This topic describes the Topology Explorer.
The Topology Explorer is a graphical representation of the interconnected GemFire clusters within their network. It provides a visual representation of the architecture and connections between clusters, aiding in comprehensive network management and troubleshooting.
Understanding the Interface
To access the Topology Explorer, select a cluster from the dropdown menu. This selection sets the initial perspective for generating the network visualization diagram, which provides a high-level overview of the entire network topology, including cluster distribution and interconnections based on the available information. To view the topology from a different cluster’s perspective, choose another cluster from the dropdown.
Cluster Visualization
Each cluster is represented as a distinct node within the interface. Depending on the available information, the cluster label can include:
- The cluster nickname
- The cluster distributed system ID (DSID)
- The member ID
Cluster Connections
Connections between clusters are depicted as arrows, symbolizing the flow of data between them. These arrows are color-coded to convey the status of the connection:
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Green: Indicates a functional connection with both sender and receiver operating as expected.
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Yellow: Indicates that some senders and receivers are functioning incorrectly and further analysis is required.
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Red: Indicates a total connection loss between clusters.
Click on these connections to access detailed information about the connection. A table displays additional details about the cluster’s gateway senders, including:
- ID: The identifier of the sender.
- Member: The member on which the sender is running.
- Queued Events: The number of events queued for sending to the receiver.
- Overflowing to Disk: Whether the sender queue has exceeded memory capacity and is overflowing to disk.
- Connection Status: The connectivity status between the sender and receiver.
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