On 05/05/2015 04:34 PM, Kingsley wrote:
On Tue, 2015-05-05 at 15:08 +0530, Vijay Bellur wrote:
[snip]
I have seen this before and it primarily seems to be related to the
readdir calls done by git clone.
Turning on these options might help to some extent:
gluster volume set <volname> performance.readdir-ahead on
gluster volume set <volname> cluster.readdir-optimize on
Is there a list of all performance tuning options, and a description of
what they do? Even better if it details pros/cons of using a particular
option, or circumstances in which you might want to use it.
If such a list exists, it would be very useful. I've tried googling but
can only find pages for very old versions (eg gluster 3.2) and only
detailing /some/ options.
Knowing what the value defaults to would also be handy. In a separate
thread, someone advised me to do "gluster volume set <VOLNAME>
performance.flush-behind off", but when I found that didn't help (the
issue turned out to be something I was doing, not a fault in gluster) I
couldn't figure out what the default value was, so I didn't know whether
to leave it off, or whether it had previously been on.
Is there anything available?
Thanks for this feedback. This is something that I would like to see
captured too.
Raghavendra, Rafi - would you be able to help create a document on this one?
-Vijay
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