search for: noac

...e performance problem manifests as very high system% utilization - basically iowait for NFS. There are two imap servers with plenty of horsepower/memory/etc. They are connected to a 3050c cluster via gig-e. Here are the mount options: rw,tcp,nfsvers=3,rsize=8192,wsize=8192,nosuid,nodev,soft,intr,noac,actimeo=0 I need to get this system% utilization brought down because it is starting to slowdown imap performance for other users (it goes up to 95% on a regular basis, with users that have folders with many messages). My thought is to try removing the noac option and bump up the actimeo value fr...

Hi, Our dovecot setup consists of two hosts running dovecot-1.0.beta9 with Maildir/indices stored on NFS(noac,actimeo=0 used). I am seeing these messages at times - but no real problems on the client side. Is this something to worry about? dovecot: Oct 17 10:33:31 Error: IMAP(user): Corrupted index cache file mailstore/user/Maildir/.mail.incoming/dovecot.index.cache: invalid record size Thanks! -------...

On Nov 8, 2014, at 1:52 PM, Steve Read <sd_read at hotmail.com> wrote: > I have made changes but it is still the same. That is when the server gets the lowbat/noAC signal it does shut down as expected but the slave does not. > > Perhaps it makes sense for me to list the present settings: > > On the Master: > > nut.conf > MODE=netserver > > ups.conf > [sdrups] > driver = genericups >...

...nning. Users are normally directed to their "preferred" server but, if it is unavailable, will go via the other server. Q1. Am I right in thinking that for the Message Store and Control Files I should NFS-mount both of them with the "actimeo=0"? (Or would "noac" be better, which also turns off client write- caching as well as the attribute cache?) Q2. Should I NFS-mount either or both of the Message Store and Control Files with the "noxattr" option to turn off extended attributes? Q3. Which of the filestores should I moun...

Hi there, I'm getting a lot of this message in production log: Created dotlock file's timestamp is different than current time (1232468644 vs 1232468524): /path/to/dovecot.index.log The IT guy swears the clocks are sincronized. Whe even have made a test in the machine running dovecot, inside the user's mailbox: # > foo; ls -l --time-style=full-iso foo; date -rw-r--r-- 1 root root

...e running 1.2.8 with that set, as well as mail_nfs_index=yes, mmap_disable=yes and fsync_disable=no. We have a pool of POP/IMAP and SMTP machines that are accessing the maildirs, and can't guarantee any sort of user session affinity to a particular host. We also mount our NFS shares with 'noac', which is what I'm writing to ask about. I'd like to stop doing that for performance reasons. Do you see any issues with taking that out of the mount options, given our environment? Thanks, -Brad

...urned error 88 The storage being mounted is netapp. We don't see any errors/issues on the storage itself or the switches this client is connecting thru. The NFS network is a 2-interface ( 2 x 1Gb UTP) bond which shows no errors of any kind. We are mounting with the following mount options: rw,noac,nointr,bg,hard,timeo= 600,wsize=32768,rsize=32768,nfsvers=3,tcp This problem sometimes hits the OCR votedisk shares and causes the instance to crash. These systems were upgraded to 5.6 back in January. Currently running 2.6.32-300.4.1. Thanks for any info,

Hi, well i mounted the OCFS drive over nfs, but it seems to have problems with it, because the NFS does not detect changes (if I add or delete files) the nfs shares still shows the old status. If i delete a file on the OCFS volume, and i am doing a "ls" on one of the nfs clients, it says for every file which was on the ocfs, "no such file or directory". Did I miss

Timo (and anyone else who feels like chiming in), I was just wondering if you'd be able to tell me if the amount of corruption I see on a daily basis is what you consider "average" for our current setup and traffic. Now that we are no longer experiencing any core dumps with the latest patches since our migration from courier two months ago, I'd like to know what is expected

I would like to verify my understanding keeping in mind I have a one master and one slave computer. When the master gets the low batt/noAC signal it initiates a broadcast packet(s) on port 3493. 1) Is this correct? Then the slave computer must have this port open and it listens on this port for the shut-down command. 2) Is this correct? On the slave if I run the following: steve at MyDesktop:~$ nmap -p 3493 192.168.0.6 Starting Nmap 6...

...2 with a 2.6.9-22.0.1.106 kernel. This kernel has xfs extensions, and we're running the xfs filesystem for /home (obtained from CentOS website). In "lsmod" I see both 3w_xxxx and 3w_9xxx modules. NFS is over UDP, jumbo frames (9000), 32k rsize/wsize, async server, async clients, noac. This system has been serving /home in this configuration since October 2005; we've seen it crash rarely, but uptimes were usually on the order of months. This past week, it can't seem to remain up for much longer than about a day. Kernel log file containing the crash: Feb 12 05:52:0...

...a; activity for any given user ought to be within one box although this cannot be 100% guaranteed. There is the risk of multiple simultaneous access (e.g. simultaneous LDA/delivers; simultaneous LDA/deliver and user-driven IMAP update; etc.). So locking is an important consideration. Decent "noac,actimeo=0" seems to address this succcessfully. But indexes... What is the best place for the index files? Logically alongside the INBOX area on the shared-NFS area? Or within each UN*X machine? (Or something else?) And why? Is there documentation of what functionality the index files p...

...ig "smb read andX responses" (65536 bytes as stated in smb.conf with "max xmit") and total transfer size is about equal to the file size. the NFS export is mounted on the samba server using options: rw,noatime,nodiratime,bg,soft,rsize=65536,wsize=65536,nfsvers=3,proto=tcp,nocto,noacl,noac,int,nolock The cubersome bit: At this point you can easily blame NFS (which i did) and claim sharing NFS exports via samba is just not a good idea (probably right anyway). BUT... a windows client that sits next to the samba server can open the problematic PDF files without anyproblem, eve...

On Nov 9, 2014, at 3:48 PM, Steve Read <sd_read at hotmail.com> wrote: > I would like to verify my understanding keeping in mind I have a one master and one slave computer. > > When the master gets the low batt/noAC signal it initiates a broadcast packet(s) on port 3493. > > 1) Is this correct? No, the slave computer's upsmon process connects to the master (via TCP, so point-to-point, not broadcast), and listens for the OB (on battery) and then "OB LB" (on battery; low battery) status. (...

I have made changes but it is still the same. That is when the server gets the lowbat/noAC signal it does shut down as expected but the slave does not. Perhaps it makes sense for me to list the present settings: On the Master: nut.conf MODE=netserver ups.conf [sdrups] driver = genericups port = /dev/ttyS1 desc = "For Server &...

I'm running beta7 on two machines, with maildir on NFS. I have lockd running on all machines. I've found that Dovecot is highly unstable with NFS when accessing a mailbox on more than one machine at the same time. Both dovecot machines have: mmap_disable = yes lock_method = fcntl NFS is version 3, exported from a third linux machine. All machines are running 2.6.9 kernel. Any ideas

...under "examine") that has worried OE. Any thoughts? Finally any hints for NFS-based working? We have a farm of a few Fedora machines running the IMAP processes and the sendmail locally-delivery. Our current "/etc/fstab" NFS spec. for the INBOX area (on a NetApp) is: rw,noac,actimeo=0,vers=3,tcp,timeo=600,rsize=32768,wsize=32768,hard,intr,fg,nosuid Any changes? Issues? Thinks to consider? Etc. Many thanks. -- : David Lee I.T. Service : : Senior Systems Programmer Computer Centre : :...

...tmp/users/$uid chown $uid.users /.tmp/users/$uid ln -s /.tmp/users/$uid /.tmp/switch/$uid done mkdir -pm 1777 /.tmp/users/default; ln -s /.tmp/users/default /.tmp/switch/default # Prepare NFS-mounted /.tmp/switch directory mkdir -pm 755 /.tmp/nfs mount localhost:/.tmp/switch /.tmp/nfs -o noac # Replace old /tmp directory mv /tmp /tmp.old ln -s /.tmp/nfs/cdf:uid /tmp That looks somewhat convoluted, so let me explain how it works: When a process tries to look up /tmp, it will read the symlink pointing to /.tmp/nfs/cdf:uid. Looking up the symlink, it will encounter the NFS mount point...

(Using dovecot 1.0 RC7 on Fedora Core 5) <scene set> Hitherto we have used UW-IMAP on a "farm" of Linux machines mounting NFS from a NetApp. (The UW-IMAP author doesn't like use of NFS, but with careful use of NFS mount arguments ('noac,actimeo=0' etc.) and trying to ensure that all activity for a given user takes place within one machine in the farm, we seem to have been OK.) We have also used UW-IMAP's 'tmail' (in sendmail.cf) and 'dmail' (from any user procmail recipes), so that access to the INBOX has...

...'re on Solaris 10x86 mounting /var/mail from another Solaris 10 hosts via >> NFS4. >> >> Yes, /var/mail is an NFS. These are the mount options: >> >> mayor.ics.uci.edu:/mail_tank_001/spools - /var/mail nfs - >> yes rw,nosuid,hard,intr,bg,noac >> > > Are you using Dovecot version 1.1.1? If you are using an earlier > version (i.e. a 1.1 release candidate), there was an update that was > made that eliminited these errors in certain circumstances. > Specifically under Solaris I might add. > > If you are usin...