Log Files in the install-dir\mgr Directory

Log Monitor scans the messages log at regular intervals for entries of the configured minimum severity and generates corresponding notifications, which it writes to the alerts log, install-dir\mgr\alerts.log, by default. Log Monitor can be configured to send email notifications instead; see Using Log Monitor.

The initialization log, iboot.log, contains information about the initialization of the InterSystems IRIS instance.

The journal history log, journal.log, contains a list of all journal files maintained by the InterSystems IRIS instance and is used by all journal-related functions, utilities, and APIs to locate journal files. See Journaling.

InterSystems IRIS reports a variety of messages to the messages log file (messages.log), including: general messages; startup/shutdown, license, and network errors; certain operating system errors; and the success or failure of jobs started remotely from other systems. System Monitor also writes notifications to the messages log. The directory for messages.log can be configured (see console), but the default location is install-dir\mgr.

On Windows-based platforms, all console messages are sent to the messages log file, messages.log. On UNIX®/Linux platforms, you can configure console messages to be sent to the messages log file, the console terminal, or both.

The size of the messages.log file is monitored by System Monitor. The file grows until it reaches the configured maximum size, at which point InterSystems IRIS saves the file and starts a new one. See MaxConsoleLogSize for information about configuring the maximum messages log size.

You can view the messages log from the View Messages Log page of the Management Portal (System Operation > System Logs > Messages Log). If the messages log is larger than 1 MB, only the most recent 1 MB portion is displayed by the Management Portal. Click the Show entire file link to display the entire file, which may require some time if the file is very large.

Status messages about the functioning of System Monitor (see Using System Monitor) are written to the System Monitor log, install-dir\mgr\SystemMonitor.log.

The size of the SystemMonitor.log file is monitored by System Monitor. The file grows until it reaches the maximum size of 5 MB, at which point it is renamed to SystemMonitor.log.old, overwriting any existing SystemMonitor.log.old file, and a new SystemMonitor.log is created. The maximum number of megabytes used by the System Monitor log is therefore 10 MB.

You can view the messages log from the System Monitor Log page of the Management Portal (System Operation > System Logs > System Monitor Log). If the System Monitor log is larger than 1 MB, only the most recent 1 MB portion is displayed by the Management Portal. Click the Show entire file link to display the entire file, which may require some time if the file is very large.