Re: [CentOS] everything seems to hang, but system is idle?

2010-04-12 Thread kalinix
On Sun, 2010-04-11 at 14:49 +0200, Rudi Ahlers wrote: [r...@intranet ~]# yum install strace -y Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * local-addons: 192.168.1.250 * local-base: 192.168.1.250 * local-extras: 192.168.1.250 * local-updates:

Re: [CentOS] everything seems to hang, but system is idle?

2010-04-12 Thread JohnS
On Sun, 2010-04-11 at 15:48 +0200, Rudi Ahlers wrote: Yes, I think it could be a problematic iscsi config. Now that I think of it, the server wasn't rebooted in about 2 or 3 months and I did some iscsi testing a while ago, but with a recent power outage it could have enabled / a faulty

Re: [CentOS] everything seems to hang, but system is idle? [SOLVED]

2010-04-12 Thread Rudi Ahlers
On Mon, Apr 12, 2010 at 1:50 PM, JohnS jse...@gmail.com wrote: On Sun, 2010-04-11 at 15:48 +0200, Rudi Ahlers wrote: Yes, I think it could be a problematic iscsi config. Now that I think of it, the server wasn't rebooted in about 2 or 3 months and I did some iscsi testing a while ago, but

Re: [CentOS] everything seems to hang, but system is idle? [SOLVED]

2010-04-12 Thread Ross Walker
On Apr 12, 2010, at 10:25 AM, Rudi Ahlers rudiahl...@gmail.com wrote: On Mon, Apr 12, 2010 at 1:50 PM, JohnS jse...@gmail.com wrote: On Sun, 2010-04-11 at 15:48 +0200, Rudi Ahlers wrote: Yes, I think it could be a problematic iscsi config. Now that I think of it, the server wasn't

[CentOS] everything seems to hang, but system is idle?

2010-04-11 Thread Rudi Ahlers
Hi All, My one server recently started acting very weird. At fist I couldn't import any images with cobbler as rsync crashes the whole time. I was told to ask on the cobbler list (maybe it's not supported here?) but I left it at that (subscribed to far too many lists already). Yesteday I wanted

Re: [CentOS] everything seems to hang, but system is idle?

2010-04-11 Thread JohnS
On Sun, 2010-04-11 at 12:58 +0200, Rudi Ahlers wrote: At the same time I can open a new SSH session and do whatevery I like. But it seems that running a command which takes time to complete hangs. --- Try killing off those rsyncs and try it again. You need to provide some other type of error

Re: [CentOS] everything seems to hang, but system is idle?

2010-04-11 Thread Rudi Ahlers
On Sun, Apr 11, 2010 at 2:04 PM, JohnS jse...@gmail.com wrote: On Sun, 2010-04-11 at 12:58 +0200, Rudi Ahlers wrote: At the same time I can open a new SSH session and do whatevery I like. But it seems that running a command which takes time to complete hangs. --- Try killing off those

Re: [CentOS] everything seems to hang, but system is idle?

2010-04-11 Thread Rudi Ahlers
On Sun, Apr 11, 2010 at 2:25 PM, Rudi Ahlers rudiahl...@gmail.com wrote: On Sun, Apr 11, 2010 at 2:04 PM, JohnS jse...@gmail.com wrote: On Sun, 2010-04-11 at 12:58 +0200, Rudi Ahlers wrote: At the same time I can open a new SSH session and do whatevery I like. But it seems that running a

Re: [CentOS] everything seems to hang, but system is idle?

2010-04-11 Thread Geoff Galitz
Check dmesg. The kernel may be reporting disk or filesystem IO problems that are not going to syslog. -geoff - Geoff Galitz Blankenheim NRW, Germany http://www.galitz.org/ http://german-way.com/blog/ -Original Message- From:

Re: [CentOS] everything seems to hang, but system is idle?

2010-04-11 Thread Rudi Ahlers
On Sun, Apr 11, 2010 at 3:00 PM, Geoff Galitz ge...@galitz.org wrote: Check dmesg.  The kernel may be reporting disk or filesystem IO problems that are not going to syslog. -geoff - Thanx Geoff, Already checked that, without any decent lead either:

Re: [CentOS] everything seems to hang, but system is idle?

2010-04-11 Thread Kwan Lowe
On Sun, Apr 11, 2010 at 6:58 AM, Rudi Ahlers rudiahl...@gmail.com wrote: [snip] At the same time I can open a new SSH session and do whatevery I like. But it seems that running a command which takes time to complete hangs. Is the server mounting any remote filesystems?

Re: [CentOS] everything seems to hang, but system is idle?

2010-04-11 Thread Geoff Galitz
Thanx Geoff, Already checked that, without any decent lead either: Have you tried iostat, vmstat or sar to see if there is unusual activity? Were there any changes to the kernel lately (such as an update or a new module)? Or perhaps an NFS/CIFS mount gone wonky causing blocking?

Re: [CentOS] everything seems to hang, but system is idle?

2010-04-11 Thread Rudi Ahlers
On Sun, Apr 11, 2010 at 3:33 PM, Kwan Lowe kwan.l...@gmail.com wrote: On Sun, Apr 11, 2010 at 6:58 AM, Rudi Ahlers rudiahl...@gmail.com wrote: [snip] At the same time I can open a new SSH session and do whatevery I like. But it seems that running a command which takes time to complete hangs.

Re: [CentOS] everything seems to hang, but system is idle?

2010-04-11 Thread Rudi Ahlers
On Sun, Apr 11, 2010 at 3:32 PM, Geoff Galitz ge...@galitz.org wrote: Thanx Geoff, Already checked that, without any decent lead either: Have you tried iostat, vmstat or sar to see if there is unusual activity? Were there any changes to the kernel lately (such as an update or a new