Re: deploying flink in AWS - some teething issues

Posted by Patrick Lucas on
URL: http://deprecated-apache-flink-user-mailing-list-archive.369.s1.nabble.com/deploying-flink-in-AWS-some-teething-issues-tp12437p12448.html

For 1., I think the standard approach would be to specify from without what the heap size should be. If you want an x MB heap, you could set your container memory limit to 1.3 * x or so (to account for overhead) and set taskmanager.heap.mb: x in your config.

The other way around—e.g. from inside the container determine its memory limit and divide it by 1.3—sounds interesting though, so please share if you have success with that.

For 2. I don't think there's really a good way yet to monitor the health of containerized jobs directly, so probably your best bet is to watch the job's metrics from outside the Flink cluster.

On Wed, Mar 29, 2017 at 10:58 AM, Chakravarthy varaga <[hidden email]> wrote:

Hi,

    Any updates here? I'm sure many would have faced similar issues like these, any help here is highly appreciated.

Best Regards

CVP

On Tue, Mar 28, 2017 at 5:47 PM, Chakravarthy varaga <[hidden email]> wrote:

Hi Team,

   If the flink cluster is conainerized and managed through by a container orchestrator,  

    1.  the orchestrator allocates resources for each JM. TM etc., say if the container (TM) needs to run with 2G RAM, how should this allocation be honoured by the TM when its JVM starts. I'm thinking of wrapping up a script that determines the resource allocation for the container and writes the flink-conf.yaml before the TM starts the process. Is this the way to go?

    2. The container orchestrator looks at health of the containers and is however unaware of the job health status runnning inside the container/cluster. How should this be determined?

Best Regards

CVP