How long does Quality Center wait before releasing user sessions and locks?
Question ID: 104121
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I am looking for an explanation of the WAIT_BEFORE_DISCONNECT Site configuration parameter for Quality Center.

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Posted by (Questions: 36, Answers: 3)
Asked on May 20, 2010 5:53 pm
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Important note - The server does not use the WAIT_BEFORE_DISCONNECT parameter , only the client.

This example is based on configuration parameter settings of

     WAIT_BEFORE_DISCONNECT = 60 minutes

     LOCK_TIMEOUT = 1 Hour 

     AUTO_LOGOUT_ON_SERVER_DISCONNECT = Y
  1. Every 5 minutes, each client machine sends a PING to the server to notify that the client is alive.

  2. Part of the data that is being sent is the interval in milliseconds from the last action that this specific client actually performed (not the ping, but an actual activity).

  3. Each client session is aware of the WAIT_BEFORE_DISCONNECT = 60 minutes value.

  4. After the WAIT_BEFORE_DISCONNET interval, 60 minutes, the client stops sending PING requests and the client session will display the message, ''You have been disconnected by the server.''

  5. Since the AUTO_LOGOUT_ON_SERVER_DISCONNECT parameter is implemented, your users will be logged out.

  6. Meanwhile every 15 minutes, a process runs on the server to

    a. locate these inactive sessions,

    b. clear the sessions and

    c. release their resources (license, locks, etc).

  7. Sessions that did not send PING request to the server in the last 10 minutes are considered as inactive.

  8. Using this example in this environment, the worst case to release the sessions and locks is 85 minutes.

    a. 15 minutes [server process poll] 10 minutes [ping threshold of server process] 60 minute [WAIT_BEFORE_DISCONECT value]

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Posted by (Questions: 6, Answers: 167)
Answered on May 20, 2010 5:57 pm
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Answered on July 16, 2010 10:16 pm
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