Hello List, I have two gluster 3.0.5 servers exporting a couple of mirror-0 volumes to a bunch of clients. One of the volumes stopped replicating while the other volumes are still working well. A client can mount the trouble volume from both gluster servers but a write is going only to the server that the client is mounting the volume from and not to the other server. Looking in the log files I noticed the following behavior: When a client mounts the volume from server A, I am getting the following messages in the log files: 1. Log file on server A: [2010-12-20 11:21:40] N [server-protocol.c:5852:mop_setvolume] server-tcp: accepted client from Client_IP:1022 [2010-12-20 11:21:40] N [server-protocol.c:5852:mop_setvolume] server-tcp: accepted client from Client_IP:1008 2. Log file on server B: [2010-12-20 11:59:41] N [server-helpers.c:842:server_connection_destroy] server-tcp: destroyed connection of ClentName-5678-2010/12/20-14:59:41:630525- gluster2-volume100 [2010-12-20 11:59:52] N [server-protocol.c:6788:notify] server-tcp: ClientIP:1016 disconnected [2010-12-20 11:59:52] N [server-helpers.c:842:server_connection_destroy] server-tcp: destroyed connection of ClientName-5678-2010/12/20-14:59:41:630525-gluster2-volume100 [2010-12-20 11:59:52] N [server-protocol.c:6788:notify] server-tcp: ClientIP:1015 disconnected [2010-12-20 11:59:52] N [server-helpers.c:842:server_connection_destroy] server-tcp: destroyed connection of ClientName-5678-2010/12/20-14:59:41:630525-gluster2-volume100 [2010-12-20 12:00:02] N [server-protocol.c:6788:notify] server-tcp: ClientIP:1014 disconnected ..................................................................... ..................................................................... And the above messages are flooding the log file on server B 3. Log file on the client: ................. [2010-12-20 14:11:46] N [glusterfsd.c:1409:main] glusterfs: Successfully started [2010-12-20 14:11:46] N [client-protocol.c:6288:client_setvolume_cbk] gluster1-volume100: Connected to ServerA_IP:6996, attached to remote volume 'brick-volume100'. [2010-12-20 14:11:46] N [afr.c:2648:notify] mirror-0: Subvolume 'gluster1- volume100' came back up; going online. [2010-12-20 14:11:46] N [client-protocol.c:6288:client_setvolume_cbk] gluster1-volume100: Connected to ServerA_IP:6996, attached to remote volume 'brick-volume100'. [2010-12-20 14:11:46] N [afr.c:2648:notify] mirror-0: Subvolume 'gluster1- volume100' came back up; going online. [2010-12-20 14:11:46] N [fuse-bridge.c:2953:fuse_init] glusterfs-fuse: FUSE inited with protocol versions: glusterfs 7.13 kernel 7.13 ........................................... ........................................... [2010-12-20 14:13:05] E [afr.c:107:afr_set_split_brain] mirror-0: invalid argument: inode ................................... The opposite behavior will be observed if the client mounts the volume from server B insetad of server A. I know that there is a new version of glusterfs and I am planning to migrate it soon but in the mean time I have to fix the current setup. Thank you in advance!!! Regards, Vlad