Hi Jeremy,
This is not hardware problem, I've already checked that. I also ran fsck
today and got no errors.
After some more exploration of how mongodb works, I found that then
listing hangs, one of mongodb thread is in "biowr" state for a long
time. It periodically calls msync(MS_SYNC) accordingly to ktrace out.
If I'll remove msync() calls from mongodb, how often data will be sync
by OS?
--
Andrey Zonov
On 14.12.2011 2:15, Jeremy Chadwick wrote:
On Wed, Dec 14, 2011 at 01:11:19AM +0400, Andrey Zonov wrote:
Have you any ideas what is going on? or how to catch the problem?
Assuming this isn't a file on the root filesystem, try booting the
machine in single-user mode and using "fsck -f" on the filesystem in
question.
Can you verify there's no problems with the disk this file lives on as
well (smartctl -a /dev/disk)? I'm doubting this is the problem, but
thought I'd mention it.
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