sheepdog v0.4.0 change the storage backend from 'simple' to 'farm' so that you required some manual task from 'good practices' (especially converting the storage backend from simple to farm).<br><br>
<div class="gmail_quote">On Thu, Jul 26, 2012 at 9:27 PM, Bastian Scholz <span dir="ltr"><<a href="mailto:nimrodxx@gmx.de" target="_blank">nimrodxx@gmx.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Sorry, if the mail arrives two times, used the wrong sender<br>
Mailadress...<br>
<br>
Hi David,<br>
<br>
at the moment I shut down the complete cluster before<br>
updating it (collie cluster shutdown)<br>
<br>
But I had some complete data losses too with the actual<br>
debian package. At the moment I try to understand, why<br>
this happens...<br>
<br>
Cheers<br>
<br>
Bastian<br>
<br>
Am 2012-07-26 15:54, schrieb David Douard:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
<br>
I'm trying the latest deb package made by Jens, and I encounter<br>
problems: I cannot make the cluster accept IO.<br>
<br>
My main problem is that I find it very easy to loose my cluster; almost<br>
every time I try to shutdown the cluster, it ends with a situation where<br>
the cluster is corrupted (with "Failed to read object 805a6c0500000000<br>
No object found" kind of messages).<br>
<br>
I lost the data when I upgraded the deb packages for example, as I use<br>
in this context a cssh session, so all nodes are upgraded at the same<br>
time, and the upgrade provoque a restart of the sheepdog service.<br>
<br>
Is this behavior somewhat expected, since I do not follow some kind of<br>
"good practices"? What are theses good practices? Is sheepdog<br>
"compatible" with sysadmin automating tools like puppet or salt (that do<br>
propagate changes to several nodes at a time)? How can I configure<br>
something like automatic shutdown on power outage (I'm using apcupsd)?<br>
How do I restart my cluster after a shutdown? Can I just fire a "service<br>
sheepdog start" in a cssh session?<br>
<br>
I guess these questions are also somewhat related to the discussion<br>
about the possibility to sheepdog to detect that a node is down for a<br>
short while, and not really failed, etc.<br>
<br>
So, how do you guys manage your sheepdog clusters so you don't loose<br>
your data?<span class="HOEnZb"><font color="#888888"><br>
</font></span></blockquote><span class="HOEnZb"><font color="#888888">
<br>
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