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<div class="moz-cite-prefix">13.07.2016 07:46, Pranith Kumar
Karampuri пишет:<br>
</div>
<blockquote
cite="mid:CAOgeEnbiU_n=Gquv7HZGxRvFxK2XpAxpNa1+Hx6KxqbXvpc5oA@mail.gmail.com"
type="cite">
<div dir="ltr"><br>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Jul 12, 2016 at 9:27 PM,
Dmitry Melekhov <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:dm@belkam.com"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:dm@belkam.com">dm@belkam.com</a></a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF"> <br>
<br>
<div>12.07.2016 17:39, Pranith Kumar Karampuri пишет:<br>
</div>
<span class="">
<blockquote type="cite">
<div dir="ltr">Wow, what are the steps to recreate
the problem?<br>
</div>
</blockquote>
<br>
</span> just set file length to zero, always
reproducible.</div>
</blockquote>
<div><br>
</div>
<div>Changing things on the brick i.e. not from gluster
volume mount is not something you want to do. In the worst
case(I have seen this only once in the last 5 years
though) where you do this it can lead to data loss also.
So please be aware of it.<br>
</div>
</div>
</div>
</div>
</blockquote>
<br>
Data replication with gluster is a way to avoid data loss, right? Or
no? If not- why use gluster then?<br>
I though that gluster self-healing will heal or at least report
missed files or files with wrong lenths- i.e. corruptions visible
just by reading brick's directory,<br>
not comparing data as bit rot detection...<br>
If this is not a bug, then gluster is not what I expected :-(<br>
<br>
Thank you!<br>
<blockquote
cite="mid:CAOgeEnbiU_n=Gquv7HZGxRvFxK2XpAxpNa1+Hx6KxqbXvpc5oA@mail.gmail.com"
type="cite">
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<div class="gmail_extra">
<div class="gmail_quote">
<div> </div>
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<div class="h5"><br>
<br>
<blockquote type="cite">
<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Jul 12, 2016 at
3:09 PM, Dmitry Melekhov <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:dm@belkam.com"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:dm@belkam.com">dm@belkam.com</a></a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px
#ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>12.07.2016 13:33, Pranith Kumar
Karampuri пишет:<br>
</div>
<span>
<blockquote type="cite">
<div dir="ltr">What was "gluster
volume heal <volname> info"
showing when you saw this issue?<br>
</div>
</blockquote>
<br>
</span> just reproduced :<br>
<br>
<br>
[root@father brick]# >
gstatus-0.64-3.el7.x86_64.rpm <br>
<span> <br>
[root@father brick]# gluster volume heal
pool <br>
Launching heal operation to perform
index self heal on volume pool has been
successful <br>
Use heal info commands to check status<br>
</span> [root@father brick]# gluster
volume heal pool info<br>
Brick father:/wall/pool/brick<br>
Status: Connected<br>
Number of entries: 0<br>
<br>
Brick son:/wall/pool/brick<br>
Status: Connected<br>
Number of entries: 0<br>
<br>
Brick spirit:/wall/pool/brick<br>
Status: Connected<br>
Number of entries: 0<br>
<br>
[root@father brick]# <br>
<div>
<div> <br>
<br>
<br>
<blockquote type="cite">
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon,
Jul 11, 2016 at 3:28 PM, Dmitry
Melekhov <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:dm@belkam.com"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:dm@belkam.com">dm@belkam.com</a></a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px #ccc
solid;padding-left:1ex">Hello!<br>
<br>
3.7.13, 3 bricks volume.<br>
<br>
inside one of bricks:<br>
<br>
[root@father brick]# ls -l
gstatus-0.64-3.el7.x86_64.rpm<br>
-rw-r--r-- 2 root root 52268
июл 11 13:00
gstatus-0.64-3.el7.x86_64.rpm<br>
[root@father brick]#<br>
<br>
<br>
[root@father brick]# >
gstatus-0.64-3.el7.x86_64.rpm<br>
[root@father brick]# ls -l
gstatus-0.64-3.el7.x86_64.rpm<br>
-rw-r--r-- 2 root root 0 июл
11 13:54
gstatus-0.64-3.el7.x86_64.rpm<br>
[root@father brick]#<br>
<br>
so now file has 0 length.<br>
<br>
try to heal:<br>
<br>
<br>
<br>
[root@father brick]# gluster
volume heal pool<br>
Launching heal operation to
perform index self heal on
volume pool has been
successful<br>
Use heal info commands to
check status<br>
[root@father brick]# ls -l
gstatus-0.64-3.el7.x86_64.rpm<br>
-rw-r--r-- 2 root root 0 июл
11 13:54
gstatus-0.64-3.el7.x86_64.rpm<br>
[root@father brick]#<br>
<br>
<br>
nothing!<br>
<br>
[root@father brick]# gluster
volume heal pool full<br>
Launching heal operation to
perform full self heal on
volume pool has been
successful<br>
Use heal info commands to
check status<br>
[root@father brick]# ls -l
gstatus-0.64-3.el7.x86_64.rpm<br>
-rw-r--r-- 2 root root 52268
июл 11 13:00
gstatus-0.64-3.el7.x86_64.rpm<br>
[root@father brick]#<br>
<br>
<br>
full heal is OK.<br>
<br>
But, self-heal is doing index
heal according to<br>
<br>
<a moz-do-not-send="true"
href="http://staged-gluster-docs.readthedocs.io/en/release3.7.0beta1/Developer-guide/afr-self-heal-daemon/"
rel="noreferrer"
target="_blank">http://staged-gluster-docs.readthedocs.io/en/release3.7.0beta1/Developer-guide/afr-self-heal-daemon/</a><br>
<br>
Is this bug?<br>
<br>
<br>
As far as I remember it worked
in 3.7.10....<br>
<br>
<br>
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target="_blank">Gluster-users@gluster.org</a><br>
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href="http://www.gluster.org/mailman/listinfo/gluster-users"
rel="noreferrer"
target="_blank">http://www.gluster.org/mailman/listinfo/gluster-users</a></blockquote>
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-- <br>
<div
data-smartmail="gmail_signature">
<div dir="ltr">Pranith<br>
</div>
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<br clear="all">
<br>
-- <br>
<div data-smartmail="gmail_signature">
<div dir="ltr">Pranith<br>
</div>
</div>
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</blockquote>
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<br>
<br clear="all">
<br>
-- <br>
<div class="gmail_signature" data-smartmail="gmail_signature">
<div dir="ltr">Pranith<br>
</div>
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