12 Oracle Coherence Cache

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

12.1.1 Cache Status

This metric displays the coherence cache status.

Target Version	Collection Frequency
All Versions	Every 60 Seconds

12.2 Aggregate Storage Manager Metrics

This metric category provides information about the Aggregate Storage Manager metrics.

12.2.1 Aggregate Events Dispatched

This metric displays the total number of events dispatched by the Storage Manager.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate events dispatched by Storage Manager is %value%

12.2.2 Aggregate Events Dispatched Per Minute

This metric displays the number of events dispatched per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate events dispatched per minute by Storage Manager is %value%.

12.2.3 Aggregate Evictions

This metric displays the number of evictions from the backing map managed by this Storage Manager.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate evictions by Storage Manager is %value%.

12.2.4 Aggregate Evictions Per Minute

This metric displays the number of evictions from the backing map per minute

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate evictions per minute by Storage Manager is %value%.

12.2.5 Aggregate Inserts

This metric displays the number of inserts into the backing map managed by this Storage Manager.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate inserts into backing map is %value%.

12.2.6 Aggregate Inserts Per Minute

This metric displays the number of inserts into backing map per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate inserts per minute into backing map is %value%.

12.2.7 Aggregate Listener Filters

This metric displays the number of filter-based listeners currently registered with the Storage Manager.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate listener filters registered by Storage Manager is %value%.

12.2.8 Aggregate Listener Keys

This metric displays the number of key-based listeners currently registered with the Storage Manager.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate listener keys registered with Storage Manager is %value%.

12.2.9 Aggregate Locks Granted

This metric displays the number of locks currently granted for the portion of the partitioned cache managed by the Storage Manager.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate locks granted by Storage Manager is %value%

12.2.10 Aggregate Locks Pending

This metric displays the number of pending lock requests for the portion of the partitioned cache managed by the Storage Manager.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate locks pending in Storage Manager is %value%.

12.2.11 Aggregate Removes

This metric displays the number of removes from the backing map caused by operations such as clear, remove or invoke.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate removes from backing map is %value%.

12.2.12 Aggregate Removes Per Minute

This metric displays the number of removes from backing map per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate removes per minute from backing map is %value%.

12.3 Aggregate Cache Usage Metrics (Coherence version 3.4)

This metric category provides information about the Aggregate Cache Usage metrics.

12.3.1 Aggregate Puts

This metric displays the aggregate number of puts.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Puts in cache is %value%.

12.3.2 Aggregate Puts Per Minute

This metric displays the number of puts per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Puts per minute in cache is %value%.

12.3.3 Aggregate Puts Time (ms) Per Minute

This metric displays the total number of ms spent on put() operations per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Puts Time (ms) per minute is %value%.

12.3.4 Aggregate Gets

This metric displays the aggregate number of gets.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Gets in cache is %value%.

12.3.5 Aggregate Gets Per Minute

This metric displays the number of gets per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Gets per minute in cache is %value%.

12.3.6 Aggregate Gets Time (ms) Per Minute

This metric displays the total number of ms spent on get() operations per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Gets Time (ms) per minute is %value%

12.3.7 Aggregate Hits

This metric displays the rough number of cache hits. A cache hit is a read operation invocation for which an entry exists in this map.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Hits is %value%

12.3.8 Aggregate Hits Per Minute

This metric displays the rough number of cache hits per minute. A cache hit is a read operation invocation for which an entry exists in this map.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Hits per minute is %value%

12.3.9 Aggregate Hits Time (ms) Per Minute

This metric displays the total number of ms per minute for the get() operations for which an entry existed in this map.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Hits Time (ms) per minute is %value%

12.3.10 Aggregate Misses

This metric displays the rough number of cache misses. A cache miss is a read operation for which no entry exists in this map.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Misses is %value%.

12.3.11 Aggregate Misses Per Minute

This metric displays the rough number of cache misses per minute. A cache miss is a read operation for which no entry exists in this map.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Misses per minute is %value%.

12.3.12 Aggregate Misses Time (ms) Per Minute

This metric displays the total number of ms per minute for the get() operations for which no entry existed in this map.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Misses Time (ms) per minute is %value%

12.3.13 Aggregate Writes

This metric displays the total number of storage writes.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Writes is %value%

12.3.14 Aggregate Writes Per Minute

This metric displays the total number of storage writes per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Writes per minute is %value%.

12.3.15 Aggregate Write Time (ms) Per Minute

This metric displays the cumulative time spent on storage writes per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 15 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Write Time (ms) per minute is %value%.

12.3.16 Aggregate Reads

This metric displays the total number of reads.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Reads is %value%.

12.3.17 Aggregate Reads Per Minute

This metric displays the total number of reads per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Reads per minute is %value%.

12.3.18 Aggregate Read Time (ms) Per Minute

This metric displays the cumulative time spent on reads per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Read Time (ms) per minute is %value%.

12.3.19 Aggregate Failures Per Minute

This metric displays the total number of storage failures per minute (load, store and erase operations).

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Failures per minute is %value%.

12.3.20 Aggregate Queue Size

This metric displays the size of the write-behind queue.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Queue Size is %value%.

12.3.21 Hit Probability

This metric displays the rough probability that the next invocation is a hit.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Cache Hit Probability is %value%.

12.3.22 Hits to Gets Ratio (%)

This metric displays the percentage ratio of cache hits to get() operation.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Cache Hits to Gets Ratio is %value%.

12.3.23 Average Time Per Get (ms)

This metric displays the average number of ms per get() invocation.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Time per cache Get (ms) is %value%.

12.3.24 Average Time Per Get-Hit (ms)

This metric displays the average number of ms per get() invocation that is a hit.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Time per cache Get-Hit (ms) is %value%

12.3.25 Average Time Per Get-Miss (ms)

This metric displays the average number of ms per get() invocation that is a miss.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Time per cache Get-Miss (ms) is %value%.

12.3.26 Average Time Per Put (ms)

This metric displays the average number of ms per put() invocation.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Time per cache Put (ms) is %value%.

12.3.27 Average Time Per Read (ms)

This metric displays the average time (in ms) spent per read operation.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Time per cache Read (ms) is %value%.

12.3.28 Average Time Per Write (ms)

This metric displays the average time (in ms) spent per write operation.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Time per cache Write (ms) is %value%.

12.4 Aggregate Cache Usage Metrics (Coherence version 3.4.2 - 3.7.1)

This metric category provides information about the aggregate cache usage metrics for Coherence versions 3.4.2 - 3.7.1.

12.4.1 Aggregate Puts

This metric displays the aggregate number of puts.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Puts in cache is %value%.

12.4.2 Aggregate Puts Per Minute

This metric displays the number of puts per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Puts per minute in cache is %value%.

12.4.3 Aggregate Puts Time (ms) Per Minute

This metric displays the total number of ms spent on put() operations per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Puts Time (ms) per minute is %value%.

12.4.4 Aggregate Gets

This metric displays the aggregate number of gets.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Gets in cache is %value%.

12.4.5 Aggregate Gets Per Minute

This metric displays the number of gets per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Gets per minute in cache is %value%.

12.4.6 Aggregate Gets Time (ms) Per Minute

This metric displays the total number of ms spent on get() operations per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Gets Time (ms) per minute is %value%

12.4.7 Aggregate Hits

This metric displays the rough number of cache hits. A cache hit is a read operation invocation for which an entry exists in this map.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Hits is %value%

12.4.8 Aggregate Hits Per Minute

This metric displays the rough number of cache hits per minute. A cache hit is a read operation invocation for which an entry exists in this map.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Hits per minute is %value%

12.4.9 Aggregate Hits Time (ms) Per Minute

This metric displays the total number of ms per minute for the get() operations for which an entry existed in this map.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Hits Time (ms) per minute is %value%

12.4.10 Aggregate Misses

This metric displays the rough number of cache misses. A cache miss is a read operation for which no entry exists in this map.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Misses is %value%.

12.4.11 Aggregate Misses Per Minute

This metric displays the rough number of cache misses per minute. A cache miss is a read operation for which no entry exists in this map.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Misses Time (ms) per minute is %value%

12.4.12 Aggregate Misses Time (ms) Per Minute

This metric displays the total number of ms per minute for the get() operations for which no entry existed in this map.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Misses Time (ms) per minute is %value%

12.4.13 Aggregate Writes

This metric displays the total number of storage writes.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Writes is %value%

12.4.14 Aggregate Writes Per Minute

This metric displays the total number of storage writes per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Writes per minute is %value%.

12.4.15 Aggregate Write Time (ms) Per Minute

This metric displays the cumulative time spent on storage writes per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 15 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Write Time (ms) per minute is %value%.

12.4.16 Aggregate Reads

This metric displays the total number of reads.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Reads is %value%.

12.4.17 Aggregate Reads Per Minute

This metric displays the total number of reads per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Reads per minute is %value%.

12.4.18 Aggregate Read Time (ms) Per Minute

This metric displays the cumulative time spent on reads per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Read Time (ms) per minute is %value%.

12.4.19 Aggregate Failures Per Minute

This metric displays the total number of storage failures per minute (load, store, and erase operations).

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Failures per minute is %value%.

12.4.20 Aggregate Queue Size

This metric displays the size of the write-behind queue.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Queue Size is %value%.

12.4.21 Aggregate Prunes

This metric displays the total number of prunes. A prune operation occurs every time the cache reaches its high watermark.

12.4.22 Aggregate Prunes Per Minute

This metric displays the number of prune operations per minute. A prune operation occurs every time the cache reaches its high watermark.

12.4.23 Aggregate Prune Time (ms) Per Minute

This metric displays the total number of ms for the prune operations per minute.

12.4.24 Hit Probability

This metric displays the rough probability that the next invocation is a hit.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Cache Hit Probability is %value%.

12.4.25 Hits to Gets Ratio (%)

This metric displays the percentage ratio of cache hits to get() operation.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Cache Hits to Gets Ratio is %value%.

12.4.26 Average Time Per Get (ms)

This metric displays the average number of ms per get() invocation.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Time per cache Get (ms) is %value%.

12.4.27 Average Time Per Get-Hit (ms)

This metric displays the average number of ms per get() invocation that is a hit.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Time per cache Get-Hit (ms) is %value%

12.4.28 Average Time Per Get-Miss (ms)

This metric displays the average number of ms per get() invocation that is a miss.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Time per cache Get-Miss (ms) is %value%.

12.4.29 Average Time Per Put (ms)

This metric displays the average number of ms per put() invocation.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Time per cache Put (ms) is %value%.

12.4.30 Average Time Per Read (ms)

This metric displays the average time (in ms) spent per read operation.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Time per cache Read (ms) is %value%.

12.4.31 Average Time Per Write (ms)

This metric displays the average time (in ms) spent per write operation.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Time per cache Write (ms) is %value%.

12.5 Aggregate Cache Size Metrics

This metric category provides information about the Aggregate Cache Size metrics.

12.5.1 Aggregate Units

This metric displays the size of the cache measured in units.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate cache Units is %value%.

12.5.2 Unit Factor

This metric displays the factor by which the Units, LowUnits, and HighUnits properties are adjusted.

Target Version	Collection Frequency
All Versions	Every 5 Minutes

12.5.3 Aggregate Cache Objects

This metric displays the number of objects in the cache.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Cache Objects is %value%

12.5.4 Aggregate Memory Usage in Bytes (assuming BINARY Calculator)

This metric displays the number of bytes consumed by the objects in the cache.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Memory Usage is %value% bytes.

12.5.5 Aggregate Memory Usage in MB (assuming BINARY Calculator)

This metric displays the MB consumed by the objects in the cache.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Memory Usage is %value% MB

12.5.6 Average Object Size in Bytes

This metric displays the average memory consumed by each object in bytes.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Object Size is %value% bytes.

12.6 Aggregate Query Optimization Metrics (Coherence version 3.7)

This metric category provides information about the Aggregate Query Optimization metrics.

12.6.1 Maximum Query Duration (ms)

This metric displays the number of milliseconds of the longest running query.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Maximum Query Duration (ms) is %value%.

12.6.2 Aggregate Non Optimized Queries Executed Per Minute

This metric displays the total number of parallel queries that could not be resolved per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Non Optimized Queries Executed Per Minute is %value%.

12.6.3 Average Non Optimized Query Execution Time (ms)

This metric displays the average duration, in milliseconds, for non-optimized query execution.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Non Optimized Query Execution Time (ms) is %value%.

12.6.4 Aggregate Non Optimized Query Time (ms) Per Minute

This metric displays the total execution time, in milliseconds for queries that could not be resolved per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Non Optimized Query Time (ms) Per Minute is %value%.

12.6.5 Aggregate Optimized Queries Executed Per Minute

This metric displays the total number of parallel queries that were fully resolved using indexes per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Optimized Queries Executed Per Minute is %value%.

12.6.6 Average Optimized Query Execution Time (ms)

This metric displays the average duration, in milliseconds, for optimized query execution.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Optimized Query Execution Time (ms) is %value%.

12.6.7 Aggregate Optimized Query Time (ms) Per Minute

This metric displays the total execution time, in milliseconds for queries that were fully resolved using indexes per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Optimized Query Time (ms) Per Minute is %value%.

12.7 Aggregate Query Optimization Metrics (Coherence version 3.7.1)

This metric category provides information about the Aggregate Query Optimization metrics.

12.7.1 Maximum Query Duration (ms)

This metric displays the number of milliseconds of the longest running query.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Maximum Query Duration (ms) is %value%.

12.7.2 Aggregate Non Optimized Queries Executed Per Minute

This metric displays the total number of parallel queries that could not be resolved per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Non Optimized Queries Executed Per Minute is %value%.

12.7.3 Average Non Optimized Query Execution Time (ms)

This metric displays the average duration, in milliseconds, for non-optimized query execution.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Non Optimized Query Execution Time (ms) is %value%.

12.7.4 Aggregate Non Optimized Query Time (ms) Per Minute

This metric displays the total execution time, in milliseconds for queries that could not be resolved per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Non Optimized Query Time (ms) Per Minute is %value%.

12.7.5 Aggregate Optimized Queries Executed Per Minute

This metric displays the total number of parallel queries that were fully resolved using indexes per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Optimized Queries Executed Per Minute is %value%.

12.7.6 Average Optimized Query Execution Time (ms)

This metric displays the average duration, in milliseconds, for optimized query execution.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Average Optimized Query Execution Time (ms) is %value%.

12.7.7 Aggregate Optimized Query Time (ms) Per Minute

This metric displays the total execution time, in milliseconds for queries that were fully resolved using indexes per minute.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Optimized Query Time (ms) Per Minute is %value%.

12.7.8 Aggregate Query Contentions Per Minute

This metric displays the aggregate number of times a query had to be reevaluated per minute due to concurrent updates.

Target Version	Evaluation and Collection Frequency	Upload Frequency	Default Warning Threshold	Default Critical Threshold	Alert Text
All Versions	Every 5 Minutes	After Every 3rd Collection	Not Defined	Not Defined	Aggregate Query Contentions Per Minute is %value%