容器化 akka.net 应用程序后，Akka 消息传递不起作用

Question

I contenarized lighthouse and a akka.net application (batchProcessor) in linux containers. Below it shows both containers are up.

I am also able to connect to lighthouse from Pbm client in my local machine.

But batchprocessor is not able to connect to lighthouse(seed node). Hence, message passing between these multiple clusters is not working. Here is the dockerfile for Lighthouse:

FROM mcr.microsoft.com/dotnet/core/sdk:2.2 AS build-env
WORKDIR /app

ENV ACTORSYSTEM="BatchProcessingSystem"
ENV CLUSTER_SEEDS "[]"
ENV CLUSTER_IP "127.0.0.1"
ENV CLUSTER_PORT "4051"

COPY ./bin/Release/netcoreapp2.2/win10-x64/publish/ /app

EXPOSE 9110 4051
RUN dotnet tool install --global pbm 

ENV PATH="${PATH}:/root/.dotnet/tools"
FROM mcr.microsoft.com/dotnet/core/aspnet:2.2
WORKDIR /app
COPY --from=build-env /app .

ENV CPE_ENVIRONMENT "local"
ENV TNS_ADMIN "C:\oracle"

ENTRYPOINT ["dotnet", "Lighthouse.dll"]

And this is dockerfile for batchprocessor (akka.net application):

FROM mcr.microsoft.com/dotnet/core/sdk:2.2 AS build-env
WORKDIR /app
ENV CLUSTER_SEEDS "akka.tcp://BatchProcessingSystem@127.0.0.1:4051"
ENV CLUSTER_IP "127.0.0.1"
ENV CLUSTER_PORT "9121"

COPY ./bin/Release/netcoreapp2.2/win10-x64/publish/ /app

FROM mcr.microsoft.com/dotnet/core/aspnet:2.2
WORKDIR /app
COPY --from=build-env /app .

ENV CPE_ENVIRONMENT "local"
ENV TNS_ADMIN "C:\oracle"

EXPOSE 9121

ENTRYPOINT ["dotnet", "BatchProcessor.dll"]

Can anyone help me with this?What Am i missing here?

Answer 1

I suppose the problem is in the lighthouse configuration.

ENV CLUSTER_SEEDS "[]"

CLUSTER_SEEDS variable should save the same value for all members in the cluster including the seed nodes(lighthouse in your case). Also, I would recommend to configure logging for debugging purposes as it described in documentation . Akka .net write detailed log of cluster initialization, it might be very helpful in investigation.

Also it's unclear for me that you configure docker file for lighthouse. As i know lighthouse already has an image and all you need is to setup environment variables(ACTORSYSTEM, CLUSTER_IP, CLUSTER_PORT, CLUSTER_SEEDS) at start. You can read about this here .

I hope this helps.