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How merge of devices works in detail?

Question asked by dakoserv-opa on Dec 19, 2016
Latest reply on Dec 20, 2016 by dakoserv-opa

Hi,

 

sometimes I run in the problem that devices in the USM not merged e.g. Host (Robot) and Device (created e.g. by net_connect). This happens if origin from robot and from net_connect is different. Normally with special qos_processor scripts the devices are merged and only one entry visible in USM. Sometimes this fails and devices not merged.

In this cases I cleaned niscaches, NULL out ci_metric_id in S_QOS_DATA, restarted data_engine and discovery server, but after a few minutes two entries appears.

 

Can someone explain how the merge of devices works in detail. Which probes does what and which DB tables are involved?

 

Thanks a lot

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