Sai Srikar Mutya created LOGBACK-1483: ----------------------------------------- Summary: Headers are getting added during every application startup while configuring programmatically Key: LOGBACK-1483 URL: https://jira.qos.ch/browse/LOGBACK-1483 Project: logback Issue Type: Bug Components: logback-core Affects Versions: 1.2.3 Reporter: Sai Srikar Mutya Assignee: Logback dev list Priority: Critical Use case : Application has to write events into a ".tmp" file and there is a time based rolling policy which rotates log file for every minute.   Also, there is a header which needs to be appended for every log file. So I have used ` PatternLayoutEncoderBase` class to set headers and pattern.   Problem: If I am restarting my application during the same minute, Headers are getting appended multiple times.     So we need an option to not append the header if they are already present.   I have also tried an option where we check the file during application startup, but there is a scenario where the application starts during a minute and the events are getting logged in the next minute. -- This message was sent by Atlassian JIRA (v7.3.1#73012)