Flink Application Jar file on Docker container

[Rahul Raj]

Currently I have a Flink Application Jar file running on Mesos cluster. The flink application simply reads data from Kafka and put it to HDFS.

Now we are planning to create a docker image to  run this application jar file inside docker containers on Mesos cluster via Marathon. 

Below are the questions that I am looking answers for:

1. While building the docker image, how do I include flink-1.3.2 set up and  my mesos config in flink?

2. How shall I run my existing flink application jar?

3. Will running my flink application jar on docker containers will run it on mesos slaves on different docker containers? How docker , Flink, mesos , Marathon will work together in my case?

Rahul Raj

[Stefan Richter]

Hi,

as in my answer to your previous mail, I suggest to take a look at https://github.com/mesoshq/flink . Unfortunately, there is not yet a lot documentation about the internals of how this works, so I am also looping in Till who might know more about specific questions about how things work together exactly.

Best,

Stefan

 

Am 26.09.2017 um 09:21 schrieb Rahul Raj <[hidden email]>:

Currently I have a Flink Application Jar file running on Mesos cluster. The flink application simply reads data from Kafka and put it to HDFS.

Now we are planning to create a docker image to  run this application jar file inside docker containers on Mesos cluster via Marathon. 

Below are the questions that I am looking answers for:

1. While building the docker image, how do I include flink-1.3.2 set up and  my mesos config in flink?

2. How shall I run my existing flink application jar?

3. Will running my flink application jar on docker containers will run it on mesos slaves on different docker containers? How docker , Flink, mesos , Marathon will work together in my case?

Rahul Raj

[Rahul Raj]

Hi Stefan,

Thanks a lot for your answer and sharing the link https://github.com/mesoshq/flink. I went through this and saw its spawning Jobmanager and taskmanager. Now I think, this should be happening. First JobManager will be started on flink cluster on one node, then task manager will be started on another node and both should be running in docker containers on different nodes. Now, my question is how flink's JobManager will get to know about the taskManagers as they are in in different docker containers on different nodes? Will it happen via Mesos?

Can we use mesos-appmaster.sh instead which is already built in flink for deployment on mesos?

Rahul Raj  

On 26 September 2017 at 15:32, Stefan Richter <[hidden email]> wrote:

Hi,

as in my answer to your previous mail, I suggest to take a look at https://github.com/mesoshq/flink . Unfortunately, there is not yet a lot documentation about the internals of how this works, so I am also looping in Till who might know more about specific questions about how things work together exactly.

Best,

Stefan

 

Am 26.09.2017 um 09:21 schrieb Rahul Raj <[hidden email]>:

Currently I have a Flink Application Jar file running on Mesos cluster. The flink application simply reads data from Kafka and put it to HDFS.

Now we are planning to create a docker image to  run this application jar file inside docker containers on Mesos cluster via Marathon. 

Below are the questions that I am looking answers for:

1. While building the docker image, how do I include flink-1.3.2 set up and  my mesos config in flink?

2. How shall I run my existing flink application jar?

3. Will running my flink application jar on docker containers will run it on mesos slaves on different docker containers? How docker , Flink, mesos , Marathon will work together in my case?

Rahul Raj

[Stefan Richter]

Hi,

if I correctly understood the approach outlined on github, you can start a standalone job manager and the task manager get the JM information either through the provided configuration or through Zookeeper. Take a look at the „running section“, e.g.:

1) „Via Mesos/Marathon: Start a standalone JobManager (you need to replace the flink_recovery_zookeeper_quorum variable with a valid setting for your cluster) [...]“

2) „Via standalone Docker: Start a standalone JobManager (with host networking, binding on 127.0.0.1) […]“

Best,

Stefan

Am 26.09.2017 um 12:43 schrieb Rahul Raj <[hidden email]>:

Hi Stefan,

Thanks a lot for your answer and sharing the link https://github.com/mesoshq/flink. I went through this and saw its spawning Jobmanager and taskmanager. Now I think, this should be happening. First JobManager will be started on flink cluster on one node, then task manager will be started on another node and both should be running in docker containers on different nodes. Now, my question is how flink's JobManager will get to know about the taskManagers as they are in in different docker containers on different nodes? Will it happen via Mesos?

Can we use mesos-appmaster.sh instead which is already built in flink for deployment on mesos?

Rahul Raj  

On 26 September 2017 at 15:32, Stefan Richter <[hidden email]> wrote:

Hi,

as in my answer to your previous mail, I suggest to take a look at https://github.com/mesoshq/flink . Unfortunately, there is not yet a lot documentation about the internals of how this works, so I am also looping in Till who might know more about specific questions about how things work together exactly.

Best,

Stefan

 

Am 26.09.2017 um 09:21 schrieb Rahul Raj <[hidden email]>:

Currently I have a Flink Application Jar file running on Mesos cluster. The flink application simply reads data from Kafka and put it to HDFS.

Now we are planning to create a docker image to  run this application jar file inside docker containers on Mesos cluster via Marathon. 

Below are the questions that I am looking answers for:

1. While building the docker image, how do I include flink-1.3.2 set up and  my mesos config in flink?

2. How shall I run my existing flink application jar?

3. Will running my flink application jar on docker containers will run it on mesos slaves on different docker containers? How docker , Flink, mesos , Marathon will work together in my case?

Rahul Raj

[Rahul Raj]

Hi Stefan,

I have a question in my mid out of curiosity.... Is it possible to run flink application within docker container by using flink cluster set up on host?

Rahul Raj

On 26 September 2017 at 17:29, Stefan Richter <[hidden email]> wrote:

Hi,

if I correctly understood the approach outlined on github, you can start a standalone job manager and the task manager get the JM information either through the provided configuration or through Zookeeper. Take a look at the „running section“, e.g.:

1) „Via Mesos/Marathon: Start a standalone JobManager (you need to replace the flink_recovery_zookeeper_quorum variable with a valid setting for your cluster) [...]“

2) „Via standalone Docker: Start a standalone JobManager (with host networking, binding on 127.0.0.1) […]“

Best,

Stefan

Am 26.09.2017 um 12:43 schrieb Rahul Raj <[hidden email]>:

Hi Stefan,

Thanks a lot for your answer and sharing the link https://github.com/mesoshq/flink. I went through this and saw its spawning Jobmanager and taskmanager. Now I think, this should be happening. First JobManager will be started on flink cluster on one node, then task manager will be started on another node and both should be running in docker containers on different nodes. Now, my question is how flink's JobManager will get to know about the taskManagers as they are in in different docker containers on different nodes? Will it happen via Mesos?

Can we use mesos-appmaster.sh instead which is already built in flink for deployment on mesos?

Rahul Raj  

On 26 September 2017 at 15:32, Stefan Richter <[hidden email]> wrote:

Hi,

as in my answer to your previous mail, I suggest to take a look at https://github.com/mesoshq/flink . Unfortunately, there is not yet a lot documentation about the internals of how this works, so I am also looping in Till who might know more about specific questions about how things work together exactly.

Best,

Stefan

 

Am 26.09.2017 um 09:21 schrieb Rahul Raj <[hidden email]>:

Currently I have a Flink Application Jar file running on Mesos cluster. The flink application simply reads data from Kafka and put it to HDFS.

Now we are planning to create a docker image to  run this application jar file inside docker containers on Mesos cluster via Marathon. 

Below are the questions that I am looking answers for:

1. While building the docker image, how do I include flink-1.3.2 set up and  my mesos config in flink?

2. How shall I run my existing flink application jar?

3. Will running my flink application jar on docker containers will run it on mesos slaves on different docker containers? How docker , Flink, mesos , Marathon will work together in my case?

Rahul Raj

[Stefan Richter]

Hi,

from the top of my head, I cannot see why this should not be possible, task managers just need to be able to connect to their job manager. Unfortunately, I cannot give a real guarantee here because I am not that deeply involved in this aspect of Flink.

Best,

Stefan

Am 27.09.2017 um 12:39 schrieb Rahul Raj <[hidden email]>:

Hi Stefan,

I have a question in my mid out of curiosity.... Is it possible to run flink application within docker container by using flink cluster set up on host?

Rahul Raj

On 26 September 2017 at 17:29, Stefan Richter <[hidden email]> wrote:

Hi,

if I correctly understood the approach outlined on github, you can start a standalone job manager and the task manager get the JM information either through the provided configuration or through Zookeeper. Take a look at the „running section“, e.g.:

1) „Via Mesos/Marathon: Start a standalone JobManager (you need to replace the flink_recovery_zookeeper_quorum variable with a valid setting for your cluster) [...]“

2) „Via standalone Docker: Start a standalone JobManager (with host networking, binding on 127.0.0.1) […]“

Best,

Stefan

Am 26.09.2017 um 12:43 schrieb Rahul Raj <[hidden email]>:

Hi Stefan,

Thanks a lot for your answer and sharing the link https://github.com/mesoshq/flink. I went through this and saw its spawning Jobmanager and taskmanager. Now I think, this should be happening. First JobManager will be started on flink cluster on one node, then task manager will be started on another node and both should be running in docker containers on different nodes. Now, my question is how flink's JobManager will get to know about the taskManagers as they are in in different docker containers on different nodes? Will it happen via Mesos?

Can we use mesos-appmaster.sh instead which is already built in flink for deployment on mesos?

Rahul Raj  

On 26 September 2017 at 15:32, Stefan Richter <[hidden email]> wrote:

Hi,

as in my answer to your previous mail, I suggest to take a look at https://github.com/mesoshq/flink . Unfortunately, there is not yet a lot documentation about the internals of how this works, so I am also looping in Till who might know more about specific questions about how things work together exactly.

Best,

Stefan

 

Am 26.09.2017 um 09:21 schrieb Rahul Raj <[hidden email]>:

Currently I have a Flink Application Jar file running on Mesos cluster. The flink application simply reads data from Kafka and put it to HDFS.

Now we are planning to create a docker image to  run this application jar file inside docker containers on Mesos cluster via Marathon. 

Below are the questions that I am looking answers for:

1. While building the docker image, how do I include flink-1.3.2 set up and  my mesos config in flink?

2. How shall I run my existing flink application jar?

3. Will running my flink application jar on docker containers will run it on mesos slaves on different docker containers? How docker , Flink, mesos , Marathon will work together in my case?

Rahul Raj

[Eron Wright]

There was also a talk about containerization at Flink Forward that touches on some of your questions.

https://www.youtube.com/watch?v=w721NI-mtAA&t=2s&list=PLDX4T_cnKjD0JeULl1X6iTn7VIkDeYX_X&index=33

Eron

On Wed, Sep 27, 2017 at 9:12 AM, Stefan Richter <[hidden email]> wrote:

Hi,

from the top of my head, I cannot see why this should not be possible, task managers just need to be able to connect to their job manager. Unfortunately, I cannot give a real guarantee here because I am not that deeply involved in this aspect of Flink.

Best,

Stefan

Am 27.09.2017 um 12:39 schrieb Rahul Raj <[hidden email]>:

Hi Stefan,

I have a question in my mid out of curiosity.... Is it possible to run flink application within docker container by using flink cluster set up on host?

Rahul Raj

On 26 September 2017 at 17:29, Stefan Richter <[hidden email]> wrote:

Hi,

if I correctly understood the approach outlined on github, you can start a standalone job manager and the task manager get the JM information either through the provided configuration or through Zookeeper. Take a look at the „running section“, e.g.:

1) „Via Mesos/Marathon: Start a standalone JobManager (you need to replace the flink_recovery_zookeeper_quorum variable with a valid setting for your cluster) [...]“

2) „Via standalone Docker: Start a standalone JobManager (with host networking, binding on 127.0.0.1) […]“

Best,

Stefan

Am 26.09.2017 um 12:43 schrieb Rahul Raj <[hidden email]>:

Hi Stefan,

Thanks a lot for your answer and sharing the link https://github.com/mesoshq/flink. I went through this and saw its spawning Jobmanager and taskmanager. Now I think, this should be happening. First JobManager will be started on flink cluster on one node, then task manager will be started on another node and both should be running in docker containers on different nodes. Now, my question is how flink's JobManager will get to know about the taskManagers as they are in in different docker containers on different nodes? Will it happen via Mesos?

Can we use mesos-appmaster.sh instead which is already built in flink for deployment on mesos?

Rahul Raj  

On 26 September 2017 at 15:32, Stefan Richter <[hidden email]> wrote:

Hi,

as in my answer to your previous mail, I suggest to take a look at https://github.com/mesoshq/flink . Unfortunately, there is not yet a lot documentation about the internals of how this works, so I am also looping in Till who might know more about specific questions about how things work together exactly.

Best,

Stefan

 

Am 26.09.2017 um 09:21 schrieb Rahul Raj <[hidden email]>:

Currently I have a Flink Application Jar file running on Mesos cluster. The flink application simply reads data from Kafka and put it to HDFS.

Now we are planning to create a docker image to  run this application jar file inside docker containers on Mesos cluster via Marathon. 

Below are the questions that I am looking answers for:

1. While building the docker image, how do I include flink-1.3.2 set up and  my mesos config in flink?

2. How shall I run my existing flink application jar?

3. Will running my flink application jar on docker containers will run it on mesos slaves on different docker containers? How docker , Flink, mesos , Marathon will work together in my case?

Rahul Raj