12 Oracle Coherence Cluster

All Oracle Coherence entities are monitored from a central MBean (JMX) server or central Management Node. All metrics source are Coherence MBeans and Java platform MBeans. Sample Coherence MBean reference available from the "Coherence MBean Reference" appendix in the Oracle Coherence Management Guide:

http://docs.oracle.com/cd/E24290_01/coh.371/e22842/appendix_mbean.htm

General Metric Naming Conventions:

  • Total {Metric Name} - Absolute Total value as returned by MBean server. Typically this is since node start or since statistics were last reset. For example, Cache Usage > Total Gets metric for a Oracle Coherence Node target is the total number of gets on a cache since node start or statistics reset.

  • Total {Metric Name} Per Minute - Rate computed on Absolute Total value as discussed in "Per Minute metric computation"

  • Aggregate {Metric Name} - Aggregated value across multiple entities. For example Cache Usage > Aggregate Gets for a Oracle Coherence Cache target is the aggregate number of gets for a cache across all nodes that supports this cache

  • Aggregate {Metric Name} Per Minute - Rate computed on Aggregate value as discussed in "Per Minute metric computation"

  • Metric names without Total/Aggregate - These are either STRING metrics or instantaneous values as returned by MBean server. They may be aggregated across entities where applicable.

12.1 Response

This metric shows the time required, in milliseconds, for the server to respond to requests.

12.1.1 Cache Status

Current Status of Coherence Cluster

Metric Summary

The following table shows how often the metric's value is collected.

Target Version Collection Frequency
All Versions Every 60 Seconds

12.2 Nodes Replenish and Entity Discovery Alert Metric

The following section describes the Nodes Replenish and Entity Discovery Alert metrics.

12.2.1 Cluster Size Change (For Node Process Replenish)

Change in Cluster Size used to automatically Replenish Nodes

Metric Summary

The following table shows how often the metric's value is collected.

Target Version Collection Frequency
All Versions Every 60 Seconds

12.2.2 Cluster Size Change (For Node Entity Addition)

Change in Cluster Size used to automatically Discover New Nodes in Enterprise Manager

Metric Summary

The following table shows how often the metric's value is collected.

Target Version Collection Frequency
All Versions Every 60 Seconds

12.3 Departed Coherence Cluster Members

The following shows the Departed Coherence Cluster Members metrics.

12.3.1 Recently Departed Members

The Cluster node member information for recently departed nodes

Metric Summary

The following table shows how often the metric's value is collected.

Target Version Collection Frequency
All Versions Every 5 Minutes

12.4 Aggregate Node Metrics

The following section describes the Aggregate Node metrics.

12.4.1 Number of Nodes

The total number of cluster member nodes

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 5 Minutes After Every 60 Samples < Not Defined Not Defined Cluster size is %value%

12.4.2 Number of Nodes Departed

The number of recently departed Coherence cluster node members

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 5 Minutes After Every 60 Samples > Not Defined Not Defined %value% nodes departed Coherence cluster

12.4.3 Average Publisher Success Rate (%)

The ratio of the number of packets successfully delivered to the total number of sent packets

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 5 Minutes After Every 60 Samples < Not Defined Not Defined Publisher success rate is %value%

12.4.4 Average Receiver Success Rate (%)

The ratio of the number of packets successfully acknowledged to the total number of received packets

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 5 Minutes After Every 60 Samples < Not Defined Not Defined Receiver success rate is %value%

12.4.5 Aggregate Memory Consumed (MB)

Aggregate Memory (MB) Used by Coherence Cluster

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 5 Minutes After Every 60 Samples > Not Defined Not Defined Current aggregate memory consumption is %value% MB

12.4.6 Aggregate Memory Available (MB)

Aggregate Memory Available (MB)

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 5 Minutes After Every 60 Samples < Not Defined Not Defined Current aggregate memory available is %value% MB

12.4.7 Aggregate Send Success Rate Per Minute (%)

Send Success Rate % computed per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 5 Minutes After Every 60 Samples < Not Defined Not Defined Aggregate Send Success Rate is %value% per minute

12.4.8 Aggregate Receive Success Rate Per Minute (%)

Receive Success Rate % computed per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 5 Minutes After Every 60 Samples < Not Defined Not Defined Aggregate Receive Success Rate is %value% per minute

12.5 Aggregate Cache Metrics

The following describes the Aggregate Cache metrics.

12.5.1 Number of Caches

The total number of caches

Metric Summary

The following table shows how often the metric's value is collected.

Target Version Collection Frequency
All Versions Every 15 Minutes

12.5.2 Aggregate Number of Cache Objects

The total number of objects in all cache nodes in a cluster

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate cache objects in cluster is %value%

12.6 Aggregate Service Storage Enabled Nodes Alert Metric

The following describes the Aggregate Service Storage Enabled Nodes Alert metrics.

12.6.1 Coherence Service Name

The name of the Coherence service

Target Version Collection Frequency
All Versions Every 15 Minutes

12.6.2 Storage Enabled Nodes

The total number of storage enabled cluster node members running this service

Target Version Collection Frequency
All Versions Every 15 Minutes

12.6.3 Storage Enabled Nodes Size Change (To Replenish Storage Nodes)

Change in Storage Enabled Nodes Size alert metric used to replenish storage nodes

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 60 Seconds After Every 60 Samples < -1 -5 %value% storage nodes departed Coherence cluster

12.7 Aggregate Service Requests and Tasks

The following describes the Aggregate Service Requests and Tasks metrics.

12.7.1 Aggregate Requests Per Minute

The total number of synchronous requests issued by the service per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Requests per minute is %value%

12.7.2 Aggregate Pending Requests

The aggregate number of pending synchronous requests issued by the service

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Pending Requests is %value%

12.7.3 Maximum Pending Request Time (ms)

The duration (in ms) of the oldest pending synchronous request issued by the service

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Maximum Pending Request Time (ms) is %value%

12.7.4 Aggregate Timed-Out Requests Per Minute

The number of timed-out requests per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Timed-out Requests per minute is %value%

12.7.5 Aggregate Tasks Executed Per Minute

The number of executed tasks per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Tasks Executed per minute is %value%

12.7.6 Aggregate Tasks Backlog

The aggregate size of backlog queue that holds tasks scheduled to be executed

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Tasks Backlog is %value%

12.7.7 Aggregate Timed-Out Tasks Per Minute

The aggregate number of timed-out tasks per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Timed-out Tasks per minute is %value%

12.7.8 Aggregate Hung Tasks

The aggregate number of currently executing hung tasks

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Hung Tasks is %value%

12.7.9 Average Request Duration (ms)

The average duration (in ms) of a synchronous request issued by the service

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Average Request Duration (ms) is %value%

12.7.10 Maximum Request Duration (ms)

The maximum duration (in ms) of a synchronous request issues by the service

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Maximum Request Duration (ms) is %value%

12.7.11 Average Task Duration (ms)

The average duration (in ms) of an individual task execution

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Average Task Duration (ms) is %value%

12.7.12 Maximum Hung Task Duration (ms)

The longest currently executing hung task duration in ms

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Maximum Hung Task Duration (ms) is %value%

12.7.13 Maximum Task Backlog

The maximum size of the backlog queue

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Maximum Task Backlog is %value%

12.8 Aggregate Service Partitions and Threads

The following describes the Aggregate Service Partitions and Threads metrics.

12.8.1 Coherence Service Name

The name of the Coherence service

Target Version Collection Frequency
All Versions Every 15 Minutes

12.8.2 Aggregate Partitions Endangered

The total number of partitions that are not currently backed up across all nodes

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Partitions Endangered is %value%

12.8.3 Aggregate Partitions Unbalanced

The total number of primary and backup partitions which remain to be transferred

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Partitions Unbalanced is %value%

12.8.4 Aggregate Partitions Vulnerable

The total number of partitions that are backed up on the same computer where the primary partition owner resides

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Partitions Vulnerable is %value%

12.8.5 Aggregate Abandoned Threads

The aggregate number of abandoned threads from the service thread pool

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Abandoned Threads is %value%

12.8.6 Average Active Threads

The average number of active threads in the service thread pool

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Average Active Threads is %value%

12.8.7 Aggregate Idle Threads

The aggregate number of currently idle threads in the service thread pool

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Idle Threads is %value%

12.8.8 Aggregate Threads

The aggregated number of threads in the service thread pool

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Threads is %value%

12.9 Aggregate Transaction Manager Metrics

The following describes the Aggregate Transaction Manager metrics.

12.9.1 Aggregate Commit Time (ms) Per Minute

The cumulative time (in ms) spent during commit phase computed per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Commit Time (ms) per minute is %value%

12.9.2 Aggregate Timeout Time (ms) Per Minute

The transaction time out value in ms computed per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Timeout Time (ms) per minute is %value%

12.9.3 Aggregate Active Transactions Per Minute

The aggregate number of currently active transactions per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Active Transactions per minute is %value%

12.9.4 Aggregate Transactions Committed Per Minute

The aggregate number of transactions that have been committed by the Transaction Manager per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples < Not Defined Not Defined Aggregate Transactions Committed per minute is %value%

12.9.5 Aggregate Transactions Recovered Per Minute

The aggregate number of transactions that have been recovered by the Transaction Manager per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Transactions Recovered per minute is %value%

12.9.6 Aggregate Transactions Rolled Back Per Minute

The aggregate number of transactions that have been rolled back by the Transaction Manager per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Transactions Rolled back per minute is %value%

12.9.7 Aggregate Transaction Duration (ms) Per Minute

The cumulative time (in ms) spent on active transaction computed per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Transaction Duration (ms) per minute is %value%

12.10 Aggregate HTTP Session (Web) Metrics (Coherence version 3.4.2 – 3.5)

The following describes the Aggregate HTTP Session (Web) metrics.

12.10.1 Web Application ID

HTTP Session (Aggregate) - Web Application ID

Target Version Collection Frequency
All Versions Every 15 Minutes

12.10.2 Aggregate Attributes in Local Session

The total number of non-distributed session attributes stored in the local session attribute cache

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Attributes in Local Session cache is %value%

12.10.3 Aggregate Sessions in Local Session Cache

The total number of non-distributed sessions stored in the local session cache

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Sessions in Local Session cache is %value%

12.10.4 Aggregate Session Cache Updates Per Minute

The total updates of session object stored in the session storage clustered cache per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Session cache Updates per minute is %value%

12.10.5 Aggregate Overflow Cache Updates Per Minute

The total updates to session attributes stored in the "overflow" clustered cache per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Overflow cache Updates per minute is %value%

12.11 Aggregate HTTP Session (Web) Metrics (Coherence version 3.6 – 3.7.1)

The follwing section describes the Aggregate HTTP Session (Web) metrics (Coherence version 3.6 - 3.7.1).

12.11.1 Web Application ID

HTTP Session (Aggregate) - Web Application ID

Target Version Collection Frequency
All Versions Every 15 Minutes

12.11.2 Aggregate Attributes in Local Session cache

The total number of non-distributed session attributes stored in the local session attribute cache

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Attributes in Local Session cache is %value%

12.11.3 Aggregate Sessions in Local Session Cache

The total number of non-distributed sessions stored in the local session cache

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Sessions in Local Session cache is %value%

12.11.4 Aggregate Session Cache Updates Per Minute

The total updates of session object stored in the session storage clustered cache per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Session cache Updates per minute is %value%

12.11.5 Aggregate Overflow Cache Updates Per Minute

The total updates to session attributes stored in the "overflow" clustered cache per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Overflow cache Updates per minute is %value%

12.11.6 Average Reap Duration (ms)

The average reap duration

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Average Reap Duration (ms) is %value%

12.11.7 Average Reaped Sessions

The average number of reaped sessions in a reap cycle

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Average Reaped Sessions is %value%

12.12 Aggregate Weblogic HTTP Session (Web) Metrics

The following section decribes the Aggregate Weblogic HTTP Session (Web) metrics.

12.12.1 Web Application ID

HTTP Session (Aggregate) - Web Application ID

Target Version Collection Frequency
All Versions Every 15 Minutes

12.12.2 Aggregate Attributes in Local Session cache

The total number of non-distributed session attributes stored in the local session attribute cache

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Attributes in Local Session cache is %value%

12.12.3 Aggregate Sessions in Local Session Cache

The total number of non-distributed sessions stored in the local session cache

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Sessions in Local Session cache is %value%

12.12.4 Aggregate Session Cache Updates Per Minute

The total updates of session object stored in the session storage clustered cache per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Session cache Updates per minute is %value%

12.12.5 Aggregate Overflow Cache Updates Per Minute

The total updates to session attributes stored in the "overflow" clustered cache per minute

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Aggregate Overflow cache Updates per minute is %value%

12.12.6 Average Reap Duration (ms)

The average reap duration

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Average Reap Duration (ms) is %value%

12.12.7 Average Reaped Sessions

The average number of reaped sessions in a reap cycle

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Alert Text
All Versions Every 15 Minutes After Every 60 Samples > Not Defined Not Defined Average Reaped Sessions is %value%