Dear All, I have a question regarding the number of lock servers required for a 2 node setup. Both nodes can run software that write data, but never at the same time (controlled via cluster software). If I understand the text correct on: http://www.gluster.com/community/documentation/index.php/Understanding_AFR_Translator#Write_algorithm and http://www.mail-archive.com/gluster-devel at nongnu.org/msg06707.html Is it advisable to increase the number of lock servers to ensure that when the first node in the subvolume fails the other node can continue to work correctly even if the first node comes back? Text at "Locking options": These options let you specify the number of lock servers to use for each class of file operations. The default values are satisfactory in most cases. If you are extra paranoid, you may want to increase the values [more info requested: what are the benefits and drawbacks to doing this]. 2nd question: What happens if the first node holds a lock on a file and fails (power down or kernel panic)? What if the second node now wants to modify this file? Kind regards, Richard
