Error: Only a client can stream data.

[lethanhclub]

I don't see anything...
But it have control request in server

This is alert from server when i open new tab.

07.Aug.09 15:33:51,036 < INFO> Serving request: /lightstreamer/create_session.js
?LS_phase=8902&LS_polling=true&LS_polling_millis=0&LS_idle_millis=30000&LS_clien
t_version=4.3&LS_adapter=PROXY_HELLOWORLD& from 127.0.0.1:52048
07.Aug.09 15:33:51,040 < INFO> Starting new session: Sef925d8a4184e660T3351039 f
rom 127.0.0.1:52048
07.Aug.09 15:33:51,066 < INFO> Serving request: /lightstreamer/control.html?LS_s
ession=Sef925d8a4184e660T3351039&LS_window=1&LS_win_phase=4&LS_op=add&LS_req_pha
se=61&LS_mode1=MERGE&LS_id1=itemMa&LS_schema1=Items&LS_unique=1 from 127.0.0.1:5
2048
07.Aug.09 15:33:51,068 < INFO> Controlling session: Sef925d8a4184e660T3351039 fr
om 127.0.0.1:52048
07.Aug.09 15:33:51,087 < INFO> Serving request: /lightstreamer/STREAMING_IN_PROG
RESS?LS_session=Sef925d8a4184e660T3351039&LS_phase=8903& from 127.0.0.1:52053
07.Aug.09 15:33:51,088 < INFO> Attaching session: Sef925d8a4184e660T3351039 from
 127.0.0.1:52053
07.Aug.09 15:33:53,076 < INFO> Serving request: /lightstreamer/control.html?LS_s
ession=Sef925d8a4184e660T3351039&LS_window=1&LS_win_phase=4&LS_op=add&LS_req_pha
se=61&LS_mode1=MERGE&LS_id1=itemMa&LS_schema1=Items&LS_unique=2 from 127.0.0.1:5
2048
07.Aug.09 15:33:53,078 < INFO> Controlling session: Sef925d8a4184e660T3351039 fr
om 127.0.0.1:52048

[Mone]

what about the snapshot setting?
If you open the application in a completely different browser instead of opening it in another tab, does it receive data?

[lethanhclub]

what about the snapshot setting?
If you open the application in a completely different browser instead of opening it in another tab, does it receive data?

snapshot settings???
even if I open different browser then it doesn't receive data...same as open new tab.

[Mone]

Probably what happens is that the first client that connects receives the snapshot directly from the adapter. Once the item is subscribed the snapshot is handled by the server that does not send it unless you ask for it. If you don't ask the snapshot to the server it will send only the new updates but not the current status.

to fix your app, where you call

var pushtable = new OverwriteTable(page1, schema1, "MERGE");

you should add
pushtable.setSnapshotRequired(true);


please read the setSnapshotRequired documentation and the General Concepts.pdf file available under the LS_HOME/DOCS-SDKs folder

[lethanhclub]

Thank Mone for your help...I have been fixed this problem.