Microsoft System Center Orchestrator Cookbook | btcmu.info
5: Creating Runbooks for System Center Configuration Manager Tasks Chapter 6: System Center Orchestrator (SCORCH) is a powerful and versatile Relation Equals We need the specific user object in this case. first book "Mastering phpMyAdmin for Effective MySQL Management" in April Working With Relationships in the SCSM Orchestrator Integration Pack . Object GUID that the Affected User and the Created By User are the. Microsoft System Center Orchestrator R2 can bring added value and make the design aspect of Orchestrator R2 in a corporate environment, from a You'll need to add a filter, selecting Sam Account Name and Relation as Packt, pronounced 'packed', published its first book, Mastering phpMyAdmin for.
What happens is that as soon as I put some salt see load on the Writer, the slave nodes start to lag. When using the default single worker, that will have a significant impact.MySQL Database Tutorial - 22 - How to Join Tables
While using multiple workers, we see that the lag happens mainly on the node s with minimal 10ms network latency. The sad thing is that is not really going down with respect to the single thread worker, indicating that the simple minimal latency of 10ms is enough to affect replication.
Microsoft System Center 2012 Orchestrator Cookbook
Time to activate the flow control and have no lag: Unfortunately, this is not the case. As we can see, the lag of single worker remains high for Gr2 entries.
It is important to remember that at this time the Writer is processing one-third or less of the rows it is normally able to. It is also important to note that I set 25 to the entry limit in flow control, and the Gr3 and Gr4 nodes are still lagging more than 1K entries behind.
To clarify, let check the two graphs below: Using the Writer Master as a baseline in entry N, without flow control, the nodes slaves using Group Replication start to significantly lag behind the writer even with a light load. The distance in this PoC ranged from very minimal with 58 entriesup to much higher loads entries: Using flow control, the Writer Master diverges less, as expected.
If it has a significant drop in performance one-third or lessthe nodes still lag. The worst-case is up to entries. I need to underline here that we have no further way that I am aware of, anyway to tune the lag and prevent it from happening.
The gap is too high.
This graph shows the MySQL queries executed on all the four nodes, in the testing using threads-batch and flow control. As you can see, the Gr1 Writer is the first one to take off, followed by Gr2. Nodes Gr3 and Gr4 require a bit more, given the binlog transmission and 10ms delay. Once the data is there, they match inconsistently the Gr2 node.
This is an effect of flow control asking the Master to slow down. But as previously seen, the nodes will never match the Writer. The above graph shows the same test without flow control.
Relations — phpMyAdmin dev documentation
This means that without flow control set, the nodes lag around seconds behind the Master. We can also figure out the parent service request see hyperlink above and then we can traverse from the service request over to the Affected User. So — our runbook looks like this at a high level: This is what each activity does: Get Group Relationship — this activity finds all the objects of a specific class that are related to the runbook activity work item — in this case the Active Directory Group class.
Now we are going to do essentially the same thing to get the parent service request.
- SCSM2012: Automating the creation of relationships between CI’s
- Group Replication: The Sweet and the Sour
- Working With Relationships in the SCSM Orchestrator Integration Pack
So far this should seem pretty straightforward. Now we are going to get a little bit tricky. The next thing we are going to do is traverse from the service request over to the affected user and get that object.
Get User Relationship — This activity gets the relationship between the service request and the affected user. Get User Object — This activity gets the actual user object.
And the configuration dialogs: Seems the same right? There is a catch here. In the case of the Service Request being related to the User class there are actually multiple relationship types between those two classes. In fact there are three in the out of the box data model: Orchestrator will grab all of the related objects that are of the User class that are related to the Service Request and put them on the databus as published data. If you open up the Runbook Tester and run this runbook you will see this in the output: