exception occured in adapter

[engcoder]

lightstreamer version is 5.1.2

what you mean about ARI SDK?

and how i resolve this issue?

[giuseppe.corti]

Hi engcoder,

The ARI is the protocol used for the comunication between Proxy Adapters and Remote Adapters.
In your case, Lightstreamer server 5.x, you should use 1.4.3 (https://www.lightstreamer.com/repo/d...re/Version.txt)

Now back to the issue, we need to ascertain if Dario's hypothesis is correct; ie. the Proxy Adapter is no longer listening because it is already connected, perhaps for an instance of your Remote Adapter abnormally closed.
Please could you set the log level to DEBUG for this logger com.lightstreamer.adapters.remote in lightstreamer_log_conf.xml
<br /> <logger name="com.lightstreamer.adapters.remote" level="DEBUG"><br /> <appender-ref ref="LSDailyRolling"/><br /> </logger>

so, if the problem reappears, we will have more information.

Regards,
Giuseppe