Finisar Surveyor, Руководство пользователя

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10-41
Expert Features
Session Layer
10
TNS Slow Server Connect
Counter
TNS Slow Server Connect is a counter of all TNS server connect responses that
exceed a threshold. A count of all TNS Slow Server Connects displays in the
Overview
counters of Expert View.
Expert Symptom
TNS Slow Server Connect events are automatically logged as expert symptoms.
The
Symptom Summary
field provides information about the time elapsed for the
server connect and the threshold value. For example:
Slow TNS server connect=298 ms (> 200 ms)
The threshold value for this symptom can be changed. The default value is 100
milliseconds.
This symptom applies to TNS servers only. If the response time is too long (exceeds
the threshold), the symptom is recorded. For slow responses other than the ready
message, see the TNS Slow Server Response symptom.
Diagnostic Details
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Problem Description:
The TNS server has taken longer than the threshold value to accept/refuse a connection.
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Probable Cause(s):
1. The server was very busy.
2. The network is overloaded.
3. The path to the sender from the receiver has long delays.
4. There may be an overloaded switch or router in the path.
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Recommended Action(s):
1. Upgrade the server's CPU and/or memory.
2. Reduce the number of connections to the server.
3. Load balance your network.