Briefly, this error occurs when Elasticsearch tries to write logs that have already been written. This could be due to a configuration issue, a bug in the software, or a problem with the underlying storage system. To resolve this issue, you could try checking and correcting the configuration settings, updating Elasticsearch to the latest version to fix any potential bugs, or investigating the storage system for any issues. Additionally, ensure that the system has enough disk space and proper permissions to write logs.
This guide will help you check for common problems that cause the log ” Message back log has already been written ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.
Log Context
Log “Message back log has already been written” classname is AbstractAuditor.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
}
protected void writeBacklog() {
assert backlog != null;
if (backlog == null) {
logger.error("Message back log has already been written");
return;
}
BulkRequest bulkRequest = new BulkRequest();
ToXContent doc = backlog.poll();
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