Briefly, this error occurs when Elasticsearch tries to send a response back to a client, but the connection has already been closed. This could be due to network issues, client-side issues, or the client closing the connection before the response is received. To resolve this issue, you can check the network connection, ensure the client is properly configured to wait for a response, or increase the client’s timeout settings. Also, check if there are any heavy operations that might be causing Elasticsearch to respond slowly, and optimize them if possible.
This guide will help you check for common problems that cause the log ” response channel [” + channel.request().getHttpChannel() + “] closed ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: response, rest.
Log Context
Log “response channel [” + channel.request().getHttpChannel() + “] closed” class name is RestActionListener.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
protected abstract void processResponse(Response response) throws Exception; protected void ensureOpen() {
if (channel.request().getHttpChannel().isOpen() == false) {
throw new TaskCancelledException("response channel [" + channel.request().getHttpChannel() + "] closed");
}
} @Override
public final void onFailure(Exception e) {
