Re: Solaris cache warning / error

2011-03-11 Thread John Plevyak
The largest hardware sector size that the cache supports is 8K. It seems that Solaris is highly configurable this way and can have a 'hardware' sector size up to 128k as a configuration option for the OS. Is this with the new Solaris patch? What sort of a storage.config and filesystem are you on

Re: The logic structure of class Part in iocore/cache/P_CachePart.h

2011-03-11 Thread John Plevyak
Each bucket points to a linked list of directory entrys (Dir) which point to "fragment"s which is a contiguous piece of an "object" or "document". For performance reasons (to take advantage of the L1 cache) Dir entries allocated for a bucket are taken first from the other 3 entries in the bucket.

How TS find object from object database (cache)

2011-03-11 Thread ChangCheng
Hi guys:I'm glad to join this group, i'm currently a college senior student with a little extra bit of time on my hands and wanted to get a little experience with TS.Currently,I have accrued some basic knowledge through go through TS Administrator's Guide.For now, there is a problem i can't u

Re: How TS find object from object database (cache)

2011-03-11 Thread John Plevyak
I will answer from the point of view of the cache and perhaps someone else could answer the more detailed HTTP/1.1 questions which are outside of my expertise. The cache get's a hash (MD5) (of the URL after some massage I suppose, don't quote me on that). It looks it up in a big hash table which g

RE: How TS find object from object database (cache)

2011-03-11 Thread ChangCheng
John,Thanks your clearly explan from the point of view of the cache , for now , i am confused about how TS start lookup cache. For example, when user request www.google.com . follow this diagram. we can see ,the TS start cache lookup after Os DNS lookup,The question is, what variable that

Re: Solaris cache warning / error

2011-03-11 Thread Leif Hedstrom
On 03/11/2011 09:42 AM, John Plevyak wrote: The largest hardware sector size that the cache supports is 8K. It seems that Solaris is highly configurable this way and can have a 'hardware' sector size up to 128k as a configuration option for the OS. Is this with the new Solaris patch? What sort

Re: Solaris cache warning / error

2011-03-11 Thread Igor Brezac
On Fri, Mar 11, 2011 at 6:24 PM, Leif Hedstrom wrote: > > On 03/11/2011 09:42 AM, John Plevyak wrote: >> >> The largest hardware sector size that the cache supports is 8K. >> >> It seems that Solaris is highly configurable this way and can have a >> 'hardware' >> sector size up to 128k as a config