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Re: strange GC behaviour

Thank you, Ted.

I should have been more specific. What is the semantic of “Time” under “Garbage Collection” on the Flink UI. I couldn’t find documentation about it.





From: Ted Yu <yuzhihong@xxxxxxxxx>
Date: Tuesday, 1 May 2018 at 18:40
To: Zhenhao Li <zhenhaoli@xxxxxxxxxxxxxx>
Cc: "user@xxxxxxxxxxxxxxxx" <user@xxxxxxxxxxxxxxxx>
Subject: Re: strange GC behaviour



On Tue, May 1, 2018 at 8:38 AM, Zhenhao Li <zhenhaoli@xxxxxxxxxxxxxx> wrote:

Hi there,


I am running a Beam job with FlinkRunner as a standalone job on YARN with 4 nodes. The job always dies after one hour or two.

Now looking deeper into the task manager metrics, I find that there is a one task manager showing strange CG behavior as shown in the attached screenshots.


Can anyone help interpret the numbers under GC?