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Oracle® Enterprise Manager Oracle Collaboration Suite Metric Reference Manual
10g Release 2 (10.2)

Part Number B25985-01
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51 E-Mail NNTP Inbound Service

The E-Mail NNTP Service target allows you to monitor the Oracle Email system at the service level. This target is monitored by automatically performing client-like protocol operations in order to to monitor whether the NNTP Service is available and responding in a reasonable time. This target must be configured manually to refer to the host name and port number that is used to connect to the Oracle Email NNTP Service address. The NNTP service can be running from a single host or, in large installations, behind a network load balancer or network address translator.

51.1 Response

The metrics in this category capture the response characteristics of the Oracle Email NNTP service as seen by a client application.

51.1.1 Connect Time (ms)

This metric shows the time taken for the NNTP server to accept a network connection from a client. It is also indicative of the performance of the Oracle Net Services Listener.

Metric Summary

The following table shows how often the metric's value is collected and compared against the default thresholds. The Consecutive Number of Occurrences Preceding Notification column indicates the consecutive number of times the comparison against thresholds should hold TRUE before an alert is generated.

Table 51-1 Metric Summary Table

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Consecutive Number of Occurrences Preceding Notification Alert Text

All Versions

Every 5 Minutes

After Every Sample

>

100

2000

2

Time to connect to news service is %value% (ms)


User Action

None. This is for informational purposes only. This metric is aggregated into the Total Time Metric.

51.1.2 Status

This metric shows whether newsgroup clients are able to access newsgroup articles via the NNTP Service. At least one NNTP service and Oracle Net Services Listener must be running in order for the NNTP Service to be available.

Metric Summary

The following table shows how often the metric's value is collected and compared against the default thresholds. The Consecutive Number of Occurrences Preceding Notification column indicates the consecutive number of times the comparison against thresholds should hold TRUE before an alert is generated.

Table 51-2 Metric Summary Table

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold' Default Critical Threshold Consecutive Number of Occurrences Preceding Notification Alert Text

All Versions

Every 5 Minutes

After Every Sample

=


Not Defined

0

1

Failed to connect to NNTP service


User Action

The NNTP Service logically consists of the Oracle Email NNTP Server and an associated Oracle Net Services Listener which listens for NNTP network connection requests. If this service is down, check to see if at least one NNTP server process is running. Also check to see if the Oracle Net Services Listener configured for the Oracle Email system is running.

51.1.3 Time to Post News Article (ms)

This metric shows the time taken to post a message to a newsgroup through the NNTP server. This metric is also indicative of database performance because news messages are stored in the Oracle Collaboration Suite Database (mailstore).

Metric Summary

The following table shows how often the metric's value is collected and compared against the default thresholds. The Consecutive Number of Occurrences Preceding Notification column indicates the consecutive number of times the comparison against thresholds should hold TRUE before an alert is generated.

Table 51-3 Metric Summary Table

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Consecutive Number of Occurrences Preceding Notification Alert Text

All Versions

Every 5 Minutes

After Every Sample

>

2000

5000

2

Time to post article is %value% (ms)


User Action

None. This is for informational purposes only. This metric is aggregated into the Total Time Metric.

51.1.4 Time to Retrieve News Article (ms)

This metric shows the time taken to retrieve a message from the Oracle Collaboration Suite Database (mailstore) through the NNTP server. This metric is also indicative of database performance.

Metric Summary

The following table shows how often the metric's value is collected.

Target Version Evaluation and Collection Frequency
All Versions Every 5 minutes

User Action

None. This metric is for informational purposes only. This metric is aggregated into the Total Time Metric.

51.1.5 Total Time (ms)

This metric shows the total time taken to complete one simulated NNTP session. This metric is directly dependent on the performance characteristics of the NNTP Server target.

Metric Summary

The following table shows how often the metric's value is collected and compared against the default thresholds. The Consecutive Number of Occurrences Preceding Notification column indicates the consecutive number of times the comparison against thresholds should hold TRUE before an alert is generated.

Table 51-4 Metric Summary Table

Target Version Evaluation and Collection Frequency Upload Frequency Operator Default Warning Threshold Default Critical Threshold Consecutive Number of Occurrences Preceding Notification Alert Text

All Versions

Every 5 Minutes

After Every Sample

>

2000

5000

2

Time to post article is %value% (ms)


User Action

To reduce the total response time, tune the NNTP servers after observing their performance levels. You can also identify which operations in a client session are taking time by looking at the other columns in this metric.