Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which can resolve issues that cause many errors.
This guide will help you check for common problems that cause the log ” Cannot notify file changes listener ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: discovery-file.
Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.
Log Context
Log “Cannot notify file changes listener” classname is FileWatcher.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
private void onFileChanged() {
for (FileChangesListener listener : listeners()) {
try {
listener.onFileChanged(file);
} catch (Exception e) {
logger.warn("cannot notify file changes listener"; e);
}
}
}
