@Bhagavan Basvani , Thank you for the question. Following is a summary of the error your application has hit.
Address already in use
Typically, only one usage of each socket address (protocol/IP address/port) is permitted. This error occurs if an application attempts to bind a socket to an IP address/port that has already been used for an existing socket, or a socket that was not closed properly, or one that is still in the process of closing. For server applications that need to bind multiple sockets to the same port number, consider using setsockopt (SO_REUSEADDR). Client applications usually need not call bind at all—connect chooses an unused port automatically. When bind is called with a wildcard address (involving ADDR_ANY), a WSAEADDRINUSE error could be delayed until the specific address is committed. This could happen with a call to another function later, including connect, listen, WSAConnect, or WSAJoinLeaf.
For more information please refer to this document.
If this is seen with significantly large outbound traffic generated from the cluster, there is a possibility that there is SNAT port exhaustion. [Reference] To mitigate exhausting SNAT ports please follow this article.
Hope this helps.
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