Perl 6 - the future is here, just unevenly distributed

IRC log for #gluster-dev, 2015-08-12

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All times shown according to UTC.

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06:04 ndevos jiffin: pong?
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06:14 ndevos jiffin: I'll be afk again, ttyl!
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09:00 hchiramm hgowtham++
09:00 glusterbot hchiramm: hgowtham's karma is now 2
09:00 hchiramm ashiq++
09:00 glusterbot hchiramm: ashiq's karma is now 9
09:01 ashiq hchiramm++
09:01 glusterbot ashiq: hchiramm's karma is now 58
09:02 hgowtham hchiramm++
09:02 glusterbot hgowtham: hchiramm's karma is now 59
09:04 msvbhat ndevos: ping, Can you please review the news of the week? You can do sort of inline commenting there.
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11:37 rafi Who is hosting community meeting ?
11:38 rafi hchiramm_afk: kaushal_ : kkeithley  ^
11:38 rafi I have a meeting at 5:30 :(
11:42 rafi ndevos: atinm rastar
11:42 rafi ^
11:59 atinm I will host it
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12:00 hchiramm atinm++ thanks
12:00 glusterbot hchiramm: atinm's karma is now 23
12:01 hchiramm but looks like most of the regular attendees are not available
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12:10 hchiramm tigert++ thanks !
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12:11 Manikandan raghu++
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12:21 Manikandan ashiq++ thanks :)
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13:06 hchiramm_ atinm++
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13:15 kkeithley thanks atinm++ for chairing the meeting
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13:15 hchiramm_ kkeithley++ thanks !!
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13:26 jcsp_ hi folks, asked tried this on #gluster yesterday with no luck, so trying here today...
13:26 jcsp_ does the gluster fuse client disable the kernel pagecache?  With the ceph client we're finding that userspace can get stale data if reading from a cached file, as we have no way of telling fuse if we have lost locks on a file.
13:27 jcsp_ so the obvious solution is just to turn off the page cache for our fuse client, but it seems worth asking how gluster deals with the same issue
13:27 jcsp_ (greetings from #ceph-devel, howdy, hello, etc :-))
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14:10 rafi dlambrig_++
14:10 glusterbot rafi: dlambrig_'s karma is now 1
14:10 ndevos jcsp_: I'm pretty sure we dont disable page cache for fuse
14:11 ndevos jcsp_: I'm not sure how locks cen get lost? do you mean like leases/delegations and their recalls?
14:11 ndevos *can
14:13 ndevos jcsp_: I'm leaving for the day in a few minutes, if you could send an email to gluster-devel@gluster.org someone should be able to reply
14:13 ndevos most devs (and currently I too) are in India, it's almost 20:00 here, almost everyone would be offline now
14:19 jcsp_ ndevos: ok, thanks.  Our guess was that you probably don't disable it, and the resulting semantics are probably sufficient for e.g. NFS.  It's in the stricter case of multiple clients opening a file that the issues arise
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17:15 ndevos jcsp_: yes, glusterfs is very much like NFS in that case
17:16 ndevos jcsp_: stricter semantics will become possible with nfs-ganesha and delegations, I have not thought about how to do (if possible?) in fuse yet
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20:58 craigcabrey does glfs_set_xlator_option () need to be called before glfs_init ()? wasn't clear from the docs if that was the case
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23:00 jatone anyone know if the file create network load mentioned in this http://blog.gluster.org/category/performance/ has been fixed (it was over a year ago so I assume so, jsut looking for confirmation)
23:01 jatone relevant part of the blog post:  Looking at wireshark traces, we observed many LOOKUP calls sent to  each of the nodes for every file create operation. As the number of  nodes increased, so did the number of LOOKUPs. It turns out that the  gluster client was doing a multicast lookup on every node on creates. It  does this to confirm the file does not already exist.
23:01 jatone only asking before I dive into the code itself to find the answer =)
23:41 cholcombe jatone, i'm not sure :-/
23:42 cholcombe craigcabrey, i think glfs_init comes first
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