public void returnConnection(RedisConnection connection) {
SubscribesConnectionEntry entry = clients.get(connection.getRedisClient());
if (entry.isFreezed()) {
connection.closeAsync();
} else {
entry.getConnections().add(connection);
}
entry.getConnectionsSemaphore().release();
}
@Override
public void shutdown() {
monitorFuture.cancel(true);
super.shutdown();
for (RedisConnection connection : nodeConnections.values()) {
connection.getRedisClient().shutdown();
}
}
private void tryReconnect(
final EventLoopGroup group, final RedisConnection connection, final int attempts) {
if (connection.isClosed() || group.isShuttingDown()) {
return;
}
log.debug(
"reconnecting {} to {} ", connection, connection.getRedisClient().getAddr(), connection);
bootstrap
.connect()
.addListener(
new ChannelFutureListener() {
@Override
public void operationComplete(final ChannelFuture future) throws Exception {
if (connection.isClosed() || group.isShuttingDown()) {
return;
}
try {
if (future.isSuccess()) {
log.debug(
"{} connected to {}", connection, connection.getRedisClient().getAddr());
reconnect(connection, future.channel());
return;
}
} catch (RedisException e) {
log.warn(
"Can't connect "
+ connection
+ " to "
+ connection.getRedisClient().getAddr(),
e);
}
int timeout = 2 << attempts;
group.schedule(
new Runnable() {
@Override
public void run() {
tryReconnect(group, connection, Math.min(BACKOFF_CAP, attempts + 1));
}
},
timeout,
TimeUnit.MILLISECONDS);
}
});
}
private void reconnect(final RedisConnection connection, final Channel channel) {
if (connection.getReconnectListener() != null) {
// new connection used only for channel init
RedisConnection rc = new RedisConnection(connection.getRedisClient(), channel);
Promise<RedisConnection> connectionFuture = bootstrap.group().next().newPromise();
connection.getReconnectListener().onReconnect(rc, connectionFuture);
connectionFuture.addListener(
new FutureListener<RedisConnection>() {
@Override
public void operationComplete(Future<RedisConnection> future) throws Exception {
if (future.isSuccess()) {
connection.updateChannel(channel);
resubscribe(connection);
}
}
});
} else {
connection.updateChannel(channel);
resubscribe(connection);
}
}
public void returnConnection(RedisConnection connection) {
ClientConnectionsEntry entry = addr2Entry.get(connection.getRedisClient().getAddr());
entries.returnConnection(entry, connection);
}