* Further streaming lib caching improvements
* Reduce the minimum RTT (used to calculate retry timeouts), but also
increase the RTT on resends.
* Lower the default message size to 4KB from 16KB to further reduce the
chance of failed fragmentation.
* Extend tunnel rebuild throttling to include fallback rebuilds
* If there are less than 20 routers known, don't drop the last 20 (to help
avoid dropping all peers under catastrophic failures)
* New stats for end to end messages - "client.leaseSetFoundLocally",
"client.leaseSetFoundRemoteTime", and "client.leaseSetFailedRemoteTime"
* Cache temporary memory allocation in the DSA's SHA1 impl, and the packet
data in the streaming lib.
* Fixed a streaming lib bug where the connection initiator would fail the
stream if the ACK to their SYN was lost.
* Reworked the tunnel (re)building process to remove the tokens and
provide cleaner controls on the tunnels built.
* Fixed situations where the timestamper wanted to test more servers than
were provided (thanks Tracker!)
* Get rid of the dead SAM sessions by using the streaming lib's callbacks
(thanks Tracker!)
* Temporary workaround for the I2CP disconnect bug (have the streaminglib
try to automatically reconnect on accept()/connect(..)).
* Loop check for expired lease republishing (just in case)
* Adjusted (and fixed...) the timestamper change detection
* Deal with a rare reordering bug at the beginning of a stream (so we
don't drop it unnecessarily)
* Cleaned up some dropped message handling in the router
* Reduced job queue churn when dealing with a large number of tunnels by
sharing an expiration job
* Keep a separate list of the most recent CRIT messages (shown on the
logs.jsp). This way they don't get buried among any other messages.
* For clarity, display the tunnel variance config as "Randomization" on
the web console.
* If lease republishing fails (boo! hiss!) try it again
* Actually fix the negative jobLag in the right place (this time)
* Allow reseeding when there are less than 10 known peer references
* Lots of logging updates.
* Allow the streaming lib resend frequency to drop down to 20s as the
minimum, so that up to 2 retries can get sent on an http request.
* Add further limits to failsafe tunnels.
* Keep exploratory and client tunnel testing and building stats separate.
* Only use the 60s period for throttling tunnel requests due to transient
network overload.
* Rebuild tunnels earlier (1-3m before expiration, by default)
* Cache the next hop's routerInfo for participating tunnels so that the
tunnel participation doesn't depend on the netDb.
* Fixed a long standing bug in the streaming lib where we wouldn't always
unchoke messages when the window size grows.
* Make sure the window size never reaches 0 (duh)
* Only build new extra tunnels on failure if we don't have enough
* Fix a fencepost in the tunnel building so that e.g. a variance of
2 means +/- 2, not +/- 1 (thanks dm!)
* Avoid an NPE on client disconnect
* Never select a shitlisted peer to participate in a tunnel
* Have netDb store messages timeout after 10s, not the full 60s (duh)
* Keep session tags around for a little longer, just in case (grr)
* Cleaned up some closing event issues on the streaming lib
* Stop bundling the jetty 5.1.2 and updated wrapper.config in the update
so that 0.4.* users will need to do a clean install, but we don't need
to shove an additional 2MB in each update to those already on 0.5.
* Imported the susimail css (oops, thanks susi!)
* Added some error handling when the number of session tags exceeds the
realistic capacity, dropping a random chunk of received tag sets and
conducting some minor analysis of the remaining ones. This is a part
of a pretty serious error condition, and logs as CRIT (if/when people
see "TOO MANY SESSION TAGS!", please let me know the full log line it
puts in the wrapper.log or /logs.jsp)
* Update the addressbook to only write to the published hosts location
if the addressbook's config contains "should_publish=true" (by default,
it contains "should_publish=false")
* (Merged the 0.5-pre branch back into CVS HEAD)
* Replaced the old tunnel routing crypto with the one specified in
router/doc/tunnel-alt.html, including updates to the web console to view
and tweak it.
* Provide the means for routers to reject tunnel requests with a wider
range of responses:
probabalistic rejection, due to approaching overload
transient rejection, due to temporary overload
bandwidth rejection, due to persistent bandwidth overload
critical rejection, due to general router fault (or imminent shutdown)
The different responses are factored into the profiles accordingly.
* Replaced the old I2CP tunnel related options (tunnels.depthInbound, etc)
with a series of new properties, relevent to the new tunnel routing code:
inbound.nickname (used on the console)
inbound.quantity (# of tunnels to use in any leaseSets)
inbound.backupQuantity (# of tunnels to keep in the ready)
inbound.length (# of remote peers in the tunnel)
inbound.lengthVariance (if > 0, permute the length by adding a random #
up to the variance. if < 0, permute the length
by adding or subtracting a random # up to the
variance)
outbound.* (same as the inbound, except for the, uh, outbound tunnels
in that client's pool)
There are other options, and more will be added later, but the above are
the most relevent ones.
* Replaced Jetty 4.2.21 with Jetty 5.1.2
* Compress all profile data on disk.
* Adjust the reseeding functionality to work even when the JVM's http proxy
is set.
* Enable a poor-man's interactive-flow in the streaming lib by choking the
max window size.
* Reduced the default streaming lib max message size to 16KB (though still
configurable by the user), also doubling the default maximum window
size.
* Replaced the RouterIdentity in a Lease with its SHA256 hash.
* Reduced the overall I2NP message checksum from a full 32 byte SHA256 to
the first byte of the SHA256.
* Added a new "netId" flag to let routers drop references to other routers
who we won't be able to talk to.
* Extended the timestamper to get a second (or third) opinion whenever it
wants to actually adjust the clock offset.
* Replaced that kludge of a timestamp I2NP message with a full blown
DateMessage.
* Substantial memory optimizations within the router and the SDK to reduce
GC churn. Client apps and the streaming libs have not been tuned,
however.
* More bugfixes thank you can shake a stick at.
2005-02-13 jrandom
* Updated jbigi source to handle 64bit CPUs. The bundled jbigi.jar still
only contains 32bit versions, so build your own, placing libjbigi.so in
your install dir if necessary. (thanks mule!)
* Added support for libjbigi-$os-athlon64 to NativeBigInteger and CPUID
(thanks spaetz!)
* Initial check-in of Pants, a new utility to help us manage our 3rd-party
dependencies (Fortuna, Jetty, Java Service Wrapper, etc.). Some parts of
Pants are still non-functional at this time so don't mess with it yet
unless you want to potentially mangle your working copy of CVS.
* Added a couple of scripts, i2ptest.sh and i2pbench.sh, to manage the core
tests and benchmarks.
* Routerconsole now builds under gcj 3.4.3.
* Corrected divide by zero error in TunnelId class under gcj (jrandom++).
* C#-ification of sam-sharp: interface greatly simplified using delegates
and events; SamBaseEventHandler provides basic implementation and helper
methods but is now optional.
* NAnt buildfile and README added for sam-sharp.
* Port the java SAM client library to mono/C# and released into the
public domain. The 0.1 version of this port is available in CVS as
i2p/apps/sam/csharp/src/I2P.SAM.Client. The other nonfunctional C#
library has been removed.
* Added meaningful support for adjusting the preferred message size in the
streaming lib by setting the i2p.streaming.maxMessageSize=32768 (or
whatever). The other side will mimic a reduction (but never an increase).
* Always make sure to use distinct ConnectionOption objects for each
connection (duh)
* Reduced the default ACK delay to 500ms on in the streaming lib
* Only shrink the streaming window once per window
* Don't bundle a new jetty.xml with updates
* Catch another local routerInfo corruption issue on startup.
* Caught a series of (previously unhandled) errors caused by requeueing
messages that had timed out on the TCP transport (thanks mae^!)
* Reduce the barrier to dropping session tags on streaming lib resends -
every fourth send should drop the tags, forcing ElGamal encryption. This
will help speed up the recovery after a disconnect, rather than the drop
every fifth send.
2005-01-06 jrandom
* Added a startup message to the addressbook, printing its version number
to stdout (which is sent to wrapper.config) when it loads.
* Updated the addressbook to reread the config file periodically
* Added orion.i2p to the list of eepsites on the default homepage
* Handle unexpected network read errors more carefully (thanks parg!)
* Added more methods to partially compare (DataHelper) and display
arrays (Base64.encode).
* Exposed the AES encryptBlock/decryptBlock on the context.aes()
* Be more generous on the throttle when just starting up the router
* Fix a missing scheduled event in the streaming lib (caused after reset)
* Add a new DisconnectListener on the I2PSocketManager to allow
notification of session destruction.
* Make sure our own router identity is valid, and if it isn't, build a new
one and restart the router. Alternately, you can run the Router with
the single command line argument "rebuild" and it will do the same.
* Integrated latest addressbook changes (2.0.3) which include support for
deploying as a .war file with no existing addressbook configuration.
* Updated main build process to bundle the addressbook.war in the
i2pinstall.jar and i2pupdate.zip.
* Speling fxi (thanks digum!)
* Bugfix for the I2PTunnel web interface so that it now properly launches
newly added tunnels that are defined to be run on startup (thanks ugha!)
* Revised the I2PTunnel client and httpclient connection establishment
throttles. There is now a pool of threads that build the I2PSocket
connections with a default size of 5, configurable via the I2PTunnel
client option 'i2ptunnel.numConnectionBuilders' (if set to 0, it will
not throttle the number of concurrent builders, but will launch a thread
per socket during establishment). In addition, sockets accepted but
not yet allocated to one of the connection builders will be destroyed
after 30 seconds, configurable via 'i2ptunnel.maxWaitTime' (if set to
0, it will wait indefinitely).
* Cleaned up the resending and choking algorithm in the streaming lib.
* Removed the read timeout override for I2PTunnel's httpclient, allowing
it to use the default for the streaming lib.
* Revised ack triggers in the streaming lib.
* Logging.
* Cleaned up the postinstall/startup scripts a bit more to handle winME,
and added windows info to the headless docs. (thanks ardvark!)
* Fixed a harmless (yet NPE inspiring) race during the final shutdown of
a stream (thanks frosk!)
* Add a pair of new stats for monitoring tunnel participation -
tunnel.participatingBytesProcessed (total # bytes transferred) and
tunnel.participatingBytesProcessedActive (total # bytes transferred for
tunnels whose byte count exceed the 10m average). This should help
further monitor congestion issues.
* Made the NamingService factory property public (thanks susi!)
* Added a new i2ptunnel type: 'httpserver', allowing you to specify what
hostname should be sent to the webserver. By default, new installs will
have an httpserver pointing at their jetty instance with the spoofed
name 'mysite.i2p' (editable on the /i2ptunnel/edit.jsp page).
* Catch another oddball case for a reset connection in the streaming lib.
* Add a dumpprofile.jsp page, called with ?peer=base64OfPeerHash, which
dumps the current state of that peer's profile. Instead of the full
base64, you can pass in however many characters you have and it will
return the first match found.
* Handle hard disconnects more gracefully within the streaming lib, and
log unmonitored events more aggressively.
* If we drop a peer after connection due to clock skew, log it to the
/logs.jsp#connectionlogs with relevent info. In addition, toss it in
the stat 'tcp.disconnectAfterSkew'.
* Fixed the formatting in the skew display
* Added an ERROR message that is fired once after we run out of
routerInfo files (thanks susi!)
* Set the connect timeout equal to the streaming lib's disconnect timeout
if not already specified (the I2PTunnel httpclient already enforces a
60s connect timeout)
* Fix for another connection startup problem in the streaming lib.
* Fix for a stupid error in the probabalistic drop (rand <= P, not > P)
* Adjust the capacity calculations so that tunnel failures alone in the
last 10m will not trigger a 0 capacity rank.
* Reenable the probabalistic drop on the TCP queues to deal with good old
fashioned bandwidth limiting. However, by default the probability is
rigged to reserve 0% of the queue free - meaning we just aggressively
fail messages in the queue if we're transferring too slowly. That
reservation factor can be increased with 'tcp.queueFreeFactor=0.25'
(or whatever) and the drop code can be disabled with the parameter
'tcp.dropProbabalistically=false'.
* Still penalize a peer on tunnel failure, but don't immediately drop
their capacity to 0.
* More aggressively ACK duplicates
* Randomize the timestamper period
* Display the clock skew on the connection logs when a peer sends it.
* Allow the timestamper to fix skews of up to 10 minutes
* Logging
