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Differences between full synchronization and delta synchronization

Hi,

I need help and understand the following terms of integrations  full synchronization and delta synchronization

The delta synchronization must be executed immediately after executing full synchronization?

sincronizacion.PNG

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Re: Differences between full synchronization and delta synchronization

Hello ,

Delta only update the information and Full do all the steps to do a complete sync .

 

Best Regards,

Melissa Carranza Mejias
Customer Support Engineer

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Honored Contributor.
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Re: Differences between full synchronization and delta synchronization

that's it?

 

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Re: Differences between full synchronization and delta synchronization

delta only show the updates Cis and full create a complete sync process.

Melissa Carranza Mejias
Customer Support Engineer

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Micro Focus Expert
Micro Focus Expert

Re: Differences between full synchronization and delta synchronization

How does it know which CIs are updated since last run?

Which attribute does it accept or ignore to identify changes and where can that be defined.

We have a requirement to push delta changes but the 'Last scan date' is updated for all the CIs everytime scanner is run, so we don't want to push all 50,000 CIs every time in name of detla when no real configuration is changed in them.

Is there a way to exclude few attributes from delta scanning?

 

Regards,

Shishir.

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Acclaimed Contributor.
Acclaimed Contributor.

Re: Differences between full synchronization and delta synchronization

the difference between delta and full is far more complex than explained above by the microfocus representatives. 

First - you have to know that it really depends on the adapter. Some adapters have a lot different behaviour with delta, others - almost no difference. The points of caution are:

1. Delta uses the cache on the DataFlowProbe and knows what has been synchornized before. If you have enabled Auto Deletion in the adapter definition properties and on the synchronization job, then when using delta, UCMDB can delete CIs, which are no longer available through the population integration.

2. Full sync will not perform deletions of data which is no longer available in the system. 

3. If you schedule population job, by default it will do delta. If you want to do full sync, you have to export the XML of the integration point, and change a setting inside the job definition.

Cheers,

Petko Popadiyski

Freelance Microfocus CMS UCMDB Consulting

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Re: Differences between full synchronization and delta synchronization

To highlight additional aspect. The delta sync is counts amount of changes in CIs based on a sync TQL, and when it hits a treshold full sync is fired. So, even when you run delta sync, many times you will end up with full sync.

It should not be a functional differences between two syncs. In case full sync missing deletion of CIs in some of adapaters, IMHO it should be a defect.

Regards
-Dmitry Gomel, PMP
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