Sachin Malave wrote:
On Mon, Dec 21, 2009 at 6:21 PM, Amos Jeffries <squ...@treenet.co.nz> wrote:
Sachin Malave wrote:
Dear Amos,
Thank you for updating wiki.squid-cache.org/Features/SmpScale, now
ideas are more clear, I have already started working on the
architecture that is proposed...
Thank you for your thanks.
Which part and which layer are you working towards now?
(the earlier work you have already done was towards mid-layer)
If it was top-layer there are a few speed bumps we've already identified and
not yet documented:
YES, IT IS.
Missing Pieces (most to least difficult):
* Mechanism to replace SquidConf:cache_dir (proposal cache_disk /media/path
SIZE ) - a set of disk entries. Master instance to load and portion off each
child instance with one or more disks. The child instance to determine what
types of storage (old SquidConf:cache_dir types) to be stored there and what
sizes will fit in the disk max given.come
* Mechanism to handle many SquidConf:http_port and other listening port
directives - Master instance doing accept and passing to children? or all
children listening on all ports on a first-accept-wins basis?
* Mechanism needed to replace existing method of master instance
"monitoring" for a dead child instance. Perhapse listening socket based?
* Mechanism to split cache_mem between all child instances. Or do we leave
this as-is and call it a per-instance allocation?
* Mechanism to keep unique_hostname unique per instance? do we even need
to? is it safer to consider the whole bunch of instances one unique "host"
and leave the existing code preventing complicated loops paths between
instances?)
Amos
I THINK YOU HAVE GIVEN ME ENOUGH MATERIAL FOR THIS ACADEMIC SEMESTER :)
Before everything i will concentrate on all above mentioned points...
I need some time for analysis..... will be back soon with solutions
:) hehe. Just pick one that appears easy. Or you may find something else
entirely we have not thought of. Any one of those bumps may take a
semester or several to get done and working. It will be around a year or
two before the top SMP layer is fully working.
Amos
--
Please be using
Current Stable Squid 2.7.STABLE7 or 3.0.STABLE20
Current Beta Squid 3.1.0.15
