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> Slow server after some days
PaulVM
 Posted: Mar 22 2012, 11:34 PM
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I installed my first SL 6.x box as VM (KVM under Proxmox)
Install Ok, configuration Ok (using 32 bit minimal + virtualmin + few pkgs that I usually install on CentOS/RH).
The box works fine, but after some days of normal activity become really slow (worse of a trashed server that is working on swap memory, but this isn't the current problem). I reset the VM and this temporary "solve" the problem.
Any idea on what can be the source of the problem?

Thanks, P.

N.B.: Initial install was SL 6.1. Updated to 6.2, all updates. No differences
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redman
 Posted: Apr 1 2012, 04:53 PM
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Have you checked the running processes to see if there is something abnormal going on?


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PaulVM
 Posted: Apr 2 2012, 11:35 AM
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QUOTE (redman @ Apr 1 2012, 05:53 PM)
Have you checked the running processes to see if there is something abnormal going on?


Being a production server I usually rebooted it ASAP to have services restored. Yesterday I tried to simply restart network and this solve the problem. I haven't noticied big amount of processes or strange things. Only that the network is very slow and if I ping outside there is an high number of packet loss (another nic that connect to a NFS server seems not have the problem).

Any hints on what can be checked?

Thanks, P.
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toracat
 Posted: Apr 2 2012, 04:09 PM
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The problem you are seeing might share the same cause as this one in the CentOS bug tracker:

http://bugs.centos.org/view.php?id=5526

Try a workaround suggested in there; use of the e1000 driver instead of virtio. Also, you may not have to reboot the guest, ifdown/ifup might help, etc.


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PaulVM
 Posted: Apr 4 2012, 10:44 AM
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Thanks for the hint.
My external nic was a pcnet (Host is Proxmox/Debian and Client is a 32 bit SL instead of 64bit). Changed to e1000.
Hope this solve. ;-)
If you don't read me again in the next days ... ;-)

Thanks, P.

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PaulVM
 Posted: Apr 30 2012, 02:20 PM
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QUOTE (PaulVM @ Apr 4 2012, 11:44 AM)
Thanks for the hint.
My external nic was a pcnet (Host is Proxmox/Debian and Client is a 32 bit SL instead of 64bit). Changed to e1000.
Hope this solve. ;-)
If you don't read me again in the next days ... ;-)

Thanks, P.



After 3 weeks I can say that changing the NIC driver solved the problem.

Thanks again, P.



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redman
 Posted: Apr 30 2012, 05:36 PM
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Thanks for reporting back that it worked wink.gif


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What is SL? - Forum Rules - Info on 3rd Party Repos - How to post images - How to post large text / config files

Desktop: ASUS P5QPL-AM, Intel Dual-Core E6500, 4GB DDR2, ASUS GeForce GT 430 1GB, SL6.5 x86_64
Laptop: ASUS X58L, Intel Dual-Core T3200, 3GB DDR2, Intel GMA X3100, RHEL7.0 x86_64
Test box: Intel S5000PSL, 2x Intel Xeon E5310, 8GB ECC DDR2 FB-DIMM, ASUS GeForce GT 220 1GB, SL7 BETA x86_64
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