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1 -Setting up Failover - Deploy Phase
1 +intermediate-runtime-management-deploy-agent
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1 -Main.eMagiz Academy.Microlearnings.Intermediate Level.Grouping and Failover.WebHome
1 +Main.eMagiz Academy.Microlearnings.Intermediate Level.eMagiz Runtime Management.WebHome
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1 -XWiki.dfirdausy
1 +XWiki.eMagiz
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1 -{{container}}
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4 4  
5 -In the previous microlearning, we discussed what needs to be done in the Create phase to enable failover for systems that are configured to have them in the Design phase. Next to that, we also discussed that setting up this failover functionality in your model requires you to execute some steps in your Design, Create, and lastly Deploy phase. Picking up from what we have toggled in the Create phase, in this microlearning, we will focus on the steps and configurations that you have to make in the Deploy phase to activate the active/passive failover functionality.
3 +In some cases, the complete stack trace must be logged when something goes wrong on runtime. In eMagiz, only the top-level information is shown, and sometimes the entire stack trace. When this particular runtime runs on-premises, you can see the complete logging on the runtime level. In this microlearning, we will learn how to find the log and look through the log to find the corresponding error and subsequently analyze that error.
6 6  
7 7  Should you have any questions, please get in touch with [[academy@emagiz.com>>mailto:academy@emagiz.com]].
8 8  
9 9  == 1. Prerequisites ==
10 10  
11 -* Intermediate knowledge of the eMagiz platform.
9 +* Intermediate knowledge of the eMagiz platform
12 12  
13 13  == 2. Key concepts ==
14 14  
15 -This microlearning describes what configuration that you will have to do in the Deploy phase, based on what you have configured in the Design and Create phase, to enable failover for systems connecting with your model. The grouping and failover functionality is relevant when faced with maintenance and outages of systems connected to your model. The failover functionality assists in that case and allows you to have a fallback option on an active connection.
13 +This microlearning describes how the eMagiz Deploy agent is installed on the on-premises server where a eMagiz runtime should run on. Please note that the eMagiz Deploy agent requires a valid Docker installation on the on=-premises server. The detailed install guide can be found on
16 16  
17 -== 3. Deploy Phase Configuration ==
15 +OnfigfueMain.eMagiz Academy.Microlearnings.Expert Level.Solution Architecture.expert-solution-architecture-onpremises-installguide
18 18  
19 -== 3.1 Deploy Architecture ==
17 +== 3. Interpreting log on-premise ==
20 20  
21 -After finishing up your configuration in the Create phase, you can then move to your Deploy>Architecture. Here, you will see the new router containers, which we have seen in the Design>Architecture, to be added to your external machines. When you press "Start Editing" in this page, and then press "Apply to environment", you will be faced with a pop-up page that informs you that these router containers will be created for this specific environment as shown in the screenshot below.
19 +=== 3.7 eMagiz Docker agent installation ===
22 22  
23 -[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-setting-up-failover-deploy-phase-router-containers.png]]
21 +eMagiz needs to install a specific agent in the Docker instance that allows to download runtime images that needs to be installed on the Docker instance. The specific command to run inside the Docker instance is specific for the machine that is configured inside eMagiz Design & Deploy Architectures. It can be found inside the eMagiz iPaaS portal under Deploy Architecture. At the runtime connector, there is a right click option called Deploy Agent. That presents either the command or the location where that agent is installed.
24 24  
25 -Once you have applied the changes, if you go to the "Details" of each of those machines via right-cliking them, then you can find and set, for each failover runtime, the preferred machine to be the leader. As an example shown in the screenshot below, there are two runtimes that are enabled for failover and you can select whether that runtime running in that "External 01" machine is the preferred leader or the backup, or if you want to reset it back to "None".
23 +[[image:Main.Images.Microlearning.WebHome@expert-solution-architecture-onpremises-installguide-deployagent.png]]
26 26  
27 -[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-setting-up-failover-deploy-phase-failover-preference.png]]
25 +After installing the agent, you can use the Docker cheat sheet below to see if the docker containers are running and/or images are available.
28 28  
29 -When you have made your decision, and assuming that your machines are already deployed and running, then you can move to the other page discussed in the next section.
30 -
31 -== 3.2 Deployment Plan ==
32 -
33 -== 3.3 Deploy Release ==
34 -
35 35  == 4. Key takeaways ==
36 36  
37 -* Grouping is beneficial when external systems go through maintenance or downtime.
38 -* Failover can have the additional benefit of having a fallback scenario while still adhering to the requirement that there can only be one active connection at a time.
39 -* The role naming in both grouping and failover is crucial. The whole name needs to be matched fully to make it work.
40 -* For the infra configuration of the failover setup, we have a store item that you can use.
29 +* The karaf.log can be found within the folder called log under the folder data
30 +* You can search the log with the help of tools such as Notepad++
31 +* By looking at the timestamp in the eMagiz Manage Log, you can run a focused search
41 41  
42 -== 5. Suggested Additional Readings ==
33 +== 6. Suggested Additional Readings ==
43 43  
44 -If you are interested in this topic and want more information, please read the help text provided by eMagiz and check out these links:
35 +No suggested additional readings for this microlearning.
45 45  
46 -* [[eMagiz Store (Menu)>>doc:Main.eMagiz Store.WebHome||target="blank"]]
47 -** [[Accelerators (Navigation)>>doc:Main.eMagiz Store.Accelerators.WebHome||target="blank"]]
48 -*** [[Active/Passive Failover (Explanation)>>doc:Main.eMagiz Store.Accelerators.Active-Passive Failover.WebHome||target="blank"]]
49 -* [[Crash Courses (Menu)>>doc:Main.eMagiz Academy.Microlearnings.Crash Course.WebHome||target="blank"]]
50 -** [[Crash Course Platform (Navigation)>>doc:Main.eMagiz Academy.Microlearnings.Crash Course.Crash Course Platform.WebHome||target="blank"]]
51 -*** [[Support objects - Introduction (Explanation)>>doc:Main.eMagiz Academy.Microlearnings.Crash Course.Crash Course Platform.crashcourse-platform-create-support-objects-introduction||target="blank"]]
52 -*** [[Promote flows to deploy (Explanation)>>doc:Main.eMagiz Academy.Microlearnings.Crash Course.Crash Course Platform.crashcourse-platform-create-promote-flows-to-deploy||target="blank"]]
53 -* [[Intermediate Level (Menu)>>doc:Main.eMagiz Academy.Microlearnings.Intermediate Level.Grouping and Failover.WebHome||target="blank"]]
54 -** [[Grouping and Failover (Navigation)>>doc:Main.eMagiz Academy.Microlearnings.Intermediate Level.Grouping and Failover.WebHome||target="blank"]]
55 -*** [[Deploy Possibilities (Explanation)>>doc:Main.eMagiz Academy.Microlearnings.Intermediate Level.Grouping and Failover.intermediate-grouping-and-failover-deploy-possibilities.WebHome||target="blank"]]
56 -** [[eMagiz Cloud Management (Navigation)>>doc:Main.eMagiz Academy.Microlearnings.Intermediate Level.eMagiz Cloud Management.WebHome||target="blank"]]
57 -* [[Failover (Search Results)>>url:https://docs.emagiz.com/bin/view/Main/Search?sort=score&sortOrder=desc&highlight=true&facet=true&r=1&f_space_facet=0%2FMain.&l_space_facet=10&f_type=DOCUMENT&f_locale=en&f_locale=&f_locale=en&text=%22Failover%22||target="blank"]]
58 -)))
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60 -{{toc/}}
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37 +* [[Container commands on containers>>https://docs.docker.com/engine/reference/commandline/ps/||target="blank"]]
38 +* [[Logging commands on containers>>https://docs.docker.com/engine/reference/commandline/logs/||target="blank"]]
39 +)))((({{toc/}}))){{/container}}{{/container}}