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  • Administrator's Guide
  • NCache Architecture
    • Cache Topologies
    • Cache Cluster
    • Local Cache
    • Cache Client
    • Client Cache
    • Data Load Balancing
    • Cache Server Backward Compatibility
    • Client Backward Compatibility
    • Eviction
    • Indexing
    • Runtime Data Sharing
    • Portable Data Types
    • Class Versioning
    • IP Binding with Multiple NICs
    • Graceful Node Down
    • Separate Cache Host Process
    • Self Healing Dynamic Clustering
  • Configuring Caches
    • Create Cache
      • Creating Local Cache
        • Create New Cache
        • Add Existing Cache
      • Creating Clustered Cache
        • Create New Cache Cluster
        • Add Existing Cache Cluster
    • Remove Cache
    • Clear Cache Contents
    • Adding Server Node in Cache Cluster
    • Removing Server Node from Cache Cluster
    • Configuring Basic Cache Settings
      • Cache Size
      • Cache Isolation Levels
      • Cache Data Expiration
      • Cache Data Format
    • Configuring Cache Cluster Settings
      • Ports
      • Operation Timeout
      • Static Replication Interval
      • Connection Retries
      • Retry Interval
    • Add Test Data to Cache
    • Deploy Providers
    • Configuring Query Indexes
    • Registering Classes for Compact Serialization
      • Registering Non-Generic Classes
      • Unregistering Non-Generic Classes
      • Registering Generic Classes
      • Registering Generic Classes Using Generic Type Handler
    • Registering Classes for Portable Data Sharing
    • Configuring Data Source Providers
      • Read-Through Provider
      • Write-Through Provider
      • Write-Through Provider for Write-Behind Operations
    • Configuring Cache Startup Loader
    • Configuring Cache Level Events
    • Configuring Cache Activity Events
    • Configuring Eviction Policy
    • Configuring Compression
    • Configuring Email Notifications
    • Binding Cluster and Client/Server IP with Multiple NICs
      • Binding Cluster with a Dedicated IP
      • Binding Client/Server with a Dedicated IP
    • Configuring Heartbeat
    • Configuring MapReduce
    • Configuring Communication Reliability
    • Auto Start Cache on Boot
    • Nagling
    • Dual Socket
    • Error Logging
    • Configuration Files
      • Client Side Configurations
        • Client Config
        • EFCaching Config
      • Server Side Configurations
        • Cache Config
        • Bridge Config
        • Security Config
      • Cache Server Configuration
  • Management Operations
    • Start Cache
    • Stop Cache
    • Restart Cache
    • Manage Cache Service on a Server Node
    • Apply Configuration
    • Hot Apply Configuration
    • Reset Configuration
    • Data Load Balancing
  • Configuring Cache Clients
    • Adding Client Node in Cluster
    • Removing Client Node from Cluster
    • Configuring Client Node Settings
    • Creating Client Cache
    • Enable Client Cache on Client Nodes
    • Disable Client Cache on Client Nodes
    • Removing Client Cache
    • Configuring Client Cache Settings
  • Configuring Security
    • Configuring Security for Cache Management
    • Configuring Security for Cache
    • Configuring Security for Client Nodes
    • Configuring Encryption for Cache
    • Configure SSL/TLS Encryption in NCache
  • Configuring Bridge for WAN Replication
    • Creating Clustered Bridge
    • Adding Clustered Caches to Bridge
    • Configuring Bridge Settings
    • Configuring Conflict Resolver
    • Changing Cache Syncronization Modes
    • Configuring Master Cache
    • Force State Transfer
    • Connect/Disconnect Cache in Bridge
    • Remove Cache from Bridge
    • Bridge Management
  • NCache on Docker
    • Using NCache Docker Images
    • Customize NCache Dockerfile
  • Monitoring NCache
    • Cache Counters
    • Monitoring Caches using NCache Manager
      • Changing Management Port of Cache Node
      • Configuring Counters to Display
      • Browse Cache Statistics
      • Cluster Health
      • Monitoring Cache Clusters using NCache Email Alerts
    • Monitoring Caches using NCache Monitor
      • Monitoring with Built-In Dashboard
      • Monitoring with Custom Dashboard
    • Monitoring Bridge using NCache Manager
    • Monitoring NCache using Windows PerfMon Tool
      • Monitoring Cache Server Counters Using PerfMon
      • Monitoring Cache Client Counters Using PerfMon
      • Monitoring Bridge Counters Using PerfMon
    • Logging in NCache
      • NCache Log Viewer
      • NCache Monitor Logging
      • Performance Counters Logging
      • Windows Event Logging
      • Email Notifications on NCache Events
      • Cache Server Logging
      • Client Side API Logging
      • Cache Event IDs
    • Troubleshooting NCache Monitoring
      • Computer Name Not Found
      • Diskperf Not Installed
      • No READ Access to the Perflib Subkeys
      • Unable to Connect to Remote Server
    • IPV6 Support
  • Upgrading NCache Versions
    • Live Upgrade NCache Version
    • Upgrade NCache Version Offline
  • Apply Windows Patches on NCache Server

Cache Counters

NCache publishes different counters for monitoring purposes. It published its performance counters through PerfMon. It also publishes some counters for debugging purposes. You can monitor NCache counters for a specific cache on any Windows machine using both Windows PerfMon tool and monitor.

Performance Counters

NCache is not only enriched with powerful monitoring facilities, but besides that; it also provides different categories of counters for Windows performance monitor. This lets the clients monitor the overall performance of NCache. These categories include cluster, client, server and bridge. They cover all aspects of NCache monitoring including remote clients, cache clients, clustered operations, server counters, bridge queue status counters and many more.

Performance counters provide valuable information about system hardware, services, networks and applications that can be used to determine their performance. It helps in diagnosing problems, used to fine-tune systems and applications, monitoring real-time application performance and resolving bottleneck cause of system components.

Performance counters can be seen both from PerfMon and NCache Monitor. The statistics view is also used to see the performance statistics of a cache or a cluster.

These counters include:

Counters Description
Fetches/sec Number of Get operations per second.
Hits/sec Number of successful Get operations per second.
Misses/sec Number of failed Get operations per second.
Additions/sec Number of Add operations per second.
Updates/sec Number of Insert operations per second.
Deletes/sec Number of Remove operations per second.
Expirations/sec Number of items being expired currently per second.
Evictions/sec Number of items evicted per second.
Data Bal/sec Number of items this node is either reading from other nodes or sending to other nodes during a Data Load Balancing mode.
Mirror Queue Size Number of items in the Mirror queue.
Average sec/fetch Average time in seconds taken to complete one fetch operation.
Average sec/add Average time in seconds taken to complete one Add operation.
Average sec/insert Average time in seconds taken to complete one insert operation.
Average sec/remove Average time in seconds taken to complete one remove operation.
Average sec/cache operation Average time, in seconds, taken to complete one cache operation.
Client Request/sec Number of requests sent by all clients to the cache server.
Client Response/sec Number of responses received by all clients from the cache server.
Clustered opsrecv/sec Number of clustered operations performed per second.
Clustered opsent/sec Number of clustered operations performed per second.
Count Number of items in the cache.
DispatchEnter/sec Number of clustered operations performed per second.
Mirror queue size Number of items in the Mirror queue.
Misses/sec Number of failed Get operations per second.
Readthru/sec Number of Read-through operations per second.
Response sent/sec Number of clustered operations performed per second.
Responses/sec Number of responses sent (meaning cache response for commands like add, get, insert, remove etc.) to all clients by this cache server.
State transfer/sec Number of items this node is either reading from other nodes or sending to other nodes during a state transfer mode.
Writethru/sec Number of Write-through/Write-behind operations per second.
CacheLastAccessCount Number of items which are older than the access interval specified in the config.
Cluster ops/sec Number of clustered operations performed per second.
Bytes sent/sec How much data is sent from this node to other nodes in the cache.
Bytes received/sec How much data is received by this node from other nodes in the cache.
Requests/sec Number of requests (meaning cache commands like add, get, insert, remove etc.) being processed from all clients by this cache server.
Client bytes sent/sec Bytes being sent from cache server to all its clients.
Client bytes received/sec Bytes being received by cache server from all its clients.
Response Queue Count Number of items in response queue; all responses are queued in the response queue before being sent.
Response Queue Size Size of the response queue in bytes. Is displays the total data size of all the responses in the response queue.
Event Queue Count Number of events in the event queue.
Events Processed/sec Number of events processed per second on a client.
Events Triggered/sec Number of events triggered and received by client per second.
Average ms/event Average time taken by client to process a single event.
MapReduce Running Tasks Number of tasks are in execution state at a time.
MapReduce Waiting Tasks Number of tasks in waiting state when the maximum running tasks limit for execution has been reached.
MapReduce Mapped/sec Number of keys mapped per second in running tasks.
MapReduce Reduced/sec Number of keys reduced per second in running tasks.
MapReduce Combined/sec Number of keys combined per second in running tasks.
Average µs/addBulk Average Number of bulk (not independent keys) adds per microsecond. This applies to Bulk, Group and Tag APIs.
Average µs/fetchBulk Average Number of bulk (not independent keys) fetches per microsecond. This applies to Bulk, Group and Tag APIs.
Average µs/removeBulk Average Number of bulk (not independent keys) removes per microsecond. This applies to Bulk, Group and Tag APIs.
Average µs/insertBulk Average Number of bulk (not independent keys) inserts per microsecond. This applies to Bulk, Group and Tag APIs.
Messages Count Number of messages entertained by Pub/Sub topic.
Messages Delivered/sec Number of messages delivered to subscribers in one second.
Messages Published/sec Number of messages published in one second.
Messages Expired/sec Number of messages expired in one second.
Message Store Size Size of the message store created within a topic.
Topics Count Number of topics that are registered on cache.

Debugging Counters

Counter Description
Socket send time (ms) Time in milliseconds taken to send a request.
Socket send size (bytes) Bytes sent per second.
Socket recv time (ms) Time in milliseconds taken to receive a request.
Socket recv size (bytes) Bytes received per second.
Nagling msg count How many messages were sent together in socket.send.
TcpUpQueueCount Number of items in TCP up queue.
TcpDownQueueCount Number of items in TCP down queue.
BCastQueueCount Number of items in BCast Queue.
MCastQueueCount Number of items in MCast Queue.
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