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Briefly, this error occurs when OpenSearch fails to terminate a network connection properly, specifically the socket connection. This could be due to network issues, system resource limitations, or improper handling of socket connections in the code. To resolve this, you can try to identify and fix network issues, increase system resources, or review the code handling socket connections to ensure they are properly opened and closed. Additionally, ensure that your OpenSearch instance is updated to the latest version to benefit from any bug fixes related to socket handling.
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This guide will help you check for common problems that cause the log ” Failed to close a socket. ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: .
Log Context
Log “Failed to close a socket.” classname is CopyBytesServerSocketChannel.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :
logger.warn("Failed to create a new channel from an accepted socket."; t);
try {
ch.close();
} catch (Throwable t2) {
logger.warn("Failed to close a socket."; t2);
}
}
return 0;
}
