Your reply is definitely helpful in re-configuring the new proxy server. But I am more interested in the correct way of migrating/copying cache Will a simple rsync -vertp --partial --progress /var/squid/cache1/* <dst> do? What are the remaining steps? Will there be any permissions issue? What if those copied files just stay there and not be used? On Thu, Aug 29, 2013 at 3:30 AM, Eliezer Croitoru <eliezer@xxxxxxxxxxxx> wrote: > On 08/29/2013 12:42 AM, Nehal J Wani wrote: >> On Thu, Aug 29, 2013 at 3:01 AM, Eliezer Croitoru <eliezer@xxxxxxxxxxxx> wrote: >>> On 08/29/2013 12:07 AM, Nehal J Wani wrote: >>>> On Thu, Aug 29, 2013 at 2:32 AM, Eliezer Croitoru <eliezer@xxxxxxxxxxxx> wrote: >>>>> On 08/28/2013 11:16 PM, Nehal J Wani wrote: >>>>>> I am using CentOS 6.4 and want to set up a new proxy server using >>>>>> squid. Can anybody help me with the steps to be followed for migrating >>>>>> cache? >>>>>> >>>>> What do you have now? >>>>> What do you aim for?? >>>>> I have compiled new versions of squid for CentOS which is kind of an >>>>> upgrade to the current squid package that do exist. >>>> >>>> Oh no. I am using standard packages. Both are squid 3.1.10 >>>> >>> OK >>>>> did you ever used squid before?? >>>> >>>> Basically, I have to reconfigure the old server to add new partitions >>>> for extra space for logs and cache. >>>> Hence. temporarily, I am shifting to a new proxy. Therefore, I need to >>>> migrate the proxy cache. >>> OK so if you do have a new server then it depends on the load of the >>> server but if it's more then a basic server use a dedicated disk for >>> squid logs... >>> for many admins these logs are important so a raid volume\disk will >>> might be better. >>> LVM can ensure you the option to extend the size of the partition in a >>> case of a loaded server. >>> >>> For the cache_dir it's another story since there is a limit for the size >>> by the ram etc. >>> Can you share the current proxy specs and squid.conf?? >>> you can strip down the confidential info and I will try my best to >>> understand and help you if I can.. >>> >>> Eliezer >> >> >> I haven't migrated the cache completely as of yet. While copying the >> cache2 directory from old server, >> the RAID5 partition committed suicide. I have attached the output of >> fpaste --sysinfo. >> >> >> > OK this is pretty understandable.. > it seems to me like more then just a small cache but I might be wrong... > there is a basic calculation of RAM VS DISK cache. > I dont remember now the calculation but I do remeber it's a FAQ. > take a peek at: > http://wiki.squid-cache.org/SquidFaq/ConfiguringSquid#What_.27.27cache_dir.27.27_size_should_I_use.3F > > There is the question and calculation of how much RAM you can use.. > The CPU is not an issue but squid DB which is residing in RAM takes up > space per number of objects. > I do Hope that AMOS later on will respond with the right calculation. > This is the right time to actually write a small script that will help > linux users calculate it. > There is a windows squidcalc if i'm right Program that can instruct you > how to configure the cache_dir size. > By the way take into account that the proxy might have been configured > wrongly for a very long period of time and this is indeed a good time to > tweak the right settings. > Yet I have seen the squid.conf so I was only referring to what I have > understood from the plain system info. > > Eliezer > > > -- Nehal J Wani UG3, BTech CS+MS(CL) IIIT-Hyderabad http://commandlinewani.blogspot.com
