DistOS 2015W Session 6 - Revision history

Veenarose: /* OCEAN STORE */

2015-04-12T18:37:04Z

OCEAN STORE

← Older revision		Revision as of 18:37, 12 April 2015
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	==OCEAN STORE==		==OCEAN STORE==
	~~Linc~~ to a mini review on the OceanStore Paper...		Link to a mini review on the OceanStore Paper...

	[http://www.cse.lehigh.edu/~brian/course/advanced-networking/reviews/manura-oceanstore.html]		[http://www.cse.lehigh.edu/~brian/course/advanced-networking/reviews/manura-oceanstore.html]

2015-04-12T18:36:39Z

OCEAN STORE

← Older revision		Revision as of 18:36, 12 April 2015
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	==OCEAN STORE==		==OCEAN STORE==
	~~“OceanStore: An Architecture for Global-Scale Persistent Storage” proposes an architecture for~~ a global, durable, and highly available persistent storage network composed of untrusted servers. Data can migrate and replicate to where it is most needed, thereby having similar benefits to caching. For security, all stored data in encrypted. A type of routing mechanism is needed on ~~top of IP to locate~~ OceanStore ~~data, and this is achieved by two methods: an attenuated Bloom filter (i~~.e. a vector of Bloom filters per node, where each element locates objects at a given graph distance) and, if the previous method fails, a highly redundant version of the Plaxton scheme. Various error-correcting schemes are also used. The network supports a type of introspection, in which the network can automatically tune itself to network conditions. In addition to providing local access to global data, the system is a guard against natural disasters and denial-of-service (DOS) attacks.		Linc to a mini review on the OceanStore Paper...

	[http://www.cse.lehigh.edu/~brian/course/advanced-networking/reviews/manura-oceanstore.html]		[http://www.cse.lehigh.edu/~brian/course/advanced-networking/reviews/manura-oceanstore.html]

2015-04-12T18:35:12Z

FARSITE

← Older revision		Revision as of 18:35, 12 April 2015
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	[http://research.microsoft.com/apps/pubs/default.aspx?id=67917]		[http://research.microsoft.com/apps/pubs/default.aspx?id=67917]

			==OCEAN STORE==
			“OceanStore: An Architecture for Global-Scale Persistent Storage” proposes an architecture for a global, durable, and highly available persistent storage network composed of untrusted servers. Data can migrate and replicate to where it is most needed, thereby having similar benefits to caching. For security, all stored data in encrypted. A type of routing mechanism is needed on top of IP to locate OceanStore data, and this is achieved by two methods: an attenuated Bloom filter (i.e. a vector of Bloom filters per node, where each element locates objects at a given graph distance) and, if the previous method fails, a highly redundant version of the Plaxton scheme. Various error-correcting schemes are also used. The network supports a type of introspection, in which the network can automatically tune itself to network conditions. In addition to providing local access to global data, the system is a guard against natural disasters and denial-of-service (DOS) attacks.

			[http://www.cse.lehigh.edu/~brian/course/advanced-networking/reviews/manura-oceanstore.html]

	==Group 1==		==Group 1==

2015-04-12T18:32:27Z

Midterm

← Older revision		Revision as of 18:32, 12 April 2015
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	The midterm from last year [http://homeostasis.scs.carleton.ca/~soma/distos/2015w/comp4000-2014w-midterm.pdf is now available].		The midterm from last year [http://homeostasis.scs.carleton.ca/~soma/distos/2015w/comp4000-2014w-midterm.pdf is now available].

			==FARSITE==

			Farsite is a secure, scalable file system that logically functions as a centralized file server but is physically distributed among a set of untrusted computers. Farsite provides file availability and reliability through randomized replicated storage; it ensures the secrecy of file contents with cryptographic techniques; it maintains the integrity of file and directory data with a Byzantine-fault-tolerant protocol; it is designed to be scalable by using a distributed hint mechanism and delegation certificates for pathname translations; and it achieves good performance by locally caching file data, lazily propagating file updates, and varying the duration and granularity of content leases. We report on the design of Farsite and the lessons we have learned by implementing much of that design.

			[http://research.microsoft.com/apps/pubs/default.aspx?id=67917]

	==Group 1==		==Group 1==

2015-04-06T04:57:24Z

Group 1

← Older revision		Revision as of 04:57, 6 April 2015
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	! Implementation		! Implementation
	\| Did not mention what programming they used, but it was based on Windows. They did not implement the file system		\| Did not mention what programming they used, but it was based on Windows. They did not implement the file system
	\| Implemented in ~~JAVA~~		\| Implemented in Java
	\|-		\|-
	! Scalability		! Scalability

2015-02-10T03:22:15Z

2015-02-10T03:21:25Z

Group 3

← Older revision		Revision as of 03:21, 10 February 2015
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	'''Team''': DANY, MOE, DEEP, SAMEER, TROY		'''Team''': DANY, MOE, DEEP, SAMEER, TROY


			----
	'''FARSITE'''		'''FARSITE'''

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			----
	'''OCEANSTORE'''		'''OCEANSTORE'''

2015-02-10T03:17:59Z

← Older revision		Revision as of 03:17, 10 February 2015
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	==Group 2==		==Group 2==
	Team ~~Members~~: Apoorv, Ambalica, Ashley, Eric, Mert, Shivjot		'''Team''': Apoorv, Ambalica, Ashley, Eric, Mert, Shivjot

	<table style="width: 100%;" border="1" cellpadding="4" cellspacing="0" class="wikitable">		<table style="width: 100%;" border="1" cellpadding="4" cellspacing="0" class="wikitable">
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	==Group 3==		==Group 3==
	DANY, MOE, DEEP, SAMEER, TROY		'''Team''': DANY, MOE, DEEP, SAMEER, TROY

	'''FARSITE'''		'''FARSITE'''

2015-02-10T03:17:18Z

← Older revision		Revision as of 03:17, 10 February 2015
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	<table style="width: 100%;" border="1" cellpadding="4" cellspacing="0" class="wikitable">		<table style="width: 100%;" border="1" cellpadding="4" cellspacing="0" class="wikitable">
	<tr>		<tr>
	<td><p>Farsite</p></td>		<td><p>'''Farsite'''</p></td>
	<td><p>OceanStore</p></td>		<td><p>'''OceanStore'''</p></td>
	</tr>		</tr>
	<tr>		<tr>
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	</tr>		</tr>
	<tr>		<tr>
	<td><p>Single tier, ~~p2p~~ model</p></td>		<td><p>Single tier, peer to peer model</p></td>
	<td><p>Two tier, server client model</p></td>		<td><p>Two tier, server client model</p></td>
	</tr>		</tr>

2015-02-09T21:54:54Z

Group 2

← Older revision		Revision as of 21:54, 9 February 2015
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	Team Members: Apoorv, Ambalica, Ashley, Eric, Mert, Shivjot		Team Members: Apoorv, Ambalica, Ashley, Eric, Mert, Shivjot

			<table style="width: 100%;" border="1" cellpadding="4" cellspacing="0" class="wikitable">
			<tr>
			<td><p>Farsite</p></td>
			<td><p>OceanStore</p></td>
			</tr>
			<tr>
			<td><p>Implemented Content Leases</p></td>
			<td><p>Update Model handled data consistency, no Leases</p></td>
			</tr>
			<tr>
			<td><p>Single tier, p2p model</p></td>
			<td><p>Two tier, server client model</p></td>
			</tr>
			<tr>
			<td><p>Scope of ten to the five</p></td>
			<td><p>Global Scope (ten to the ten)</p></td>
			</tr>
			<tr>
			<td><p>Cryptographic public, private key security</p></td>
			<td><p>Read and write privileges</p></td>
			</tr>
			<tr>
			<td><p>Randomized data replication</p></td>
			<td><p>Nomadic Data concept</p></td>
			</tr>
			</table>

	==Group 3==		==Group 3==