UnRAID server occasionally unresponsive (web GUI long load time, network share timeout)


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Hi, I first set my server up about a month and a half ago, and I've been slowly migrating files over, configuring services, etc.  

 

It is an HP ML10v2 server with 8GB RAM, i3-4150 CPU, 1x 512GB SSD and 8x 5TB Seagate 2.5" drives.  One thing to note is that the 2.5" drives seem to make a clicking sound whenever they spin up or spin down.  I was initially concerned there was a disk issue, but I individually spun each one up and down manually, and each made the same click.  So even though I hear clicking during normal disk activity, which I hate to hear coming from a hard drive, I do think the drives are healthy.

 

I've installed several docker containers, and I generally only have these active: 

  • activ/arch-flexget      
  • linuxserver/transmission
  • linuxserver/plex        

 

In the past week or so, it has started behaving erratically some times.  I'll be switching between pages in the web UI, and it will just stop loading.  Accessing network shares over AFP or SMB will get slow, erratic, or time out.  I can SSH in, and according to 'top' there is not any one process using more than 1% CPU.

 

I've stopped the FlexGet docker, and so far the timeouts seem to have gone away.  But they previously would come and go at random, so I can't be sure.  FlexGet, when active, is scheduled to pull RSS feeds once per hour to extract torrent files.  It seems to complete that pretty quickly without using much CPU, then go idle again.  So I can't think of a reason that having this container running would cause the whole system to slow down.

 

Any ideas?

 

I've attached a diagnostic, which I took just a little while ago when the web UI became unresponsive.  This was before disabling FlexGet.

 

tower-diagnostics-20170402-0001.zip

Edited by cowboytronic
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