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Last modified by Erik Bakker on 2024/09/27 14:07
From version 28.1
edited by Danniar Firdausy
on 2024/09/25 10:59
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To version 28.19
edited by Danniar Firdausy
on 2024/09/25 13:27
Change comment: There is no comment for this version

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1 -Setting up Failover - Design Phase
1 +Setting up Failover - Create Phase
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1 1  {{container}}
2 2  {{container layoutStyle="columns"}}
3 3  (((
4 -eMagiz flows, or more specifically, the flow's inbound component(s), can be grouped. The effect is that you can later in [[Deploy>>doc:Main.eMagiz Academy.Microlearnings.Intermediate Level.Grouping and Failover.intermediate-grouping-and-failover-deploy-possibilities.WebHome||target="blank"]], control them as one entity. This is mainly beneficial when faced with substantial maintenance or outage of systems connected to your eMagiz model.
5 5  
6 -Building on this functionality, you can even configure the group to run in an active/passive failover mode when you activate the multiple runtimes option on your runtime, and each separate runtime is deployed on another machine. The failover functionality is not only relevant in cases of server maintenance. It can also assist you when you want to exchange data with a system that allows only one active connection. Should this connection be business-critical, you can use this failover functionality to create a passive failover situation that will take over when the active connection breaks down (regardless of the reason).
5 +In the previous microlearning, we discussed what situation that failover mode will be beneficial as well as the settings that need to be configured in the Design phase. Next to that, we also discussed that setting up this failover functionality in your model requires you to first execute some steps in your Design, Create, and lastly Deploy phase. Picking up from what we have discussed previously in the Design phase, in this microlearning, we will focus on configuring your setup in the Create phase if you want to activate the active/passive failover configuration.
7 7  
8 -In this microlearning, we will focus on configuring the flow to group various inbound components and configure the flow (including the infra) if you want to activate the active/passive failover configuration.
9 -
10 10  Should you have any questions, please get in touch with [[academy@emagiz.com>>mailto:academy@emagiz.com]].
11 11  
12 12  == 1. Prerequisites ==
13 13  
14 -* Intermediate knowledge of the eMagiz platform
11 +* Intermediate knowledge of the eMagiz platform.
15 15  
16 16  == 2. Key concepts ==
17 17  
18 -This microlearning describes how to configure (parts of) your flow(s) to set up the grouping and, if needed, the failover functionality on the flow level. The grouping 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.
15 +This microlearning describes what configuration that you will have to do in the Create phase, based on what you have configured in the Design 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.
19 19  
20 -== 3. Flow Configuration ==
17 +== 3. Create Phase Configuration ==
21 21  
22 -== 3.1 Grouping ==
19 +== 3.1 Settings ==
23 23  
24 -To configure grouping, we need to open the flow designer of the flow in Create. We want to edit and enter "Start Editing" mode. On the inbound component(s) in the flow, we now have an "Advanced" tab that allows you to configure the grouping information.
21 +After finishing up your configuration in the Design phase, you can then go to the Settings page on the top right corner of the Create phase. There,
25 25  
26 -[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-flow-configuration-starting-point.png]]
23 +[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-setting-up-failover-design-phase-solution-design.png]]
27 27  
28 -{{info}}Note that the options above are available in all inbound components. The one chosen above is simply an illustration of how to configure.{{/info}}
25 +{{info}}Systems with the failover option enabled must have "Number of runtimes" exactly 2 and must be placed on an external machine in the Architecture panel.{{/info}}
29 29  
30 -Once on the "Advanced" tab, you must define the group name. You can determine the group name if this is the first flow you change. In all subsequent flows, you want to add to the same group, you must use the **same** group name.
27 +== 3.2 Design Architecture ==
31 31  
32 -[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-flow-configuration-define-group-name.png]]
29 +Once the previous step is done, the next step is to configure your Design>Architecture. Here, you first need to "Start Editing" and then press "Apply settings" on your bottom left corner. Afterward, you will be faced with a pop-up page informing you that failover will be enabled on the system connector containers that you have previously toggled in Design>Solution Design (see the screenshot below as an example).
33 33  
34 -Once filled in, ensure that the auto startup configuration is set to Yes to ensure that, on default, all flows within the group start up when the container is started.
31 +[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-setting-up-failover-design-phase-design-architecture.png]]
32 +
33 +Once you applied the changes, then your Design>Architecture in that environment, will get new router containers placed in your external machines (see the screenshot below as an example). These router containers are responsible for ... .
35 35  
36 -[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-flow-configuration-define-auto-startup.png]]
35 +[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-setting-up-failover-design-phase-routers.png]]
37 37  
38 -Within a runtime context, you can add multiple groups that can be stopped and started separately from each other. In this example, we would also like to have a group for our exits to stop them if the connecting system undergoes maintenance or is down to store the messages in the queue.
37 +When you have done that and satisfied with your landscape configuration, then you are finished in the Design phase and can proceed to the next configuration in the Create phase.
39 39  
40 -[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-flow-configuration-starting-point-exit.png]]
41 -
42 -[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-flow-configuration-other-group.png]]
43 -
44 -== 3.2 Failover ==
45 -
46 -If you want to expand the grouping functionality to include an active/passive failover component, you need to change the settings on the inbound component. Apart from specifying the group name, you need to configure the auto-startup option on "No" so the failover configuration can take the correct actions in all situations.
47 -
48 -[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-flow-configuration-failover-example-group.png]]
49 -
50 -[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-flow-configuration-failover-other-group.png]]
51 -
52 -{{info}}Note that each group within a single runtime that you want to treat differently needs to have a **unique** name.{{/info}}
53 -
54 -== 3.3 Failover Infra ==
55 -
56 -The configuration of the infra flow of the runtime for which you want to configure the failover is detailed and only works if you configure all support objects correctly. Although we explain the various steps in the documentation, we advise utilizing the [[store item>>doc:Main.eMagiz Store.Accelerators.Active-Passive Failover.WebHome||target="blank"]] we created for this that will guide you in setting this up correctly.
57 -
58 -The configuration consists of at least three separate support objects. Two are needed once (infinispan cache manager and clustered lock registry), whereas the other is required per unique group you have defined within the context of your runtime. So, if you have two unique group names within the runtime, you need two leader initiator support objects.
59 -
60 -{{info}}When using this configuration across multiple runtimes on the same machines you need to take the following into account.
61 - * Each container needs a different port to communicate through. This can be configured by adding a [[route>>doc:Main.eMagiz Academy.Microlearnings.Intermediate Level.eMagiz Cloud Management.intermediate-emagiz-cloud-management-routes||target="blank"]] in Deploy Architecture
62 - * Each container needs their own cluster. This can be achieved by providing unique names for the cluster when configuring the Infinispan Cache Manager (via the [[store item>>doc:Main.eMagiz Store.Accelerators.Active-Passive Failover.WebHome||target="blank"]]){{/info}}
63 -
64 -=== 3.3.1 Infinispan Cache Manager ===
65 -
66 -Given this, let us first look at the Infinispan cache manager. You can add this support object in the [[standard manner>>doc:Main.eMagiz Academy.Microlearnings.Crash Course.Crash Course Platform.crashcourse-platform-create-support-objects-introduction||target="blank"]] by searching for "infinispan cache manager."
67 -
68 -[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-flow-configuration-cache-manager-search-result.png]]
69 -
70 -Once found, give it a name and fill in a cluster name.
71 -
72 -[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-flow-configuration-cache-manager-basic.png]]
73 -
74 -Once done, switch to the "Advanced" tab, select the option "TCP Ping," and fill in the "Host address" and "Other host addresses". Once filled in, press Save to keep your changes.
75 -
76 -[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-flow-configuration-cache-manager-advanced.png]]
77 -
78 -{{warning}}Please note the following when configuring the values for the host and other host address(es):
79 -* The relevant values in case of running on-premise should be requested internally with your infrastructure provider
80 -* The relevant values in case of running in the cloud can be requested via eMagiz
81 -* The "Other host addresses" value **needs** to include a reference to the port through which both hosts communicate.{{/warning}}
82 -
83 -=== 3.3.2 Clustered Lock Registry ===
84 -
85 -Now that we have the cache manager, we can configure the next support object on our list, the clustered lock registry. You can add this support object in the [[standard manner>>doc:Main.eMagiz Academy.Microlearnings.Crash Course.Crash Course Platform.crashcourse-platform-create-support-objects-introduction||target="blank"]] by searching for "lock registry."
86 -
87 -[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-flow-configuration-lock-registry-search-result.png]]
88 -
89 -Once found, name it and select the cache manager support object you created.
90 -
91 -[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-flow-configuration-lock-registry-basic.png]]
92 -
93 -=== 3.3.3 Leader Initiator ===
94 -
95 -Lastly, we need to configure a leader initiator for each **unique** group we have defined within the context of the runtime, and that uses the failover functionality. You can add this support object in the [[standard manner>>doc:Main.eMagiz Academy.Microlearnings.Crash Course.Crash Course Platform.crashcourse-platform-create-support-objects-introduction||target="blank"]] by searching for "leader."
96 -
97 -[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-flow-configuration-leader-initiator-search-result.png]]
98 -
99 -Once found, give it a name, define the role name (which should **exactly** match the name you gave in the inbound components), and link it to the lock registry.
100 -
101 -[[image:Main.Images.Microlearning.WebHome@grouping-and-failover--intermediate-grouping-and-failover-flow-configuration-leader-initiator-basic.png]]
102 -
103 103  == 4. Key takeaways ==
104 104  
105 105  * Grouping is beneficial when external systems go through maintenance or downtime.