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Briefly, this error occurs when OpenSearch is unable to send a response for a specific request. This could be due to network issues, server overload, or a problem with the request itself. To resolve this issue, you can try the following: 1) Check your network connection and ensure it’s stable. 2) Monitor your server’s load and resources to ensure it’s not overloaded. 3) Review the request that’s causing the error, it might be malformed or contain invalid parameters. 4) Restart the OpenSearch service, as sometimes a simple restart can resolve temporary issues.
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This guide will help you check for common problems that cause the log ” failed to send response for ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: response.
Log Context
Log “failed to send response for” classname is TransportInstanceSingleOperationAction.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :
public void onFailure(Exception e) {
try {
channel.sendResponse(e);
} catch (Exception inner) {
inner.addSuppressed(e);
logger.warn("failed to send response for " + shardActionName; inner);
}
}
@Override
protected void doRun() {
