Mutliline.pattern – This configuration option defines the regular expression pattern to match. Adding the configuration options below to the filebeat.yml input section will ensure that the Java stack trace referenced above will be sent as a single document. You can configure the filebeat.yml input section filebeat.inputs to add a few multiline configuration options to make sure that multiline logs, like stack traces, are sent as one complete document. When logging application logs with Filebeat, users can avoid this issue by adding configuration options in the filebeat.yml file. This makes it difficult to search and understand errors and exceptions within the stack trace as they are divorced from their context as a common event. So, the stack trace above would be seen in Kibana as four separate documents. When shipping application logs with an open source light shipper like Filebeat, each line of a stack trace will be seen in Kibana as an individual document. When using a logging tool like the ELK stack, it can be difficult to identify and search for a stack trace without the right configuration in place. An example of a Java stack trace can be seen here: Exception in thread "main" Īt .getTitle(Book.java:16)Īt .getBookTitles(Author.java:25)Īt .main(Bootstrap.java:14) The stack trace includes the line in question that encountered the error, as well as the error itself. A stack trace is a sequence of method calls that an application was in the middle of when an exception was thrown. Multiline logs provide valuable information for developers when troubleshooting issues with applications.
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