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Foglight Experience Monitor 5.8.1 - Metric Reference Guide

Foglight Experience Monitor metric categories
General metric categories Application-oriented categories Service-oriented categories Web services category Content-oriented categories Infrastructure-oriented categories Types of metrics How standard metrics are calculated End-User Access Speed Network Latency Instrumented metric: Load Time Time frames in which metrics are viewed
Metric definitions
Non-system category metrics
Access Speed Access Speed Distribution Alarm Application Time Cipher Suite Not Found City Clicks per Session Client IP Command Byte Volume - Server Command Byte Volume - User Command Client Time Command Completion Time Command Count Command Data Size - Server Command Data Size - User Command Initial Response Time Command Initial Response Time Distribution Command Network Latency Command Processing Time Command Processing Time Percentile Command Processing Time Service Level Command Timeout Count Component List Size Connection Closed Count Connection Count Connection Duration Connection Established Count Connection Open Wait Count Connection Reset Count Connection Timeout Count Duration End-to-End Time for Dialup Users (0-56k) End-to-End Time for ISDN Users (56k-128k) End-to-End Time for Low-End Broadband Users (128k-384k) End-to-End Time for High-End Broadband Users (384k-728k) End-to-End Time for T1/Lan Users (> 728k) End-to-End Time Service Level Error Count (HTTP 4xx Client Errors) Error Count (HTTP 5xx Server Errors) Fault Actor Fault Code Fault Detail Fault String Fault Subcodes Field Out of Range Hit Count Hit End-To-End Time Hit Redirect Ratio Hit Size Incomplete SSL Key Invalid SSL Content Invalid SSL Handshake Type Invalid SSL Key Invalid SSL Record Length Invalid SSL State Invalid SSL Version Number IP Packet Byte Volume - Server IP Packet Byte Volume - User IP Packet Count - Server IP Packet Count - User IP Packet Size - Server IP Packet Size - User ISP Load Time Load Time Percentile Login Name Missing Reusable Secret Missing SSL Key Other Requests Page Access Speed Distribution Page Client Time Page Connection Count Page Download Attempts Page Download Size Page Element Count Page End-to-End Time Page End-To-End Time Distribution Page End-To-End Time Percentile Page Exit Count Page Network Latency Page Peak Count per Second Page Processing Time Page Processing Time Distribution Page Processing Time Percentile Page Redirect Ratio Page Stop Count Page Stop Rate Page Stop Time Page Think Time Page Timeout Count Page Views Path Count Path Duration Path End-To-End Time Path End-to-End Time Percentile Processing Load Percentage Processing Time Service Level Referrer Request Code Count Response Code Count Service Abort Count Service Client Time Service Count Service Duration Service End-to-End Time Service End-to-End Time Distribution Service End-to-End Time Percentile Service Network Latency Service Peak Count per Second Service Processing Load Percentage Service Processing Time Service Processing Time Distribution Service Processing Time Percentile Service Processing Time Service Level Service Request Count per Second Service Started Count Service Think Time Service Timeout Count Session Count Session Key Site Stickiness SOAP Operation Client Time SOAP Operation Completion Time SOAP Operation Completion Time Distribution SOAP Operation Consumer Overhead Ratio SOAP Operation Count SOAP Operation End-To-End Time SOAP Operation End-to-End Time Distribution SOAP Operation End-to-End Time Percentile SOAP Operation Failure Count SOAP Operation Initial Response Time SOAP Operation Network Latency SOAP Operation Peak Count per Second SOAP Operation Processing Time SOAP Operation Processing Time Distribution SOAP Operation Processing Time Percentile SOAP Operation Provider Overhead Ratio SOAP Operation Success Count SOAP Operation Success Ratio SOAP Operation Think Time SOAP Operation Timeout Count SOAP Transaction Abort Count SOAP Transaction Client Time SOAP Transaction Completion Time SOAP Transaction Completion Time Distribution SOAP Transaction Count SOAP Transaction Duration SOAP Transaction End-to-End Time SOAP Transaction End-to-End Time Distribution SOAP Transaction End-to-End Time Percentile SOAP Transaction Initial Response Time SOAP Transaction Network Latency SOAP Transaction Peak Count per Second SOAP Transaction Processing Time SOAP Transaction Processing Time Distribution SOAP Transaction Processing Time Percentile SOAP Transaction Processing Time Service Level SOAP Transaction Request Peak Count per Second SOAP Transaction Think Time SOAP Transaction Timeout Count SSL Memory Error Step Started Count Step Completion Count Step Abort Count Step Timeout Count Subnet Success Ratio Success Ratio (with Client Errors) Success Ratio (with Server Errors) TCP Command Client Time TCP Command Completion Time TCP Command Count TCP Command Initial Response Time TCP Command Initial Response Time Percentile TCP Command Network Latency TCP Command Processing Time TCP Connection Open Peak Count per Second TCP Queue Size TCP Control Segment Byte Volume - Client TCP Control Segment Byte Volume - Server TCP Control Segment Count - Client TCP Control Segment Count - Server TCP Control Segment Size - Client TCP Control Segment Size - Server TCP Data Segment Byte Volume - Client TCP Data Segment Byte Volume - Server TCP Data Segment Count - Client TCP Data Segment Count - Server TCP Data Segment Size - Client TCP Data Segment Size - Server TCP Duplicate Resend Segment Byte Volume - Client TCP Duplicate Resend Segment Byte Volume - Server TCP Duplicate Resend Segment Count - Client TCP Duplicate Resend Segment Count - Server TCP Duplicate Resend Segment Size - Client TCP Duplicate Resend Segment Size - Server TCP Fragmented Segment Byte Volume - Client TCP Fragmented Segment Byte Volume - Server TCP Fragmented Segment Size - Client TCP Fragmented Segment Size - Server TCP Fragmented Segment Count - Client TCP Fragmented Segment Count - Server TCP Invalid Checksum Segment Byte Volume - Client TCP Invalid Checksum Segment Byte Volume - Server TCP Invalid Checksum Segment Size - Client TCP Invalid Checksum Segment Size - Server TCP Invalid Checksum Segment Count - Client TCP Invalid Checksum Segment Count - Server TCP Payload Byte Volume - Client TCP Payload Byte Volume - Server TCP Resend Segment Byte Volume - Client TCP Resend Segment Byte Volume - Server TCP Resend Segment Count - Client TCP Resend Segment Count - Server TCP Resend Segment Size - Client TCP Resend Segment Size - Server TCP Segment Byte Volume - Client TCP Segment Byte Volume - Server TCP Segment Count - Client TCP Segment Count - Server TCP Segment Size - Client TCP Segment Size - Server TCP Timeout Count - Syn TCP Timeout Count - Idle TCP Timeout Count - Half Open TCP Urgent Segment Byte Volume - Client TCP Urgent Segment Byte Volume - Server TCP Urgent Segment Count - Client TCP Urgent Segment Count - Server TCP Urgent Segment Size - Client TCP Urgent Segment Size - Server Unexpected Client Hello Message Unexpected Server Hello Message Unknown Key Exchange Unload Time Unload Time Percentile User Agent User Count User Stickiness
System category metrics
Agent Memory Consumption Warnings Agent Restarts Baseline Partition Size Backup Errors Checksum Errors Client Segments Count Client Segments Missing Client Segments Missing Rate Communication Errors Connection Errors Connections Started Connections Dropped CPU1 Temperature CPU2 Temperature CPU Core 1 Utilization CPU Core 2 Utilization CPU Core 3 Utilization CPU Core 4 Utilization CPU Core 5 Utilization CPU Core 6 Utilization CPU Core 7 Utilization CPU Core 8 Utilization CPU Utilization Database Load Errors Database Load Time Database Partition Usage Database Records Loaded Datastore Inode Usage Datastore Partition Usage Day Partition Size Excessive Data Volume FxV Bytes Transmitted FxV Discards FxV Hits Transmitted Hour Partition Size Log Partition Usage Memory Consumption Warnings Memory Utilization Metric Table Entries Metric Table Size Minute Partition Size Monthly Partition Size OS Partition Usage Packet Drop Rate Packet Errors Packet Errors - Port 1 Packet Errors - Port 2 Packet Errors - Port 3 Packet Errors - Port 4 Packet Errors - Port 5 Packet Errors - Port 6 Packet Errors - Port 7 Packet Errors - Port 8 Packets Captured Packets Captured – Port 1 Packets Captured – Port 2 Packets Captured – Port 3 Packets Captured – Port 4 Packets Captured – Port 5 Packets Captured – Port 6 Packets Captured – Port 7 Packets Captured – Port 8 Packets Dropped Packets Dropped – Port 1 Packets Dropped – Port 2 Packets Dropped – Port 3 Packets Dropped – Port 4 Packets Dropped – Port 5 Packets Dropped – Port 6 Packets Dropped – Port 7 Packets Dropped – Port 8 Packets Processed Packets Processed – Port 1 Packets Processed – Port 2 Packets Processed – Port 3 Packets Processed – Port 4 Packets Processed – Port 5 Packets Processed – Port 6 Packets Processed – Port 7 Packets Processed – Port 8 RAID Array Degraded Relation Table Entries Relation Table Size Resource Table Entries Resource Table Size SiteMinder Errors Server Segments Count Server Segments Missing Server Segments Missing Rate SOAP Error Rate SOAP Errors SOAP Message Count SOAP XML Errors SSL Connection Errors SSL Connections Released SSL Connections Started SSL Connection Error Rate Swap Partition Usage System Temperature Tmp Partition Usage Total Table Size Value Count Table Entries Value Count Table Size Weekly Partition Size

Session Count

Table 124. Session Count

Application Component, Application Component by City, Application Component by Country, Application Component by ISP, Application Component by Region, Application Component by Server, Application Component by Subnet, City, Country, Enterprise, HTTP Protocol, ISP, Region, Site, Subnet, User Agent, Instrumented Application Component, Instrumented Application Component by City, Instrumented Application Component by Country, Instrumented Application Component by Region, Instrumented Application Component by ISP

Count Metric


This metric shows the number of user sessions that were active during a specific time interval. A session is uniquely identified by its session ID and configured in the web console on the Configure > Monitoring > User Sessions page.

A user session is considered active whenever the user opens a new TCP connection within the session. An existing user session is considered active if the user sends or receives any messages over one of its existing TCP connections during the time interval.

This metric does not reflect inactive sessions that generate no traffic during a five-minute time interval. For example, assume a session is active at 8:02 and then again at 8:12. Only the 8:00-8:05 and 8:10-8:15 intervals have that session included in the calculation for this metric. The 8:05-8:10 interval does not include the session since it was inactive during that time.

For real-time, hourly, and daily time intervals, the metric is incremented the first time a session ID appears in a time interval. To ensure that the count is only incremented once for the interval, a table of all session IDs discovered in the monitored traffic during the interval is maintained.

For weekly and monthly time intervals, the session count is calculated by adding together the session counts from the underlying daily intervals from that week or month.

Session Key

Table 125. Session Key

User Session



This field contains the identifier assigned by the web server to uniquely identify an individual user session. Typically, web servers store state information about the user's session (such as items in their shopping cart) and use this session key in a database lookup to find the users state.

Sessions keys are necessary for session identification since the user's IP address is not guaranteed to be unique among connecting users: user's coming through proxies all share the same source IP.

Sessions keys are different from the Login Name. They are typically assigned the first time a user accesses a web site and maintained across the entire user session. A login name is only required when the user tries to perform a privileged operation on the web site (such as checking out items in shopping cart). The session key is completely hidden from the user and only used by the web site infrastructure.

The Foglight Experience Monitor administrator need to enable monitoring of session keys by entering the session key variables used to pass the session key between the client and server.

See “Identifying user sessions” in the Foglight Experience Monitor Installation and Administration Guide for information on how to configure this feature.

Session keys are extracted from either a query variable or cookie variable. This information is stored in the HTTP headers.

Site Stickiness

Table 126. Site Stickiness


Standard Metric


This metric reflects the amount of time users spend on a site. A user's session with the site starts with the first packet the user sends to a server that contains the site and ends with the last packet the received from the user. When the user has not been active for five minutes or longer, the session has ended.

For each user that accesses a monitored site, the site session start time is recorded for their first page view on that site. With each additional page view on the same site, the site session stop time is updated with the current time. When a user clicks to a different site or becomes inactive, then the site session time is updated as follows:

SOAP Operation Client Time

SOAP Applications, SOAP Consumer, SOAP Operation, SOAP Server, SOAP Transaction Step, SOAP Web Service

Standard Metric


For each SOAP Operation, this metric shows the amount of time spent on the client side of the network where a consumer of SOAP services is located. This includes the network delay in sending the data block, the time the client spends processing the data block, and the network delay needed to transmit the acknowledgement. While processing a single command, there may be several data blocks that are sent, processed at the client, and then acknowledged.

The response generated for a request is transmitted back to the client in one or more blocks. Each block of data sent to the client must be acknowledged by the client before the server sends the next block. Often, the client must do some processing of the data it received before it can send an acknowledgement back to the server. Once all of the blocks sent by the server have been acknowledged by the client, the command is complete.

SOAP Operation Completion Time

SOAP Operation Processing Time

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