For supported RegExp patterns, see RegExp support. Note that the RegExp patterns supported by Filebeat differ somewhat from the patterns supported by Logstash. Specifies the regular expression (RegExp) pattern to match. Let's refer to the descriptions in Elastic's official documentation. For example, you can add the following configuration options to the input part of the filebeat.yml file to ensure that the Java stack trace referenced above will be sent as a single document. You can configure filebeat.inputs in the input part of the filebeat.yml file to add some multiline configuration options to ensure that multiline logs, such as stack traces, are sent as a complete document. You can avoid this problem by adding configuration options to the filebeat.yml file when you use Filebeat to record application logs. As a result, errors and exceptions in the stack trace are separated from their context and are difficult to search for and understand. Therefore, Kibana considers the preceding stack trace as four separate documents. When you send application logs by using a lightweight open-source log ingest node such as Filebeat, Kibana views each line of a stack trace as a single document. When you use a logging tool such as Elastic Stack, you may find it difficult to identify and search for a stack trace without proper configurations. The following sample code shows a Java stack trace: Exception in thread "main" Īt .getTitle(Book.java:16)Īt .getBookTitles(Author.java:25)Īt .main(Bootstrap.java:14) The stack trace includes the exception and the line where the exception occurs. ![]() ![]() A stack trace outputs a list of the method calls that the application was processing an exception was thrown. Typical examples of multiline logs are stack traces. Multiline logs provide valuable information to help developers resolve application problems.
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