4.3
This topic details some common problems and general solutions for Moab Viewpoint.
In this topic:
4.3.1 Viewpoint does not report any of my jobs or nodes
There are multiple reasons why jobs and nodes might not show up in Viewpoint.
Verify the following:
- Moab HPC Suite Setup
Essentially, there are many communication points in our stack from the point that jobs get submitted to the point they get displayed in Viewpoint.
Please take a look at the following diagram describing our data flow architecture:
Click to enlarge
The Moab Workload Manager will push data into Insight using a ZeroMQ message queue pipe.
Then, Insight will parse that data and insert it into two distinct databases: a PostgreSQL relational database and a NoSQL MongoDB database.
When Viewpoint needs to query information on jobs and nodes, it will communicate with Moab Web Services, which in turn will consume the data directly from the databases (PostgreSQL and MongoDB) where Insight recorded Moab's events.
Failure to configure the communication channels between all these components will result in Viewpoint not being able to display job or node information.
- Hardware Specifications
Another reason why Viewpoint might not be able to show job and node information is that you installed all Moab HPC components in a single machine that is too overloaded.
See 1.1 Server Hardware Requirements for more information.
- RPM Versions
One other common problem customers can experience is that they install incompatible versions of our software components.
Please make sure you are using the same major version across all components (e.g. Moab Workload Manager 9, Moab Web Services 9, Insight 9, etc.).
