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Apr
28
comment ZFS snapshots and atomic updates
@syneticon-dj -- that's not actually the behavior I observed -- I saw quite clearly that a static (in the source pool) file would not cause IO errors in the destination pool; files changing frequently on the source pool, however, would show this behavior on the target pool.
Apr
24
comment ZFS snapshots and atomic updates
And -- I could see lots of situations where I'd want to use a filessytem this way -- let's say I had a bunch of web files I wanted to atomically update on a bunch of remote servers. I could use rsync and change a symbolic link or I could send a new snapshot to all of them.
Apr
24
comment ZFS snapshots and atomic updates
I wasn't sure what would happen. Unix has a pretty convenient way of dealing with files as they change; I wasn't sure if the same conventions would apply in this scenario. If I'm reading a file and someone else changes it, I'll either see the changes or not, depending on my current offset in the file and where the change took place. Snapshots certainly add another dimension to this problem.
Apr
24
comment ZFS snapshots and atomic updates
The error is seen by the program reading the file, not the programs involved in the snapshot replication.
Apr
24
revised ZFS snapshots and atomic updates
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Apr
24
asked ZFS snapshots and atomic updates
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21
answered Using more than 80% power on a circuit in a disaster scenario
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Aug
29
comment replace a 'space' char in filename with an underscore
This looks like the safest, most portable approach to me. Magic syntax stuff is always a little sketchy and hard for someone else to understand what's going on; this answer uses one of the 2 obvious choices for "character substitution" -- the other being tr IE var=$(echo "$var" | tr ' ' _)
Aug
29
comment replace a 'space' char in filename with an underscore
So this is way off in the weeds but you need to quote both "$1" and "${i// /_}". Also, that ${var///} stuff looks like a non-posix shell extension (bash perhaps)?
Aug
20
comment OSPF routers (with BIRD on debian) recognize each other as neighbors but can't ping each other
Also, please take the time to put the text of the screen shots into the question.
Aug
20
comment OSPF routers (with BIRD on debian) recognize each other as neighbors but can't ping each other
Router A talks to Router B over the 192.168.250.1/30 subnet (A=192.168.250.1 and B=192.168.250.2)
Aug
15
revised OSPF routers (with BIRD on debian) recognize each other as neighbors but can't ping each other
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