WARN: Updated discarded for item ?

craigtype3

I'm having a problem sending an update to a client by the IItemEventListener.Update method. I'm passing as itemName the same string (in this case "188") that was earlier passed to the Subscribe method. The itemEvent parameter is a simple Dictionary (see below) and the isSnapshot parameter is set to false.

However I'm not seeing the right data being sent in the HTTP stream - it shows only "<script>d(1,1,1,"#");</script>" and the log has the following message: "Update discarded for item 188"

The table is set to operate in RAW mode so I think any values that I send to Update should be sent to the client?

The itemEvent parameter is the following:
new Dictionary<string, string>() {
{"value1", "1"},
{"value2", "craig"}
};

Any help is appreciated, thanks!

Alessandro Alinone

Hi,

Are you sure item 188 is still subscribed to by at least one client when you inject the update from the Adapter?

Cheers,

Alessandro

craigtype3

I'm pretty sure it's still subscribed - the Unsubscribe method is not being called before I call Update.

Also, from the .Net side I see the following in the log. I don't know if it helps.

33775 [1496] DEBUG Lightstreamer.DotNet.Server.RequestReply.NotifySender (null) - Notify line: 1248872819081|UD3|S|188|S
|100000122c6d583bd|B|0|S|value1|S|1|S|value2|S|craig

Mone

hi,

[syntax="HTML"]
<script>d(1,1,1,"#");</script>[/syntax]
depending on the client version in use that string could represent an update for a table that has two fields, one valued as 1 and the other valued as null, OR, a table with a single field which value is null. Which is the build number of the web client you're using?

1248872819081|UD3|S|188|S
|100000122c6d583bd|B|0|S|value1|S|1|S|value2|S|craig

this is your update as it flows from the remote adapter to the server as described by the ARI protocol. Nothing strange here.

Is it possible that your client is subscribing to the correct item but with the wrong schema?
Is the WARN message on the server continuously logged?
Can you check the communication between client and server?

If is it possible please attach here a server log snippet that shows the issue.

craigtype3

Yes, the problem was that I had incorrectly implemented my overrides of the GetItems and GetSchema methods of the MetadataProviderAdaptor. I have it working, though I now have a different problem that I will start a new thread for.