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The log messages produced by Qlik Sense provide important information about the general well-being of the deployment.
The logging is based on the log4net component in Apache Logging Services. This means that Qlik Sense uses a standardized logging framework and conforms to standard logging procedures.
Updated logging framework
An updated logging framework was introduced in Qlik Sense version 2.0. Unless otherwise stated, the documentation describes the updated logging framework.
Legacy logging framework
The legacy logging framework is still available in Qlik Sense, but the logs are as of Qlik Sense version 2.0 referred to as trace logs. The log files remain the same, in the old logging format, but they are stored in a new location.
See: Trace logs
Centralized logging framework
As of the
Reading and analyzing log files in Qlik Sense
The log files can be read and analyzed using Qlik Sense, which includes the following pre-defined, log-related data connections after installation:
- ServerLogFolder: Links to the active log files.
- ArchivedLogsFolder: Links to the archived log files.
The data connections can be edited in the Qlik Management Console (QMC).
In addition, users with root, security, content, or deployment administrator rights can use the Qlik Sense log data in apps by selecting one of the data connections listed above in the data load editor.
With the introduction of shared persistence, all nodes have direct access to a common database and file system. The Qlik Sense services (proxy, scheduler, repository, and engine) transfer log messages to the Qlik Logging Service. The Qlik Logging Service centralizes the logging by collecting all the messages and inserting them into the PostgreSQL database.
Centralized logging uses the