Zoomdata error - Connect to localhost:3333 [localhost/127.0.0.1] failed: Connection refused - mongodb

Question

Good morning.
I am an intern currently working on a proof of concept requiring me to use zoomdata to visualize data from elasticsearch on ubuntu 16.04 LTS.
I managed to connect both on docker - in short, each process ran in a separate, isolated container and communicated through ports - but the performance wasn't good enough (the visualisation encountered bugs for files > 25 mb).
So I decided to install zoomdata on my computer (trial, .deb version)
I also installed mongodb first.
However, when I run zoomdata, I have two issues, and I believe that solving the second might solve the first:
-the first is that when I create a new elasticsearch connexion, I enter exactly the same parameters as with docker (I've triple checked, they are accurate):
node name: elasticsearch (the name of my node)
client type : HTTP node
adress: 192.168.10.4 and port: 9200
-the second is when I run zoomdata:
During the initialisation (more accurately, the spark one) I have an error message (more details below):
c.z.s.c.r.impl.CategoriesServiceClient : Attempt: 1 to send
categories registration failed. Connect to localhost:3333
[localhost/127.0.0.1] failed: Connection refused
followed by the same message over and over again (the attempt number changes) as the rest of the program executes normally.
I took a look at the logs - computer(bug) and docker(works).
Note: the SAML error doesn't stop the docker version from working, so unless fixing it fixes other problems It's not my priority.
Computer:
2016-06-15 16:04:06.680 ERROR 1 --- [ main]
c.z.core.service.impl.SamlService : Error initializing SAML.
Disabling SAML.
2016-06-15 15:58:12.125 INFO 8149 --- [ main]
com.zoomdata.dao.mongo.KeyValueDao : Inserting into key value
collection com.zoomdata.model.dto.SamlConfig#4f3431a1
2016-06-15 15:58:12.789 INFO 8149 --- [ main]
c.z.core.init.SystemVersionBeanFactory : Server version 2.2.6,
database version 2.2.6, git commit :
0403c951946e5daf03000d83ec45ad85d0ce4a56, built on 06060725
2016-06-15 15:58:17.571 ERROR 8149 --- [actory-thread-1]
c.z.s.c.r.impl.CategoriesServiceClient : Attempt: 1 to send
categories registration failed. Connect to localhost:3333
[localhost/127.0.0.1] failed: Connection refused
2016-06-15 15:58:17.776 ERROR 8149 --- [actory-thread-1]
c.z.s.c.r.impl.CategoriesServiceClient : Attempt: 2 to send
categories registration failed. Connect to localhost:3333
[localhost/127.0.0.1] failed: Connection refused
2016-06-15 15:58:18.537 INFO 8149 --- [ main]
c.z.c.s.impl.SparkContextManager$2 : Running Spark version 1.5.1
Docker:
2016-06-15 16:04:06.680 ERROR 1 --- [ main]
c.z.core.service.impl.SamlService : Error initializing SAML.
Disabling SAML.
2016-06-15 16:04:06.681 INFO 1 --- [ main]
com.zoomdata.dao.mongo.KeyValueDao : Inserting into key value
collection com.zoomdata.model.dto.SamlConfig#43b09564
2016-06-15
16:04:07.209 INFO 1 --- [ main]
c.z.core.init.SystemVersionBeanFactory : Server version 2.2.7,
database version 2.2.7, git commit :
97c9ba3c3662d1646b4e380e7640766674673039, built on 06131356
2016-06-15
16:04:12.117 INFO 1 --- [actory-thread-1]
c.z.s.c.r.impl.CategoriesServiceClient : Registered to handle
categories: [field-refresh, source-refresh]
2016-06-15 16:04:12.427 INFO 1 --- [ main]
c.z.c.s.impl.SparkContextManager$2 : Running Spark version 1.5.1
The server versions are different (2.2.6 for computer, 2.2.7 for docker) - I'll try to update the computer one but I don't have much hope that it will work.
What I tried already:
-use zoomdata as root: zoomdata refused, and internet told me why it was a bad idea to begin with.
-deactivate all firewalls : didn't do anything.
-search on the internet: didn't manage to solve.
I'm all out of ideas, and would be grateful for any assistance.
EDIT : I updated to 2.2.7, but the problem persists.
I'm wondering if there may be a problem with authorisations (since the connexion is refused).
I also tried disabling SSL on my zoomdata server.
EDIT: after a discussion on the logs and .properties files seen here
the issue is the scheduler service not connecting to mongodb, although zoomdata does connect.
I filled the files following the installation guide but to no avail.

Answer 1

From the logs I see that scheduler cannot connect to mongo because socket exception. Found possible solution here:
stackoverflow.com/questions/15419325/mongodb-insert-fails-due-to-socket-exception
Comment out the line in your mongod.conf that binds the IP to 127.0.0.1. Usually, it is set to 127.0.0.1 by default.
For Linux, this config file location should be be /etc/mongod.conf.
Once you comment that out , it will receive connections from all interfaces.
This fixed it for me as i was getting these socket exceptions as well.