- Move from core to router, leave stub in core
so it doesn't break compatibility. This removes a
thread in app context and prevents any app context from
running NTP; external clients must use the time
received from the router.
- Increase query interval
clock shifts by partially restarting the router. Also improve
restarts initiated from config.jsp
Tickets #465, #468, #494
* UPnP: Wait for a while to ensure port removal at shutdown or restart
- Implement and call shutdown for BandwidthRefiller
- Implement and register shutdown hook for Timestamper
- Implement and register shutdown hook for Jetty console server
- Fix UPnP-SSDPNotifySocket thread not stopping
- Fix all but one UDP PacketHandler threads not stopping
- getFramedAveragePeerClockSkew() now returns a long (ms);
was a Long (s)
- Implement NTP-style clock slewing so the clock is adjusted
gradually
- Implement clock strata so we prefer better clocks
- Implement a timestamper in the transport so we will periodically
update the clock even if NTP is not working
This allows the router to converge the clock instead of simply
hoping the first connected peer is correct.
- Slow down NTP attempts after several consecutive failures
* Code Janitor time! Many fixes and documenting fixes that should be
done in the future. for the most part, this is a general code cleanup.
* On smaller/embedded systems, the "final" keyword cleanups will have
more of an impact than on larger systems.
* Document missing hashCode() methods.
* Unhide more variables to make code easier to read.
* 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
2005-03-18 jrandom
* Minor tweak to the timestamper to help reduce small skews
* Adjust the stats published to include only the relevent ones
* Only show the currently used speed calculation on the profile page
* Allow the full max # resends to be sent, rather than piggybacking the
RESET packet along side the final resend (duh)
* Add irc.postman.i2p to the default list of IRC servers for new installs
* Drop support for routers running 0.5 or 0.5.0.1 while maintaining
backwards compatability for users running 0.5.0.2.
2005-03-11 jrandom
* Rather than the fixed resend timeout floor (10s), use 10s+RTT as the
minimum (increased on resends as before, of course).
* Always prod the clock update listeners, even if just to tell them that
the time hasn't changed much.
* Added support for explicit peer selection for individual tunnel pools,
which will be useful in debugging but not recommended for use by normal
end users.
* More aggressively search for the next hop's routerInfo on tunnel join.
* Give messages received via inbound tunnels that are bound to remote
locations sufficient time (taking into account clock skew).
* Give alternate direct send messages sufficient time (10s min, not 5s)
* Always give the end to end data message the explicit timeout (though the
old default was sufficient before)
* No need to give end to end messages an insane expiration (+2m), as we
are already handling skew on the receiving side.
* Don't complain too loudly about expired TunnelCreateMessages (at least,
not until after all those 0.5 and 0.5.0.1 users upgrade ;)
* Properly keep the sendBps stat
* When running the router with router.keepHistory=true, log more data to
messageHistory.txt
* Logging updates
* Minor formatting updates
* Filter HTTP response headers in the eepproxy, forcing Connection: close
so that broken (/malicious) webservers can't allow persistent
connections. All HTTP compliant browsers should now always close the
socket.
* Enabled the GZIPInputStream's cache (they were'nt cached before)
* Make sure our first send is always a SYN (duh)
* Workaround for some buggy compilers
* Throttle the number of tunnel rebuilds per minute, preventing CPU
overload under catastrophic failures (thanks Tracker and cervantes!)
* Block the router startup process until we've initialized the clock
* 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!)
* 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.
* (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!)
* 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
* Assure that we quickly fail messages bound for shitlisted peers.
* Address a race on startup where the first peer contacted could hang the
router (thanks Romster!)
* Only whine about an intermittent inability to query the time server once
* Disable the timestamper by default for all applications except the router
(enable via -Dtime.disabled=false)
* Simplify the retrieval of the full destination with text based browsers.
* Bundle the updated wrapper.config and hosts.txt in the i2pupdate.tar.bz2
> Message-ID: <1776.202.37.75.101.1092369510.squirrel@202.37.75.101>
> From: adam@adambuckley.net
> To: jrandom@i2p.net
>
> [...]
>
> I hereby authorize my NtpClient.java and NtpMessage.java code to be
> redistributed under the BSD license for the purpose of integration with
> the I2P project, providing that I am credited as the original author of
> the code.
>
> [...]
w00t! adam++
code migrated into core/java/src/net/i2p/time, integrated with Clock,
dropping that whole ugly pass-the-time-through-URL, and hence dropped
support for :7655/setTime.
New router.config properties to control the timestamper:
time.sntpServerList=pool.ntp.org,pool.ntp.org,pool.ntp.org
time.queryFrequencyMs=300000
time.disabled=false
So, to disable, add time.disabled=true to your router.config. It is
enabled by default.
Default router.config and startup scripts updated accordingly (since
timestamper.jar is now gone)
