13.07.2016 08:46, Pranith Kumar Karampuri пишет:
On Wed, Jul 13, 2016 at 10:10 AM, Dmitry Melekhov <[email protected]
<mailto:[email protected]>> wrote:
13.07.2016 08:36, Pranith Kumar Karampuri пишет:
On Wed, Jul 13, 2016 at 9:35 AM, Dmitry Melekhov <[email protected]
<mailto:[email protected]>> wrote:
13.07.2016 01:52, Anuradha Talur пишет:
----- Original Message -----
From: "Dmitry Melekhov" <[email protected]
<mailto:[email protected]>>
To: "Pranith Kumar Karampuri" <[email protected]
<mailto:[email protected]>>
Cc: "gluster-users" <[email protected]
<mailto:[email protected]>>
Sent: Tuesday, July 12, 2016 9:27:17 PM
Subject: Re: [Gluster-users] 3.7.13, index healing
broken?
12.07.2016 17:39, Pranith Kumar Karampuri пишет:
Wow, what are the steps to recreate the problem?
just set file length to zero, always reproducible.
If you are setting the file length to 0 on one of the
bricks (looks like
that is the case), it is not a bug.
Index heal relies on failures seen from the mount point(s)
to identify the files that need heal. It won't be able to
recognize any file
modification done directly on bricks. Same goes for heal
info command which
is the reason heal info also shows 0 entries.
Well, this makes self-heal useless then- if any file is
accidently corrupted or deleted (yes! if file is deleted
directly from brick this is no recognized by idex heal too),
then it will not be self-healed, because self-heal uses index
heal.
It is better to look into bit-rot feature if you want to guard
against these kinds of problems.
Bit rot detects bit problems, not missing files or their wrong
length, i.e. this is overhead for such simple task.
It detects wrong length. Because checksum won't match anymore.
Yes, sure. I guess that it will detect missed files too. But it needs
far more resources, then just comparing directories in bricks?
What use-case you are trying out is leading to changing things
directly on the brick?
I'm trying to test gluster failure tolerance and right now I'm not happy
with it...
Thank you!
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