Camelia, the Perl 6 bug

IRC log for #gluster, 2013-11-02

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All times shown according to UTC.

Time Nick Message
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00:46 kodiakFiresmith Anyone have a favorite GBE switch for home use?  8 ports preferable.  I'm going to try to separate my gluster traffic onto a separate network.
01:10 kodiakFiresmith I'm looking at this one currently:  http://www.amazon.com/TP-LINK-TL-SG3210-10​-port-Pure-Gigabit-1000Mbps/dp/B006B7R3YC
01:10 glusterbot <http://goo.gl/NnpUI3> (at www.amazon.com)
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01:59 JoeJulian kodiakFiresmith: What do you have now?
02:00 elyograg kodiakFiresmith: I'm a Cisco snob. :)
02:02 elyograg at home I have a Cisco 3550-12G.  It's not doing any layer 3 functionality - the 2600 router and pix firewall do that. :)
02:02 JoeJulian Mainly look at backplane. The one you referenced has a 20Gbps backplane. That will more than handle the 8 1Gbps ports it has.
02:03 JoeJulian For performance, though, you're looking at latency. None of the commodity switches are likely to publish that.
02:04 * JoeJulian has an 1841 for his internet gateway at home, but just a dumb 24port Trendnet.
02:05 JoeJulian I want to get a SDN capable switch for home, just to play with.
02:06 elyograg nice.  It's a much newer router than my 2621XM, probably more capable.  It's doing PPPoE from my DSL modem.
02:21 elyograg i;m having to look that up, never heard of SDN before.  having a hard time figuring out what it actually means. :)
02:22 dbruhn it's the new buzz word for software controlled switching
02:22 dbruhn similar to vlan type tech
02:22 dbruhn except for way more versatile and advanced
02:22 JoeJulian "Software Defined Networking", Openflow
02:23 dbruhn it's layer awesome
02:28 elyograg i hate marketing materials.  Can't tell what SDN/Openflow actually means in concrete terms.
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02:31 elyograg i'm not going to figure it out tonight, sitting in an ER on my laptop.  My wife is having some severe neck pain.  the doc doesn't think it's meningitis, which is good.
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04:15 JoeJulian elyograg: Sorry to hear about your wife. I saw http://mininet.org/ demonstrated recently and it looked like an excellent platform to create virtual network devices and experiment with SDN.
04:15 glusterbot Title: Mininet: An Instant Virtual Network on your Laptop (or other PC) - Mininet (at mininet.org)
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08:08 atul hi
08:08 glusterbot atul: Despite the fact that friendly greetings are nice, please ask your question. Carefully identify your problem in such a way that when a volunteer has a few minutes, they can offer you a potential solution. These are volunteers, so be patient. Answers may come in a few minutes, or may take hours. If you're still in the channel, someone will eventually offer an answer.
08:09 atul Gluster deployment with no single point of failure concept
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09:07 atul deployment
09:08 atul can we achive  no single point of failure with gluster
09:37 atul heloo
09:45 samppah atul: yes that's possible.. could you tell more about the system you are setting up?
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10:53 atul no we don't have system setup right now, but we are planning to buy H/W to meet the requirment
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13:26 glusterbot New news from newglusterbugs: [Bug 1025955] 'stime' xattr is not the minimum of all distribute subvolumes <http://goo.gl/wYuneN> || [Bug 1025951] slave's timestamp mark attr should be '*.stime' <http://goo.gl/dNi2h1> || [Bug 1025952] hybrid crawl does not sync symlinks (and error's out) <http://goo.gl/xh2ErI>
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14:38 kodiakFiresmith Thanks for the responses about switch options for the home network.  Honestly everything at home is Trendnet w/ DD-WRT firmware for the routing parts.  With the added complexity my home lab will be getting now that they want me doing Openstack at work I figured it's time to look at better options.  I might take a chance on that 20Gbps one I posted then.
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14:56 glusterbot New news from newglusterbugs: [Bug 1024472] optimize geo-replication changelog processing <http://goo.gl/E3yC49> || [Bug 1025966] RFE: use tar+ssh as an option for data synchronization <http://goo.gl/zBfBmG> || [Bug 1024465] Dist-geo-rep: Crawling + processing for 14 million pre-existing files take very long time <http://goo.gl/BxNBkc> || [Bug 1024467] Dist-geo-rep : Change in meta data of the files on master doesn't get
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20:36 mattapperson Before I spend a bunch of time trying stuff out... Gluster allows you to add extra servers and pricks to a volume "hot" right... without remounting or taking everything offline
20:38 mattapperson Before I spend a bunch of time trying stuff out... Gluster allows you to add extra servers and bricks to a volume "hot" right... without remounting or taking everything offline
20:38 Remco Yes
20:39 Remco We also have a bot here that is very stupid
20:39 Remco s/stupid/smart
20:39 Remco Oh, needs a closing / ?
20:39 Remco Stupid it is then :P
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20:39 mattapperson heh
20:40 Remco s/stupid/smart/
20:40 glusterbot What Remco meant to say was: We also have a bot here that is very smart
20:40 Remco ;)
20:40 mattapperson @Remco and do you need to have replication?
20:40 mattapperson all the instructions say you must have 2 servers min
20:40 Remco For gluster to be useful, 2 servers is the minimum
20:41 mattapperson but that seems to be for replication... something I dont need as all my drives are already Raid 10
20:41 Remco Otherwise a simple share/NFS/etc. works fine
20:41 Remco You can do distribution too
20:41 Remco Or a combination of that with replication
20:41 mattapperson Remco: well yea :) but we want to start out with a single server but know we will need to scale up
20:41 Remco A replicated setup is usually how it starts
20:41 mattapperson no need to pay for what is not yet needed though
20:42 Remco I guess you could start gluster with one server
20:43 Remco But testing should be done with multiple, since that's where the 'complex' stuff is
20:43 mattapperson Remco: gotcha
20:44 mattapperson now with speed using files around 2-3mb being key... any recommended configs?
20:45 Remco It depends on everything from hardware to what kind of files you'll be storing
20:45 mattapperson Remco: mostly images and media
20:46 Remco Access patterns are very important too
20:46 mattapperson Remco: We are evaluating it for a PaaS for hosting nodejs apps
20:46 mattapperson so that is a little up in the air
20:47 Remco File access is quite expensive in gluster, so it works better with large files
20:47 mattapperson I hear mounting via NFS improves that by a alot
20:47 Remco Yes, but it has other issues
20:48 Remco Like no automatic failover
20:48 mattapperson ah
20:48 Remco You really need to test and ask about what you run into
20:48 mattapperson Remco: Fair enough
20:49 mattapperson thanks for your help
20:49 Remco (also ask when there are more people active, probably during the week)
20:49 mattapperson kk
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21:15 purpleidea mattapperson: if you just use RAID10 for your "redundancy", and no gluster replication, this could be a big problem because:
21:15 purpleidea 1) as your storage pool grows, you'll have a greater chance that one down server takes out the whole cluster
21:16 purpleidea 2) ignoring a few exceptions, it's not possible to change the replication count (think "copies == N") without creating a new pool from scratch.
21:16 purpleidea so usually, you pick a value of N (always 2 or 3 usually) and then you stick with it.
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