Hi Bruno,
No, the Adapter instance will still be unique regardless of the number of clients. Indeed one istance for the Metadata Adapter and one istance for the Data Adapter.
That said, the client requests are are run in parallel by thread pools, configurable via specific parameters in the configuration file.
So your Data Adapters implementation should be ready to execute concurrent requests for method such as subscribe, unsubscribe, notifyUser, notifyNewSession, getItems, getScheme, ...
For furhther details about specific thread pool please refer to the inline comment of
<server_pool_max_size>parameter in lightstreamer_conf.xml and
<adapter_set_pool> ,
<authentication_pool>, and
<messages_pool>in
adapters.xml template file .
Regards,
Giuseppe