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Chapter 2. Import Cluster
2.1. Importing Cluster
The following procedure outlines the steps to import a Gluster cluster.
Procedure. Importing Cluster
Log in the Web Administration interface.
Figure 2.1. Login Page
In the default landing interface of the Web Administration, click Import Cluster.
Figure 2.2. Import Cluster
The available hosts are listed. By default, Volume profiling is enabled. Click Import to continue.
Figure 2.3. Available Hosts
The cluster import request is submitted. To view the task progress, click View Task Progress.
Figure 2.4. Import Cluster Submitted
The import cluster task is completed.
Figure 2.5. Task Detail
- Navigate to the Clusters tab. The Cluster is successfully imported and ready for use.
Figure 2.6. Cluster Ready
Before initiating Web Administration installation using tendrl-ansible, it is highly recommended to create the Gluster Cluster to be imported first in the absence of an existing one. If the Gluster cluster is created after installation of Web Administration, the cluster import operation may fail. In case of Web Administration manual installation, create the Gluster cluster first and then subsequently install the tendrl-node-agent to avoid cluster import failure.
2.1.1. Volume Profiling
Volume profiling enables additional telemetry information to be collected on a per volume basis for a given cluster, which helps in troubleshooting, capacity planning, and performance tuning.
Volume profiling can be enabled or disabled on a per cluster basis when a cluster is actively managed and monitored using the Web Administration interface.
Note: Enabling volume profiling results in richer set of metrics being collected which may cause performance degradation to occur as system resources, for example, CPU and memory, may get used for volume profiling data collection.
Volume profiling is enabled by default and is seen on the Discovered Hosts interface after clicking the Import Cluster button.
To disable Volume Profiling after the cluster is imported, following these instructions:
Navigate to the Clusters menu from the navigation pane and locate the Cluster. At the right-hand side, click Disable Profiling.
Figure 2.7. Disable Volume Profiling
- A notification appears confirming Volume Profiling is successfully disabled.
Figure 2.8. Volume Profiling Disabled
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