????????????????????log????
------------------ ???????? ------------------
??????: "Xintong Song"<[email protected]>;
????????: 2020??4??29??(??????) ????12:45
??????: "user-zh"<[email protected]>;
????: Re: flink ????????????-metaspace ????


full GC ?????????????????????????????????????????????? GC 
log?????????????????????????????? full GC ????????????????????????
TM ??????????
????????metaspace OOM ???????????? GC ????????????????JVM ???????????????? 
GC??????????
heap/direct/metaspace ?????????????????????????????????? GC?????? GC 
???????????????????????????????????? OOM??
???????????????????? TM ?? 64G ???????????????????????? java heap 
?????????????????????????????????? GC ??????

Thank you~

Xintong Song



On Wed, Apr 29, 2020 at 12:27 PM ?????????????? <[email protected]> wrote:

> ???? 
> memory????????????????????????????????????????????????????????????????????????full
> gc??????????taskmanager??????????????????????job??????metaspace??????????????
> ????????????????????????????????????fullgc??????????????????
>
>
>
>
>
> ------------------&nbsp;????????&nbsp;------------------
> ??????:&nbsp;"Xintong Song"<[email protected]&gt;;
> ????????:&nbsp;2020??4??29??(??????) ????11:00
> ??????:&nbsp;"user-zh"<[email protected]&gt;;
>
> ????:&nbsp;Re: flink ????????????-metaspace ????
>
>
>
> Metaspace OOM ?????? JVM ????????????????????TM ?????? 1568m ?????? 
> 65536m???????????? slot
> ????????????????????????????????????????????metaspace 
> ???????????????????????????? OOM??
> ?????????????????????????????? 1.10.0 ?????? metaspace ???????????????????? 
> 1.10.1 ????????????????????????????????????
> taskmanager.memory.metaspace.size ???? 256m ????????
>
> Thank you~
>
> Xintong Song
>
>
>
> On Tue, Apr 28, 2020 at 7:21 PM ???? <[email protected]&gt; wrote:
>
> &gt; ??????????:124G??????????????????
> &gt; taskmanager.memory.process.size: 65536m
> &gt;
> &gt; es5-connector sink????
> &gt; ??????????????fullgc java.lang.OutOfMemoryError: Metaspace
> &gt;
> &gt;
> &gt;
> &gt; ????????
> &gt; taskmanager.memory.process.size: 1568m
> &gt; es5-connector sink????
> &gt; ????????????????
> &gt;
> &gt;
> &gt;
> ??????????????????????????????????????????????????????????????metaspace????????????????????????????????????????????????????????????????????
> &gt; ??????????????????????????????????

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