Distributed Cache Counters
NCache provides various cache server counters to monitor the performance of distributed cache servers. You can monitor all these counters for a specific cache on any Windows machine using either the NCache Monitor or PerfMon Tool. These counters include:
| Counters | Description |
|---|---|
# Clients (Available in Community Edition) |
Number of clients connected to an instance of cache. |
Fetches/sec (Available in Community Edition) |
Number of Get operations per second. |
Hits/sec (Available in Community Edition) |
Number of successful Get operations per second. |
Hits ratio/sec (Available in Community Edition) |
Ratio of the number of successful Get operations per second and the total number of Get operations per second. |
Misses/sec (Available in Community Edition) |
Number of failed Get operations per second. |
Additions/sec (Available in Community Edition) |
Number of Add operations per second. |
Updates/sec (Available in Community Edition) |
Number of Insert operations per second. |
Deletes/sec (Available in Community Edition) |
Number of Remove operations per second. |
Expirations/sec (Available in Community Edition) |
Number of items currently expiring per second. |
Evictions/sec (Available in Community Edition) |
Number of items being evicted per second. |
Data Balance/sec (Available in Community Edition) |
Number of items a particular node is either reading from other nodes or sending to other nodes during the Data Load Balancing mode. |
Datasource Failed operations/sec |
Number of data source write operations failed per second. This includes write operations performed on the data source provider returning Failure/FailureRetry/FailureDontRemove as the status of OperationResult. |
Datasource updates/sec |
Number of update operations per second in cache after data source write operations. |
Counter Count |
Number of Counters in the cache. |
Counter Size |
Size of the Counters in the cache in bytes, including cache store meta information and all other indices. |
Dictionary Count |
Number of Dictionaries in the cache. |
Dictionary Size |
Size of the Dictionaries in the cache in bytes, including cache store meta information and all other indices. |
List Count |
Number of Lists in the cache. |
List Size |
Size of the Lists in the cache in bytes, including cache store meta information and all other indices. |
Queue Count |
Number of Queues in the cache. |
Queue Size |
Size of the Queues in the cache in bytes, including cache store meta information and all other indices. |
Set Count |
Number of Sets in the cache. |
Set Size |
Size of the Sets in the cache in bytes, including cache store meta information and all other indices. |
Average Query Size |
Average number of items returned by queries in a second. |
Average us/fetch (Available in Community Edition) |
Average time (microseconds) taken to complete a single Get operation. |
Average us/add (Available in Community Edition) |
Average time (microseconds) taken to complete a single Add operation. |
Average us/insert (Available in Community Edition) |
Average time (microseconds) taken to complete a single Insert operation. |
Average us/remove (Available in Community Edition) |
Average time (microseconds) taken to complete a single Remove operation. |
Average us/cache operation (Available in Community Edition) |
Average time (microseconds) taken to complete a single cache operation. |
Average us/Bridge Operation |
Average time (microseconds) taken to complete a single Bridge operation. |
Average us/datasource update |
Average time (microseconds) taken to complete a single data source update cache operation. |
Average us/datasource write |
Average time (microseconds) taken to complete a single data source write operation. Data source write operations include both Write-through and Write-behind operations. |
Cache Size (Available in Community Edition) |
Size of the cache in MBs, including the cache store meta information and all other indices. |
Client Request/sec (Available in Community Edition) |
Number of requests sent by all clients to the cache server. |
Client Response/sec (Available in Community Edition) |
Number of responses received by all clients from the cache server. |
Clustered opsrecv/sec (Available in Community Edition) |
Number of clustered operations received per second. |
Clustered opsent/sec (Available in Community Edition) |
Number of clustered operations performed per second. |
Count (Available in Community Edition) |
Number of items in the cache. |
DispatchEnter/sec (Available in Community Edition) |
Number of clustered operations performed per second. |
Eviction Index Size (Available in Community Edition) |
Size of eviction indices in bytes, defined on the cache. |
Expiration Index Size (Available in Community Edition) |
Size of expiration indices in bytes, defined on the cache. |
General Notifications Queue Size (Available in Community Edition) |
Number of general notification events in the queue. |
Group Index Size [Deprecated] |
Size of group indices in bytes defined on this cache. |
Mirror queue size |
Number of items in the Mirror queue. |
Query Index Size |
Size of query indices in bytes, defined on the cache. |
Read-thru/sec |
Number of Read-through operations per second. |
Request Log Ledger Size (Available in Community Edition) |
Total in-memory size of the log ledger, which stores logged requests. |
Response sent/sec (Available in Community Edition) |
Number of clustered operations performed per second. |
Responses/sec (Available in Community Edition) |
Number of responses sent (cache response for commands like Add, Get, Insert, Remove, etc.) to all clients by this cache server. |
Sliding Index queue size (Available in Community Edition) |
Number of items in the Sliding-Index queue. |
Socket recv size (bytes) (Available in Community Edition) |
Data received in the last message. |
Socket recv time (msec) (Available in Community Edition) |
Time it took to receive the last message. |
Socket send size (bytes) (Available in Community Edition) |
Data that was sent in the last message. |
Socket send time (msec) (Available in Community Edition) |
Time it took to send the last message over the socket. |
State transfer/sec (Available in Community Edition) |
Number of items this node is either reading from other nodes or sending to other nodes during the State Transfer mode. |
Write-thru/sec |
Number of Write-through operations per second. |
CacheLastAccessCount (Available in Community Edition) |
Number of items that are older than the access interval specified in the config. |
Cluster ops/sec (Available in Community Edition) |
Number of clustered operations performed per second. |
Bridge Queue Count |
Number of items in the Bridge queue. |
Bridge Queue Size |
Total size of the Bridge queue in bytes. |
Bytes sent/sec (Available in Community Edition) |
How much data is sent from this node to other nodes in the cache. |
Bytes received/sec (Available in Community Edition) |
How much data is received by this node from other nodes in the cache. |
Requests/sec (Available in Community Edition) |
Number of requests (cache commands like Add, Get, Insert, Remove, etc.) being processed from all clients by this cache server. |
Requests Logged/sec (Available in Community Edition) |
Average number of requests logged in a second. |
Client bytes sent/sec (Available in Community Edition) |
Bytes being sent from the cache server to all its clients. |
Client bytes received/sec (Available in Community Edition) |
Bytes being received by the cache server from all its clients. |
Queries/sec |
Number of queries executing per second on the cache. |
Response Queue Count (Available in Community Edition) |
Number of items in response queue; all responses are queued in the response queue before being sent. |
Response Queue Size (Available in Community Edition) |
Size of the response queue in bytes. It displays the total data size of all the responses in the response queue. |
Event Queue Count (Available in Community Edition) |
Number of Events in the Event Queue. |
Events Processed/sec (Available in Community Edition) |
Number of Events processed per second on a client. |
Events Triggered/sec (Available in Community Edition) |
Number of Events triggered and received by the client per second. |
Average ms/event (Available in Community Edition) |
Average time taken by the client to process a single Event. |
Logged Request Count (Available in Community Edition) |
Total number of currently logged requests. |
MapReduce Running Tasks [Deprecated] |
Number of MapReduce tasks running. |
MapReduce Waiting Tasks [Deprecated] |
Number of tasks in the waiting state when the maximum running tasks limit for execution has been reached. |
MapReduce Mapped/sec [Deprecated] |
Number of keys mapped per second in running tasks. |
MapReduce Reduced/sec [Deprecated] |
Number of keys reduced per second in running tasks. |
MapReduce Combined/sec [Deprecated] |
Number of keys combined per second in running tasks. |
Readers Count (Available in Community Edition) |
Number of running readers. |
Average us/addBulk (Available in Community Edition) |
Average time (microseconds) taken to complete a single AddBulk operation. |
Average us/fetchBulk (Available in Community Edition) |
Average time (microseconds) taken to complete a single GetBulk operation. |
Average us/Query Execution |
Average time (microseconds) taken to execute one query. |
Average us/removeBulk (Available in Community Edition) |
Average time (microseconds) taken to complete a single RemoveBulk operation. |
Average us/insertBulk (Available in Community Edition) |
Average time (microseconds) taken to complete a single InsertBulk operation. |
Average us/Read-thru |
Average time (microseconds) taken to complete Read-through operation. |
Average us/Write-thru |
Average time (microseconds) taken to complete Write-through operation. |
Average us/Write-behind |
Average time (microseconds) taken to complete the Write-behind operation. |
Write-behind/sec |
Number of Write-behind operations per second. |
Write-behind evictions/sec |
Number of items evicted per second from Write-behind queue. Only failed operations are evicted that are enqueued for operation retry. |
Write-behind batch count |
Number of operations selected in the current batch interval for execution. For Write-behind, if batching is enabled, a number of operations dequeued in the current batch interval for execution is displayed by this counter. |
Write-behind queue count |
Number of operations in the Write-behind queue. |
Write-behind failure retry count |
Number of operations failed that are enqueued for retry. Data source write operations returning FailureRetry as status are also enqueued for retry. |
NaglingMsgCount (Available in Community Edition) |
Number of messages that are combined to be sent in the Nagling process. |
Bridge Operations Received |
Number of Bridge operations received. |
Bridge Operations Received/sec |
Number of Bridge operations received per second. |
Bridge Operations Sent |
Number of Bridge operations sent. |
Bridge Operations Sent/sec |
Number of Bridge operations sent per second. |
TcpUpQueueCount (Available in Community Edition) |
Number of items in TCP up-queue. |
TcpDownQueueCount (Available in Community Edition) |
Number of items in TCP down-queue. |
BcastQueueCount (Available in Community Edition) |
Number of items in the Bcast queue waiting to be processed in sequence. |
McastQueueCount (Available in Community Edition) |
Number of items in Mcast queue waiting to be processed in sequence. |
