Configuration

Click “Configuration >” to view and access various configurations. This opens up a list of nodes that are members of this cluster. The user is presented with options Cluster and Alerts. Refer to the screenshot as shown below.

![] (https://raw.githubusercontent.com/wiki/impetus-opensource/ankush/images/Image79.png) Figure 79: Configuration at Cluster level

Cluster

This provides information about the configuration with which cluster was launched in “preview only” mode. The contents viewed may change depending on configuration values used for cluster deployment & depending on environment of the cluster.

![] (https://raw.githubusercontent.com/wiki/impetus-opensource/ankush/images/Image80.png) Figure 80: Cluster Configuration

Alerts

Alert configuration allows the user to configure alert & warning threshold levels for a cluster utilization in terms of CPU and Memory. This feature enables the user to configure thresholds level of alert & warning for CPU & Memory utilization applicable over all the nodes of the cluster on which it is configured.

Depending upon the values configured, a tile shown on dashboard or at top of the details page change their behavior for representing the state as Running, Critical or Warning. It also captures the user to whom mail is sent pertaining to occurrence of these events.

Critical: Any node of cluster is working with utilization above or equal to Alert level Warning: When any node of the cluster is performing above or equal to the Warning level but below the Alert level Running: When all the nodes of the cluster are working below the Warning level

Note: There is a possibility that even if the utilization of none of the nodes is in alert range, still the cluster is in critical state. The reason for this is issue with services.

![] (https://raw.githubusercontent.com/wiki/impetus-opensource/ankush/images/Image81.png) Figure 81: Alerts Configuration

Note that the refresh interval, warning and alerting thresholds are editable in the above form. In order to make it editable, click on the currently set value, it automatically converts into an editable field as shown below.

![] (https://raw.githubusercontent.com/wiki/impetus-opensource/ankush/images/Image82.png) Figure 82: Alerts - Editable Fields

Also, by default mail is sent to all users of the system. If the user wants to include any other recipient who is not registered (part of) with Ankush, then their email id can be specified in “Email” field (multiple recipients separated with comma). If the “Inform All Administrators” checkbox is unchecked, then mail will be sent only to the recipients mentioned through Email input.

Parameters

This functionality helps the user to modify configuration of components. User can add new parameters or modify values of existing parameters. Parameters from same file are grouped in one section that can be collapsed or expanded.

![] (https://raw.githubusercontent.com/wiki/impetus-opensource/ankush/images/Image83.png) Figure 83: Parameters

Note: This screenshot is taken from a Hadoop Technology cluster.

Add Parameters

Click “Add Parameter” button from Parameters page. Select the file in which pa-rameter needs to be added. Enter details of the new parameter as required. Click Add.

![] (https://raw.githubusercontent.com/wiki/impetus-opensource/ankush/images/Image84.png) Figure 84: Add Parameters

Update Parameters

Note that the parameters are editable fields. The fields can be changed to editable mode by clicking on it. Enter a new required value and click the “Apply” button to apply the modified changes.

Note:

1. The value column for some of the parameters do not change into editable fields. This is because they are not editable.
2. Press Enter after entering/updating parameter value.
3. Ankush updates the parameters after clicking Apply. However, if the technology demands restarting of certain service/cluster for applying those parameter changes, then refer to guidelines as the technology.

![] (https://raw.githubusercontent.com/wiki/impetus-opensource/ankush/images/Image85.png) Figure 85: Update Parameters

Delete Parameters

Clicking "-" button prompts the user confirming the deletion of the parameter. Click Delete to confirm.

![] (https://raw.githubusercontent.com/wiki/impetus-opensource/ankush/images/Image86.png) Figure 86: Delete Parameters