Briefly, this error occurs when Elasticsearch encounters an unexpected issue while trying to close HTTP channels. This could be due to network issues, high load on the server, or a bug in the Elasticsearch software. To resolve this issue, you can try restarting the Elasticsearch service, checking the server’s network connection, or updating Elasticsearch to the latest version. If the problem persists, consider checking the server’s load and optimizing your Elasticsearch queries to reduce the load.
This guide will help you check for common problems that cause the log ” unexpected exception while waiting for http channels to close ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .
Log Context
Log “unexpected exception while waiting for http channels to close” classname is AbstractHttpServerTransport.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
try {
allClientsClosedListener.get();
} catch (Exception e) {
assert false : e;
logger.warn("unexpected exception while waiting for http channels to close"; e);
}
}
stopInternal();
}
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