similar to: busy loop in libvirtd (cpu usage 100%)

Hello everybody! We have a cluster of servers managed by VMmanager 5 KVM (by ispsystem). A typical node: # cat /etc/redhat-release CentOS Linux release 7.3.1611 (Core) # uname -r 3.10.0-693.11.6.el7.x86_64 # rpm -qa |grep libvirt libvirt-daemon-driver-qemu-3.7.0-1.el7.centos.x86_64 libvirt-daemon-driver-storage-disk-3.7.0-1.el7.centos.x86_64 libvirt-3.7.0-1.el7.centos.x86_64

All, [version: dovecot-0.99.11-4.EL4.src.rpm] We recently experienced an issue that prevented all new IMAP logins from occurring. Although it appears that it was due to running out of available system file descriptors, I'm still not sure what the true root cause was as I can't replicate the same error in our test environment. The system file descriptor max was set at (per `cat

Hi all, I have a dovecot installation which very suddenly decided to slow to a crawl yesterday after being totally fine for months. IMAP is fine, but POP3 is very painful to use, and frequently times out. here's my config: # 1.0.7: /etc/dovecot.conf log_path: /var/log/dovecot_errors info_log_path: /var/log/dovecot_informational ssl_ca_file: /etc/postfix/ssl/cacert.pem ssl_cert_file:

Ján Tomko wrote 2018-01-18 14:27: > On Thu, Jan 18, 2018 at 11:30:16AM +0700, Artem Likhachev wrote: >> # strace -p 5786 >> read(53, "\0\0\0\34", 4) = 4 >> read(53, "keep\0\0\0\1\0\0\0\2\0\0\0\2\0\0\0\0\0\0\0\0", 24) = 24 >> poll([{fd=5, events=POLLIN}, {fd=7, events=POLLIN}, {fd=12, >> events=POLLIN}, {fd=13, events=POLLIN},

Hi I have upgraded from samba 3.6.19 to samba 4.0.13 on Debian Wheezy 64-bit with Samba 4.0.13 from wheezy-backports. I use winbind to authenticate against a two-server AD domain on Server 2012 functional level and forced LDAPS. After upgrading from 3.6.19 to 4.0.13 everything still works for me as usual. That is samba shares authentication, all things relying on the keytab, SSO logins with SSH

On Thu, Jan 18, 2018 at 11:30:16AM +0700, Artem Likhachev wrote: >Hello everybody! > >We have a cluster of servers managed by VMmanager 5 KVM (by ispsystem). > >A typical node: > ># cat /etc/redhat-release >CentOS Linux release 7.3.1611 (Core) ># uname -r >3.10.0-693.11.6.el7.x86_64 > ># rpm -qa |grep libvirt

select() has a maximum value for the FDs it can monitor, and since the libguestfs library can be used in other applications, this limit may be hit by users in case lots of FDs are opened. As solution, switch to poll(): it has a slightly better interface to check what changed and for which FD, and it does not have a limit in the value of the FDs monitored. poll() is supported on the platforms we

Make nbd_poll slightly more like poll(), allowing a user to detect timeouts by returning 0 on timeout and 1 when we made progress. It turns out that none of our internal uses ever expect a timeout (we only call nbd_internal_poll with timeout==-1 because we expect a reply from the server), but the public function might as well be nicer. Also handle POLLERR (server closed its read end, so our

We use Dovecot on a cluster (10'000 domains, 30'000 account) without any problem with pop/imap. We use Dovecot 1.0 RC10 Now we use virtual transport from postfix for mail delivery. We need the Dovecot LDA for sieve support. We test this solution on some domains with success. But if we change the configuration of all our domains, we have a lots of bounce with this error in postfix

it's verry slow i saw in the archives something about strace and will include it below please help: my dovecot is crawling when downloading through pop here is my last trace file contents :18:04.657706 poll([{fd=10, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=15, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=13, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=17,

Hello Timo and others.. 14:09 mail:~# dovecot --version 1.0.rc31 Install prefix ...................... : /usr/local File offsets ........................ : 64bit I/O loop method ..................... : poll File change notification method ..... : inotify Building with SSL support ........... : yes (OpenSSL) Building with IPv6 support .......... : yes Building with

Hi, I installed Dovecot on FreeBSD 4-STABLE machine and have a problem. MTA is postfix delivering to ~/Maildir, runs perfectly. Dovecot is configured to use plaintext auth, config file is at the end of this mail. When trying to get mail via IMAP, I'm getting the following errors: /var/log/dovecot.log > Aug 24 12:00:35 Info: Dovecot starting up > Aug 24 12:00:51 Info: Login: goshik

On Wednesday, 26 February 2020 15:08:24 CET Daniel P. Berrangé wrote: > On Wed, Feb 26, 2020 at 02:39:04PM +0100, Pino Toscano wrote: > > select() has a maximum value for the FDs it can monitor, and since > > the libguestfs library can be used in other applications, this limit > > may be hit by users in case lots of FDs are opened. > > > > As solution, switch to

Hi, My laptop runs a local IMAP server so that I'm immune from breaking my mail client, and when playing around with powertop I discovered that Dovecot (in particular imap-login) wakes up every 1000ms and then every 50ms even when no clients are connected. A bit of stracing shows this: gettimeofday({1180875699, 667917}, NULL) = 0 <0.000010> poll([{fd=7,

While working on a new test of what happens when the server goes away while commands are in flight, I managed to hit a race where I hit death from SIGPIPE instead of a clean transition to the DEAD state. I also found myself wanting to use nbd_poll from the test, but with a way to distinguish between the state machine progressing vs. hanging. Eric Blake (2): socket: Avoid SIGPIPE where possible

Hi all, I'm pulling my hair out on this problem and wanted to throw it out there to see if anyone else had run across it. I recently restarted my server. There were some network config issues that caused the interfaces not to come back up, but my colo company got those resolved. However, after restart, my IMAPS server has stopped responding to outside requests. I can successfully access

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, in order to stress my Dovecot test installation a bit, I compiled imaptest10.c. Now and then I see: Logi List Stat Sele Fetc Fet2 Copy Stor Dele Expu Appe Logo 100% 50% 50% 100% 100% 100% 33% 50% 100% 100% 100% 100% 30% 5% 5% 0 0 0 0 0 0 0 0 0 0 0 0 1/

Jason Wang <jasowang at redhat.com> writes: > On 07/22/2013 01:45 PM, Rusty Russell wrote: >> Amit Shah <amit.shah at redhat.com> writes: >>> On (Fri) 19 Jul 2013 [18:17:32], Jason Wang wrote: >>>> On 07/19/2013 03:48 PM, Amit Shah wrote: >>>>> On (Fri) 19 Jul 2013 [15:03:50], Jason Wang wrote: >>>>>> On 07/19/2013 04:16

Jason Wang <jasowang at redhat.com> writes: > On 07/22/2013 01:45 PM, Rusty Russell wrote: >> Amit Shah <amit.shah at redhat.com> writes: >>> On (Fri) 19 Jul 2013 [18:17:32], Jason Wang wrote: >>>> On 07/19/2013 03:48 PM, Amit Shah wrote: >>>>> On (Fri) 19 Jul 2013 [15:03:50], Jason Wang wrote: >>>>>> On 07/19/2013 04:16

http://dovecot.org/releases/dovecot-1.0.rc23.tar.gz http://dovecot.org/releases/dovecot-1.0.rc23.tar.gz.sig Documentation is probably the only important thing left before v1.0. * deliver doesn't ever exit with Dovecot's internal exit codes anymore. All its internal exit codes are changed to EX_TEMPFAIL. * mbox: X-Delivery-ID header is now dropped when saving mails. * mbox: If