Xlib: Maximum number of clients reached

Solution Unverified - Updated -

Issue

  • We have many X applications opened on the system.
  • Below error message is displayed at one point
Xlib: connection to ":0.0" refused by server Xlib: Maximum number of clients reached Error: Can't open display: :0.0
  • No new applications can be opened after this.
  • This is observed with custom software and can be simulated while opening many xterm applications as well.

Environment

  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 5

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