Shulou(Shulou.com)05/31 Report--

This article will explain in detail what the storm ui indicators are, and the editor thinks it is very practical, so I will share it with you for reference. I hope you can get something after reading this article.

1.Storm ui Home Page

It is mainly divided into 4 parts: Cluster Summary,Topology summary,Supervisor summary,Nimbus Configuration, as shown in the following figure:

Cluster Summary

Version: storm version number

Nimbus uptime: nimbus run time

Number of supervisor in Supervisor:storm cluster

User slots: number of slots used Free slots: number of remaining slots

Total slots: the total number of slots (the number of ports configured by the supervisor.slots.ports attribute of the profile, the sum of the cluster)

Executors: number of threads

Tasks: number of tasks

Topology summary

Name: topology name

Id: system-generated topology id

Status: running status (ACTIVE, INACTIVE, KILLED, REBALANCING)

Uptime: run time

Num workers: number of workers running

Num Exectors: number of threads running by workers

Num Tasks: number of tasks run by Excetors

Supervisor summary

Id: system-generated supervisor Id

Host: hostname of the supervisor (host)

Uptime: run time

Number of ports of Slots:supervisor

User slots: number of ports used

Nimbus Configuration

Is the configuration file information in the nimbus cluster, which is not explained in detail (the key can be seen in the storm installation section)

2.Topology page

The Topology page is mainly divided into six blocks: Topology summary,Topology actions,Topology stats,Spouts (All time), Bolts (All time), Topology Visualization,Topology Configuration

Topology summary

Same as the Topology summary in the home page

Topology actions

Topology running status, which can be changed manually (ACTIVE, DEACTIVATE, KILLED, Rebalance)

Topology stats

Window: time window showing the health status of 10m, 3h, 1d and all time

Emitted: number of emit tuple

Transferred: transferred tuple number, the difference from emitted: if one task,emitted, one tuple to two task, then the transferred tuple number is twice the emitted tuple number.

Complete latency: the average time from spout emitting a tuple to spout ack this tuple

Acked: number of successful tuple

Failed: number of failed tuple

Spouts (All time)

Id: spout id

Executors: number of threads

Emitted: number of emit tuple

Transferred: number of transferred tuple

Complete latency: the average time from spout emitting a tuple to spout ack this tuple

Acked: number of successful tuple

Failed: number of failed tuple

Error Host: the machine on which the error occurred

Error Port: the port number on which the error occurred

Last error: recent number of errors

Bolts (All time)

Execute latency (ms): the average time that bolt executes the execute method

Executed: number of tuple processes

Process latency (ms): the average time that bolt received a tuple to bolt ack this tuple

Note: other fields have been mentioned above, so they are not explained.

Topology Visualization

Topology diagram display

Topology Configuration

Configuration description, not in detail

Note the spout,bolt page can refer to the field description in spout,bolt in the topology page.

This is the end of this article on "what are the storm ui indicators?". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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