Re: [squid-users] ./squid -z questions

Thanks, here's the additional info. Could there be a bug?

I've changed the high/low level, but it seems that only some cache_dir
lowers their storage. Those who hit 99-100% stills keeps hovering between
that level until the warning comes (lowered automatically by squid to
prevent crashing).

Filesystem 1k-blocks Used Available Use% Mounted on
/dev/sda1 505605 106853 372648 23% /
none 1293776 0 1293776 0% /dev/shm
/dev/sda6 505605 8239 471262 2% /tmp
/dev/sda5 4127076 788332 3129100 21% /usr
/dev/sda8 23640176 1279368 21159952 6% /usr/local
/dev/sda3 5162828 472364 4428204 10%
/usr/local/squid/logs
/dev/sda7 505605 67777 411724 15% /var
/dev/sdb1 17211212 12727952 3594868 78%
/usr/local/squid/cache2
/dev/sdb2 17218732 16049828 280108 99%
/usr/local/squid/cache3
/dev/sdc1 17359192 12754736 3708436 78%
/usr/local/squid/cache4
/dev/sdc2 17359220 12701628 3761568 78%
/usr/local/squid/cache5
/dev/sdc3 17359220 15735748 727448 96%
/usr/local/squid/cache6
/dev/sdc4 17359220 15883264 579932 97%
/usr/local/squid/cache7
/dev/sdd1 17359192 15863172 600000 97%
/usr/local/squid/cache8
/dev/sdd2 17359220 15476828 986368 95%
/usr/local/squid/cache9
/dev/sdd3 17359220 15574196 889000 95%
/usr/local/squid/cache10
/dev/sdd4 17359220 15551112 912084 95%
/usr/local/squid/cache11
/dev/sde1 17359192 16106176 356996 98%
/usr/local/squid/cache12
/dev/sde2 17359220 15987532 475664 98%
/usr/local/squid/cache13
/dev/sde3 17359220 15422344 1040852 94%
/usr/local/squid/cache14
/dev/sde4 17359220 16254176 209020 99%
/usr/local/squid/cache15
/dev/sdf1 17359192 15659120 804052 96%
/usr/local/squid/cache16
/dev/sdf2 17359220 15555732 907464 95%
/usr/local/squid/cache17
/dev/sdf3 17359220 14615468 1847728 89%
/usr/local/squid/cache18
/dev/sdf4 17359220 16296124 167072 99%
/usr/local/squid/cache19

====================

cache_dir ufs /usr/local/squid/cache2 15360 32 256
cache_dir ufs /usr/local/squid/cache3 15360 32 256
cache_dir ufs /usr/local/squid/cache4 15360 32 256
cache_dir ufs /usr/local/squid/cache5 15360 32 256
cache_dir ufs /usr/local/squid/cache6 15360 32 256
cache_dir ufs /usr/local/squid/cache7 15360 32 256
cache_dir ufs /usr/local/squid/cache8 15360 32 256
cache_dir ufs /usr/local/squid/cache9 15360 32 256
cache_dir ufs /usr/local/squid/cache10 15360 32 256
cache_dir ufs /usr/local/squid/cache11 15360 32 256
cache_dir ufs /usr/local/squid/cache12 15360 32 256
cache_dir ufs /usr/local/squid/cache13 15360 32 256
cache_dir ufs /usr/local/squid/cache14 15360 32 256
cache_dir ufs /usr/local/squid/cache15 15360 32 256
cache_dir ufs /usr/local/squid/cache16 15360 32 256
cache_dir ufs /usr/local/squid/cache17 15360 32 256
cache_dir ufs /usr/local/squid/cache18 15360 32 256
cache_dir ufs /usr/local/squid/cache19 15360 32 256

=================================

cache_swap_low 80
cache_swap_high 85

==================================

>From: Hendrik Voigtländer <hendrik@voigtlaenders.net>
>To: Lizzy Dizzy <lizzy_99@hotmail.com>
>CC: squid-users@squid-cache.org
>Subject: Re: [squid-users] ./squid -z questions
>Date: Mon, 28 Jun 2004 08:21:32 +0200
>
>
>
>Lizzy Dizzy wrote:
>>Hi, I have a caching server with 6 SCSI disks. The first disk contains the
>>squid application and kernel while the other 5 are just cache storage.
>>
>>Some times back, the first disk crashed and I recreated the OS and squid
>>application on another similar machine and put the disk back. I ensure
>>that partitioning in the cache_dir (inside squid.conf) is the same as what
>>is partitioned inside the 5 cache disk.
>>
>>Lately I notice the following:
>>
>>2004/06/28 10:05:40| diskHandleWrite: FD 1028: disk write error: (28) No
>>space left on device
>>2004/06/28 10:05:40| storeUfsWriteDone: got failure (-6)
>>2004/06/28 10:05:40| storeSwapOutFileClosed: dirno 12, swapfile 0004689A,
>>errflag=-6
>> (28) No space left on device
>>
>>
>>/dev/sde3 17359220 15373680 1089516 94%
>>/usr/local/squid/cache14
>>/dev/sde4 17359220 16283368 179828 100%
>>/usr/local/squid/cache15
>>/dev/sdf1 17359192 15388208 1074964 94%
>>/usr/local/squid/cache16
>>
>>
>>I've set the low and high mark from 90 and 93 to
>>
>>cache_swap_low 80
>>cache_swap_high 85
>>
>>but they do'nt seems to help. I am wondering if I need to force squid
>>recreate the cache directories (by using squid -z). But would I loose the
>>cache data? Do I need to remove the existing directories first? Can I use
>>squid -z without creating directories in the harddisks frst (i.e. let
>>squid create them based on the cache_dir lists)
>>
>I don't think that you need to recreate the cache dirs.
>IMHO you would loose the data as you need to remove at least the dir you
>want to recreate. You can recreate a single cache_dir, I use a modified
>squid.conf (with only one cache_dir) for that.
>Erasing a cache_dir take ages. If you need to keep the squid up, deactivate
>the cache_dir in squid.conf. Creating a new filesystem is definitely
>faster.
>There might be another problem. Please post your cache_dir settings.
>
>Regards, Hendrik Voigtländer

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Received on Mon Jun 28 2004 - 01:54:11 MDT