In Red Hat OpenStack Platform (hereinafter RHOSP) environment, set the communication timeout value of the GFS Shared File System to 630 seconds or more.
When a node fails in RHOSP environment, this setting prevents the GFS Shared File System from being blockaded by detecting a communication timeout during MDS failure recovery.
See
For details on how to set a communication timeout value and the notes, see "14.1.2 Communication timeout value."
