Perl 6 - the future is here, just unevenly distributed

IRC log for #gluster, 2017-02-11

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All times shown according to UTC.

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17:13 nh2 JoeJulian: so I wrote my parallel copy program that copies 1000 files in parallel, but somehow filling my gluster volume is still extremely slow. I'm copying an 80 MB /usr/bin with 800 binaries to gluster, and it still takes 18 seconds (cp takes 19 seconds), which is really really bad
17:14 nh2 I'm running on gigabit ethernet, and network is at 2% utilisation, CPU usage also doesn't seem to be peaked; my 2 nodes in mirror seem basically idle
17:14 nh2 I have the suspicion that Gluster somehow serialises the IO even though I issue it in parallel
17:16 nh2 which might be the result of very bad defaults for small files in a single dir, but I've already tried to tune it to no avail:
17:16 nh2 performance.flush-behind is on (default), cluster.lookup-unhashed is auto, server/client.event-threads are 32 (can't set it higher; default is 2), server.outstanding-rpc-limit is 640 (default is 64)
17:16 nh2 is there any setting that would prevent gluster from just working down my 1000 writes fully in parallel?
17:18 nh2 also tried the native NFS mount, but I can forget that, performance is 4x worse
17:19 nh2 I need it 100x faster basically
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18:32 nh2 also, how comes there's no documentation for options like event-threads? I can find some in Red Hat Storage docs, and in some gluster changelogs, but where are the real gluster docs?
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22:48 shutupsquare Hey can I have geo replication, without a gluster replica, so just a master and a slave with no other nodes?
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23:00 shutupsquare Because, I seem to not be able to create a Gluster Volume with just one node, to then setup geo replication, I have to setup a volume with at least two nodes then a third for Geo Rep, is that right?
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