7b51b1e88d
Network.shutdown() called Peer.shutdown() on each Peer while holding synchronization lock on this.connectedPeers. This would cause a problem during Peer.shutdown() as some other reachable code would also want synchronized access to this.connectedPeers. Typical symptoms would be log entries like: 2019-07-02 11:13:05 DEBUG Peer:512 - Message processor for peer 192.144.182.73:9889 failed to terminate Eventually Network.shutdown() would exit, releasing synchronization lock and awaking stuck Peer threads, which could then try to access repository (now closed) causing further log spam. Now it uses Network.getConnectedPeers to return duplicated List<Peer>, minimizing lock time on this.connectedPeers. Also made Peer main thread logging more informative when a IOException occurs, as most situations are harmless EOF or connection reset by peer.
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.jarto 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.