You're absolutely right Mitch. The weekend was threatening with being a
real mess :)
Will apply that asap. Sorry for so-quick-posting about it.
Thanks!
Rubén.
El 2018-01-26 20:54, Mitch (BitBlock) escribió:
> Hi Ruben if you scroll back just through the last 24 hours, this has been
> resolved...
>
> Likely already, but if not, you can disable this signature:
>
> echo 'Vbs.Downloader.Generic-6431223-0' >>/var/lib/clamav/local.ign2
> chown clamav:clamav /var/lib/clamav/local.ign2
>
> Then restart your clamd
> The issue will likely be fixed in the next signature update - but I haven't
> read a message that it has been yet.
> You could try simply updating signatures first depending on your tolerace for
> a recurrence.
> Cheers,
> Mitch
>
> -Original Message-
> From: clamav-users [mailto:clamav-users-boun...@lists.clamav.net] On Behalf
> Of Ruben Cardenal
> Sent: January-26-18 11:35 AM
> To: clamav-users@lists.clamav.net
> Subject: [clamav-users] deleted files eating up file descriptors
>
> Hi,
>
> Today, all of a sudden, in 5 of our email servers (to be more precise, mx
> processing servers), we started to get qmail-scanner errors (the feared "qq
> temporary error" message). After some digging, we found out the reason was
> clamav (0-99.2) was dead. Erros like:
>
> /var/spool/qscan/tmp/mx3151697687779817876/1516976877.17928-1.mx3: Can't open
> file or directory ERROR
> /var/spool/qscan/tmp/mx3151697687779817876/image001.jpg: Can't open file or
> directory ERROR
> /var/spool/qscan/tmp/mx3151697687779817876/image002.jpg: Can't open file or
> directory ERROR
> /var/spool/qscan/tmp/mx3151697687779817876/image003.jpg: Can't open file or
> directory ERROR
>
> ERROR: accept() failed:
> ERROR: accept() failed:
> ERROR: accept() failed:
> ERROR: accept() failed:
> ERROR: accept() failed:
> ERROR: accept() failed:
> ERROR: accept() failed:
>
> and more apparently fs/resource related errors. No disk space problems, no
> permission problems, no inode problems. Plenty of free RAM. CPU usage and
> load averages very low. Upgrading to the recent 0-99.3 didn't help.
>
> Finally, strace found out what's happening:
>
> [pid 10797]
> open("/tmp/clamav-43d08860615a4d14dae3046aee3e5e98.tmp/clamav-781e98988f119c6433f2328d7224825c.tmp",
> O_RDWR|O_CREAT|O_EXCL|O_TRUNC, 0700) = -1 EMFILE (Too many open files)
>
> [pid 10797] write(2, "LibClamAV Warning: fileblobScan, fullname == NULL\n",
> 50) = 50 [pid 10797] write(2, "LibClamAV Error: fileblobDestroy: textportion
> not
> saved: report to http://bugs.clamav.net\n;, 90) = 90
>
> which is weird, because the system is not even near to be so heavily loaded
> (by workload) to get clamav to eat up the default 1024 descriptors. So
> looking at /proc/PID/fd ...
>
> lrwx-- 1 root root 64 Jan 26 19:20 68 ->
> /tmp/clamav-2b88cf1b1e55ab0d8cb045ab908e3273.tmp (deleted)
> lrwx-- 1 root root 64 Jan 26 19:20 680 ->
> /tmp/clamav-7564115561d870008cbd6783ea304e96.tmp (deleted)
> lrwx-- 1 root root 64 Jan 26 19:20 681 ->
> /tmp/clamav-a3be54920dff8420d86dfffcf6df41ea.tmp (deleted)
> lrwx-- 1 root root 64 Jan 26 19:20 682 ->
> /tmp/clamav-270dd0e754c54dacab1bcd28a90c38e3.tmp (deleted)
> lrwx-- 1 root root 64 Jan 26 19:20 683 ->
> /tmp/clamav-7405a8caced08e2020809f2621cd16a2.tmp (deleted)
> lrwx-- 1 root root 64 Jan 26 19:20 684 ->
> /tmp/clamav-b41105e2aeb1da3cef054e6938f5e26a.tmp (deleted)
> lrwx-- 1 root root 64 Jan 26 19:20 685 ->
> /tmp/clamav-d8735b7980637a5866dd7a2ee274a272.tmp (deleted)
> lrwx-- 1 root root 64 Jan 26 19:20 686 ->
> /tmp/clamav-9395651f00ea6530a58bdb8480d93223.tmp (deleted)
> lrwx-- 1 root root 64 Jan 26 19:20 687 ->
> /tmp/clamav-01c6f26331d41a92e5454203d7ee3229.tmp (deleted)
> lrwx-- 1 root root 64 Jan 26 19:20 688 ->
> /tmp/clamav-d6d3b8d9da8982ae0f724b2920d37c47.tmp (deleted)
> lrwx-- 1 root root 64 Jan 26 19:20 689 ->
> /tmp/clamav-b5328deea4127b4c5f07a9d0a6f095c0.tmp (deleted)
>
> Those servers have been working with the same configuration for years,
> without this happening until now.
>
> Of course we could ulimit to a high value the nofiles value, but that would
> just postpone the daemon's dead.
>
> Any help would be greatly appreciated.
>
> Thanks,
>
> Rubén.
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