Hazelcast Docker Image - YAML configuration

[miloss....@gmail.com]

Hello.

I'm using Kubernetes in Hazelcast using image  hazelcast/hazelcast:3.12.5 from https://hub.docker.com/r/hazelcast/hazelcast/tags.  Everything works OK with XML configuration.

However I would like to use YAML configuration. Is it somehow possible in combination with Hazelcast image? I'm always getting: "com.hazelcast.core.HazelcastException: Config file at '/data/hazelcast/hazelcast.xml' doesn't exist."

Thank you for your response.

Best regards,

Milos.

[Rafal Leszko]

Hi Milos,

Yes, it is possible. You would usually:

1. Create a ConfigMap with your Hazelcast configuration

2. Mount into your Pod/Container

3. Specify `-Dhazelcast.config=<path-to-mounted-yaml>`

The best to check how to do it is to look at our Helm Chart, we use YAML there:

https://github.com/hazelcast/charts/tree/master/stable/hazelcast

Cheers,

Rafał 

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Rafał Leszko

Software Engineer

ra...@hazelcast.com

@RafalLeszko

[miloss....@gmail.com]

Thank you. It helped me quite a lot.

There is one more thing I would like to ask. I'm using hazelcast image version 3.12.5 from https://hub.docker.com/r/hazelcast/hazelcast

Based on the description by default POD is supposed to take up to 80% memory. However it seems it doesn't. 

I tried to set "XX:MaxRAMPercentage" but I got: "Improperly specified VM option"

Have you heard about similar problem.

Thank you for your response in advance.

Regards,

Milos.

On Monday, January 13, 2020 at 5:24:44 PM UTC+1, Rafal Leszko wrote:

Hi Milos,

Yes, it is possible. You would usually:

1. Create a ConfigMap with your Hazelcast configuration

2. Mount into your Pod/Container

3. Specify `-Dhazelcast.config=<path-to-mounted-yaml>`

The best to check how to do it is to look at our Helm Chart, we use YAML there:

https://github.com/hazelcast/charts/tree/master/stable/hazelcast

Cheers,

Rafał 

On Mon, Jan 13, 2020 at 5:20 PM <miloss....@gmail.com> wrote:

Hello.

I'm using Kubernetes in Hazelcast using image  hazelcast/hazelcast:3.12.5 from https://hub.docker.com/r/hazelcast/hazelcast/tags.  Everything works OK with XML configuration.

However I would like to use YAML configuration. Is it somehow possible in combination with Hazelcast image? I'm always getting: "com.hazelcast.core.HazelcastException: Config file at '/data/hazelcast/hazelcast.xml' doesn't exist."

Thank you for your response.

Best regards,

Milos.

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[Rafal Leszko]

Hi Milos,

For the default 80%, I guess the change was not released yet in 3.12.5. You can try it in the `latest` image.

If you want to use 80% in the 3.12.5 version, please add the following env variable: JAVA_OPTS='-XX:MaxRAMPercentage=80.0'. It actually should work fine.

Cheers,

Rafał

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[miloss....@gmail.com]

Thank you very much. 

To view this discussion on the web visit https://groups.google.com/d/msgid/hazelcast/9021737b-9b70-4436-b863-9d8faa761638%40googlegroups.com.