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Show / Hide Table of Contents
  • 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

Error Logging

When running a cache, error messages can be helpful. These messages can be saved to a log file if required.

Enable Logs for .NET

Using NCache Manager

NCache Manager can be used to enable logging.

  • Go to Options tab of Cluster/Local Cache view window.

  • Check the Enable error logging checkbox. If you want to enable detailed error logging, check the Enable detailed error logging checkbox. Each time user enables error logging a new trace file is created in %NCHOME%/log-files folder with current time stamp.

Enabling error logging generates FATAL and NORMAL logs, while enabling detailed error logging generates a log file containing INFO, DEBUG and WARNING logs. By default, logging is disabled. Enabling "Detailed Error Logging" generates logs very frequently, which may affect the performance of cache/cluster. In case of an error, it is reported in the application's Event Log in system.

Manually Editing NCache Configuration

Important

Make sure the cache is stopped before making any configuration changes.

  • Enable/disable logs through config.ncconf by specifying the <logging> tag under the <cache-settings> tag:
 <cache-settings ...>
   <logging enable-logs="True" trace-errors="True" trace-notices="False" trace-warnings="False" trace-debug="False" log-path=""/>
</cache-settings>
  • For Client Logging, modify the values in client.ncconf of the client node:
<cache id="myreplicatedcache" load-balance="True" enable-client-logs="False" log-level="error">
      <server name="20.200.20.38"/>
</cache>
  • Once changes are made, start the cache and restart NCache service.

Enable logs for Java Client

Logging in the NCache Java client can be controlled by setting enableNCLogs property before initializing the cache.

System.setProperty("enableNCLogs", Level.INFO.toString());

Log file is generated in the application home directory. The above property will enable logging of all INFO messages. It will also enable logging of SEVERE and WARNING messages.

The Level class (Java.util.logging) defines a set of standard logging levels that can be used to control logging output. The logging Level objects are ordered and are specified by ordered integers. Enabling logging at a given level also enables logging at all higher levels. Clients should use the predefined Level constants such as Level.SEVERE. The levels in descending order are as follows:

  • SEVERE (highest value)
  • WARNING
  • INFO
  • CONFIG
  • FINE
  • FINER
  • FINEST (lowest value)

In addition, there is a level OFF that can be used to turn off logging, and a level ALL that can be used to enable logging of all messages.

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