Searching the Help
To search for information in the Help, type a word or phrase in the Search box. When you enter a group of words, OR is inferred. You can use Boolean operators to refine your search.
Results returned are case insensitive. However, results ranking takes case into account and assigns higher scores to case matches. Therefore, a search for "cats" followed by a search for "Cats" would return the same number of Help topics, but the order in which the topics are listed would be different.
Words and Phrases
| Search for | Example | Results |
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| A single word | cat
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Topics that contain the word "cat". You will also find its grammatical variations, such as "cats". |
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A phrase. You can specify that the search results contain a specific phrase. |
"cat food" (quotation marks) |
Topics that contain the literal phrase "cat food" and all its grammatical variations. Without the quotation marks, the query is equivalent to specifying an OR operator, which finds topics with one of the individual words instead of the phrase. |
Using Boolean Operators
| Search for | Operator | Example |
|---|---|---|
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Two or more words in the same topic |
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| Either word in a topic |
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| Topics that do not contain a specific word or phrase |
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| Topics that contain one string and do not contain another | ^ (caret) |
cat ^ mouse
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| A combination of search types | ( ) parentheses |
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Implementing Multi-Threading
In order to improve performance, the Service Manager adapter utilizes multiple threads for the push of CI and Relationship data to SM. The following section explains these settings and how to configure them for maximum performance.
The multi-threading configuration is defined in the sm.properties file on the UCMDB server. To view or edit the file in UCMDB, navigate to Data Flow Management > Adapter Management > ServiceManagerEnhancedAdapter9.41 > Configuration Files > sm.properties.
The following are example multi-threading definitions in the sm.properties file:
01 number.of.concurrent.sending.threads=6
02 min.objects.for.concurrent.sending=50
03 number.of.chunks.per.thread=3
04 recommended.min.cis.per.chunk=50
Explanation
The code excerpt illustrates the relevant multi threading settings on the UCMDB server.
- Line 01 defines the number of parallel threads UCMDB will open to SM for CI push. Setting this parameter to 1 disables multi-threading, while a values of 2 or higher enables multi-threading.
- Line 02 defines the minimum number of SM objects needed to use multiple threads as opposed to a single thread.
- Line 03 defines the number of chunks per thread. This number multiplied by the number of threads gives you the total number of CI data chunks.
- Line 04 defines the recommended minimum number of CIs per CI data chunk.
The total number of chunks = number.of.chunks.per.thread * number.of.concurrent.sending.threads
The integration implements a queue mechanism as follows:
The data passed from UCMDB to SM is divided into equal chunks, and these chunks are placed in a queue.
Each available thread pulls the next chunk from the queue until all threads are available. Once this process has completed, the push is complete.
The mechanism is designed to minimize idle time of each thread. As each thread processes its chunk in parallel, some threads may finish before others and it is inefficient for them to wait for each other.
Caution Defining too many threads
It is ineffective to over-increase the number of threads as this causes the SM server to overload. In enterprise environments where the SM server processing the push data is very robust the number of threads can be increased to 10 and in some cases even 20; however, you must take into account that increasing the number of threads raises CPU usage on the SM server during push, which may reduce application performance.
