Hello, I upgraded from glusterfs-1.3.12.tar.gz to glusterfs-2.0.0rc4.tar.gz because I could not complete a rdiff-backup without inexplicable errors. My efforts have been rewarded with a crash, for which some logs are displayed below. The backend is unify, with multiple afr subvolumes of two ext3 volumes each. Here is how the client side of glusterfs died: 2009-03-14 13:32:15 W [afr-self-heal-data.c:798:afr_sh_data_fix] afr4: Picking favorite child u100-rs1 as authentic source to resolve conflicting data of /backup5/robbie.foo.co.za/rdiff-backup-data/mirror_metadata.2009-03-14T08:00:17+02:00.snapshot.gz 2009-03-14 13:32:15 W [afr-self-heal-data.c:646:afr_sh_data_open_cbk] afr4: sourcing file /backup5/robbie.foo.co.za/rdiff-backup-data/mirror_meta data.2009-03-14T08:00:17+02:00.snapshot.gz from u100-rs1 to other sinks 2009-03-14 13:32:22 E [socket.c:102:__socket_rwv] u50-dcc1: readv failed (Bad address) 2009-03-14 13:32:22 E [socket.c:634:__socket_proto_state_machine] u50-dcc1: read (Bad address) in state 3 (192.168.227.65:6996) 2009-03-14 13:32:22 E [saved-frames.c:169:saved_frames_unwind] u50-dcc1: forced unwinding frame type(1) op(READ) 2009-03-14 13:32:22 E [socket.c:102:__socket_rwv] u50-dr1: readv failed (Bad address) 2009-03-14 13:32:22 E [socket.c:634:__socket_proto_state_machine] u50-dr1: read (Bad address) in state 3 (192.168.227.31:6996) 2009-03-14 13:32:22 E [saved-frames.c:169:saved_frames_unwind] u50-dr1: forced unwinding frame type(1) op(READ) 2009-03-14 13:32:22 E [fuse-bridge.c:1548:fuse_readv_cbk] glusterfs-fuse: 5998294: READ => -1 (Transport endpoint is not connected) 2009-03-14 13:33:03 E [socket.c:102:__socket_rwv] u50-dr2: readv failed (Bad address) 2009-03-14 13:33:03 E [socket.c:634:__socket_proto_state_machine] u50-dr2: read (Bad address) in state 3 (192.168.227.32:6996) 2009-03-14 13:33:03 E [saved-frames.c:169:saved_frames_unwind] u50-dr2: forced unwinding frame type(1) op(READ) 2009-03-14 13:33:03 E [socket.c:102:__socket_rwv] u50-rs3: readv failed (Bad address) 2009-03-14 13:33:03 E [socket.c:634:__socket_proto_state_machine] u50-rs3: read (Bad address) in state 3 (192.168.227.59:6996) 2009-03-14 13:33:03 E [saved-frames.c:169:saved_frames_unwind] u50-rs3: forced unwinding frame type(1) op(READ) 2009-03-14 13:33:03 E [fuse-bridge.c:1548:fuse_readv_cbk] glusterfs-fuse: 6006118: READ => -1 (Transport endpoint is not connected) 2009-03-14 13:33:03 E [fuse-bridge.c:1548:fuse_readv_cbk] glusterfs-fuse: 6006119: READ => -1 (Transport endpoint is not connected) 2009-03-14 13:33:03 E [fuse-bridge.c:1548:fuse_readv_cbk] glusterfs-fuse: 6006120: READ => -1 (Transport endpoint is not connected) 2009-03-14 13:33:03 E [fuse-bridge.c:1548:fuse_readv_cbk] glusterfs-fuse: 6006121: READ => -1 (Transport endpoint is not connected) pending frames: ? patchset: cb602a1d7d41587c24379cb2636961ab91446f86 + signal received: 6 configuration details:argp 1 backtrace 1 dlfcn 1 fdatasync 1 libpthread 1 llistxattr 1 setfsid 1 spinlock 1 epoll.h 1 xattr.h 1 st_atim.tv_nsec 1 package-string: glusterfs 2.0.0rc4 [0x381420] /lib/libc.so.6(abort+0x101)[0xb86451] /usr/lib/glusterfs/2.0.0rc4/xlator/mount/fuse.so[0x54b9a8] /lib/libpthread.so.0[0xd302db] /lib/libc.so.6(clone+0x5e)[0xc2912e] --------- On the server side, the following messages don't enlighten me, but do remind me that there was another client running version 1.13 still connecting. It looks like the server just noticed that the client died. 2009-03-14 13:30:03 E [socket.c:583:__socket_proto_state_machine] server: socket header validate failed (192.168.227.167:1023). possible mismatch of transport-type between server and client volumes, or version mismatch 2009-03-14 13:30:03 N [server-protocol.c:8048:notify] server: 192.168.227.167:1023 disconnected 2009-03-14 13:31:45 E [socket.c:463:__socket_proto_validate_header] server: socket header signature does not match :O (42.6c.6f) 2009-03-14 13:31:45 E [socket.c:583:__socket_proto_state_machine] server: socket header validate failed (192.168.227.167:1023). possible mismatch of transport-type between server and client volumes, or version mismatch 2009-03-14 13:31:45 N [server-protocol.c:8048:notify] server: 192.168.227.167:1023 disconnected 2009-03-14 13:32:22 E [socket.c:102:__socket_rwv] server: readv failed (Connection reset by peer) 2009-03-14 13:32:22 E [socket.c:561:__socket_proto_state_machine] server: read (Connection reset by peer) in state 1 (192.168.227.5:1020) 2009-03-14 13:32:22 N [server-protocol.c:8048:notify] server: 192.168.227.5:1020 disconnected 2009-03-14 13:32:22 N [server-protocol.c:7295:mop_setvolume] server: accepted client from 192.168.227.5:1020 2009-03-14 13:35:48 N [server-protocol.c:8048:notify] server: 192.168.227.5:1017 disconnected 2009-03-14 13:35:48 N [server-protocol.c:8048:notify] server: 192.168.227.5:1020 disconnected 2009-03-14 13:35:48 N [server-helpers.c:515:server_connection_destroy] server: destroyed connection of backup5.foo.com-23205-2009/03/14-07:10: 52:777008-u50-dcc1 On another server brick, the 25Gb volume u50-dr1-raw was full (it should have been 50Gb like its peer). As I recall, the free space of the second volume of AFR which does not get checked for disk space (a bug, IMHO). It said this, which could have led to the client-side failure a few minutes later (the clocks are in sync): 2009-03-14 13:30:23 W [posix.c:773:posix_mkdir] u50-dr1-raw: mkdir of /backup5/bumblebee.foo.co.za/rdiff-backup-data/rdiff-backup.tmp.1: No space left on device 2009-03-14 13:30:23 E [server-protocol.c:3478:server_stub_resume] server: 1109657: INODELK (/backup5/bumblebee.foo.co.za/rdiff-backup-data/rdiff- backup.tmp.1) on u50-dr1 returning error: -1 (2) 2009-03-14 13:30:23 E [server-protocol.c:3478:server_stub_resume] server: 1109658: INODELK (/backup5/bumblebee.foo.co.za/rdiff-backup-data/rdiff- backup.tmp.1) on u50-dr1 returning error: -1 (2) 2009-03-14 13:30:23 E [server-protocol.c:3448:server_stub_resume] server: 3184942: ENTRYLK (/backup5/bumblebee.foo.co.za/rdiff-backup-data/rdiff- backup.tmp.1) on u50-dr1 for key <nul> returning error: -1 (2) 2009-03-14 13:30:23 E [server-protocol.c:3448:server_stub_resume] server: 3184943: ENTRYLK (/backup5/bumblebee.foo.co.za/rdiff-backup-data/rdiff- backup.tmp.1) on u50-dr1 for key <nul> returning error: -1 (2) 2009-03-14 13:30:23 E [server-protocol.c:3448:server_stub_resume] server: 3184947: ENTRYLK (/backup5/bumblebee.foo.co.za/rdiff-backup-data/rdiff- backup.tmp.1) on u50-dr1 for key hl returning error: -1 (2) 2009-03-14 13:30:23 E [server-protocol.c:3448:server_stub_resume] server: 3184949: ENTRYLK (/backup5/bumblebee.foo.co.za/rdiff-backup-data/rdiff- backup.tmp.1) on u50-dr1 for key hl returning error: -1 (2) 2009-03-14 13:30:23 E [server-protocol.c:3478:server_stub_resume] server: 1109660: INODELK (/backup5/bumblebee.foo.co.za/rdiff-backup-data/rdiff- backup.tmp.1/hl) on u50-dr1 returning error: -1 (2) 2009-03-14 13:30:23 E [server-protocol.c:3478:server_stub_resume] server: 1109661: INODELK (/backup5/bumblebee.foo.co.za/rdiff-backup-data/rdiff- backup.tmp.1/hl) on u50-dr1 returning error: -1 (2) 2009-03-14 13:30:23 E [server-protocol.c:3448:server_stub_resume] server: 3184952: ENTRYLK (/backup5/bumblebee.foo.co.za/rdiff-backup-data/rdiff- backup.tmp.1/hl) on u50-dr1 for key <nul> returning error: -1 (2) 2009-03-14 13:30:23 E [server-protocol.c:3448:server_stub_resume] server: 3184953: ENTRYLK (/backup5/bumblebee.foo.co.za/rdiff-backup-data/rdiff- backup.tmp.1/hl) on u50-dr1 for key <nul> returning error: -1 (2) 2009-03-14 13:30:23 E [server-protocol.c:2774:server_stub_resume] server: 1109663: XATTROP (/backup5/bumblebee.foo.co.za/rdiff-backup-data/rdiff- backup.tmp.1) on u50-dr1 returning error: -1 (2) 2009-03-14 13:30:23 E [server-protocol.c:2868:server_stub_resume] server: 1109665: RMDIR (/backup5/bumblebee.foo.co.za/rdiff-backup-data/rdiff-ba ckup.tmp.1) on u50-dr1 returning error: -1 (2) 2009-03-14 13:31:45 E [socket.c:463:__socket_proto_validate_header] server: socket header signature does not match :O (42.6c.6f) 2009-03-14 13:31:45 E [socket.c:583:__socket_proto_state_machine] server: socket header validate failed (192.168.227.167:1022). possible mismatch of transport-type between server and client volumes, or version mismatch 2009-03-14 13:31:45 N [server-protocol.c:8048:notify] server: 192.168.227.167:1022 disconnected 2009-03-14 13:32:22 E [socket.c:102:__socket_rwv] server: readv failed (Connection reset by peer) 2009-03-14 13:32:22 E [socket.c:561:__socket_proto_state_machine] server: read (Connection reset by peer) in state 1 (192.168.227.5:1016) 2009-03-14 13:32:22 N [server-protocol.c:8048:notify] server: 192.168.227.5:1016 disconnected 2009-03-14 13:32:23 N [server-protocol.c:7295:mop_setvolume] server: accepted client from 192.168.227.5:1016 I may have to move the backup in question off glusterfs (if I can just find the space somewhere), since it has taken 4 days to realise that the backing up is not just slow, but faulty. (Of course, if I can't fix it, I'll win a trip to the data center to install a new machine to replace the system.)