topic Re: Appdynamics agent cannot be initialized in Splunk AppDynamics

Appdynamics agent cannot be initialized

CommunityUser — Wed, 08 Aug 2018 16:56:38 GMT

I'm getting the below error when I initialize appdynamics.

Appdynamics agent cannot be initialized due to Error: Error loading shared library ld-linux-x86-64.so.2: No such file or directory (needed by /src/node_modules/appdynamics-protobuf/build/Release/protobuf_for_node.node)
Error: Error loading shared library ld-linux-x86-64.so.2: No such file or directory (needed by /src/node_modules/appdynamics-protobuf/build/Release/protobuf_for_node.node)
    at Object.Module._extensions..node (module.js:681:18)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)
    at Module.require (module.js:596:17)
    at require (internal/module.js:11:18)
    at tryRequire (/src/node_modules/appdynamics-protobuf/index.js:15:11)
    at requireProtobufBinding (/src/node_modules/appdynamics-protobuf/index.js:23:18)
    at Object.<anonymous> (/src/node_modules/appdynamics-protobuf/index.js:33:18)
    at Module._compile (module.js:652:30)

And My Node.js code looks like this.

require("appdynamics").profile({
	controllerHostName: 'host',
	controllerPort: 8090,
	accountName: 'ac-name',
	accountAccessKey: 'I-Have-Token',
	applicationName: 'csc',
	tierName: 'TEST',
	nodeName: 'process', // The controller will automatically append the node name with a unique number
	debug: true
});

What's the issue here?

Any dependency required?

node module version: 4.5.2

Re: Appdynamics agent cannot be initialized

Kyle_Furlong — Wed, 08 Aug 2018 17:03:54 GMT

Hi Santosh,

Where did you run npm install? Was it the same system which runs the app?

Regards,

Kyle

Re: Appdynamics agent cannot be initialized

CommunityUser — Thu, 09 Aug 2018 03:47:06 GMT

Yes!!!

Re: Appdynamics agent cannot be initialized

Abhimanyu_Arora — Thu, 09 Aug 2018 06:12:06 GMT

Hi Santosh,

What linux distribution are you using here to run the app?

As the agent is only compatible with Linux distribution based on glibc 2.5+. Distribution based on musl_libc such as Alpine is not supported directly.

Regards

Abhimanyu

Re: Appdynamics agent cannot be initialized

CommunityUser — Thu, 09 Aug 2018 06:23:19 GMT

I'm deploying app to Docker pod.
Using node:8.10.0 image.

Re: Appdynamics agent cannot be initialized

Abhimanyu_Arora — Thu, 09 Aug 2018 06:49:22 GMT

Hi Santosh,

Can you share the content of your docker file here? We want to understand how exactly are you trying to build the application.

Thanks

Abhimanyu

Re: Appdynamics agent cannot be initialized

CommunityUser — Thu, 09 Aug 2018 06:59:42 GMT

FROM node:8.10.0 as ubuntu

VOLUME /root/.npm
ADD .npmrc /root/.npmrc

WORKDIR /src
ADD package.json /src/package.json

RUN npm install

FROM node:8.10.0-alpine as alpine
RUN npm install -g nodemon
COPY --from=ubuntu /src /src

WORKDIR /src

EXPOSE 8888 8889
CMD [ "node", "app.js" ]

Do you see any issues here?

Re: Appdynamics agent cannot be initialized

Abhimanyu_Arora — Thu, 09 Aug 2018 13:16:21 GMT

Hi Santosh,

So here we see the problem. You are running the application on Alpine based nodejs docker image; Alpine uses musl_libc, but our agent requires glibc 2.5+. You can try using node:8-slim,which is a debian-based

image and uses glibc

Thanks

Abhimanyu

Re: Appdynamics agent cannot be initialized

CommunityUser — Mon, 13 Aug 2018 08:55:16 GMT

Hi Abhimanyu,

Is there any enhancements or look back to develop agent using Alpine based images or developing musl_libc for agent.

Thanks,

Santhosh

Re: Appdynamics agent cannot be initialized

Abhimanyu_Arora — Mon, 13 Aug 2018 13:54:13 GMT

Hi Santosh,

Unfortunately, there is nothing for now that is in the roadmap, as far as I know. But may you can give a try to glibc contained version of Alpine - https://hub.docker.com/r/frolvlad/alpine-glibc/ - if this fits your use-case. Also, a document to run glibc based programs on Alpine : - https://wiki.alpinelinux.org/wiki/Running_glibc_programs

In case you wish to try these route and hitting issues, please let me know if I can be of any help.

Thanks

Abhimanyu