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Introduction

Within the ARC screen, users can get all the information required in order to understand and fix an error, including the state, stack, and source code that led to it. To complement this, OverOps also displays a Log View for each error and exception, which shows the last 250 log statements leading up to the error, giving an easy way to work with the OverOps code (“classic”) and log data - without leaving the application.

Availability and Support

This feature is available to OverOps users from version 3.22.0, and supports the following logging frameworks: logback and log4j.

Opening the Log View

To open the Log View:

  • From the ARC screen, click Log on the event header:
    From this tab, you can also switch to Code View or JVM View.

OR

  • Create a Log View URL: add “#log” at the end of the event URL.

Log View Basics

By default, the Log View contains the 250 log lines that preceded the event.

Log ViewLog View

Log View

The Log View enables you to sift through the log entries (“info”), log warnings and error entries. Since OverOps creates the Log View directly from the JVM, additional information, such as “DEBUG” and “TRACE” entries, is not always available in the logs themselves. Different log events are highlighted for convenience, and navigation between them is available using keyboard shortcuts (arrows, page up/down/home/end).

In the Log View, the error or exception lines are displayed first, followed by the Stack Trace. OverOps also displays the context of the event, by highlighting the beginning of the relevant transaction in which the event happened.

Note : All the advanced features and functionalities in the ARC screen are also available in Log View - handling the event (archiving, resolving, labeling), sharing it (via Jira or OverOps' notes) and searching within it.

In addition, as OverOps injects log links into your log files, the OverOps URLs are displayed within the Log View, allowing you to open new errors and exceptions in a new tab directly from the Log View, as you do from the log file itself.

Log Level

  • Logback: TRACE level and up
  • Log4j/Log4j2: According to the user's config

📘

Log4j2 allows for custom log levels and names, however, OverOps reports on levels <= 300.

Missing Log Statements

Message

Reason

This snapshot was taken before log views were introduced.
Please try viewing a more recent snapshot.

The snapshot is out-of-date

Log views were introduced in version 3.22.0.
Please upgrade your installation.
[UPGRADE button]

The OverOps Agent or Collector needs to be upgraded

No log messages have been recorded for this snapshot.

No Log messages detected

Log view is not available due to Storage Server error at the time of this snapshot. Please check storage server connectivity and status

Storage Server error

No supported Logging framework was detected.
Check out our documentation for supported frameworks list

No supported log provider was detected

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Ooops, something went wrong…
An error has occurred while recording log messages for this snapshot. Please try viewing another snapshot.

Cerebro exception or Unknown error

No log messages were detected for current entry point.
This might also occur during new event initialization - in this case log messages will be captured starting from next snapshot.

Context / transaction data is missing

Advanced

To change the number of characters recorded per log statement:

  • Add the following argument to your JVM startup arguments (default is 10K):
-Dtakipi.cerebro.message.max.length=1000

Related Articles

Opening the ARC Analysis Screen
The Information and Actions Menu