Hello,
gluster performance are not good with large number of small files. Recent version do a better job with them, but not yet what I would enjoy.
As you are starting at gluster having an existing architecture, you should first setup a lab to learn about it Else you will learn the hard way.
Don't play with turning off nodes, as you may create more issues than solve.
just my 2cents
2015-07-24 19:34 GMT+02:00 John Kennedy <skebi69@xxxxxxxxx>:
I am new to Gluster and have not found anything useful from my friend Google. I have not dealt with physical hardware in a few years (my last few jobs have been VM's and AWS based)I inherited a 4 node gluster configuration. There are 2 bricks, one is 9TB the other 11TB.The 11TB brick has a HUGE number of small files taking up only 1.3TB of the brick. For some reason, even a simple ls command can take hours to even start listing files. I removed a node by shutting down gluster on that node. The change in performance is dramatic. If I try and do ls on the 11TB brick on the downed node, I am still getting the slow response. I have narrowed the issue down to this one node as a result.When I start gluster on the bad node, glusterfsd hits over 1000%CPU use (The server has dual 8 core CPU's) and the load will jump to 25-30 within 5 minutes. As such, I think this is a gluster issue and not a hardware issue. I am trying to not reinstall gluster yet.Is there something I am missing in my checks or will I need to reinstall gluster on that node?Thanks,John
John Kennedy (_8(|)Sometimes it happens, sometimes it doesn't - Pedro CatacoraJust because nobody disagrees with you doesn't mean you are correct.Anatidaephobia is the fear that somehow, somewhere a duck is watching you - urbandictionary.comThe Dunning-Kruger effect occurs when incompetent people not only fail to realize their incompetence, but consider themselves much more competent than everyone else. Basically - they're too stupid to know that they're stupid.
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