private void TryConnect()
{
lock (this)
{
if (_disposed)
{
return;
}
else if (_fChannel != null && !_fChannel.Done)
{
return;
}
_fChannel = _bootstrap.connect(_destination.socketAddress());
_channel = _fChannel.channel();
_fChannel.addListener((ChannelFuture f) =>
{
if (!f.Success)
{
long millis = _connectionBackoff.Millis;
_cappedLogger.warn("Failed to connect to: " + _destination.socketAddress() + ". Retrying in " + millis + " ms");
f.channel().eventLoop().schedule(this.tryConnect, millis, MILLISECONDS);
_connectionBackoff.increment();
}
else
{
_log.info("Connected: " + f.channel());
f.channel().closeFuture().addListener(closed =>
{
_log.warn(string.Format("Lost connection to: {0} ({1})", _destination, _channel.remoteAddress()));
_connectionBackoff = _connectionBackoffStrategy.newTimeout();
f.channel().eventLoop().schedule(this.tryConnect, 0, MILLISECONDS);
});
}
});
}
}
public override void Run()
{
if (!MoveToRunningState())
{
return;
}
try
{
_monitor.startedDownloadingSnapshot();
_applicationProcess.pauseApplier(OPERATION_NAME);
while (_keepRunning && !_downloader.downloadSnapshot(_addressProvider))
{
Thread.Sleep(_timeout.Millis);
_timeout.increment();
}
}
catch (InterruptedException)
{
Thread.CurrentThread.Interrupt();
_log.warn("Persistent snapshot downloader was interrupted");
}
catch (DatabaseShutdownException e)
{
_log.warn("Store copy aborted due to shut down", e);
}
catch (Exception e)
{
_log.error("Unrecoverable error during store copy", e);
_dbHealth.get().panic(e);
}
finally
{
_applicationProcess.resumeApplier(OPERATION_NAME);
_monitor.downloadSnapshotComplete();
_state = State.Completed;
}
}
