Storm Topologies Layer

Using the tests associated with the Storm Topologies layer (see Figure 1), you can monitor the following:

• Number of tasks completed by the owner (user).

• Size of total memory requested by the owner.

• Size of total memory used by the owner.

• Number of CPU cores requested/used by the owner.

• Size of memory guaranteed for the owner.

• Size of remaining memory to be guaranteed for the owner.

• Count of CPU cores guaranteed for the owner.

• Count of remaining CPU cores to be guaranteed for the owner.

• Number of isolated nodes for the owner.

• Size of heap memory requested by the owner.

• Size of heap memory assigned to the owner.

• Size of off-heap memory requested by the owner.

• Size of off-heap memory assigned to the owner.

• Status of Topology in the target Apache Storm - Is it active, inactive, killed or under re- balancing state.

• Number of Executors and Workers in Storm Topology.

• Number of completed tasks by Storm Topology.

• Count of Nimbus hosts on which the topology code is replicated.

• Size of total memory requested for storm topology.

• Size of total assigned memory for storm topology.

• Size of heap memory requested for storm topology.

• Size of heap memory assigned to storm topology.

• Size of off-heap memory requested for storm topology.

• Size of off-heap memory assigned to storm topology.

• Number of CPU cores requested for storm topology.

• Number of CPU cores assigned to storm topology.

• Maximum time that the Topology has been up since its last reboot.

Figure 1 : The list of tests associated with the Storm Topologies layer