Robert Milkowski wrote:
Basically we've implemented a mechanizm to replicate zfs file system
implementing new ioctl based on zfs send|recv. The difference is that
we sleep() for specified time (default 5s) and then ask for new
transcation and if there's one we send it out.
More details really soon I hope.
ps. zdb output sent privately
The smaller file has its first 320MB as a hole, while the larger file is
entirely filled in. You can see this from the zdb output (the first
number on each line is the offset):
Indirect blocks:
0 L2 0:115be2400:1200 4000L/1200P F=10192 B=831417
14000000 L1 0:c0028c00:400 4000L/400P F=30 B=831370
14c40000 L0 0:b8180000:20000 20000L/20000P F=1 B=831367
14c60000 L0 0:b81a0000:20000 20000L/20000P F=1 B=831367
...
vs.
Indirect blocks:
0 L2 0:ea1a0800:1400 4000L/1400P F=12911 B=831388
0 L1 0:2553bb400:400 4000L/400P F=128 B=831346
0 L0 0:255400000:20000 20000L/20000P F=1 B=831346
20000 L0 0:255420000:20000 20000L/20000P F=1 B=831346
40000 L0 0:255440000:20000 20000L/20000P F=1 B=831346
...
How it got that way, I couldn't really say without looking at your code.
If you are able to reproduce this using OpenSolaris bits, let me know.
--matt
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