dropped messages, is this normal?

[udikantz]

Hi,
Recently i have noticed an increase of of dropped messages in our server.
Would like you to take a look at the screen shoot of the admin console, and tell me if its normal or you see something suspicious.

Is there anything that we can do besides increasing the Queue size?

we currently have an average of 60 users online and aprox 30 npcs running on our server.

we usually send very small messages most of them are string formated, optimized to be as small as possible, we don't send data too frequently.
usually rooms contains 3-9 users and all the users in the room get the same messages from the server. at a maximum rate of a message every 2 secconds.

here is the screen shoot:

[BigFIsh]

In your config.xml file, what are your

Code: Select all

<ClientMessagQueue>
    <QueueSize>xx</QueueSize>
    <MaxAllowedDroppedPackets>xx</MaxAllowedDroppedPackets>
</ClientMessagQueue>

settings?

Furthermore, are your server sending data to the client at a frequent rate? i.e. NPC movements. Dropped message packages can occur if a client struggles to keep up with the incoming messages from the server due to slow internet speed.

Have you read the "Understand dropped messages" section of this doc?

[udikantz]

Code: Select all

<ClientMessagQueue>
			<QueueSize>100</QueueSize>
			<MaxAllowedDroppedPackets>10</MaxAllowedDroppedPackets>
		</ClientMessagQueue>

As i mentioned in my post the server is optimized to send mostly small string formatted messages at max rate of 1 message every 2 seconds to a certain user.

and mostly its a much lower rate than that.

yes i have read the doc and i couldn't find something that matches my case, and im not sure how bad is the situation, not sure if its normal or not.

We have a dedicated server with no traffic issues.

[BigFIsh]

As i mentioned in my post the server is optimized to send mostly small string formatted messages at max rate of 1 message every 2 seconds to a certain user.

According to your screenshot, you have sent a total of 865.4 MB worth of data in only 4 days. I'm not sure if this is a lot or normal for 60 users average as I haven't even got my game up and running yet..

On client side did you debug incoming messages from the server to confirm that the server isn't sending any excess data that you may not be aware of? If so, then perhaps some of your clients got a very slow internet speed..

[udikantz]

Yes, all the protocol and the client have been monitored for many many hours. there is no problem with that.

and the server is 60 clients and 30 npcs, the npcs receive and send data like every client so you can say its a 90 client average.

[BigFIsh]

Okay, then I'm not sure. I can only point you to these topics found using the search tool:

http://forums.smartfoxserver.com/viewtopic.php?t=5431
http://forums.smartfoxserver.com/viewtopic.php?t=472
http://forums.smartfoxserver.com/viewtopic.php?t=6003

[udikantz]

None of these topics are related to my problem,
My game is a turn based game, and the message rate are pretty slow i guess, maximum rate of 1 message every 2 secconds per user.

We are running on a 100mbps dedicated server, so i dont think there is a bandwidth problem.
what else can i check or do to find the source of these dropped messages?

[Lapo]

Everything is good in your screenshot.
190 dropped messages in almost 5 days is practically negligible. Dropped packet are caused by clients with bad connections and 200 dropped messages can be generated in 4-5 sessions from the same (or multiple) slow user(s)

[mauro]

I have a question about dropped messages.
When a client is disconnected because have many dropped messages, is fired any event in server side?
Thanks

[Lapo]

Yes, as with any disconnection the event is fired.

[mauro]

InternalEventObject.EVENT_USER_LOST is the event fired, or others?

[Lapo]

That's correct.