Re: No cleaning-up processes?

2017-08-31 Thread Andre Felipe Machado
tarting point. Regards. Andre Felipe Machado Paul van der Vlis wrote .. > Hello, > > I am testing Cyrus Imapd 2.5.10 from Debian stable. What I see is that > the imapd processes become more and more overtime untill they reach the > maxchild value, and then there is a problem. I se

Re: /var/spool/imap on ZFS

2017-08-14 Thread Andre Felipe Machado
Hello, Some suggestions for general guidance: - Avoid deduplication. Maybe use compression at low level or fast algorithm to get dedup effect ALSO. With compression you get dynamic sector size also. - RAIDZn is for space, not for performance. Beware. - RAIDZn is not cheap to expand. -

Re: imap checkpoint and slow access to mailboxes

2016-10-07 Thread Andre Felipe Machado via Info-cyrus
Hello, Are you shure of now having a clean filesystem? Are you shure of having a reliable hardware now? Do you have tested backups at hand? do you use SAN storage or at least some kind of raid or another level of data integrity? Maybe moving data to another hardware/disks (like forensic procedures

Re: Huge performance problems after updating from 2.4 to 2.5.8

2016-07-15 Thread Andre Felipe Machado via Info-cyrus
Hello, Maybe, after such upgrade, squatter metadata indexes were lost and you should run an incremental squatter again on your mailboxes. Even before the scheduled run at events section on /etc/cyrus.conf. Regards. Andre Felipe Hynek Schlawack via Info-cyrus wrote .. > Hello, > > we’ve update

Re: [cyrus 3.0] 20 delayed mailbox deleted limit?

2016-06-10 Thread Andre Felipe Machado via Info-cyrus
Bron Gondwana via Info-cyrus wrote .. > On Fri, Jun 10, 2016, at 09:41, Jason L Tibbitts III wrote: > > > "BG" == Bron Gondwana writes: > > > > BG> Just to be really clear what this is. It's per mailbox name - if > > BG> you create and delete the SAME mailbox more 20 times, it only keeps >

Re: [cyrus 3.0] 20 delayed mailbox deleted limit?

2016-06-09 Thread Andre Felipe Machado via Info-cyrus
Andrew Morgan wrote .. > On Thu, 9 Jun 2016, Andre Felipe Machado via Info-cyrus wrote: > > > Bron Gondwana via Info-cyrus wrote .. > >> On Thu, Jun 9, 2016, at 03:02, Andre Felipe Machado via Info-cyrus wrote: > >>> Hello, > >>> At future release n

Re: [cyrus 3.0] 20 delayed mailbox deleted limit?

2016-06-09 Thread Andre Felipe Machado via Info-cyrus
Bron Gondwana via Info-cyrus wrote .. > On Thu, Jun 9, 2016, at 03:02, Andre Felipe Machado via Info-cyrus wrote: > > Hello, > > At future release notes I read > > "Under delete_mode: delayed, only the 20 most recently deleted mailboxes are > kept for any given nam

[cyrus 3.0] 20 delayed mailbox deleted limit?

2016-06-08 Thread Andre Felipe Machado via Info-cyrus
Hello, At future release notes I read "Under delete_mode: delayed, only the 20 most recently deleted mailboxes are kept for any given name." https://cyrusimap.org/imap/release-notes/3.0/x/3.0.0-beta2.html Is there any configuration parameter to increase this limit? Why this limit is needed? Regard

[cyrus 3.0 ]mupdate on openio or not?

2016-06-07 Thread Andre Felipe Machado via Info-cyrus
Hello, I was trying to understand code of future cyrus imap 3.0 and realized that mupdate master will not use openio. Is it correct? Also, the various databases will not be on openio, only the messages theirselves. Is it correct too? Could the performance and horizontal scalability improve using

Re: Archiving

2016-05-10 Thread Andre Felipe Machado via Info-cyrus
Hello, AFAIK, the one with potential to scale is https://www.enkive.org Regards. Andr� Felipe Paul Bronson via Info-cyrus wrote .. Any good open source archiving software out there? Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipe

cyrus storage iops dimensioning

2016-04-29 Thread Andre Felipe Machado via Info-cyrus
Hello, Should I use the 10 minute average output of "sar -dp" command , the daily average, or should I use the peak of "iostat -dmt 1 10" or "iostat -dmxht 1 100" output for cyrus imap storage IOPS specs? Regards. Andre Felipe Cyrus Home Page: http://www.cyrusimap.org/ List Archive

Re: Cyrus tweaks (slow on roundcube)

2015-09-11 Thread Andre Felipe Machado
should it be? I was curious and checked.. Entropy on some of my other big time production servers for email is only about 200) and its lightning fast? - Paul> On Sep 10, 2015, at 5:00 PM, Andre Felipe Machado wrote: > > Hello, > Entropy of 158 is way too low for production serve

Re: Cyrus tweaks (slow on roundcube)

2015-09-11 Thread Andre Felipe Machado
issues. > > Are their sasl or Cyrus logs I can provide? > > - Paul > > > On Sep 10, 2015, at 5:00 PM, Andre Felipe Machado > wrote: > > > > Hello, > > Entropy of 158 is way too low for production servers. And this *MAY* cause > > weird &g

Re: Cyrus tweaks (slow on roundcube)

2015-09-11 Thread Andre Felipe Machado
signaldevelo...@gmail.com wrote .. > Andre, > > Really? What should it be? I was curious and checked.. Entropy on some of my > other > big time production servers for email is only about 200) and its lightning > fast? > > - Paul > > > On Sep 10, 2015, at 5:00

Re: Cyrus tweaks (slow on roundcube)

2015-09-10 Thread Andre Felipe Machado
Hello, Entropy of 158 is way too low for production servers. And this *MAY* cause weird slowness without logging any errors. You could install "haveged" and configure for max threshold levels on production servers. https://packages.debian.org/search?keywords=haveged Regards. Andre Felipe http://

Re: (mmap, munmap) X (msync, NFS) => (NFSv4, fio)

2013-03-28 Thread Andre Felipe Machado
-many-number-files-thousands-millions/ http://stackoverflow.com/questions/13400312/linux-create-random-directory-file-hierarchy http://lists.debian.org/debian-user/2012/12/msg01253.html Regards Andre Felipe Machado http://www.techforce.com.br Cyrus Home Page: http://www.cyrusimap.org/ List Arc

(mmap, munmap) X (msync, NFS)

2013-03-22 Thread Andre Felipe Machado
//fixunix.com/unix/84153-posix-i-o-nfs-noac-option.html Regards. Andre Felipe Machado http://www.techforce.com.br Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus

Re: very large mailboxes backup, long retention period deleted also

2013-03-21 Thread Andre Felipe Machado
://bugzilla.redhat.com/show_bug.cgi?id=59992 a cyrus over NFS on non linux (OpenIndiana? Solaris? seems to use zones) http://lists.andrew.cmu.edu/pipermail/info-cyrus/2012-June/036242.html a cyrus over NFS on linux https://lists.andrew.cmu.edu/pipermail/info-cyrus/2012-March/035951.html Regards. Andre Felipe

Re: very large mailboxes backup, long retention period deleted also

2013-03-20 Thread Andre Felipe Machado
partition at separated high-speed LUN on fs and kernel tuned for small files[1,2,3], it could be possible to use NFS only for data partition. Had anyone tried this approach on production? What are the recent cyrus 2.4.x versions experiences over NFS? Regards. Andre Felipe Machado [1] http

Re: very large mailboxes backup, long retention period deleted also

2013-03-17 Thread Andre Felipe Machado
Hello, Imapsync can move flagged messages across servers. imapsync ... --search DELETED http://imapsync.lamiral.info/FAQ But it is slow for daily syncs. Seems only feasible for migrations. We used a grid of machines for large migrations. Is there a better way? Regards. Andre Felipe Machado

very large mailboxes backup, long retention period deleted also

2013-03-17 Thread Andre Felipe Machado
/info-cyrus/2010-February/032524.html http://lists.andrew.cmu.edu/pipermail/info-cyrus/2010-February/032533.html http://lists.andrew.cmu.edu/pipermail/info-cyrus/2011-February/034500.html Regards. Andre Felipe Machado http://www.techforce.com.br Cyrus Home Page: http://www.cyrusimap.org/ List

Debian Linux kernel tuning for low latency on small files

2012-05-29 Thread Andre Felipe Machado
mall_files Regards Andre Felipe Machado Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus

total space = (used quota) + (to be expunged)?

2012-02-06 Thread Andre Felipe Machado
Hello After reading some archived list msg [1], and database formats doc (quotas topic)[2], I realized that there is not a "high level" cyrus command to display total disk/partition space actually used at a Cyrus imap backend. In order to get exact (approximated when single instance store is enab

Re: Cyrus setup for eGroupWare

2012-01-17 Thread Andre Felipe Machado
Hello, It may have more info than you need, but you could find steps and tests at the (brazilian portuguese) tutorial: http://www.techforce.com.br/news/linux_blog/cyrus_murder_aggregator_2_3_16_debian _lenny_tutorial Regards. Andre Felipe Cyrus Home Page: http://www.cyrusimap.org/ List Ar

info-cyrus@lists.andrew.cmu.edu

2010-12-28 Thread Andre Felipe Machado
t that other webmail clients have similar "unwise" access patterns. So, one should *aggressively* fine tune filesystem for small files writes/updates. The webmail clients could be redesigned to use wise imap command patterns. Could cyrus project publish some hints at site? Good lu

info-cyrus@lists.andrew.cmu.edu

2010-12-27 Thread Andre Felipe Machado
Hello, >From the docs, the default db backend is now skiplist for all those. Unfortunately, for some access profiles, it has not good performance, as our tests showed. You could try to change some of them to more suitable backends, for example, quotalegacy for quotas, berkeley-nosync for deliver.db

Re: Cyrus IMAP running in linux: recommended file system

2010-12-17 Thread Andre Felipe Machado
ies a given amount of housekeeping and cpu, it should be a convenient point trade off. Again, test it at your hw/storage/network setup. Regards. Andre Felipe Machado [0] http://www.techforce.com.br/news/linux_blog/lvm_raid_xfs_ext3_tuning_for_small_files_parallel_i_o_on_debian Cyrus Home Page:

Re: Cyrus IMAP running in linux: recommended file system

2010-12-17 Thread Andre Felipe Machado
murder on Debian, on a Xen VMs, using VHD vdisks, containing a XFS, for comparisons with raw lvm vdisks. Good luck. Andre Felipe Machado [0] http://www.techforce.com.br/news/linux_blog/lvm_raid_xfs_ext3_tuning_for_small_files_parallel_i_o_on_debian Cyrus Home Page: http://www.cyrusimap.org

Re: high-availability Cyrus (i.e. glusterfs)?

2010-09-28 Thread Andre Felipe Machado
that glusterfs evolved since the written article and newer versions use somewhat different confs and tuning, that depends of YOUR infrastructure. You will need some translation service to articles on brazilian portuguese. Look for "Translate this page." link near bottom of each

Re: A beginner question about Murder

2010-09-08 Thread Andre Felipe Machado
Hello, The cyrus murder/aggregator finds its machines by their names, not ip. You have to have dns records or all /etc/hosts configured. You may use virtual machines for the mupdate master, for example, at your servers. Regards. Andre Felipe Machado Cyrus Home Page: http://www.cyrusimap.org

patches for cyrus murder/aggregator honor serverlist and defaultserver options on Debian

2010-09-08 Thread Andre Felipe Machado
h missed the point. Also, more testers are needed. As we are running an already patched Debian cyrus murder/aggregator 2.3.16 hmh branch , the sent patches may be not promptly applied to pristine cyrus source. Regards. Andre Felipe Machado [0] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=595

cyrus murder serverlist ?

2010-08-30 Thread Andre Felipe Machado
enumerated) IMAPOPT_PROXYSERVERS or IMAPOPT_DEFAULTSERVER imapd_userisadmin || imapd_userisproxyadmin But despite configuring them, the frontend still writes locally... Please, what am I missing? Regards. Andre Felipe Machado Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http

does aggregator honors defaultserver conf?

2010-08-25 Thread Andre Felipe Machado
erver parameters. Were they configured correctly? Did not find any related config errors at the mailservers logs yet. What did I miss? Please, point to some documentation/list archive/wiki url that could guide at this issue. Regards. Andre Felipe Machado http://www.techforce.com