Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many errors.
To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.
This guide will help you check for common problems that cause the log ” Unexpected error while releasing pipelined http responses ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: handler.
Log Context
Log “Unexpected error while releasing pipelined http responses” classname is HttpPipeliningHandler.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
while ((pipelinedResponse = holdingQueue.poll()) != null) {
try {
pipelinedResponse.release();
pipelinedResponse.promise().setFailure(closedChannelException);
} catch (Exception e) {
logger.error("unexpected error while releasing pipelined http responses"; e);
}
}
}
ctx.close(promise);
}
