Hi, we need to update our email system then :) . Here are the links:
https://drive.google.com/file/d/1lZ5_P8_NqsN1JeLzutGj4DxkyWJN75mR/view?usp=sharing https://drive.google.com/file/d/1J6c6rQJwtDp1moAGlvQyLQXTqcuG4HjL/view?usp=sharing https://drive.google.com/file/d/1-R2KzsABC471AEjkF5qTm5O3V47cpbBV/view?usp=sharing All are DataStream job. Best Lu On Sun, Apr 4, 2021 at 9:17 PM Yun Gao <yungao...@aliyun.com> wrote: > > Hi Lu, > > The image seems not be able to shown due to the mail server limitation, > could you upload it somewhere and paste the link here ? > > Logically, I think zigzag usually due to there are some small object get > created and eliminated soon in the heap. Are you running a SQL job or a > DataStream job ? > > Best, > Yun > > ------------------------------------------------------------------ > Sender:Lu Niu<qqib...@gmail.com> > Date:2021/04/05 12:06:24 > Recipient:dev@flink.apache.org<dev@flink.apache.org> > Theme:Zigzag shape in TM JVM used memory > > Hi, Flink dev > > We observed that the TM JVM used memory metric shows zigzag shape among > lots of our applications, although these applications are quite different > in business logic. The upper bound is close to the max heap size. Is this > expected in flink application? Or does flink internally > aggressively pre-allocate memory? > > app1 > [image: Screen Shot 2021-04-04 at 8.46.45 PM.png] > app2 > [image: Screen Shot 2021-04-04 at 8.45.35 PM.png] > app3 > [image: Screen Shot 2021-04-04 at 8.43.53 PM.png] > > Best > Lu > >
