Re: [exim] what is this "Failed to get write lock for"

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Autor: roos
Datum:  
To: exim-users
Betreff: Re: [exim] what is this "Failed to get write lock for"
I don't see the lack of I/O. I user adaptek serial ata raid of 10 level.
These are my stats:

iostat -k:
Linux amd64-k8-smp-aac          05/17/06


avg-cpu:  %user   %nice    %sys %iowait   %idle
           6.82    0.00    7.18   43.17   42.83


Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn
sda               2.83       124.85       112.76  935291081  844728062
sdb             230.44       158.58        88.06 1187928059  659633296


or
vmstat 1

procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy id wa
 3  1   7008  84520  90840 607468    0    0   428   674    2     3  7  7 43 43
 3  0   7008  74372  90872 607572    0    0   176   514 2065  3397 25 29 31 14
 1  1   7008  91548  90936 607848    0    0   200   701 2342  4052 27 29 31 12
 2  0   7008  90200  91012 608112    0    0   308   688 2309  3252 26 30 25 18
 1  1   7008  89024  91052 608344    0    0   208   417 1764  3300 26 29 31 16
 1  1   7008  81424  91116 610524    0    0   252   469 3222  5392 30 29 35  6
 1  0   7008  86068  91232 611156    0    0   564  2771 2269  3039 19 24 24 34
 0  0   7008  88092  91280 611584    0    0   248  1193 2391  3759 24 30 27 18
 1  2   7008  79012  91348 611992    0    0   216   882 2021  3606 27 28 28 18


vmstat 1 -p sdb2
sdb2          reads   read sectors  writes    requested writes
           594831358 1077172625 1009896504 4292763184
           594831408 1077173177 1009896630 4292765057
           594831470 1077173857 1009896754 4292766245
           594831530 1077174473 1009896851 4292767134
           594831592 1077175145 1009896951 4292768542
           594831652 1077175809 1009897013 4292769329
           594831693 1077176225 1009897129 4292770799
           594831750 1077176849 1009897234 4292772061
           594831824 1077177585 1009897343 4292773535
           594831869 1077178049 1009897423 4292774331
           594831932 1077178681 1009897533 4292775643
           594831976 1077179153 1009897715 4292778159
           594832027 1077179713 1009897815 4292779332
           594832096 1077180481 1009897925 4292780889


/var/spool/exim4 is on sdb2

Is using of more fast storage needed here?

On Tue, May 16, 2006 at 16:25 -0500, Phil Brutsche wrote:
> roos wrote:
> > Hi. I have noticed in logs :
> >
> > 2006-05-16 09:27:46 1Fft0D-0002em-Kr Failed to get write lock for
> > /var/spool/exim4/db/name_of_the_transport.lockfile: timed out
> > 2006-05-16 09:27:46 1FdqWa-0004ml-4i Failed to get write lock for
> > /var/spool/exim4/db/name_of_the_transport.lockfile: timed out
>
> I have found that it means that the disk(s) /var/spool/exim4/db resides
> on don't have the I/O capacity to meet Exim's needs... ie using IDE
> drives when you should be using SCSI.
>
> In my situation the messages went away when I put the hints databases on
> a tmpfs ramdisk - for me it wasn't critical that they be saved between
> reboots, and faster disks weren't an option.
>
> --
>
> Phil Brutsche
> phil@???
>
> --
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