[Gluster-devel] How to solve the FSYNC() ERR

[Keiviw]

hi,
    I have installed GlusterFS 3.3.0, and now I get Fsync failures when saving files with the O_DIRECT flag in open() and create().
    1, I tried to save a flie in vi and got this error:
        "test" E667: Fsync failed
    2, I see this in the logs:    
        [2016-07-07 14:20:10.325400] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 102:         FSYNC() ERR => -1 (Invalid argument)
        [2016-07-07 14:20:13.930384] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 137:         FSYNC() ERR => -1 (Invalid argument)
        [2016-07-07 14:20:51.199448] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 174:         FLUSH() ERR => -1 (Invalid argument)
        [2016-07-07 14:21:32.804738] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 206:         FLUSH() ERR => -1 (Invalid argument)
        [2016-07-07 14:21:43.702146] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 276:         FSYNC() ERR => -1 (Invalid argument)
        [2016-07-07 14:21:51.296809] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 314:         FSYNC() ERR => -1 (Invalid argument)
        [2016-07-07 14:21:54.062687] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 349:         FSYNC() ERR => -1 (Invalid argument)
        [2016-07-07 14:22:54.678960] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 429:         FSYNC() ERR => -1 (Invalid argument)
        [2016-07-07 14:24:35.546980] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 505:         FSYNC() ERR => -1 (Invalid argument)
        [2016-07-07 14:24:48.696888] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 538:         FSYNC() ERR => -1 (Invalid argument)
        [2016-07-07 14:24:55.824752] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 575:         FSYNC() ERR => -1 (Invalid argument)
        [2016-07-07 14:25:04.364629] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 612:         FSYNC() ERR => -1 (Invalid argument)
        [2016-07-07 14:27:08.579052] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 713:         FSYNC() ERR => -1 (Invalid argument)
        [2016-07-07 14:46:44.635169] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 859:         FLUSH() ERR => -1 (Invalid argument)
        [2016-07-07 14:46:55.892041] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 989:         FLUSH() ERR => -1 (Invalid argument)
        [2016-07-07 14:51:45.904233] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 148747:         FLUSH() ERR => -1 (Invalid argument)
        [2016-07-07 14:54:45.603557] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 148986:         FLUSH() ERR => -1 (Invalid argument)
        [2016-07-07 14:59:18.818972] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 292106:         FLUSH() ERR => -1 (Invalid argument)
        [2016-07-07 15:48:32.708207] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse: 6753592:         FLUSH() ERR => -1 (Invalid argument)
        [2016-07-07 16:24:10.476228] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse:         10733703: FLUSH() ERR => -1 (Invalid argument)
        [2016-07-07 16:30:42.388220] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse:         11497698: FLUSH() ERR => -1 (Invalid argument)
        [2016-07-07 16:44:18.247511] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse:         12037185: FLUSH() ERR => -1 (Invalid argument)
        [2016-07-08 01:00:55.131141] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse:         12181783: FLUSH() ERR => -1 (Invalid argument)
        [2016-07-08 06:54:13.418607] W [fuse-bridge.c:968:fuse_err_cbk] 0-glusterfs-fuse:         12397060: FLUSH() ERR => -1 (Invalid argument)
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