Briefly, this error occurs when Elasticsearch is unable to send an error message to a specific channel for a particular action. This could be due to network issues, incorrect configuration, or the channel being unavailable. To resolve this issue, you can check the network connectivity, ensure the channel is available and correctly configured, and check the Elasticsearch logs for more detailed error information. If the problem persists, you may need to restart the Elasticsearch service or even the entire server.
This guide will help you check for common problems that cause the log ” failed to notify channel of error message for action [” + action + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .
Log Context
Log “failed to notify channel of error message for action [” + action + “]” classname is TransportService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
private static void handleSendToLocalException(DirectResponseChannel channel; Exception e; String action) {
try {
channel.sendResponse(e);
} catch (Exception inner) {
inner.addSuppressed(e);
logger.warn(() -> "failed to notify channel of error message for action [" + action + "]"; inner);
}
}
private boolean shouldTraceAction(String action) {
return shouldTraceAction(action; tracerLogInclude; tracerLogExclude);
