Understanding the Storm UI
The Storm UI depicts some very vital and important aspects of the Storm cluster and topology. Some of the aspects that Storm depicts form the cardinal rules for optimizing the performance. But, before we talk about the performance, let's befriend the Storm UI and its parameters through series of captures from the Storm UI and descriptions of the same.
Storm UI landing page
The landing page on Storm UI first talks about Cluster Summary, as shown in the following screenshot:
A brief description of the columns available in Cluster Summary, is as follows:
Version: As the name suggests, this captures the version of Storm on the UI node. One of the prerequisites for a cluster is that the version of Storm should be same on all the nodes. Thus, this clearly denotes the version of Storm in the cluster.
Nimbus uptime: This denotes the duration (in days, hours, minutes, and seconds) for which the Nimbus instance has been running. Nimbus being the coordinator daemon that essentially...
