Re: [squid-users] cachemgr storeEntries count and coss

Manoj_Rajkarnikar wrote:
> replying to my own post, it does seem that cachemgr counts number of
> objects from all available cache_dirs. in my case, the number of objects
> of size 0-16kb was so huge that shifting them to a small 4G coss dir
> caused to drop total number of cached objects massively. I've no added
> 12G more to the coss dir and the number of objects is now picking up well.
>
> thanks any ways.

Thank you for this feedback. It is very useful to know.

Amos

>
> Manoj
>
> On Tue, 22 Jul 2008, Manoj_Rajkarnikar wrote:
>
>> Hi all.
>>
>> I've recently added a coss storage to our cache and is performing
>> great. But I see that the cachemgr is showing the decrease in
>> storeEntries count and also the mean object size has increased from
>> ~15k to ~25k. before coss was introduced, we had 64G of cache_dir
>> split into 2 scsi disks and ~4m objects in the storage. now we
>> introduced 4G coss dir with max object size of 16k on a separate sata
>> disk. and after 4 days of operation, coss storage is 82% full and the
>> cachemgr reports that we only have ~2.4m objects in the storage. we're
>> using squid 2.7S3.
>>
>> squid.conf:
>>
>> cache_dir coss /coss/cossfile 4096 block-size=512
>> max-stripe-waste=16384 max-size=16384
>> cache_dir aufs /sda1/cache0 30720 50 256 min-size=16384 max-size=18874368
>> cache_dir aufs /sdb1/cache0 30720 50 256 min-size=16384 max-size=18874368
>>
>> cachemgr:
>>
>> Internal Data Structures:
>> 2412947 StoreEntries
>> 27350 StoreEntries with MemObjects
>> 26900 Hot Object Cache Items
>> 2410991 on-disk objects
>>
>> Cache information for squid:
>> Request Hit Ratios: 5min: 37.6%, 60min: 39.8%
>> Byte Hit Ratios: 5min: 43.3%, 60min: 41.3%
>> Request Memory Hit Ratios: 5min: 4.9%, 60min: 5.3%
>> Request Disk Hit Ratios: 5min: 48.3%, 60min: 48.4%
>> Storage Swap size: 63239875 KB
>> Storage Mem size: 261712 KB
>> Mean Object Size: 26.29 KB
>>
>> does cachemgr count the store entries in coss stores as well??
>>
>> Thanks
>> Manoj
>>
>

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