hub: nimSessionWait: epoll_handle: -1 failed EPOLL_CTL_ADD fd:1004 error: 9 error Str: Bad file descriptor

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

UIM proxy hub is seeing many disconnect of hub queues. Looking at the hub.log shows the following:

hub: nimSessionWait: epoll_handle: -1 failed EPOLL_CTL_ADD fd:1004  error: 9   error Str: Bad file descriptor

Environment

• 20.4, 23.4
• hub
• Linux OS

Cause

ulimit was too low for the number of queues that were being used with the proxy hub.

Resolution

Increase the ulimit on the server/user and validate.