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catbref 7a53ac17a6 Synchronization, peer management + fixes
Peers now broadcast height after successful synchronization.

Added support for sending unconfirmed transactions to other peers.
This is done on connect and also after a new unconfirmed transaction is submitted via API.

Fixed synchronizer to handle blocks with transactions correctly.

Fixed network-related PoW to not use class-global SHA256 message digester!
(It was being corrupted by simulataneous access by different threads - whoops)

Surrounded Network.mergePeers with a lock to prevent HSQLDB deadlocks.
Also changed HSQLDB concurrency model to MVCC (only takes effect if DB rebuilt).

Added support for logging other HSQLDB sessions in the event of exception.
(Currently only used by HSQLDBSaver)

Transaction transformer modifications to help deserialize TransactionMessages.
2019-02-11 17:37:52 +00:00
.settings Unify API calls that return lists + offload pagination to repository 2019-01-24 16:42:55 +00:00
lib/org Files missing from previous commit (somehow) 2018-12-03 13:12:52 +00:00
src Synchronization, peer management + fixes 2019-02-11 17:37:52 +00:00
.classpath Interim networking code commit in case of dev catastrophe! 2019-01-30 18:24:10 +00:00
.gitignore Transaction-specific info in API results 2018-12-13 08:44:50 +00:00
.project initial work towards OSGi 2019-01-04 10:19:33 +00:00
blockchain.json API, switchable MD160, 2019-01-07 13:12:42 +00:00
log4j2.properties Networking and repository 2019-02-01 14:03:06 +00:00
osgi-console.sh initial work towards OSGi 2019-01-04 10:19:33 +00:00
pom.xml Networking and repository 2019-02-01 14:03:06 +00:00
README.md Unit test fixes + initial CIYAM AT integration 2018-10-04 14:38:59 +01:00
settings.json FATJAR packaging + block explorer changes 2018-12-05 11:32:55 +00:00

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.