-Implementable right now (but not necessarily important), with caveats
-(unavailable components that will limit what can be implemented right
-away), in order in which they will likely be done:
-* TESTING [Nate]
-* DV [Nate]
-* DHT [Nate]
-* TBENCH [MW]
-* TRACEKIT [MW]
-* FRAGMENTATION [Ji Lu]
-* HTTP transport [Matthias]
-* UPNP [Milan]
-* ARM [Safey]
-* FS [CG]
-* SETUP
-* MySQL / Postgres plugins (datastore, datacache)
-
-0.9.0pre0 [April]:
-* CORE: [CG]
- - "Forcing disconnect of XXX due to inactivity" -- can happen every few MS!?
- (disconnect does not really succeed, or what?)
- Also, core does not seem to actually decrement the number of active
- sessions even if no connections exist for a while! (likely related...)
- - transport reports bw quota violations on slow systems (core or
- transport issue? tracking issue or actual violation?)
-* DATASTORE: [CG]
- - utilization can (easily, restart?) go out of control (very large), causing
- content expiration job to go crazy and delete everything!
+0.9.0pre1:
+* MIGRATION [CG]
+ - on-demand encoding => move logic to block-library!?
+ - peer selection => how to consider latency/bw/etc?
+ - content transmission => how often the same block?
+ - how to select delay before next migration?
+ - migration to us
+ - testing
+ - integrate with FS or not? (peer list, index/on-demand encoding, block code,
+ inbound priority assignment; all would be easier with tight integration!)
* FS: [CG]
- - on some systems, keyword search does not find locally published content
- (need testcase of command-line tools! - also good to cover getopt API!)
- [could be related to datastore issue above!]
- - 2-peer download is still too slow (why?)
- - advanced FS API parts
- + support recursive download even if filename is NULL and we hence
- do not generate files on disk (use temp_filename)
- + bound parallelism (# fs downloads)
- + distinguish in performance tracking and event signalling between
- downloads that are actually running and those that are merely in the queue
- + gnunet-service-fs (hot-path routing, load-based routing, nitpicks)
+ - gnunet-service-fs (hot-path routing, load-based routing, nitpicks)
- [gnunet-service-fs.c:208]: member 'LocalGetContext::results_bf_size' is never used
- [gnunet-service-fs.c:501]: member 'PendingRequest::used_pids_size' is never used
- [gnunet-service-fs.c:654]: member 'ConnectedPeer::last_client_replies' is never used
- [gnunet-service-fs.c:688]: member 'ConnectedPeer::pending_requests' is never used
- [gnunet-service-fs.c:694]: member 'ConnectedPeer::last_p2p_replies_woff' is never used
- [gnunet-service-fs.c:700]: member 'ConnectedPeer::last_client_replies_woff' is never used
-* WWW:
- - Get IPv6 hooked up
- - change DNS
-
-0.9.0pre1:
-* PEERINFO:
- - trust: need *fast* way to check/update trust in peers
- (async peerinfo would not be right; certainly not with the
- current API)
-* UTIL:
- - scheduler should change OS process priority based on task priority;
- should make better use of task priorities in general
- - only connect() sockets that are ready (select()) [Nils]
- [On W32, we need to select after calling socket before
- doing connect etc.]
-* HELLO: [CG]
- - need function to test "equivalency" of HELLOs (or integrate with "merge"?); use in PEERINFO
-* SETUP:
- - design & implement new setup tool
+ - GAP improvements:
+ + active reply route caching design & implementation of service; gap extension!
* TBENCH: [MW]
- good to have for transport/DV evaluation!
* DV: [Nate]
- - write DV API
- - implement DV service
- - implement DV library
+ - write DV API (need to move declarations from dv_api.c to gnunet_dv_service.h!)
+ - implement DV service
+ - implement DV library (looks done)
- implement DV transport plugin
- implement testcases
- - implement performance tests
-* STATISTICS:
- - does not seem to work with timeouts (especially if service is not running)
+ - implement performance tests (needs tbench)
* TOPOLOGY:
- - needs more testing (especially F2F topology)
- - needs to re-try connecting after disconnect (currently, it
- initially triggers a connection request, but if that connection
- fails / goes down, it does not retry in a timely fashion;
- cause seems to be the 'blacklist_after_attempt' being set to 1h,
- which is rather long -- and should probably be adjusted based on
- the number of connections / known peers)
- - If the topology daemon crashes, peers that were put on the
- blacklist with transport will never be removed from it (until
- transport service dies); we should use the blacklist notification
- API to learn about the exact set of blacklisted peers at all times
- (FIXME: the transport_api implementation of blacklisting
- also does not work nicely for this since it won't let us know about
- disconnect-reconnect events and the implicit whitelisting
- that might happen here; that's not so bad since we will
- re-blacklist on pre-connect attempts anyway, so this is
- a minor issue; OTOH, we might want to be more explicit about
- allowing/forbidding connects on pre-connect to avoid
- entering connect attempts to just be blacklisted shortly afterwards).
- - the code uses the term 'blacklist' for both peers that are forbidden
- to connect (i.e. F2F mode) as well as peers that we currently
- won't try to actively connect to ourselves (since we just tried);
- This is confusing. We need two distinct terms (greylist?).
- - move code to use hash table instead of linked list
- - instead of periodically discarding blacklisted entries,
- simply add task that is triggered at the right time (earlier free,
- more balanced load)
- - check if new HELLO learned is different from old HELLO
- before resetting entire state!
-* FS: [CG]
- - datastore reservation (publishing)
- - search: availability probes
- - persistence support (publish, unindex, search, download)
- - active migration support (in fs or in datastore or new daemon?)
- - GAP improvements:
- + active reply route caching design & implementation of service; gap extension!
+ - needs more testing (especially F2F topology) & transport blacklisting
+* UTIL:
+ - only connect() sockets that are ready (select()) [Nils]
+ [On W32, we need to select after calling socket before doing connect etc.]
* GNUNET-GTK:
- - how to integrate scheduler with GTK event loop!?
+ - use g_main_context_set_poll_func to integrate GTK with GNUnet Scheduler!? (YUCK!)
+ - OR: add scheduler API to enable integration with GTK main loop instead of doing our own select
+ - use g_main_context_pending, g_main_context_query / g_main_context_check / g_main_context_dispatch
+ and NEVER g_main_loop_run (can this be done? might be the clean way to do this! But how
+ to integrate this with "gtk_main"? Docu says:
+ "It's OK to use the GLib main loop directly instead of gtk_main(), though it involves
+ slightly more typing. See GMainLoop in the GLib documentation."
+ => so maybe it "just works"?
+* SETUP:
+ - design & implement new setup tool
0.9.0pre2:
* TRACEKIT: [MW]
- good to have for DV/DHT evaluation!
* DHT: [Nate]
- - implement DHT service (needs DV, DATACACHE)
- - implement DHT library
+ - implement DHT service
- implement testcases
- implement performance tests
* TRANSPORT:
debug output, detect random vs. deterministic crashes)
- shutdown sequence?
* FS: [CG]
+ - datastore reservation (publishing)
- location URIs (publish, search, download)
+ - unindex on index failure
+ - utilize in-line files in meta data always (including in search results or
+ when download is triggered manually and for probes); currently the data is
+ only used when users do a general 'recursive' download
- non-anonymous FS service (needs DHT)
+ DHT integration for search
+ CS-DHT-functions (DHT-put of LOC)
+ download
+ search
+ unindex
+* MIGRATION:
+ - improved content selection (not just 'get_random')
0.9.0pre3:
* Determine RC bugs and fix those!
* MYSQL database backends: [CG]
- datacache
- datastore
+* FS:
+ - reconstruct IBLOCKS from DBLOCKS if possible (during download; see FIXME in fs_download)
+ - add support for pushing "already seen" search results to FS service for bloomfilter (can wait)
+ - use different 'priority' for probe downloads vs. normal downloads
0.9.0:
* new webpage:
- convert documentation pages to books
- update books (especially for developers)
- create good Drupal theme for GNUnet
- - make a NICE download page and figure out how to
- enable developers to publish TGZs nicely
+ - make a NICE download page and figure out how to enable developers to publish TGZs nicely
- port "contact" page
- add content type for "todo" items?
* POSTGRES database backends: [CG]
(Note: build library always, build service when libxml2/etc. are available)
* FS: [CG]
- Remove KBlocks in gnunet-unindex (see discussion with Kenneth Almquist on gnunet-devs in 9/2009)
- - Allow checking of presence of search results and/or content via command-line tools
- (add options to gnunet-search / gnunet-download to limit search to local peer)
* PEERINFO: [CG]
- expire 'ancient' HELLOs (those without valid addresses AND that
we have not 'used' (for their public keys) in a while; need a way
Optimizations:
* TCP:
- should use hash map to look up sessions
-* PEERINFO:
- - api creates many, many short-lived TCP connections; either some
- clients should use the API differently or we need to change the
- API to enable re-use of connections to the service
* STATISTICS:
- should use BIO instead of mmap
* TRANSPORT:
- need to periodically probe latency/transport cost changes & possibly switch transport
- - instantly filter addresses from *other* peers that
- are *equal* to our own address + port (i.e., localhost:2086). We
- no longer filter those for outgoing (helps with loopback testing
- and keeps the code clean), but we should filter strictly *impossible*
- incoming addresses! This is for efficiency, not correctness.
- - should use hash map to look up Neighbours
-* HOSTLIST:
- - 'server' uses 'GNUNET_PEERINFO_iterate', should probably switch to notification API
- (for more instant / up-to-date hostlists at lower cost) [OPTIMIZATION]
+ - should use hash map to look up Neighbours (service AND plugins!)
+* DATASTORE (?):
+ - check for duplicates on insertion (currently, same content is frequently
+ stored again [seen with KBLOCKS and SBLOCKS]!)
+* PEERINFO:
+ - merge multiple HELLOs of the same peer in the transmission queue
+ (theoretically reduces overhead; bounds message queue size)
+ - merge multiple iteration requests over "all" peers in the queue
+ (theoretically reduces overhead; bounds messgae queue size)
+* FS:
+ - use different queue prioritization for probe-downloads vs. normal downloads (!?)
Minor features:
* TCP:
- [./transport/plugin_transport_tcp.c:391]: (style) struct or union member 'Plugin::address_update_task' is never used (related to issue above)
* TRANSPORT:
- [./transport/gnunet-service-transport.c:173]: (style) struct or union member 'TransportPlugin::rebuild' is never used (related to TCP not refreshing external addresses?)
-* DATACACHE:
- - add stats (# bytes available, # bytes used, # PUTs, # GETs, # GETs satisfied)
-* FS:
- - support inline data in directories for recursive file downloads (fs_download)
+* BLOCKS:
+ - testcase would be nice...
projects / oweals / gnunet.git / blobdiff