How can I use mesos-execute to run a jar - jar

Question

I have set up my mesos cluser correctly with one master and two slaves. What I am trying to do is use the mesos-execute framework to run jar files on the cluster. I can use it to run simple commands like:
mesos-execute --master=mesosr:5050 --name="simple-test" --command=echo "hello"
Which will run as expected. However if I try to replace that echo "hello" command with something like "java -jar helloWorld.jar" it won't work.
I managed to identify the problem, but I don't know how to fix it. The issue is that the command doesn't run from the home directory, it runs from something similar to this
/var/lib/mesos/slaves/3f5439b1-7fab-45d6-876e-7e75b7c15fc9-S0/frameworks/3f5439b1-7fab-45d6-876e-7e75b7c15fc9-0043/executors/java-test/runs/7c20baff-080f-48ee-95fc-3662c388744b
I got that path by running "pwd" as a command on mesos-execute.
Now, my question is how do I get out from there? cd doesn't work.
Is there any way for me to get to the home folder or to a special folder where I can put my jars to make them accessible to mesos-execute?
The use case for this application is that there will be a lot of small jar files that will have to be run on the cluster. They don't have to stay alive, so I am not using anything like Marathon for these jars.
Thank you.

Answer 1

From mesos-execute -h
--task_group=VALUE The value could be a JSON-formatted string of TaskGroupInfo or a file path containing the JSON-formatted TaskGroupInfo. Path must be of the form file:///path/to/file or /path/to/file. See the TaskGroupInfo message in mesos.proto for the expected format. NOTE: agent_id need not to be set.
Example:
{
"tasks":
[
{
"name": "Name of the task",
"task_id": {"value" : "Id of the task"},
"agent_id": {"value" : ""},
"resources": [{
"name": "cpus",
"type": "SCALAR",
"scalar": {
"value": 0.1
}
},
{
"name": "mem",
"type": "SCALAR",
"scalar": {
"value": 32
}
}],
"command": {
"value": "sleep 1000"
}
}
]
}
What interest you most is command part. There you can define your task with all files it need to download to run correctly. All possible configuration options for command are specified in CommandInfo.

Answer 2

Ok, so I figured out how to do it.
I was going about it all wrong, perhaps not the best idea to tackle a new thing at the end of a workday.
What I was trying to do was change directory to the home directory as part of the mesos-execute command. This is not allowed. The way to run a jar that is located in the home directory is to specify the path of the jar in the java -jar command. So the final command, that works, looks like this:
mesos-execute --master=mesosr:5050 --name="simple-test" --command="java -jar /home/user/jarFile.jar"
This works, and the jar is executed on the cluster.