Hi! i have a problem with iotop :
root@alien: ~ # iotop Traceback (most recent call last): File "/usr/bin/iotop", line 16, in ? main() File "/usr/lib/python2.4/site-packages/iotop/ui.py", line 567, in main main_loop() File "/usr/lib/python2.4/site-packages/iotop/ui.py", line 557, in <lambda> main_loop = lambda: run_iotop(options) File "/usr/lib/python2.4/site-packages/iotop/ui.py", line 465, in run_iotop return curses.wrapper(run_iotop_window, options) File "/usr/lib64/python2.4/curses/wrapper.py", line 44, in wrapper return func(stdscr, *args, **kwds) File "/usr/lib/python2.4/site-packages/iotop/ui.py", line 457, in run_iotop_window process_list = ProcessList(taskstats_connection, options) File "/usr/lib/python2.4/site-packages/iotop/data.py", line 375, in __init__ self.update_process_counts() File "/usr/lib/python2.4/site-packages/iotop/data.py", line 431, in update_process_counts stats = self.taskstats_connection.get_single_task_stats(thread) File "/usr/lib/python2.4/site-packages/iotop/data.py", line 158, in get_single_task_stats reply = self.connection.recv() File "/usr/lib/python2.4/site-packages/iotop/netlink.py", line 229, in recv raise err OSError: Netlink error: Invalid argument (22)
CentOS release 5.5 (Final)
iotop-0.4.3-4.el5
python-2.4.3-46.el5
anyone have any idea about this problem and how can i debug/fix it? Thanks! Adrian
Dear Adrian,
On Fri, 9 Mar 2012 09:17:59 +0200 Adrian Sevcenco Adrian.Sevcenco@cern.ch wrote:
anyone have any idea about this problem and how can i debug/fix it?
Do you have python-ctypes installed?
Besides iotop does not work for kernels < 2.6.20. You need a patched kernel. The rpm package from http://guichaz.free.fr/iotop/ works also on non standard el5 kernels but shows no more information than iostat.
Further information can be found in https://bugzilla.redhat.com/show_bug.cgi?id=641496 and https://bugzilla.redhat.com/show_bug.cgi?id=557062
Brgds
On 03/09/2012 09:38 AM, Benjamin Hackl wrote:
Dear Adrian,
On Fri, 9 Mar 2012 09:17:59 +0200 Adrian Sevcenco Adrian.Sevcenco@cern.ch wrote:
anyone have any idea about this problem and how can i debug/fix it?
Do you have python-ctypes installed?
Besides iotop does not work for kernels < 2.6.20. You need a patched kernel. The rpm package from http://guichaz.free.fr/iotop/ works also on non standard el5 kernels but shows no more information than iostat.
thats not true. the EL kernels have block dev accounting backported in, use the iotop from EPEL, and use a recent'ish kernel for CentOS-5, and you should be fine.
On 9.3.2012 08:17, Adrian Sevcenco wrote:
Hi! i have a problem with iotop :
root@alien: ~ # iotop Traceback (most recent call last): File "/usr/bin/iotop", line 16, in ? main() File "/usr/lib/python2.4/site-packages/iotop/ui.py", line 567, in main main_loop() File "/usr/lib/python2.4/site-packages/iotop/ui.py", line 557, in <lambda> main_loop = lambda: run_iotop(options) File "/usr/lib/python2.4/site-packages/iotop/ui.py", line 465, in run_iotop return curses.wrapper(run_iotop_window, options) File "/usr/lib64/python2.4/curses/wrapper.py", line 44, in wrapper return func(stdscr, *args, **kwds) File "/usr/lib/python2.4/site-packages/iotop/ui.py", line 457, in run_iotop_window process_list = ProcessList(taskstats_connection, options) File "/usr/lib/python2.4/site-packages/iotop/data.py", line 375, in __init__ self.update_process_counts() File "/usr/lib/python2.4/site-packages/iotop/data.py", line 431, in update_process_counts stats = self.taskstats_connection.get_single_task_stats(thread) File "/usr/lib/python2.4/site-packages/iotop/data.py", line 158, in get_single_task_stats reply = self.connection.recv() File "/usr/lib/python2.4/site-packages/iotop/netlink.py", line 229, in recv raise err OSError: Netlink error: Invalid argument (22)
CentOS release 5.5 (Final)
Your kernel is too old. You need at least 2.6.18-238.el5 (This was the first 5.6 kernel)
iotop-0.4.3-4.el5
python-2.4.3-46.el5
It seems you have a partially updated system. These Packages are from 5.8
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Adrian Sevcenco -
Benjamin Hackl -
Karanbir Singh -
Markus Falb