Kibana for ACM dashboards

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This is the 4th blog in a series on the Elastic product stack. This blog will cover the Kibana product.

The series cover:

1. Elasticsearch and Oracle Middleware – is there an opportunity?
2. Installation of Elasticsearch: installation and the indexing of – human generated – documents
3. Elasticsearch and Oracle ACM data: example with ACM data
4. Kibana for ACM dashboards: an example of dashboards with ACM data
5. Logstash and Fusion Middleware: how to get log file data into Elasticsearch
6. Beats and Fusion Middleware: a more advanced way to handle log files

Elastic advertises Kibana as ‘Your Window into the Elastic Stack’. In more detail: ‘Kibana lets you visualize your Elasticsearch data and navigate the Elastic Stack’.

Kibana can be best described as the BI tool for accessing data in Elasticsearch. Lets not dwell too long over big promises, let’s get started!

ela_kibana_overview

This blog continues with the data that was put into Elasticsearch in the previous blog. Now, first install Kibana:

Installation & Start

Version 5.0.0 was released on October 26th 2016:

[developer@localhost ~]$ mkdir kibana
[developer@localhost ~]$ cd kibana/
[developer@localhost kibana]$ mv ~/Downloads/kibana-5.0.0-linux-x86_64.tar.gz .
[developer@localhost kibana]$ tar -xzf kibana-5.0.0-linux-x86_64.tar.gz 
[developer@localhost kibana]$

Start Kibana:

[developer@localhost ~]$ cd
[developer@localhost ~]$ cd kibana/kibana-5.0.0-linux-x86_64/
[developer@localhost kibana-5.0.0-linux-x86_64]$ ls
bin     data         node          optimize      plugins     src
config  LICENSE.txt  node_modules  package.json  README.txt  webpackShims
[developer@localhost kibana-5.0.0-linux-x86_64]$ cd bin
[developer@localhost bin]$ ./kibana
  log   [15:21:17.204] [info][status][plugin:kibana@5.0.0] Status changed from uninitialized to green - Ready
  log   [15:21:17.259] [info][status][plugin:elasticsearch@5.0.0] Status changed from uninitialized to yellow - Waiting for Elasticsearch
  log   [15:21:17.290] [info][status][plugin:console@5.0.0] Status changed from uninitialized to green - Ready
  log   [15:21:17.466] [info][status][plugin:timelion@5.0.0] Status changed from uninitialized to green - Ready
  log   [15:21:17.470] [info][listening]Server running at http://localhost:5601
  log   [15:21:17.471] [info][status][ui settings]Status changed from uninitialized to yellow - Elasticsearch plugin is yellow
  log   [15:21:22.484] [info][status][plugin:elasticsearch@5.0.0] Status changed from yellow to yellow - No existing Kibana index found
  log   [15:21:22.558] [info][status][plugin:elasticsearch@5.0.0] Status changed from yellow to green - Kibana index ready
  log   [15:21:22.559] [info][status][ui settings]Status changed from yellow to green - Ready

First searches

Now, point your browser to http://localhost:5601

See the opening page, which should look something like

ela_kibana_001_index_pattern
On this page you are prompted for an index pattern: the pattern identifies the Elasticsearch indexes that you want to access from Kibana. With the data set from the previous blog, the index pattern that we will use is ‘case*’. Un-check the tickbox ‘index contains time based events’, like below:

ela_kibana_002_index_pattern_completed

The result will look like:

ela_kibana_data_ready

You can check the status page: http://localhost:5601/status.

ela_kibana_status

Now, Kibana is ready to explore the data set that came from the ACM example. Click the ‘Discover’ tab.

First, we will do the same search that we did in the previous blog, but now using Kibana. There, we looked for the word ‘Katwijk’, using a curl command

curl 'localhost:9200/casedata/_search?q=Katwijk&pretty'

In Kibana, that search would look like:

ela_kibana_katwijk_search

Note that we did not indicate the index: it is taken implicitly because we selected an index set to work with.

Next, copy the caseId ’69ebc23b-1e19-4da7-a8ed-544417b8bbd3′ in the search field and observe that 12 search results (json documents) are found:

ela_kibana_caseid_search

 

Data modelling

The above search example shows a sensible search strategy:

  1. first one document that concerns the case that is searched for
  2. search all documents that concern that specific case

In order to make that search strategy work, it is required that all documents of a specific case can be related to eachother. For the case example, this is done with the caseId: all document types have the caseId attribute included!

Visualizing data – completed case activities

Now, let’s move on to the Visualization part of Kibana. We will create a diagram that shows how many case activities have been completed each hour.

First, click the ‘Visualize’ tab:

ela_kibana_visualize_001

Click ‘Area chart’:

ela_kibana_visualize_002

Click ‘case*’:

ela_kibana_visualize_003

And watch the following screen appear:

ela_kibana_visualize_004

For ‘buckets, under ‘Select buckets type, click ‘X-Axis’:

ela_kibana_visualize_005

Configure your buckets like shown below:

ela_kibana_visualize_006

To view the result, press the ‘play’ icon:

ela_kibana_visualize_007

The result looks like shown below:

ela_kibana_visualize_008

Save the visualization by clicking on Save in the upper right corner and giving it a name:

ela_kibana_visualize_009

You may notice some facts about the result:

  • case activities have been completed during about 2.5 days, and during the weekend
  • apart from the start, the amount of completed case activities per hour is more or less constant

Reason for this is that the case data was generated using test scripts.

Visualizing data – completed case activities per activity type

Next, we will make a visualization that shows ‘completed case activities per hour and per activity type’.

We start with the previous visualization:

ela_kibana_visualize_010

Here, click Split Area and then click on ‘Split Area’:

ela_kibana_visualize_011

Now, scroll down and complete like shown below and click ‘play’ again:

ela_kibana_visualize_012

Summary

The first steps with Kibana are promising: easy and quick. Of course, the real proof of the pudding is in the eating. But so far, it is promising. What I didn’t show in the above blog, is the dashboard option. You can make dashboards real quick – it even put a big grin on my face. And then you’ll discover the drill down functionality. And then … oh well – you should just fiddle around with it.

I do think that a critical success factor is in the modelling of the data: ‘better’ data modelling will make for easier queries and better/easier/quicker visualization results.

ela_kibana_visualize_013

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About Author

Luc Gorissen works in IT since 1990. He has held various positions in many areas, and works since 2006 with Oracle Middleware. He likes the challenge of introducing new technologies in large companies. In the last couple of years, Business Process Management and Case Management are his main focus areas.

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