/[gzz]/manuscripts/storm/short-paper.rst
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revision 1.13 by benja, Fri May 30 01:23:08 2003 UTC revision 1.14 by benja, Fri May 30 01:44:26 2003 UTC
# Line 14  links break when documents are moved aro Line 14  links break when documents are moved aro
14     useful on the local desktop.     useful on the local desktop.
15    
16  We propose Storm, a storage system for use both on the  We propose Storm, a storage system for use both on the
17  desktop and the public network. Storm assigns a document  desktop and the public network. Storm assigns each document
18  a permanent URI when it is created. Using peer-to-peer  a permanent URI when it is created. Using peer-to-peer
19  technology, we can find documents even though our URIs  technology, we can find documents even though our URIs
20  do not include location information.  do not include location information.
# Line 58  with more in-depth information. Line 58  with more in-depth information.
58  .. links needed that don't break when documents are moved:  .. links needed that don't break when documents are moved:
59    
60  A major obstacle to hypermedia  A major obstacle to hypermedia
61  on the desktop is breaking links. A user receiving  on the desktop is broken links. A user receiving
62  hyperlinked documents would have to reconstruct  hyperlinked documents by email, for example, would have to reconstruct
63  the original directory structure; otherwise the links  the original directory structure; otherwise the links
64  won't work.  won't work.
65    
# Line 110  is not possible on a global scale. Line 110  is not possible on a global scale.
110    
111  However, recent developments in peer-to-peer systems have  However, recent developments in peer-to-peer systems have
112  rendered this assumption obsolete. Distributed hashtables (DHTs)  rendered this assumption obsolete. Distributed hashtables (DHTs)
113  [malkhi02viceroy-andalso-maymounkov02kademlia-andalso-ratnasamy01can-andalso-rowston01pastry-andalso-stoica01chord-andalso-zhao01tapestry]_  [malkhi02viceroy-andalso-maymounkov02kademlia-andalso-ratnasamy01can-andalso-stoica01chord-andalso-zhao01tapestry]_
114  allow location-independent identifiers  allow location-independent identifiers
115  to be resolved on a global scale.  to be resolved on a global scale.
116    
117  .. can be used to implement external links, backlinks &c:  .. can be used to implement external links, backlinks &c:
118    
119  DHTs can not only be used to efficiently retrieve documents  DHTs can not only be used to efficiently retrieve documents,
120  given their location-independent identifier, but also  but also metadata *about* documents. For example,
 to retrieve metadata about the documents. For example,  
121  unlike many link services that only query a limited  unlike many link services that only query a limited
122  set of servers for links [hill94extending]_,  set of servers for links [hill94extending]_,
123  all external links to a document can be found using  all published external links to a document can be found using
124  a DHT.  a DHT.
125    
126  .. contribution of this paper:  .. contribution of this paper:
127    
128  This document describes Storm, a library for  This paper describes Storm, a library for
129  storing and retrieving data using  storing and retrieving data using
130  location-independent URIs.  location-independent URIs.
131    
# Line 141  documents on the desktop and publishing Line 140  documents on the desktop and publishing
140  documents from the network.  documents from the network.
141  Our system, Storm (for STORage Modules),  Our system, Storm (for STORage Modules),
142  uses Freenet-like cryptographic identifiers.  uses Freenet-like cryptographic identifiers.
   
143  On the user level, Storm could be used as a  On the user level, Storm could be used as a
144  replacement for both file names and HTTP URLs  replacement for both file names and HTTP URLs
145  as document identifiers (although our implementation  as document identifiers.
 uses both files and HTTP internally).  
146    
147  .. part of the web -- URN scheme (so far experimental,  .. part of the web -- URN scheme (so far experimental,
148     targetting registration):     targetting registration):
# Line 162  Browsers and applications can access Sto Line 159  Browsers and applications can access Sto
159  by using the Java library directly or through an  by using the Java library directly or through an
160  HTTP gateway, which, given a Storm URN, finds and  HTTP gateway, which, given a Storm URN, finds and
161  returns the associated file. Documents can be  returns the associated file. Documents can be
162  uploaded into Storm using HTTP PUT operations  uploaded into Storm using HTTP PUT.
 on the gateway.  
163    
164  .. Applications we are integrated with:  .. Applications we are integrated with:
165    
# Line 181  The Emacs text editor doesn't understand Line 177  The Emacs text editor doesn't understand
177  URNs yet, but can load and save documents using  URNs yet, but can load and save documents using
178  Storm through the HTTP gateway. OpenOffice.org  Storm through the HTTP gateway. OpenOffice.org
179  can load documents through the HTTP gateway,  can load documents through the HTTP gateway,
180  but cannot save to it, because the gateway  but cannot save changes, because the gateway
181  does not support WebDAV (HTTP-based distributed  does not yet support WebDAV (HTTP-based distributed
182  authoring and versioning).  authoring and versioning).
183    
184  .. web interface for searching etc.  .. web interface for searching etc.
# Line 211  A distributed hashtable is used to find Line 207  A distributed hashtable is used to find
207  While the core of Storm has been in use for almost  While the core of Storm has been in use for almost
208  three years, the peer-to-peer subsystem has only recently  three years, the peer-to-peer subsystem has only recently
209  been implemented.  been implemented.
   
210  Currently, a number of systems can use Storm  Currently, a number of systems can use Storm
211  through the HTTP gateway. A next step will be  through an HTTP gateway.
212  WebDAV support, allowing many more systems to  
213  save data in Storm.  .. A next step will be
214       WebDAV support, allowing many more systems to
215       save data in Storm.
216    
217  Storm can also be used to implement the more ambitious  Storm can also be used to implement the more ambitious
218  Xanalogical hypertext model [#]_ [lukka02guids]_.  Xanalogical hypertext model [#]_ [lukka02guids]_.

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