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catbref 4c6656dd17 New synchronizer and other improvements
API call GET /addresses/online reports online accounts,
including both addresses relating to the proxy-forge public key.

New PeerChainTipData class to replace the broken "peer data lock"
that was supposed to make sure peer's last height/blockSig/timestamp
were all in sync. Now peer's chain tip data is a single object
reference that can be replaced in one go.

Removed pointless API calls /blocks/time and /blocks/{generatingbalance}.

Various changes, mostly in Block class, to do with switching to BlockTimingByHeight
from old min/max block time.

New block 'weight' based on number of online accounts
and 'distance' of perturbed generator public key from 'ideal' public key
(for that particular block's height).

New sub-chain 'weight' based on accumulating block weights,
currently by shifting previous accumulator left by 8 bits then
adding next block's weight.

More validation of BlockChain config. Helpful for debugging, probably
not very useful to end-users.

BlockGenerator now uses unified Peer predicates from Controller, like:
Controller.hasMisbehaved, Controller.hasNoRecentBlock, etc.

Controller now keeps a list of chain-tip signatures that are for inferior
chains, so it doesn't try to synchronize with peers with inferior chains.
(This list is wiped when node's blockchain changes/block is generated).

Controller now asks Gui to display error box if it can't parse Settings.

Controller.potentiallySynchronize() does more filtering of potential peers
before calling actuallySynchronize(). (Mostly moved from Synchronizer,
so now we expect actuallySynchronize() to do something rather than bail
out because it doesn't like the peer after all).

If synchronization discovers that peer has an inferior chain,
then Controller notifies that peer of our superior chain, to help keep
the network in sync.

Renamed OnlineAccount to OnlineAccountData, as it is in package org.qora.data
after all...

Synchronizer reworked to request block summaries so it can judge which chain
is better, and hence whether to sync with peer or abort.

Slight optimization of Peer.readChannel() to exit earlier if no more network
messages can be extracted from buffer.

More tests.
Improved documentation and logging.
2019-09-26 17:43:50 +01:00
lib/org/ciyam/at Bump HSQLDB from svn r5970 to release v2.5.0 2019-08-02 13:05:18 +01:00
src New synchronizer and other improvements 2019-09-26 17:43:50 +01:00
.gitignore Added settings.json to gitignore 2019-08-02 14:07:12 +01:00
log4j2.properties Fix up after epic git history rebuild due to LFS issue 2019-08-13 10:27:28 +01:00
pom.xml Modify pom.xml for Qortal & add ConciseSet 2019-09-13 14:32:32 +01:00
README.md Unit test fixes + initial CIYAM AT integration 2018-10-04 14:38:59 +01:00

Qora2

To use:

  • Use maven to fetch dependencies.
  • Build project.
  • Build v1feeder.jar as a fatjar using src/v1feeder.java as the main class
  • Fire up an old-gen Qora node.
  • Use v1feeder.jar to migrate old Qora blocks to DB:

java -jar v1feeder.jar qora-v1-node-ip

You should now be able to run all the JUnit tests.

You can also examine the migrated database using HSQLDB's "sqltool".

It's a good idea to install "rlwrap" (ReadLine wrapper) too as sqltool doesn't support command history/editing!

Typical command line for sqltool would be:

rlwrap java -cp ${HSQLDB_JAR}:${SQLTOOL_JAR} org.hsqldb.cmdline.SqlTool --rcFile=${SQLTOOL_RC} qora

${HSQLDB_JAR} contains pathname to where Maven downloaded hsqldb, typically ${HOME}/.m2/repository/org/hsqldb/hsqldb/2.4.0/hsqldb-2.4.0.jar, but for now lib/org/hsqldb/hsqldb/r5836/hsqldb-r5836.jar

${SQLTOOL_JAR} contains pathname to where Maven downloaded sqltool, typically ${HOME}/.m2/repository/org/hsqldb/sqltool/2.4.1/sqltool-2.4.1.jar

${SQLTOOL_RC} contains pathname to a text file describing Qora2 database, e.g. ${HOME}/.sqltool.rc, with contents like:

urlid qora
url jdbc:hsqldb:file:db/qora
username SA
password

urlid qora-test
url jdbc:hsqldb:file:db/test
username SA
password

You could change the line url jdbc:hsqldb:file:db/test to use a full pathname for easier use.

Another idea is to assign a shell alias in your .bashrc like:

export HSQLDB_JAR=${HOME}/.m2/repository/org/hsqldb/hsqldb/2.4.0/hsqldb-2.4.0.jar
export SQLTOOL_JAR=${HOME}/.m2/repository/org/hsqldb/sqltool/2.4.1/sqltool-2.4.1.jar
alias sqltool='rlwrap java -cp ${HSQLDB_JAR}:${SQLTOOL_JAR} org.hsqldb.cmdline.SqlTool --rcFile=${SQLTOOL_RC}'

So you can simply type: sqltool qora-test

Don't forget to use SHUTDOWN; before exiting sqltool so that database files are closed cleanly.