FAST Content Plugin Test
When users complain that their search queries are taking too long to execute and produce results, you can use the metrics of this test to figure out where the bottleneck is - is it because the FAST Search 2010 server is taking too long to perform indexing? if so, where is time being spent - while waiting for placing the items in a batch? while submitting batches of items for processing? while awaiting a success/failure acknowledgement for a batch submission? On the other hand, if indexing is not the bottleneck, then, could the slowdown have occurred because of too many batch failures? or because the server was overloaded with too many batch processing requests? or could the problem be owing to the slow crawling rate of the FAST Content SSA?
Target of the test : A FAST Search Server 2010 for SharePoint
Agent deploying the test : An internal agent
Outputs of the test : One set of results for each crawler collection on the FAST Search Server 2010 for SharePoint farm.
| Parameter | Description |
|---|---|
|
Test period |
How often should the test be executed |
|
Host |
The host for which the test is to be configured. |
|
Port |
Refers to the port used by the specified host. By default, this is 13280. |
| Measurement | Description | Measurement Unit | Interpretation |
|---|---|---|---|
|
Avg callback time |
Indicates the average time between acknowledgement of a batch submission and the receipt of a final success or failure callback in the FAST Search server. |
Millisec |
An abnormally high value for the Avg end-to-end time is an indication of a slowdown in the search engine. When this happens, you can compare the values of all the other measures to isolate where the slowdown occurred - did it occur before initialized items were placed for submission? did it occur after submitting batches for processing - if so, was it at the first attempt to submit? or was it when waiting for an acknowledgment for submission? |
|
Avg end-to-end time |
Indicates the average time taken from item initialization to completion of indexing. |
Number |
|
|
Avg init time |
Indicates the average time taken from an item initialization until the item has been placed into a batch for submission. |
Millisec |
|
|
Avg submit time |
Indicates the average time taken between submitting an item's batch in the first attempt to receiving an acknowledgment for the batch that has successfully been received for processing. |
Millisec |
|
|
Avg wait time |
Indicates the average time from when an item is placed into a batch until the first attempt to submit. |
Millisec |
|
|
Batches failed |
Indicates the number of batches that failed prior to indexing. |
Number |
Ideally, the value of this measure should be zero. |
|
Currently processing batches |
Indicates the number of batches that are currently being processed. |
Number |
|
|
Batches ready |
Indicates the number of batches received from the content sources that are queued up and are ready to be submitted to the Content Distributor. |
Number |
If the value of this measure is 0, it indicates that the FAST Search Server 2010 for SharePoint farm back-end is processing content faster than the Content SSA can crawl. This means that you can further increase your crawling rate. If the number is higher than zero, consider adding more document processors, or see whether you have added an external item processor that slows down the speed of certain items flowing through the indexing pipeline. |
|
Batches submitted |
Indicates the number of batches that were sent to the FAST Search server but the callback is still pending. |
Number |
If the value of this measure is 0, it indicates that the batches are not sent to the Fast Search Server Farm backend for processing. |
|
Successfully indexed batches |
Indicates the number of items that were indexed successfully. |
Number |
|
|
Total batches submitted for processing |
Indicates the total number of items that were sent for processing through the Content SSA since the last service restart. |
Number |
|
|
Currently processing items |
Indicates the number of items that were currently being processed. |
Number |
|
|
Successfully indexed items |
Indicates the number of items that were indexed successfully. |
Number |
|
|
Total documents submitted for processing |
Indicates the total number of items that were sent for processing through the Content SSA since the last service restart. |
Number |
|
