[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Gluster-devel] AFR / Self Heal
From: |
Gareth Bult |
Subject: |
[Gluster-devel] AFR / Self Heal |
Date: |
Sun, 13 Jan 2008 15:05:50 +0000 (GMT) |
Hi,
At the moment, to kick in a self-heal on an AFR volume, it seems you need to
close and re-open a given file.
Also, while a self heal is in progress, the file will not open fully and cannot
be used until the heal completes.
Looking at the roadmap for 1.4 the implication is that these features may be
added ..
Can anyone can confirm this and possibly indicate how long it's likely to take
for this to become available ?
just fyi;
Using XEN images at the moment on gluster FS it goes like this;
Migration
=======
xm migrate -l domain nodeb -- takes 3-4 seconds with less than 1 second
downtime
Gluster restarts
============
killall glusterfsd
glusterfsd
(all images are now running off other nodes)
For each XEN instance;
xm save domain /tmp/domain (4 seconds)
head -c1 /gluster/images/domain.disk > /dev/null (~20 seconds)
xm restore /tmp/domain (4 seconds)
1) being able to start a self-heal and simply blocking an open file would save
30% of the time required
2) not having to copy a 2-3Gb image but instead use failed transactions would
probably save 95%+
Gareth.
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [Gluster-devel] AFR / Self Heal,
Gareth Bult <=