Queued Data Mode

[OldnGrey]

Can I please get an accurate meaning of what queued data mode means and what it implies?

I am trying to track down random lag problems that effect a lot of players and we see queued data mode fairly often on the console. eg:

Client $66: Switching to queued data mode (xx, yy bytes)
Leaving queued mode (zzzz bytes transmitted)

Whenever we see the message, that player reports lag but it doesn't mean others will have the lag.

Pings to the player don't seem to indicate a laggy internet.

Because of this setting: EnableFlowControlPackets 0
I had assumed that pol was just going to send the data out anyway and not have to queue it, but obviously not in all cases.

So to the question:
Can queued data mode be caused by pol/script lag or does the queued data mode mean that pol is ready long before the client is ready to accept the data? A better understanding of this message would help me a lot.


Our shard cpu doesn't appear to be an issue. Lots of spikes over time but no flat 100% cpu.
We have 1Mbps bandwidth out to the internet.
I have had a close look at all my critical scripts but don't think it's them.
The reports of lag started around the start of the new year.

[CWO]

Queued data mode means that the client connection is experiencing lag. It basically means that POL needs to send out the information but there isn't enough of a connection to send it out on time (lag). EnableFlowControlPackets has absolutely no connection to this. FlowControlPackets as I understood them were pause and unpause packets supported by older clients that made the client completely stop, receive all of the information it had to receive, then restart making it all seem like it all happened immediately in one jump (i.e. moving a ship and everything moves at the exact same time instead of some things moving in one burst then the others drag along in another burst)

[OldnGrey]

Appreciate the reply CWO.

[Harley]

Guys! I have the same problem and I don't know how to fix it!

Code: Select all

Account kapuero logged in from 92.249.106.17
[04/24 23:41:01] Client#1253 (92.249.106.17): disconnected (account Mudaque)
[04/24 23:41:03] Account kapuero selecting character Kapuero
[pkg/player/login/copychars/reconnect.ecl]:  Acc.: kapuero | Name: Kapuero Started Copy Chars Packet - Char Must Wait 24 min. 30 sec(s).
Client#1283: Switching to queued data mode (1, 8 bytes)
Client#1283: Leaving queued mode (1916 bytes xmitted)
[04/24 23:41:49] [pkg/www/www/updatestats.ecl]: [Web Stats] Updating...
[04/24 23:42:53] [pkg/player/possess/static/campi/checkvacantcamps.ecl]: [Campi package] Completed scan of 0 signs on map britannia
[04/24 23:43:27] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (1100 bytes xmitted)
[04/24 23:43:31] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (2140 bytes xmitted)
[04/24 23:43:33] Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (9243 bytes xmitted)
[04/24 23:43:34] Client#1220: Switching to queued data mode (1, 11 bytes)
Client#1220: Leaving queued mode (1875 bytes xmitted)
[04/24 23:43:37] Client#1220: Switching to queued data mode (1, 69 bytes)
Client#1220: Leaving queued mode (5195 bytes xmitted)
[04/24 23:43:51] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (166 bytes xmitted)
Client#1220: Switching to queued data mode (1, 69 bytes)
Client#1220: Leaving queued mode (1791 bytes xmitted)
[04/24 23:44:01] Client#1220: Switching to queued data mode (1, 11 bytes)
Client#1220: Leaving queued mode (1810 bytes xmitted)
Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (5609 bytes xmitted)
[04/24 23:44:05] Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (8702 bytes xmitted)
[04/24 23:44:06] Client#1220: Switching to queued data mode (1, 68 bytes)
[04/24 23:44:07] Client#1220: Leaving queued mode (5572 bytes xmitted)
Client#1220: Switching to queued data mode (1, 11 bytes)
Client#1220: Leaving queued mode (1576 bytes xmitted)
[04/24 23:44:10] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (5746 bytes xmitted)
Client#1220: Switching to queued data mode (1, 12 bytes)
Client#1220: Leaving queued mode (2052 bytes xmitted)
[04/24 23:44:16] Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (10519 bytes xmitted)
[04/24 23:44:24] Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (5059 bytes xmitted)
Client#1220: Switching to queued data mode (1, 11 bytes)
Client#1220: Leaving queued mode (2040 bytes xmitted)
[04/24 23:44:26] Client#1220: Switching to queued data mode (1, 69 bytes)
Client#1220: Leaving queued mode (1032 bytes xmitted)
Client#1220: Switching to queued data mode (1, 12 bytes)
Client#1220: Leaving queued mode (406 bytes xmitted)
[04/24 23:44:31] Client#1220: Switching to queued data mode (1, 70 bytes)
Client#1220: Leaving queued mode (374 bytes xmitted)
Client#1220: Switching to queued data mode (1, 12 bytes)
Client#1220: Leaving queued mode (938 bytes xmitted)
[04/24 23:44:33] Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (1047 bytes xmitted)
Client#1220: Switching to queued data mode (1, 12 bytes)
Client#1220: Leaving queued mode (129 bytes xmitted)
Client#1220: Switching to queued data mode (1, 12 bytes)
Client#1220: Leaving queued mode (102 bytes xmitted)
[04/24 23:44:35] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (9265 bytes xmitted)
[04/24 23:44:36] Client#1220: Switching to queued data mode (1, 69 bytes)
Client#1220: Leaving queued mode (9504 bytes xmitted)
[04/24 23:44:38] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (11194 bytes xmitted)
[04/24 23:44:41] Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (371 bytes xmitted)
Client#1220: Switching to queued data mode (1, 12 bytes)
Client#1220: Leaving queued mode (2170 bytes xmitted)
[04/24 23:44:49] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (234 bytes xmitted)
Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (303 bytes xmitted)
Client#1220: Switching to queued data mode (1, 12 bytes)
Client#1220: Leaving queued mode (232 bytes xmitted)
Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (335 bytes xmitted)
[04/24 23:44:51] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (1406 bytes xmitted)
[04/24 23:44:55] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (3377 bytes xmitted)
Client#1220: Switching to queued data mode (1, 11 bytes)
Client#1220: Leaving queued mode (114 bytes xmitted)
[04/24 23:44:59] Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (3370 bytes xmitted)
Client#1220: Switching to queued data mode (1, 82 bytes)
Client#1220: Leaving queued mode (357 bytes xmitted)
[04/24 23:45:06] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (303 bytes xmitted)
Client#1220: Switching to queued data mode (1, 11 bytes)
Client#1220: Leaving queued mode (217 bytes xmitted)
Client#1220: Switching to queued data mode (1, 11 bytes)
Client#1220: Leaving queued mode (115 bytes xmitted)
Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (289 bytes xmitted)
Client#1220: Switching to queued data mode (1, 69 bytes)
[04/24 23:45:07] Client#1220: Leaving queued mode (10581 bytes xmitted)
[04/24 23:45:09] Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (8413 bytes xmitted)
[04/24 23:45:13] Client#1220: Switching to queued data mode (1, 11 bytes)
Client#1220: Leaving queued mode (3179 bytes xmitted)
Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (2557 bytes xmitted)
Client#1220: Switching to queued data mode (1, 12 bytes)
Client#1220: Leaving queued mode (1138 bytes xmitted)
[04/24 23:45:22] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (303 bytes xmitted)
[04/24 23:45:23] Client#1220: Switching to queued data mode (1, 12 bytes)
Client#1220: Leaving queued mode (222 bytes xmitted)
Client#1220: Switching to queued data mode (1, 12 bytes)
Client#1220: Leaving queued mode (148 bytes xmitted)
[04/24 23:45:32] Client#1220: Switching to queued data mode (1, 11 bytes)
Client#1220: Leaving queued mode (1880 bytes xmitted)
Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (371 bytes xmitted)
[04/24 23:45:44] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (5156 bytes xmitted)
Client#1220: Switching to queued data mode (1, 69 bytes)
Client#1220: Leaving queued mode (4152 bytes xmitted)
Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (535 bytes xmitted)
[04/24 23:45:53] [pkg/player/possess/static/campi/checkvacantcamps.ecl]: [Campi package] Completed scan of 0 signs on map britannia
[04/24 23:45:54] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (12467 bytes xmitted)
[04/24 23:45:57] Client#1220: Switching to queued data mode (1, 11 bytes)
Client#1220: Leaving queued mode (2592 bytes xmitted)
[04/24 23:45:59] Client#1220: Switching to queued data mode (1, 69 bytes)
Client#1220: Leaving queued mode (206 bytes xmitted)
Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (454 bytes xmitted)
[04/24 23:46:00] Client#1220: Switching to queued data mode (1, 12 bytes)
Client#1220: Leaving queued mode (3251 bytes xmitted)
Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (220 bytes xmitted)
[04/24 23:46:02] Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (11094 bytes xmitted)
[04/24 23:46:08] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (7128 bytes xmitted)
Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (3561 bytes xmitted)
[04/24 23:46:09] Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (7900 bytes xmitted)
Client#1220: Switching to queued data mode (1, 69 bytes)
Client#1220: Leaving queued mode (2632 bytes xmitted)
[04/24 23:46:10] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (10241 bytes xmitted)
Client#1220: Switching to queued data mode (1, 68 bytes)
Client#1220: Leaving queued mode (5090 bytes xmitted)
Client#1220: Switching to queued data mode (1, 11 bytes)
Client#1220: Leaving queued mode (2397 bytes xmitted)
Client#1220: Switching to queued data mode (1, 69 bytes)
Client#1220: Leaving queued mode (3349 bytes xmitted)
Client#1220: Switching to queued data mode (1, 12 bytes)
Client#1220: Leaving queued mode (119 bytes xmitted)
[04/24 23:46:11] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (10003 bytes xmitted)
[04/24 23:46:14] Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (303 bytes xmitted)
Client#1220: Switching to queued data mode (1, 83 bytes)
Client#1220: Leaving queued mode (2391 bytes xmitted)
Client#1220: Switching to queued data mode (1, 12 bytes)
Client#1220: Leaving queued mode (6594 bytes xmitted)
Client#1220: Switching to queued data mode (1, 68 bytes)

Very need your help!!!
p.s. I don't know, does it interfere with the game or not, but after server restart, these messages disappear!

[CWO]

from the looks of it, it kept reporting that only client #1220 was going in and out of queued data mode. It could be that one specific person is having connection problems of their own or may be connecting from the other side of the planet and just has a bit of lag. This does not hurt your server whatsoever nor does this lag anyone else.

[Harley]

CWO, thank u for ur answer!
U see, when it starts, many players knock out games!
I would really like to make sure that when it starts from player, server would kick him out of game.
But I don't know how to make it, because I think that this will work with packets..

[CWO]

Theres no way to detect this. The messages and the process that detects and generates this message isnt accessible from scripts. Queued data mode is more of a symptom than a cause of any problem.