[Gluster-users] performance/writebehind behavior

Richard van der Hoff richard at swiftserve.com
Mon Jul 28 17:43:18 UTC 2014

On 28/07/14 18:05, Anand Avati wrote:
> Whether flush-behind is enabled or not, close() will guarantee all
> previous write()s on that fd have been acknowledged by server.

Thanks Anand. So can you explain why the 'wc' in my example doesn't see 
all of the data written by the dd?

>             $ dd if=/dev/zero of=/shared/vod/zero bs=1024 count=1000; wc -c
>             /shared/vod/zero
>             1000+0 records in
>             1000+0 records out
>             1024000 bytes (1.0 MB) copied, 0.133975 s, 7.6 MB/s
>             1016832 /shared/vod/zero

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