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SQL Anywhere 10.0.1 » SQL Anywhere Server - Programming » SQL Anywhere Web Services » Using HTTP sessions

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Session errors

The error 503 Service Unavailable occurs when a new request tries to access a session where more than 16 requests are pending on that session, or an error occured while queuing the session.

The error 403 Forbidden occurs if the client IP address or hostname does not match that of the creator of the session.

A request stipulating a session that does not exist does not implicitly generate an error. It is up to the web application to detect this condition (by checking SessionID, SessionCreateTime, or SessionLastTime connection properties) and do the appropriate action.