* Streaming lib changes to improve upstream performance during congestion:
* Change min window size from 12 to 1
* Change max timeout from 10 to 45 sec
* Change initial timeout from 10 to 15 sec
* Change intial window size for i2psnark from 12 to 1
* Change slow start growth rate for i2psnark from 1/2 to 1
* Implement priority sending for NTCP
* Disable trimForOverload() in tunnel BuildExecutor which
was preventing tunnel builds when outbound traffic was high
(i.e. most of the time when running i2psnark)
* Tell our peers about who we know in the floodfill netDb every
6 hours or so, mitigating the situation where peers lose track
of floodfill routers.
* Disable the Syndie updater (people should use the new Syndie,
not this one)
* Disable the eepsite tunnel by default
* Modify ReseedHandler to query the "i2p.reseedURL" property from I2PAppContext
instead of System, so setting a reseed URL in advanced configuration has effect.
* Clean out obsolete reseed code from ConfigNetHandler.
* i2psnark: More choking rotation tweaks
* Improve performance by not reading in the whole
piece from disk for each request. A huge memory savings
on 1MB torrents with many peers.
* i2psnark: Add 'Stop All' link on web page
* Add some links to trackers and forum on web page
* Don't start tunnel if 'Autostart' unchecked
* Fix torrent restart bug by reopening file descriptors
* i2psnark: Improvements for torrents with > 4 leechers:
choke based on upload rate when seeding, and
be smarter and fairer about rotating choked peers.
* Handle two common i2psnark OOM situations rather
than shutting down the whole thing.
* Fix reporting to tracker of remaining bytes for
torrents > 4GB (but ByteMonsoon still has a bug)
* i2psnark: Fix and enable generation of multifile torrents,
print error if no tracker selected at create-torrent,
fix stopping a torrent that hasn't started successfully,
add eBook and GayTorrents trackers to form,
web page formatting tweaks
* Ensure we get NTP samples from more diverse sources
(0.pool.ntp.org, 1.pool.ntp.org, etc)
* Discard median-based peer skew calculator as framed average works,
and adjusting its percentage can make it behave median-like
* Require more data points (from at least 20 peers)
before considering a peer skew measurement reliable
2006-10-10 jrandom
* Removed the status display from the console, as its more confusing
than informative (though the content is still displayed in the HTML)
* Add a framed average peer clock skew calculator
* Add config property "router.clockOffsetSanityCheck" to determine
if NTP-suggested clock offsets get sanity checked (default "true")
* Reject NTP-suggested clock offsets if they'd increase peer clock skew
by more than 5 seconds, or make it more than 20 seconds total
* Decrease log level in getMedianPeerClockSkew()
* Subclass from Clock a RouterClock which can access router transports,
with the goal of developing it to second-guess NTP results
* Make transports report clock skew in seconds
* Adjust renderStatusHTML() methods accordingly
* Show average for NTCP clock skews too
* Give transports a getClockSkews() method to report clock skews
* Give transport manager a getClockSkews() method to aggregate results
* Give comm system facade a getMedianPeerClockSkew() method which RouterClock calls
(to observe results, add "net.i2p.router.transport.CommSystemFacadeImpl=WARN" to
logging)
* Extra explicitness in NTCP classes to denote unit of time.
* Fix some places in NTCPConnection where milliseconds and seconds were confused
* i2psnark: Paranoid copy before writing pieces,
recheck files on completion, redownload bad pieces
* i2psnark: Don't contact tracker as often when seeding
* i2psnark: Implement retransmission of requests. This
eliminates one cause of complete stalls with a peer.
This problem is common on torrents with a small number of
active peers where there are no choke/unchokes to kickstart things.
* i2psnark: Mark a peer's requests as unrequested on disconnect,
preventing premature end game
* i2psnark: Randomize selection of next piece during end game
* i2psnark: Don't restore a partial piece to a peer that is already working on it
* i2psnark: strip ".torrent" on web page
* i2psnark: Limit piece size in generated torrent to 1MB max
* i2psnark: Fix bug where new peers would always be set to "interested"
regardless of actual interest
* i2psnark: Reduce max piece size from 10MB to 1MB; larger may have severe
memory and efficiency problems
* Tweak the PRNG logging so it only displays error messages if there are
problems
* Disable dynamic router keys for the time being, as they don't offer
meaningful security, may hurt the router, and makes it harder to
determine the network health. The code to restart on SSU IP change is
still enabled however.
* Disable tunnel load testing, leaning back on the tiered selection for
the time being.
* Spattering of bugfixes
* i2psnark: Implement basic partial-piece saves across connections
* i2psnark: Implement keep-alive sending. This will keep non-i2psnark clients
from dropping us for inactivity but also renders the 2-minute transmit-inactivity
code in i2psnark ineffective. Will have to research why there is transmit but
not receive inactivity code. With the current connection limit of 24 peers
we aren't in any danger of keeping out new peers by keeping inactive ones.
* i2psnark: Increase CHECK_PERIOD from 20 to 40 since nothing happens in 20 seconds
* i2psnark: Fix dropped chunk handling
* i2psnark: Web rate report cleanup
* i2psnark: Report cleared trackerErr immediately
* i2psnark: Add trackerErr reporting after previous success; retry more quickly
* i2psnark: Set up new connections more quickly
* i2psnark: Don't delay tracker fetch when setting up lots of connections
* i2psnark: Reduce MAX_UPLOADERS from 12 to 4
