Distributed Cache Problems

[Hierony Manurung <hierony_milanisti@xxxxxxxxxxx>]

Dear Fellow,
I am implement a Distributed cache system (1 child Proxy, 2 parent proxy as sibling).
in the cache peer algorithm, I use Weighted Round-Robin.
But when I analyze the log using Squeezer, I am found that there is no hit request

in the parent proxy.

I have attached the conf (Child.conf, Parent1.conf,Parent2.conf), and the log analyze
result.
For Simplicity, Just download the Zip file.
I am very pleased that you want to lend your time to help me (Because the deadline is very close).

Thanks in advance.

 

Hierony Manurung
Del Institute of Technology
Network Management

Attachment: Child-Conf.conf
Description: Binary data

Attachment: Parent1-Conf.conf
Description: Binary data

Attachment: Parent2-Conf.conf
Description: Binary data

Title: SQUID performance report and diagnostics for 30/04/2015 10:36 to 30/04/2015 10:42

General statistics

Traffic category	Requests	Requests %	Traffic volume MB	Volume %	Speed kB/s
Total traffic	201164	100.0	936.56	100.0	250.88
Direct traffic vs web cache hierachy hits
Fetches directly from original Web servers	73865	36.7	273.26	29.2	107.23
Fetches from original servers through parents	1829	0.9	20.82	2.2	41.63
Hierarchy hits	24723	12.3	281.19	30.0	1414.23
Detailed web cache hierarchy traffic
Hits from siblings and parents	0	0.0	0.00	0.0	0.00
Local Squid hits	24723	12.3	281.19	30.0	1414.23

Detailed web cache hierarchy cooperation performance

Peers - overall cooperative statistics
Peer	Options	Requests	Request %	Traffic volume MB	Volume %	Speed kB/s
-	, ,,	0	0.0	0.00	0.0	0.00
parent202.tatk.del.ac.id	8082, 3344,parent,htcp	914	0.5	10.40	1.1	31.60
parent201.tatk.del.ac.id	8080, 3344,parent,htcp	915	0.5	10.41	1.1	60.96
Detailed traffic through parents performance
Peer	Options	Hits	Request %	Traffic volume MB	Volume %	Speed kB/s
-	, ,,	0	0.0	0.00	0.0	0.00
parent202.tatk.del.ac.id	8082, 3344,parent,htcp	914	0.5	10.40	1.1	31.60
parent201.tatk.del.ac.id	8080, 3344,parent,htcp	915	0.5	10.41	1.1	60.96
Peers - detailed hit statistics
Peer	Options	Hits	Request %	Traffic volume MB	Volume %	Speed kB/s
-	, ,,	0	0.0	0.00	0.0	0.00
parent202.tatk.del.ac.id	8082, 3344,parent,htcp	0	0.0	0.00	0.0	0.00
parent201.tatk.del.ac.id	8080, 3344,parent,htcp	0	0.0	0.00	0.0	0.00

Traffic by peer-to-peer communication

Protocol	Requests	Request %	Traffic volume MB	Volume %	Speed kB/s
Cache Digests	0	0.0	0.00	0.0	0.00
Internet Cache Protocol	0	0.0	0	0.0	0.00

Local Squid disk and memory hit performance

Hit kind	Requests	Request %	Traffic volume MB	Volume %	Speed kB/s
Disk hits	165	0.1	1.9	0.2	1991.37
Memory hits	24558	12.2	279.3	29.8	1411.48

Performance gain

General performance gains
Category	Gain %
Using whole web cache hierarchy	133.96
Fetches through parents	-11.43
All peers	-11.43
Local Squid	35.29
Perfomance gain from each peer
Peer	Gain %
-	-0.00
parent202.tatk.del.ac.id	-7.79
parent201.tatk.del.ac.id	-3.50
Perfomance gain in local Squid
Memory hits in whole performance	34.94

Performance analysis

• hits from peers are slower than total average
• traffic through parents is slower than total average
• traffic through parents is slower than fetches from original servers
• hits from peer - are slower than total average
• hits from peer - are slower than direct fetches
• traffic through parent - is slower than total average
• traffic through parent - is slower than direct fetches
• all fetches from/through peer - are slower than total average
• all fetches from/through peer - are slower than direct fetches
• hits from peer parent202.tatk.del.ac.id are slower than total average
• hits from peer parent202.tatk.del.ac.id are slower than direct fetches
• traffic through parent parent202.tatk.del.ac.id is slower than total average
• traffic through parent parent202.tatk.del.ac.id is slower than direct fetches
• all fetches from/through peer parent202.tatk.del.ac.id are slower than total average
• all fetches from/through peer parent202.tatk.del.ac.id are slower than direct fetches
• hits from peer parent201.tatk.del.ac.id are slower than total average
• hits from peer parent201.tatk.del.ac.id are slower than direct fetches
• traffic through parent parent201.tatk.del.ac.id is slower than total average
• traffic through parent parent201.tatk.del.ac.id is slower than direct fetches
• all fetches from/through peer parent201.tatk.del.ac.id are slower than total average
• all fetches from/through peer parent201.tatk.del.ac.id are slower than direct fetches
• peer - is slowing down traffic by -0.00 percent
• peer parent202.tatk.del.ac.id is slowing down traffic by -7.79 percent
• peer parent201.tatk.del.ac.id is slowing down traffic by -3.50 percent

Analysis performed with /home/a/squeezer.pl v.0.5
by Maciej Kozinski, 

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