Hi Laszlo, I am running a debian10 with syslog-ng 3.32. If using the default syslog-ng configuration for Debian 10, the error is reproducible. It happened to me when stimulating the syslog-ng using logger command. Sorry for the delay in reply. Thanks and regards, Alex On Wed, Aug 18, 2021 at 9:39 AM Alexandre Santos <ASantos@infinera.com> wrote:
*From:* syslog-ng <syslog-ng-bounces@lists.balabit.hu> * On Behalf Of *Laszlo Szemere (lszemere) *Sent:* 17 de agosto de 2021 15:20 *To:* Syslog-ng users' and developers' mailing list < syslog-ng@lists.balabit.hu> *Subject:* Re: [syslog-ng] Resource temporarily unavailable while reading from system.journal
Hello Alex,
sorry for not responding sooner.
From my experience, the most common reasons behind this error messages are:
1) Syslog-ng do not have the proper permissions to read /dev/log
2) /dev/log is already opened by an another process. (Maybe Syslog-ng started multiple times.)
If the problem still exists, please share the details of your platform and I will try to reproduce your problem with the attached configuration.
Best regards,
Laszlo
------------------------------
*From:* syslog-ng <syslog-ng-bounces@lists.balabit.hu> on behalf of Alexandre Santos <alexandre.rosas.santos@gmail.com> *Sent:* Thursday, August 12, 2021 15:40 *To:* Syslog-ng users' and developers' mailing list < syslog-ng@lists.balabit.hu> *Subject:* [syslog-ng] Resource temporarily unavailable while reading from system.journal
Hi,
I am seeing the following strace log when running the syslog-ng 3.32 with the configuration in the attachment:
root@myhost:/home/shared# sudo strace -f -yyy -s 256 -e trace=read -p 2539 strace: Process 2539 attached with 4 threads [pid 2539] read(48<anon_inode:[timerfd]>, "\1\0\0\0\0\0\0\0", 8) = 8 [pid 2539] read(11<anon_inode:inotify>, "\2\0\0\0\2\0\0\0\0\0\0\0\20\0\0\0system.journal\0\0", 272) = 32 [pid 2539] read(11<anon_inode:inotify>, 0x7ffda019f930, 272) = -1 EAGAIN (Resource temporarily unavailable) [pid 2539] read(11<anon_inode:inotify>, "\2\0\0\0\2\0\0\0\0\0\0\0\20\0\0\0system.journal\0\0", 272) = 32 [pid 2539] read(11<anon_inode:inotify>, 0x7ffda019f930, 272) = -1 EAGAIN (Resource temporarily unavailable) [pid 2539] read(11<anon_inode:inotify>, "\2\0\0\0\2\0\0\0\0\0\0\0\20\0\0\0system.journal\0\0", 272) = 32 [pid 2539] read(11<anon_inode:inotify>, 0x7ffda019f930, 272) = -1 EAGAIN (Resource temporarily unavailable) [pid 2539] read(11<anon_inode:inotify>, "\2\0\0\0\2\0\0\0\0\0\0\0\20\0\0\0system.journal\0\0", 272) = 32 [pid 2539] read(11<anon_inode:inotify>, 0x7ffda019f930, 272) = -1 EAGAIN (Resource temporarily unavailable) [pid 2539] read(11<anon_inode:inotify>, "\2\0\0\0\2\0\0\0\0\0\0\0\20\0\0\0system.journal\0\0", 272) = 32 [pid 2539] read(11<anon_inode:inotify>, 0x7ffda019f930, 272) = -1 EAGAIN (Resource temporarily unavailable) [pid 2539] read(11<anon_inode:inotify>, "\2\0\0\0\2\0\0\0\0\0\0\0\20\0\0\0system.journal\0\0", 272) = 32 [pid 2539] read(11<anon_inode:inotify>, 0x7ffda019f930, 272) = -1 EAGAIN (Resource temporarily unavailable) [pid 2539] read(11<anon_inode:inotify>, "\2\0\0\0\2\0\0\0\0\0\0\0\20\0\0\0system.journal\0\0", 272) = 32 [pid 2539] read(11<anon_inode:inotify>, 0x7ffda019f930, 272) = -1 EAGAIN (Resource temporarily unavailable) [pid 2539] read(11<anon_inode:inotify>, "\2\0\0\0\2\0\0\0\0\0\0\0\20\0\0\0system.journal\0\0", 272) = 32 [pid 2539] read(11<anon_inode:inotify>, 0x7ffda019f930, 272) = -1 EAGAIN (Resource temporarily unavailable) [pid 2539] read(11<anon_inode:inotify>, "\2\0\0\0\2\0\0\0\0\0\0\0\20\0\0\0system.journal\0\0", 272) = 32 [pid 2539] read(11<anon_inode:inotify>, 0x7ffda019f930, 272) = -1 EAGAIN (Resource temporarily unavailable) ^Cstrace: Process 2539 detached strace: Process 11623 detached strace: Process 20518 detached strace: Process 22517 detached
This normal behaviour?
Thanks & Regards,
Alex