public void run() {
if (!explicitClosed && hasHostFail()) {
if (listener.shouldReconnect()) {
try {
if (currentConnectionAttempts.get() >= urlParser.getOptions().failoverLoopRetries) {
throw new QueryException(
"Too many reconnection attempts (" + urlParser.getOptions().retriesAllDown + ")");
}
SearchFilter filter = getFilterForFailedHost();
filter.setUniqueLoop(true);
listener.reconnectFailedConnection(filter);
// reconnection done !
stopFailover();
} catch (Exception e) {
// FailLoop search connection failed
}
} else {
if (currentConnectionAttempts.get() > urlParser.getOptions().retriesAllDown) {
// stopping failover after too many attemps
stopFailover();
}
}
} else {
stopFailover();
}
}
@Override
protected void doRun() {
Listener listener;
while (!isUnschedule() && (listener = queue.poll()) != null) {
if (!listener.isExplicitClosed() && listener.hasHostFail()) {
if (listener.canRetryFailLoop()) {
try {
SearchFilter filter = listener.getFilterForFailedHost();
filter.setFailoverLoop(true);
listener.reconnectFailedConnection(filter);
// reconnection done !
} catch (Exception e) {
// FailoverLoop search connection failed
queue.add(listener);
}
}
}
}
}
/**
* Loop to connect failed hosts.
*
* @param searchFilter search parameters.
* @throws QueryException if there is any error during reconnection
*/
@Override
public void reconnectFailedConnection(SearchFilter searchFilter) throws QueryException {
proxy.lock.lock();
try {
if (!searchFilter.isInitialConnection() && (isExplicitClosed() || !isMasterHostFail())) {
return;
}
currentConnectionAttempts.incrementAndGet();
resetOldsBlackListHosts();
List<HostAddress> loopAddress = new LinkedList<>(urlParser.getHostAddresses());
if (HaMode.FAILOVER.equals(mode)) {
// put the list in the following order
// - random order not connected host
// - random order blacklist host
// - random order connected host
loopAddress.removeAll(getBlacklistKeys());
Collections.shuffle(loopAddress);
List<HostAddress> blacklistShuffle = new LinkedList<>(getBlacklistKeys());
Collections.shuffle(blacklistShuffle);
loopAddress.addAll(blacklistShuffle);
} else {
// order in sequence
loopAddress.removeAll(getBlacklistKeys());
loopAddress.addAll(getBlacklistKeys());
}
// put connected at end
if (currentProtocol != null && !isMasterHostFail()) {
loopAddress.remove(currentProtocol.getHostAddress());
// loopAddress.add(currentProtocol.getHostAddress());
}
MasterProtocol.loop(this, loopAddress, searchFilter);
// close loop if all connection are retrieved
if (!isMasterHostFail()) {
FailoverLoop.removeListener(this);
}
// if no error, reset failover variables
resetMasterFailoverData();
} finally {
proxy.lock.unlock();
}
}
