Oracle Coherence Servers Monitoring
Overview
Applications Manager provides out-of-the-box performance metrics and helps you visualize the health and availability of an Oracle coherence server farm. Using the Oracle Coherence monitoring utility provided by Applications Manager, will help to obtain a deep insight into health and performance of complex Coherence implementations. Database administrators can login to the web client and visualize the status and Oracle coherence performance metrics.
Creating a new Oracle Coherence Monitor
Supported Versions: Oracle Coherence 14.1.x and below
Prerequisites for monitoring Oracle Coherence metrics: Ensure that you enable JMX for Oracle Coherence monitoring. For you to create a new Oracle Coherence monitor, you should have admin privileges.
Using the REST API to add a new Oracle Coherence monitor:Click here
- Click on New Monitor link.
- Select Oracle Coherence.
- Enter the Display Name of the monitor
- Enter the IP Address or hostname of the host.
- Enter the JMX Port in which the JMX is running.
- Enter the Additional JMX Port in which the JMX is already running in any of the other machine of the same cluster.
- Choose the Credential Details either use below credentials or select from credential list
- Enter the Username and Password.
- Enter JNDI Path (eg.) /jmxrmi
- Enter the polling interval time in minutes.
- Choose the Monitor Group from the combo box with which you want to associate Oracle database server Monitor (optional). You can choose multiple groups to associate your monitor.
- Click Add Monitor(s). This discovers Oracle database server from the network and starts monitoring them.
Note:- To create a new Oracle Coherence monitor, you should have admin privileges.
- Jconsole can also be used to access the Mbeans.
- In case you are unable to add the monitor even after enabling JMX, try providing the below argument:
-Djava.rmi.server.hostname=[YOUR_IP]
Monitored Parameters
- Availability tab gives the Availability history for the past 24 hours or 30 days.
- Performance tab gives the Health Status and events for the past 24 hours or 30 days.
- List view enables you to perform bulk admin configurations.
Click on the individual monitors listed, to view the following information.
Cluster Details
| Attribute Name | Description |
|---|
| ClusterName | Name of Cluster |
| Cluste Size | Size of Cluster |
| LocalMemberID (Management ID) | Member ID of the Node to which the JMX gets Connected |
| OldestMemberID | The Node ID that is Running at First |
| MemberDepartureCount | Number of nodes that gets Departed |
| Version | Version of Oracle Coherence |
| LicenseMode | License Mode Either Development or Production or Evaluation |
| DistributedServiceCount | Number of Distributed Service that is Configured |
| NonDistributedServiceCount | Number of Replicated Based Service that is Configured |
| ExtendServiceConnection | Extend Service Connection Count |
Partition Assignment
| Attribute Name | Description |
|---|
| CoordinatorId | OwnerShip Distribution Co-Ordinator |
| ServiceMachineCount (Storage Machine Count) | Number of Service Machine |
| ServiceNodeCount | Number of Service Node |
| StrategyName | Strategy Name |
| HAStatus | Status of Storage Backups |
| Service Name | Name of Service |
Distributed and Replicated Services
| Attribute Name | Description |
|---|
| StorageEnabled | Whether Storage enabled or not |
| MessagesLocal (Number of Messages) | Number of Local Messages in Node |
| MessagesReceived | Number of Messages Received |
| MessagesSent | Number of Messages Sent |
| PartitionsAll | Partition All |
| PartitionsEndangered | Endangered Partitions |
| PartitionsVulnerable | Vulnerable Partitions |
| ServiceName | Name of Service |
| StatusHA | Status of Node |
| Type | Type of Service |
| Unicast | Unicast address |
Extend Connection Manager
| Attribute Name | Description |
|---|
| ConnectionTimeMillis | Amount of milliseconds of Connection |
| TotalMessagesReceived | Total Messages Received |
| TotalMessagesSent | Total Messages Sent |
| TotalBytesReceived | Total Bytes Received |
| TotalBytesSent | Total Bytes Sent |
| RemoteAddress | Remote Address |
| Timestamp | Time of Connection Establishment |
ExtendTcpProxyService
| Attribute Name | Description |
|---|
| ConnectionCount | Number of Connection |
| UnauthorizedConnectionAttempts | Unauthorized Connection Attempts |
| TotalMessagesSent | Total Messages Sent |
| TotalMessagesReceived | Total Messages received |
| TotalBytesReceived | Total Bytes Received |
| TotalBytesSent | Total Bytes Sent |
| HostIP | Host IP |
NodeGeneralDetails
| Attribute Name | Description |
|---|
| Id | Id of Node |
| UnicastAddress | Unicast Address |
| WeakestChannel | Weakest Channel |
| PacketsSent | Packets Sent |
| PacketsReceived | Packets Received |
| PublisherSuccessRate | Publisher Success rate |
| ReceiverSuccessRate | Receiver Success rate |
| MemoryAvailableMB | Memory Available |
| MemoryMaxMB | Memory Maximum |
