4.9.1 Overview of mapping
Mapping of event source hosts is provided by the event base service. The following shows the relationship between the processing of main functions and event-source-host mapping.
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![[Figure]](GRAPHICS/CS033050.GIF)
After JP1 events are acquired from the JP1/Base event service, host information is mapped with JP1 event extended attribute Event source host name (E.JP1_SOURCEHOST). The JP1 events to be mapped here are the JP1 events that are automatically mapped and any JP1 events that match the conditions defined in the event-source-host mapping definition file.
For details about the JP1 events that are automatically mapped, see 5.15 Setting event source host mapping in the manual JP1/Integrated Management 2 - Manager Configuration Guide. For details about the event-source-host mapping definition file, see Event-source-host mapping definition file (user_hostmap.conf) in Chapter 2. Definition Files in the manual JP1/Integrated Management 2 - Manager Command, Definition File and API Reference.
If an acquired event does not match any of the conditions in the event-source-host mapping definition file, the value of Source host (B.SOURCESERVER) is mapped. If a value has already been set for the extended attribute for acquired JP1 event Event source host name (E.JP1_SOURCEHOST), the event source host is not mapped even if the event matches the conditions in the event-source-host mapping definition file.
Event source hosts are not mapped in the following cases:
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There is no attribute subject to mapping.
The error message ID KAVB4667-W is set for Event source host name (E.JP1_SOURCEHOST).
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The value of the attribute subject to mapping is the null character.
The value of Source host (B.SOURCESERVER) is mapped.
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The event source host name for the received JP1 event exceeds 255 bytes.
The error message ID KAVB4666-W is set for Event source host name (E.JP1_SOURCEHOST).
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The number of program-specific extended attributes exceeds 100 as a result of mapping.
Event source host name (E.JP1_SOURCEHOST) is not set.
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The size of the JP1 event exceeds 10,000 bytes, the permitted maximum size, as a result of mapping.
Event source host name (E.JP1_SOURCEHOST) is not set.
If overwrite installation is performed for JP1/IM - Manager, the definitions set in the event-source-host mapping definition file are inherited. Also, the setting as to whether to enable or disable the mapping function of the event source hosts is inherited.